A method, apparatus, device and storage medium for configuring a sensing reference signal

Abstract

The application discloses a sensing reference signal configuration method, device and equipment and a storage medium. The method is applied to a first node, and the method comprises the following steps: sending first indication information to a second node, wherein the first indication information is used for indicating resource information related to a positioning reference signal which is configured by the first node for all terminals served by the first node; receiving first configuration information from the second node, and receiving a sensing reference signal based on the first configuration information.

Description

Technical Field

[0001] This invention relates to the field of communications, and more specifically to a method, apparatus, device, and storage medium for configuring a sensing reference signal. Background Technology

[0002] Currently, single-function wireless communication systems can no longer meet the diverse performance requirements of increasingly varied application scenarios. Therefore, an integrated communication and sensing system has been designed, capable of simultaneously providing communication, positioning, detection, imaging, and recognition capabilities. In a collaborative sensing mode involving multiple nodes, existing 5G base stations with sensing capabilities can achieve target sensing by sending a sensing reference signal (Sensing_RS), which is reflected back to the receiving node by the target. Prior to this, configuration information for the sensing reference signal needed to be obtained through signaling interaction between multiple nodes (i.e., 5G base stations or terminals).

[0003] Existing 5G base stations with uplink positioning capabilities can achieve uplink positioning by measuring the time difference of arrival (TDR) of the Sounding Reference Signal (SRS) emitted by the terminal. Previously, configuration information for the positioning SRS needed to be obtained through signaling interactions between the terminal, multiple 5G base stations, and the Location Management Function (LMF).

[0004] Since sensing reference signals do not require beamforming, they can be configured by reusing the sequence of positioning SRS. However, considering the uplink and downlink uniformity of cooperative sensing, existing methods for configuring sensing reference signals cannot directly reuse positioning SRS. Furthermore, for receiving nodes that possess both uplink positioning and cooperative sensing capabilities, they may receive positioning SRS transmitted by terminals and sensing reference signals transmitted by transmitting nodes on the same time-frequency resources. This makes them susceptible to interference from neighboring cells or other users, compromising the reception of sensing reference signals and affecting the results of cooperative sensing. Summary of the Invention

[0005] To address the existing technical problems, embodiments of the present invention provide a method, apparatus, device, and storage medium for configuring a sensing reference signal.

[0006] To achieve the above objectives, the technical solution of this invention is implemented as follows:

[0007] In a first aspect, embodiments of the present invention provide a method for configuring a sensing reference signal, the method being applied to a first node, the method comprising: sending first indication information to a second node, the first indication information being used to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves;

[0008] Receive first configuration information from the second node, and receive a sensing reference signal based on the first configuration information.

[0009] In the above scheme, the resource information includes occupied resource information and / or unoccupied resource information; and / or, the resource information includes at least one of the following: time domain resources, frequency domain resources, and code domain resources.

[0010] In the above scheme, sending the first indication information to the second node includes: the first node sending the first indication information to the second node through a first network function; or,

[0011] The first node directly sends the first instruction information to the second node.

[0012] In the above scheme, the first configuration information includes one or more of the following: the type of reference signal; bandwidth; transmission resource information of the reference signal; first information or second indication information; the first information is used to indicate that the first configuration information is configuration information for transmitting sensing reference signals; the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals or configuration information for transmitting sensing reference signals.

[0013] In the above scheme, the transmission resource information of the reference signal includes at least one of the following: time-domain resources, frequency-domain resources, code-domain resources; and / or,

[0014] The types of reference signals include: periodic, non-continuous, or aperiodic.

[0015] In the above scheme, receiving the first configuration information from the second node includes: the first node receiving the first configuration information sent by the second node through a first network function; or,

[0016] The first node directly receives the first configuration information sent by the second node.

[0017] In the above scheme, when the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; and / or,

[0018] When the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal.

[0019] In the above scheme, receiving the sensing reference signal based on the first configuration information includes: when the second indication information is used to indicate that the first configuration information is configuration information for sending the sensing reference signal, the first node receives the sensing reference signal based on the first configuration information.

[0020] In the above scheme, the method further includes: when the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals, the first node receives positioning reference signals based on the first configuration information.

[0021] In the above scheme, before sending the first indication information to the second node, the method further includes: the first node sending second configuration information to the first terminal and the second node respectively, wherein the second configuration information is used by the first terminal to send positioning reference signals to the first node and the second node respectively.

[0022] In the above scheme, before sending the first indication information to the second node, the method further includes: receiving positioning capability information sent by the first terminal.

[0023] Secondly, embodiments of the present invention provide a method for configuring a sensing reference signal, the method being applied to a second node, the method comprising: receiving first indication information from a first node, the first indication information being used to indicate resource information related to a positioning reference signal configured by the first node for all terminals it serves;

[0024] First configuration information is sent to the first node according to the first instruction information, so that the first node can receive the sensing reference signal.

[0025] In the above scheme, the resource information includes information on occupied resources and / or unoccupied resources; and / or,

[0026] The resource information includes at least one of the following: time domain resources, frequency domain resources, and code domain resources.

[0027] In the above scheme, sending the first configuration information to the first node according to the first indication information includes: the second node determining the transmission resource information of the sensing reference signal according to the first indication information and sending the first configuration information to the first node.

[0028] In the above scheme, the second node determines the transmission resource information of the sensing reference signal based on the first indication information, including: when the first indication information includes the already occupied resource information, determining the transmission resource information of the reference signal that is different from the already occupied resource information; and / or,

[0029] When the first indication information includes the unoccupied resource information, the transmission resource information of the reference signal is determined from the unoccupied resource information.

[0030] In the above scheme, receiving the first indication information from the first node includes: the second node receiving the first indication information sent by the first node through a first network function; or,

[0031] The second node directly receives the first instruction information sent by the first node.

[0032] In the above scheme, the first configuration information further includes one or more of the following: the type of reference signal; bandwidth; transmission resource information of the reference signal; first information or second indication information; the first information is used to indicate that the first configuration information is configuration information for transmitting sensing reference signals; the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals or configuration information for transmitting sensing reference signals.

[0033] In the above scheme, the transmission resource information of the reference signal includes at least one of the following: time-domain resources, frequency-domain resources, code-domain resources; and / or,

[0034] The types of reference signals include: periodic, non-continuous, or aperiodic.

[0035] In the above scheme, sending the first configuration information to the first node according to the first indication information includes: the second node sending the first configuration information to the first node through a first network function; or,

[0036] The second node sends the first configuration information directly to the first node.

[0037] In the above scheme, before receiving the first indication information from the first node, the method further includes: receiving second configuration information from the first node, wherein the second configuration information is used by the first terminal to send positioning reference signals to the first node and the second node respectively.

[0038] In the above scheme, when the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; and / or,

[0039] When the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal.

[0040] Thirdly, embodiments of the present invention also provide a sensing reference signal configuration device, the device being applied to a first node, the device comprising: a first transmitting unit and a first receiving unit; wherein...

[0041] The first sending unit is configured to send first indication information to the second node, wherein the first indication information is configured to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves;

[0042] The first receiving unit is configured to receive first configuration information from the second node and receive a sensing reference signal based on the first configuration information.

[0043] Fourthly, embodiments of the present invention also provide a sensing reference signal configuration device, the device being applied to a second node, the device comprising: a second receiving unit and a second transmitting unit; wherein,

[0044] The second receiving unit is configured to receive first indication information from the first node, wherein the first indication information is configured to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves;

[0045] The second sending unit is configured to send first configuration information to the first node according to the first indication information, so that the first node can receive the sensing reference signal.

[0046] Fifthly, embodiments of the present invention also provide a communication device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of the method applied to a first node or a second node as described in the embodiments of the present invention.

[0047] In a sixth aspect, embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method applied to a first node or a second node as described in the embodiments of the present invention.

[0048] In a seventh aspect, embodiments of the present invention also provide a computer program product, including a computer program that, when executed by a processor, implements the method described in the embodiments of the present invention for application to a first node or a second node.

[0049] The sensing reference signal configuration method, apparatus, device, and storage medium provided in this embodiment of the invention transmit first indication information for instructing a first node to configure resource information related to the positioning reference signal for all terminals served, and receive first configuration information from a second node. Based on the first configuration information, the sensing reference signal is received to complete the reconfiguration of the sensing reference signal. This achieves the goal of reducing interference from neighboring cells or other users while receiving the positioning reference signal, thus ensuring the reception of the sensing reference signal. Attached Figure Description

[0050] Figure 1 A schematic diagram of a collaborative perception scenario;

[0051] Figure 2 This is a schematic diagram of an uplink positioning scenario;

[0052] Figure 3 A schematic diagram of the interaction process for configuring the positioning SRS in the uplink time difference of arrival positioning method;

[0053] Figure 4 This is a schematic diagram illustrating a scenario where uplink positioning and collaborative sensing are simultaneously implemented according to an embodiment of the present invention.

[0054] Figure 5 This is a flowchart illustrating the sensing reference signal configuration method according to an embodiment of the present invention. Figure 1 ;

[0055] Figure 6 This is a flowchart illustrating the sensing reference signal configuration method according to an embodiment of the present invention. Figure 2 ;

[0056] Figure 7 This is a schematic diagram of the interaction flow of the sensing signal configuration method according to an embodiment of the present invention. Figure 1 ;

[0057] Figure 8 This is a schematic diagram of the first node receiving positioning reference signals and sensing reference signals based on different code domain resources in an embodiment of the present invention;

[0058] Figure 9 This is a schematic diagram of the interaction flow of the sensing signal configuration method according to an embodiment of the present invention. Figure 2 ;

[0059] Figure 10 This is a schematic diagram of the first node receiving positioning reference signals and sensing reference signals based on different frequency domain resources in an embodiment of the present invention;

[0060] Figure 11 Schematic diagram of the composition structure of the sensing signal configuration device provided in the embodiments of the present invention Figure 1 ;

[0061] Figure 12Schematic diagram of the composition structure of the sensing signal configuration device provided in the embodiments of the present invention Figure 2 ;

[0062] Figure 13 This is a schematic diagram of the hardware composition structure of a communication device provided in an embodiment of the present invention. Detailed Implementation

[0063] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0064] The technical solutions of this invention can be applied to various communication systems, such as GSM (Global System of Mobile communication), LTE (Long Term Evolution), or 5G systems. Optionally, a 5G system or 5G network can also be referred to as a New Radio (NR) system or NR network.

[0065] For example, the communication system used in this embodiment of the invention may include network devices and terminal devices (also referred to as terminals, communication terminals, etc.); the network device may be a device that communicates with the terminal device. The network device can provide communication coverage within a certain area and can communicate with terminals located within that area. Optionally, the network device may be a base station in various communication systems, such as an evolved Node B (eNB) in an LTE system, or a gNB in ​​a 5G or NR system.

[0066] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Communication devices may include network devices and terminals with communication functions. Network devices and terminal devices can be the specific devices described above, which will not be repeated here. Communication devices may also include other devices in the communication system, such as network controllers, mobility management entities, and other network entities. This embodiment of the present invention does not limit these.

[0067] It should be understood that the terms "system" and "network" are often used interchangeably in this document. The term "and / or" in this document merely describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, or B alone. Furthermore, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0068] The terms “first,” “second,” etc., used in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0069] An integrated communication and sensing system refers to a system that simultaneously possesses sensing capabilities such as communication, positioning, detection, imaging, and recognition through integrated design (spectrum resource sharing, integrated air interface, integrated hardware architecture, etc.), multi-point collaboration, and intelligent information interaction. The integrated operating mode is divided into independent sensing mode and collaborative sensing mode, depending on whether other nodes are required.

[0070] Currently, multi-node collaborative sensing modes typically involve sending sensing signals from transmitting nodes and receiving nodes (i.e., collaborative nodes) receiving reflected signals from the target to obtain characteristic parameters such as environmental attributes and state. Figure 1 As shown in the diagram. The sending and receiving nodes can include base stations, terminals, etc.

[0071] Existing uplink positioning methods utilize the time difference of arrival (SDR) of positioning signals emitted by multiple base stations or Wi-Fi access points. To better support uplink positioning, NR systems introduce a dedicated positioning SRS as the positioning signal, such as... Figure 2 As shown. Prior to this, configuration information for the positioning SRS needs to be obtained through signaling interaction between the terminal, multiple base stations, and the LMF. The current uplink positioning methods involve similar signaling interaction processes between the terminal, base stations, and the LMF, such as the Uplink Time Difference of Arrival (UL-TDOA) positioning method and the Uplink Angle of Arrival (UL-AOA) positioning method.

[0072] Figure 3 A schematic diagram illustrating the interaction flow for configuring the positioning SRS in the uplink time difference of arrival (TDOA) positioning method; for example... Figure 3 As shown, this method involves a terminal, two receiving nodes (a first base station and a second base station), and a central entity LMF. The specific interaction process is as follows:

[0073] Step 1: The terminal reports the Radio Resource Control (RRC) signaling carrying terminal capability information related to the positioning function to the first base station through the NR air interface;

[0074] Step 2: The terminal reports terminal capability information related to positioning function to LMF through Lightweight Presentation Protocol (LPP);

[0075] Step 3: The first node configures the positioning SRS configuration information based on the terminal's capability information related to the positioning function, and sends it to the terminal via the NR interface;

[0076] Step 4: The first node sends the SRS positioning configuration information to the LMF via the New Radio Positioning Protocol A (NRPPa), and the LMF then sends the SRS positioning configuration information to the second node that needs to cooperate with the positioning; or,

[0077] The first node sends the SRS positioning configuration information directly to the second node that needs to cooperate in positioning via the Xn interface protocol.

[0078] Figure 4 This is a schematic diagram illustrating a scenario where uplink positioning and collaborative sensing are simultaneously implemented according to an embodiment of the present invention; for example... Figure 4 As shown, in the process of achieving uplink positioning, both the third and fourth base stations need to act as receiving nodes to receive the positioning SRS sent by the terminal. In the process of achieving cooperative sensing, the third base station needs to act as the sending node to send sensing reference signals, and the fourth base station needs to act as the receiving node to receive the reflected signals reflected by the target.

[0079] In the process of implementing cooperative sensing, for transmitting nodes that have both uplink positioning and cooperative sensing functions, when configuring the sensing reference signal sent by the transmitting node to the receiving node that needs cooperative sensing, since beamforming is not required, the sensing reference signal can be configured using a ZC (Zadoff-Chu) sequence with constant amplitude and good cross-correlation. For example, the sequence generation method of positioning SRS can be reused.

[0080] However, existing positioning SRS uses an uplink reference signal sent by the terminal, i.e. Figure 2 In this system, both the first and second base stations are receiving nodes, and there are no sensing reference signals transmitted by the base stations. Furthermore, due to the need to consider the uplink and downlink consistency of cooperative sensing, it is necessary to use methods such as... Figure 1The transmitting and receiving nodes in the system implement cooperative awareness, therefore the positioning SRS cannot be directly reused. Furthermore, while the configuration information of the positioning SRS is identical for each base station participating in the positioning process, considering the presence of cooperative awareness, such as... Figure 4 As shown, the fourth base station may receive the sensing reference signal sent by the third node and the positioning SRS sent by the terminal on the same time and frequency resources. It is susceptible to interference from neighboring cells or other users, and cannot guarantee the reception of the sensing reference signal, thus affecting the results of cooperative sensing.

[0081] Therefore, how to reconfigure the sensing reference signal so that the receiving node can receive the sensing reference signal without interference from neighboring cells or other users when receiving the positioning SRS, thereby achieving cooperative sensing with the sending node, has become an urgent problem to be solved.

[0082] Based on this, this invention proposes a sensing signal configuration method, which aims to ensure the reception of the sensing reference signal while receiving the positioning SRS by reconfiguring the sensing reference signal. Figure 5 This is a flowchart illustrating the sensing reference signal configuration method according to an embodiment of the present invention. Figure 1 ;like Figure 5 As shown, the method is applied to the first node, and the method includes:

[0083] Step 101: Send first indication information to the second node, the first indication information being used to indicate the resource information related to the positioning reference signal configured by the first node for all terminals it serves;

[0084] Step 102: Receive first configuration information from the second node, and receive a sensing reference signal based on the first configuration information.

[0085] Here, a node can be a base station, which can be a network-side device in a wireless communication system, such as a gNB used in a 5G system. The first node can be either a receiving node used to receive positioning reference signals in uplink positioning or a receiving node used to receive sensing reference signals in cooperative sensing; the second node can be either a receiving node used to receive positioning reference signals in uplink positioning or a transmitting node used to transmit sensing reference signals in cooperative sensing.

[0086] A terminal is a device that can send positioning reference signals to a node. A terminal can connect to one or more base stations via the NR air interface to receive services provided by the base stations. Terminals can be IoT user equipment, such as sensor devices, mobile phones (or "cellular" phones), and computers with IoT user equipment capabilities. These can be fixed, portable, pocket-sized, handheld, built-in computer devices, or vehicle-mounted devices. Examples include stations (STAs), subscriber units, subscriber stations, mobile stations, mobile stations, remote stations, access points, remote terminals, access terminals, user terminals, user agents, user devices, or user equipment. Alternatively, a terminal can be a device on an unmanned aerial vehicle (UAV). Alternatively, a terminal can be a vehicle-mounted device, such as a vehicle computer with wireless communication capabilities, or a wireless user equipment connected to an external vehicle computer. Alternatively, a terminal can be a roadside device, such as a street light, traffic light, or other roadside device with wireless communication capabilities.

[0087] In this embodiment, the first node sends first indication information to the second node, which instructs the first node to configure resource information related to the positioning reference signal for all terminals it serves. This first indication information informs the second node of the resource information related to the positioning reference signal sent by the terminal. The positioning reference signal may be a positioning SRS specifically introduced in the NR system to better support uplink positioning functions. The method by which the first node sends the first indication information will be described later in this embodiment.

[0088] In some implementations, the resource information includes occupied resource information and / or unoccupied resource information; and / or, the resource information includes at least one of the following: time-domain resources, frequency-domain resources, and code-domain resources.

[0089] In this embodiment, the first node provides first indication information of resource information related to the positioning reference signal configured for all terminals served. This information may be resource information already occupied when the terminal sends the positioning reference signal, or resource information not occupied when the terminal sends the positioning reference signal. The resource information may be one or more of time domain resources, frequency domain resources, and code domain resources.

[0090] In other words, the first indication information can be one or more of the time domain resources, frequency domain resources, and code domain resources that the terminal has occupied when sending the positioning reference signal, or it can be one or more of the time domain resources, frequency domain resources, and code domain resources that the terminal has not occupied when sending the positioning reference signal.

[0091] Among them, time-domain resources represent time-domain information within the time domain. For example, the time-domain resources may include the number of time-domain start symbols and the number of sustained symbols; frequency-domain resources represent frequency-domain information within the frequency domain. For example, the frequency-domain information may include the bias value under the frequency-domain comb structure mapping; code-domain resources represent code-domain information within the frequency domain. The code-domain information may include the cyclic shift number under the frequency-domain comb structure mapping.

[0092] It should be noted that by sending a first indication message to the second node, the first node informs the second node of the resource information already occupied or unoccupied when the terminal sends the positioning reference signal, thereby enabling the second node to avoid occupying the same resource information when configuring the sensing reference signal. This invention does not impose specific restrictions on the selection method of occupied or unoccupied resource information, or on the selection of one or more of the time-domain resources, frequency-domain resources, and code-domain resources; generally, selecting one type of resource information is sufficient to achieve the purpose of avoiding the occupation of the same resource information.

[0093] In some implementations, sending the first indication information to the second node includes: the first node sending the first indication information to the second node through a first network function; or, the first node directly sending the first indication information to the second node.

[0094] In this embodiment, the first node can send the first indication information to the second node through the first network function, or it can send the first indication information directly to the second node without going through the first network function. For example, the first network function can be the central entity LMF that implements uplink positioning.

[0095] As an example, during the configuration of the sensing reference signal, the first node can send the first indication information to the second node via the NRPPa protocol through the LMF using RRC signaling. That is, the first indication information is first sent to the LMF via the NRPPa protocol, and then the LMF sends the first indication information to the second node via the NRPPa protocol. Alternatively, the first node can send the first indication information to the second node directly via the Xn interface protocol through RRC signaling without going through the LMF.

[0096] In this embodiment, after the first node sends first indication information to the second node, which is used to instruct the first node to configure resource information related to the positioning reference signal for all terminals served by the first node, the first node receives first configuration information sent by the second node according to the first indication information, and receives the sensing reference signal based on the first configuration information, thereby achieving collaborative sensing through cooperation with the second node.

[0097] In some implementations, the first configuration information includes one or more of the following: the type of reference signal; bandwidth; transmission resource information of the reference signal; first information or second indication information; the first information is used to indicate that the first configuration information is configuration information for transmitting sensing reference signals; the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals or configuration information for transmitting sensing reference signals.

[0098] Here, the first configuration information received by the first node from the second node may include one or more of the following: the type of the reference signal, bandwidth, first information or second indication information, and transmission resource information of the reference signal. Specifically, the first information indicates that the first configuration information is configuration information for transmitting a sensing reference signal, and the second indication information indicates that the first configuration information is configuration information for receiving a positioning reference signal or configuration information for transmitting a sensing reference signal.

[0099] In this embodiment, the first configuration information may be the configuration information of the sensing reference signal sent by the second node. The type of the reference signal may be the type of sensing reference signal sent by the second node, the bandwidth may be the bandwidth of the sensing reference signal, and the transmission resource information of the reference signal may be the resource information occupied when transmitting the sensing reference signal.

[0100] It should be noted that, since the first configuration information received by the first node is configured by the second node according to the first indication information, for a second node that has both uplink positioning function and cooperative sensing function, the first configuration information can be configuration information added by the second node in the NRPPa protocol. In this case, the first configuration information includes first information used to characterize that the first configuration information is for sending sensing reference signals; or the second node can obtain the first configuration information by reusing the configuration information of the positioning reference signal. In this case, the first configuration information includes second indication information used to indicate whether the first configuration information is for receiving positioning reference signals or for sending sensing reference signals.

[0101] The process of obtaining the first configuration information by reusing the configuration information of the positioning reference signal of the second node in this embodiment of the invention will be described in detail on the second node side.

[0102] In some implementations, the transmission resource information of the reference signal includes at least one of the following: time domain resources, frequency domain resources, code domain resources; and / or, the type of the reference signal includes: periodic, non-continuous, or non-periodic.

[0103] In this embodiment, the transmission resource information of the reference signal in the first configuration information can be the resource information already occupied when the second node transmits the sensing reference signal. The transmission resource information of the reference signal can include one or more of the time-domain resources, frequency-domain resources, and code-domain resources already occupied when transmitting the sensing reference signal. The type of the reference signal can include the periodicity, non-continuousness, or non-periodicity of the transmitted sensing reference signal. The specific information that the time-domain resources, frequency-domain resources, and code-domain resources can include has been described above and will not be repeated here.

[0104] In some implementations, receiving the first configuration information from the second node includes: the first node receiving the first configuration information sent by the second node through a first network function; or, the first node directly receiving the first configuration information sent by the second node.

[0105] In this embodiment, the first node can receive the first configuration information sent by the second node through the first network function, or it can directly receive the first configuration information sent by the second node without going through the first network function. For example, the first network function can be the central entity LMF that implements uplink positioning.

[0106] As an example, during the configuration of the sensing reference signal, the first node can receive the first configuration information sent by the second node via RRC signaling using the NRPPa protocol through the LMF. That is, after the second node sends the first configuration information to the LMF via the NRPPa protocol, the first node receives the first configuration information sent by the LMF via the NRPPa protocol. Alternatively, the first node can directly receive the first configuration information sent by the second node via RRC signaling using the Xn interface protocol without going through the LMF.

[0107] In some embodiments, when the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; and / or, when the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending sensing reference signals.

[0108] In this embodiment, when the second node obtains the first configuration information by reusing the configuration information of the positioning reference signal, the second indication information included in the first configuration information is a first identifier set to a first preset value or a second preset value.

[0109] The second indication information serves as a reference signal usage indication added to the configuration information of the reused positioning reference signal. When the second indication information is set to the first identifier with the first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; when the second indication information is set to the first identifier with the second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending sensing reference signals.

[0110] As an example, the first preset value can be set to 0 or 1. When the first identifier is 0, it indicates that the first configuration information is the configuration information for receiving positioning reference signals, that is, it instructs the first node to receive positioning reference signals. When the first identifier is 1, it indicates that the first configuration information is the configuration information for sending sensing reference signals, that is, it instructs the first node to receive sensing reference signals sent by the second node.

[0111] In some implementations, receiving the sensing reference signal based on the first configuration information includes: when the second indication information is used to indicate that the first configuration information is configuration information for sending the sensing reference signal, the first node receives the sensing reference signal based on the first configuration information.

[0112] In this embodiment, when the second indication information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal, that is, when the second indication information is a first identifier set to a first preset value, the first node can receive the sensing reference signal sent by the second node based on the first configuration information including the second indication information, thereby achieving cooperative sensing with the second node.

[0113] In some embodiments, the method further includes: when the second indication information is used to indicate that the first configuration information is configuration information for receiving a positioning reference signal, the first node receives the positioning reference signal based on the first configuration information.

[0114] In this embodiment, when the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals, that is, when the second indication information is a first identifier set to a second preset value, the first node can receive the positioning reference signal sent by the terminal based on the first configuration information including the second indication information, thereby achieving uplink positioning with the second node.

[0115] In some embodiments, before sending the first indication information to the second node, the method further includes: the first node sending second configuration information to the first terminal and the second node respectively, wherein the second configuration information is used by the first terminal to send positioning reference signals to the first node and the second node respectively.

[0116] In this embodiment, before the first node sends the first indication information to the second node, the first node sends second configuration information to the first terminal and the second node respectively, so that the first terminal among all terminals served by the first node can send positioning reference signals to the first node and the second node respectively based on the second configuration information. For example, the second configuration information may be the configuration information of the positioning reference signal (e.g., the configuration information of the positioning SRS).

[0117] It should be noted that the first node can send the second configuration information to the second node through the first network function (such as the central entity LMF), or it can send the second configuration information directly to the second node without going through the first network function.

[0118] For example, the first node can send the second configuration information to the terminal via the NR air interface. Furthermore, the first node can send the second configuration information to the second node via the LMF using the NRPPa protocol; that is, the first node first sends the second configuration information to the LMF using the NRPPa protocol, and then the LMF sends the second configuration information to the second node using the NRPPa protocol. Alternatively, the first node can send the second configuration information directly to the second node using the Xn interface protocol without going through the LMF.

[0119] In some implementations, before sending the first indication information to the second node, the method further includes receiving positioning capability information sent by the first terminal.

[0120] In this embodiment, before the first node sends the first instruction information to the second node, it receives the positioning capability information sent by the first terminal among all terminals served by the first node. This allows the first node to configure second configuration information based on the positioning capability information, thereby sending the second configuration information to both the first terminal and the second node. The positioning capability information of the first terminal can be terminal capabilities related to positioning capabilities.

[0121] For example, the first terminal can send positioning capability information to the first node via the NR air interface. Simultaneously, the first terminal can also send positioning capability information to the LMF via the LPP protocol.

[0122] In this embodiment, the first node sends first indication information to the second node, which is used to indicate resource information related to the positioning reference signal configured for all terminals serving the service, receives first configuration information from the second node, and receives the sensing reference signal based on the first configuration information, thereby achieving cooperative sensing with the second node.

[0123] This invention proposes a method for configuring sensing signals. Figure 6 This is a flowchart illustrating the sensing reference signal configuration method according to an embodiment of the present invention. Figure 2 ;like Figure 6 As shown, the method is applied to the second node, and the method includes:

[0124] Step 201: Receive first indication information from the first node, the first indication information being used to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves;

[0125] Step 202: Send first configuration information to the first node according to the first instruction information, so that the first node can receive the sensing reference signal.

[0126] Here, a node can be a base station, which can be a network-side device in a wireless communication system, such as a gNB used in a 5G system. The second node can be either a receiving node used to receive positioning reference signals in uplink positioning or a transmitting node used to transmit sensing reference signals in cooperative sensing; the first node can be either a receiving node used to receive positioning reference signals in uplink positioning or a receiving node used to receive sensing reference signals in cooperative sensing.

[0127] In this embodiment, the second node receives first indication information sent by the first node, which instructs the first node to configure resource information related to the positioning reference signal for all terminals it serves. The second node then obtains the resource information related to the positioning reference signal sent by the terminal through the first node. The positioning reference signal may be a positioning SRS specifically introduced in the NR system to better support uplink positioning functions.

[0128] In some implementations, the resource information includes occupied resource information and / or unoccupied resource information; and / or, the resource information includes at least one of the following: time-domain resources, frequency-domain resources, and code-domain resources.

[0129] In this embodiment, the first indication information received by the second node, which is the resource information related to the positioning reference signal configured by the first node for all the terminals it serves, can be the resource information that has been occupied when the terminal sends the positioning reference signal, or the resource information that has not been occupied when the terminal sends the positioning reference signal. The resource information can be one or more of time domain resources, frequency domain resources, and code domain resources.

[0130] In other words, the first indication information can be one or more of the time domain resources, frequency domain resources, and code domain resources that the terminal has occupied when sending the positioning reference signal, or it can be one or more of the time domain resources, frequency domain resources, and code domain resources that the terminal has not occupied when sending the positioning reference signal.

[0131] Among them, time-domain resources represent time-domain information within the time domain. For example, the time-domain resources may include the number of time-domain start symbols and the number of sustained symbols; frequency-domain resources represent frequency-domain information within the frequency domain. For example, the frequency-domain information may include the bias value under the frequency-domain comb structure mapping; code-domain resources represent code-domain information within the frequency domain. The code-domain information may include the cyclic shift number under the frequency-domain comb structure mapping.

[0132] It should be noted that by sending a first indication message to the second node, the first node informs the second node of the resource information already occupied or unoccupied when the terminal sends the positioning reference signal, thereby enabling the second node to avoid occupying the same resource information when configuring the sensing reference signal. This invention does not impose specific restrictions on the selection method of occupied or unoccupied resource information, or on the selection of one or more of the time-domain resources, frequency-domain resources, and code-domain resources; generally, selecting one type of resource information is sufficient to achieve the purpose of avoiding the occupation of the same resource information.

[0133] In this embodiment, after receiving the first instruction information from the first node, the second node will send the first configuration information to the first node for the first node to receive the sensing reference signal, thereby achieving cooperative sensing with the first node.

[0134] In some implementations, sending the first configuration information to the first node according to the first indication information includes: the second node determining the transmission resource information of the sensing reference signal according to the first indication information, and sending the first configuration information to the first node.

[0135] In this embodiment, after receiving the first indication information, the second node first determines the transmission resource information of the sensing reference signal based on the first indication information, and then determines the first configuration information after determining the transmission resource information of the sensing signal, and sends the first configuration information to the first node. For example, the transmission resource information of the reference signal may be the transmission resource information of the sensing reference signal.

[0136] In some implementations, the second node determines the transmission resource information of the sensing reference signal based on the first indication information, including: when the first indication information includes the occupied resource information, determining the transmission resource information of the reference signal that is different from the occupied resource information; and / or, when the first indication information includes the unoccupied resource information, determining the transmission resource information of the reference signal from the unoccupied resource information.

[0137] In this embodiment, the first indication information is the resource information that has been occupied or not occupied when the terminal sends the positioning reference signal, and the resource information for sending the sensing reference signal is the resource information occupied when sending the sensing signal. That is to say, the second node can select the resource information that can be occupied when sending the sensing signal based on the resource information that has been occupied or not occupied when the terminal sends the positioning reference signal.

[0138] Specifically, when the first indication information includes information on occupied resources, transmission resource information for the reference signal that is different from the information on occupied resources is determined; when the first indication information includes information on unoccupied resources, transmission resource information for the reference signal is determined from the information on unoccupied resources. That is, the transmission resource information for the reference signal is selected from the information on unoccupied resources and is different from the information on occupied resources.

[0139] As an example, when the first indication information is the frequency domain resources already occupied when transmitting the positioning reference signal, such as when the frequency domain offset information Comb Offset is 1, it can be determined that the frequency domain offset information Comb Offset occupied when transmitting the sensing reference signal is 0 based on this resource information; when the first indication information is the code domain resources not occupied when transmitting the positioning reference signal, such as the cyclic displacement index n SRS n SRS When the Cyclic Shift ID is 2, 3, or 4, the cyclic displacement label used when sending the sensing reference signal can be selected from this resource information. The Cyclic Shift ID is 3.

[0140] In some implementations, receiving the first indication information from the first node includes: the second node receiving the first indication information sent by the first node through a first network function; or, the second node directly receiving the first indication information sent by the first node.

[0141] In this embodiment, the second node can receive the first indication information sent by the first node through the first network function, or it can directly receive the first indication information sent by the first node without going through the first network function. For example, the first network function can be a central entity LMF that implements uplink positioning.

[0142] As an example, during the configuration of the sensing reference signal, the second node can receive the first indication information sent by the first node via RRC signaling using the NRPPa protocol through the LMF. That is, the first node first sends the first indication information to the LMF using the NRPPa protocol, and then the second node receives the first indication information sent by the LMF via the NRPPa protocol. Alternatively, the second node can directly receive the first indication information sent by the first node via RRC signaling using the Xn interface protocol without going through the LMF.

[0143] In some implementations, the first configuration information further includes one or more of the following: the type of reference signal; bandwidth; transmission resource information of the reference signal; first information or second indication information; the first information is used to indicate that the first configuration information is configuration information for transmitting sensing reference signals; the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals or configuration information for transmitting sensing reference signals.

[0144] Here, the first configuration information sent by the second node may include one or more of the following: the type of reference signal, bandwidth, first information or second indication information, and transmission resource information of the reference signal. Specifically, the first information indicates that the first configuration information is configuration information for transmitting a sensing reference signal, and the second indication information indicates that the first configuration information is configuration information for receiving a positioning reference signal or configuration information for transmitting a sensing reference signal.

[0145] In this embodiment, the first configuration information may be the configuration information of the sensing reference signal sent by the second node. The type of the reference signal may be the type of sensing reference signal sent by the second node, the bandwidth may be the bandwidth of the sensing reference signal, and the transmission resource information of the reference signal may be the resource information occupied when transmitting the sensing reference signal.

[0146] It should be noted that, since the first configuration information sent by the second node is configured according to the first indication information, for a second node that has both uplink positioning function and cooperative sensing function, the first configuration information can be configuration information added by the second node in the NRPPa protocol. In this case, the first configuration information includes first information used to characterize that the first configuration information is for sending sensing reference signals; or the second node can obtain the first configuration information by reusing the configuration information of the positioning reference signal. In this case, the first configuration information includes second indication information used to indicate whether the first configuration information is for receiving positioning reference signals or for sending sensing reference signals.

[0147] As an example, the second node can configure itself into new configuration information by adding the type, bandwidth, and transmission resource information of the reference signal, as well as first information to characterize the first configuration information as transmitting a sensing reference signal, to the NRPPa protocol. The specific process by which the first node receives the sensing reference signal based on the added configuration information will be described in subsequent embodiments.

[0148] As another example, the second node can also reuse the configuration information of the positioning reference signal to obtain the first configuration information. Specifically, the first configuration information is formed by replacing the transmission resource information of the positioning reference signal in the configuration information of the positioning reference signal sent by the first node with the transmission resource information of the sensing reference signal, and adding second indication information to indicate whether the first configuration information is for receiving the positioning reference signal or for sending the sensing reference signal. The transmission resource information of the positioning reference signal refers to the resource information occupied when sending the positioning reference signal, including one or more of time-domain resources, frequency-domain resources, and code-domain resources. The specific process by which the first node receives the sensing reference signal based on the reused configuration information of the positioning reference signal will be described in subsequent embodiments.

[0149] In some implementations, the transmission resource information of the reference signal includes at least one of the following: time domain resources, frequency domain resources, code domain resources; and / or, the type of the reference signal includes: periodic, non-continuous, or non-periodic.

[0150] In this embodiment, the transmission resource information of the reference signal in the first configuration information can be the resource information already occupied when the second node transmits the sensing reference signal. The transmission resource information of the reference signal can include one or more of the time-domain resources, frequency-domain resources, and code-domain resources already occupied when transmitting the sensing reference signal. The type of the reference signal can include the periodicity, non-continuousness, or non-periodicity of the transmitted sensing reference signal. The specific information that the time-domain resources, frequency-domain resources, and code-domain resources can include has been described above and will not be repeated here.

[0151] In some implementations, sending the first configuration information to the first node according to the first indication information includes: the second node sending the first configuration information to the first node through a first network function; or, the second node directly sending the first configuration information to the first node.

[0152] In this embodiment, the second node can send the first configuration information to the first node through the first network function, or it can send the first configuration information directly to the first node without going through the first network function. For example, the first network function can be the central entity LMF that implements uplink positioning.

[0153] As an example, during the configuration of the sensing reference signal, the second node can send the first configuration information to the first node via the NRPPa protocol through the LMF using RRC signaling. That is, the second node first sends the first configuration information to the LMF via the NRPPa protocol, and then the LMF sends the first configuration information to the first node via the NRPPa protocol. Alternatively, the second node can send the first configuration information to the first node directly via the Xn interface protocol through RRC signaling without going through the LMF.

[0154] In some embodiments, before receiving the first indication information from the first node, the method further includes: receiving second configuration information from the first node, the second configuration information being used by the first terminal to send positioning reference signals to the first node and the second node respectively.

[0155] In this embodiment, before the second node receives the first indication information from the first node, it can also receive second configuration information sent by the first node. This second configuration information is also sent by the first node to the first terminal among all terminals served by the first node, allowing the first terminal to send positioning reference signals to both the first and second nodes based on the second configuration information. For example, the second configuration information may be configuration information for positioning reference signals (e.g., configuration information for positioning SRS).

[0156] It should be noted that the second node can receive the second configuration information sent by the first node through the first network function (such as the central entity LMF), or it can receive the second configuration information sent by the first node directly without going through the first network function.

[0157] For example, the second node can receive the second configuration information sent by the first node using the NRPPa protocol through the LMF. That is, the first node first sends the second configuration information to the LMF using the NRPPa protocol, and then the second node receives the second configuration information sent by the LMF using the NRPPa protocol. Alternatively, the second node can directly receive the second configuration information sent by the first node using the Xn interface protocol without going through the LMF.

[0158] In some embodiments, when the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; and / or, when the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending sensing reference signals.

[0159] In this embodiment, when the second node obtains the first configuration information by reusing the configuration information of the positioning reference signal, the second indication information included in the first configuration information is a first identifier set to a first preset value or a second preset value.

[0160] The second indication information serves as a reference signal usage indication added to the configuration information of the reused positioning reference signal. When the second indication information is set to the first identifier with the first preset value, the second indication information is used to indicate that the first configuration information is the configuration information for the second node to receive the positioning reference signal. When the second indication information is set to the first identifier with the second preset value, the second indication information is used to indicate that the first configuration information is the configuration information for the second node to send the sensing reference signal.

[0161] As an example, the first preset value can be set to 0 or 1. When the first identifier is 0, it indicates that the first configuration information is the configuration information for receiving positioning reference signals, that is, it instructs the first node to receive positioning reference signals. When the first identifier is 1, it indicates that the first configuration information is the configuration information for sending sensing reference signals, that is, it instructs the first node to receive sensing reference signals sent by the second node.

[0162] In this embodiment, the second node receives first indication information sent by the first node, which is used to instruct the first node to configure resource information related to the positioning reference signal for all terminals served by the first node. Based on the first indication information, the second node determines the configuration information of the sensing reference signal and sends first configuration information to the first node so that the first node can receive the sensing reference signal and thus achieve cooperative sensing with the first node.

[0163] As an example, Figure 7 This is a schematic diagram of the interaction flow of the sensing signal configuration method according to an embodiment of the present invention. Figure 1 ;like Figure 7 As shown, when the first node receives the sensing reference signal based on the configuration information of the sensing reference signal reconfigured by the second node, the specific process of configuring the sensing reference signal is as follows:

[0164] Step 301: The first terminal among all terminals served by the first node reports terminal information related to positioning capabilities to the first node through the NR air interface.

[0165] Step 302: At the same time, the first terminal also needs to report terminal information related to positioning capabilities to the LMF through the LPP protocol.

[0166] Step 303: The first node configures the second configuration information, namely the location SRS configuration information, according to the positioning capability information reported by the first terminal, and sends the second configuration information to the first terminal so that the first terminal can send the location SRS to the first node and the second node respectively.

[0167] For example, the pseudocode for configuring the second configuration information in the first node is as follows:

[0168]

[0169]

[0170] Here, SRS-PosResource represents the configured RRC layer parameters. Specifically: transmissionComb represents the value of the Comb configuration for the positioning SRS transmission comb; combOffset represents the offset value occupied by the configured positioning SRS under its respective frequency domain comb structure mapping; cyclicShift represents the cyclic shift index occupied by the configured positioning SRS under its respective frequency domain comb structure mapping; resourceMapping represents the position of the time domain symbol (i.e., Orthogonal Frequency Division Multiplexing symbol, OFDM) occupied within the configured positioning SRS transmission time slot; startPosition represents the starting position in the time domain within the positioning SRS transmission time slot, i.e., the starting symbol; nrofSymbols represents the number of symbols occupied, i.e., the number of continuous symbols; freqDomainShift represents the configured frequency domain offset; and freqHopping represents the configured frequency hopping related parameters. The above pseudocode implements the configuration information of the positioning SRS for the first node.

[0171] Step 304: At the same time, the first node also needs to send the configured second configuration information to the LMF via the NRPPa protocol, and then the LMF sends it to the second node via the NRPPa protocol; or the first node can directly send the second configuration information to the second node via the Xn interface protocol.

[0172] For example, the second configuration information sent by the first node to the first terminal and the second node respectively can be as shown in Table 1:

[0173] Table 1

[0174]

[0175]

[0176] The information element IE in the first configuration information includes: the Positioning SRS Resource ID, the offset value and cyclic shift number under the selected different positioning SRS transmission comb configurations (including Comb2, 4, and 8), the start position and number of symbols in the time domain within the positioning SRS transmission slot, the frequency domain shift, and the frame skipping related parameter C-SRS. Each element has its own corresponding value.

[0177] Based on the pseudocode of the first node configuring the second configuration information, it can be understood that the second configuration information includes resource information such as time domain resources, frequency domain resources, and code domain resources occupied by the positioning SRS. According to the above configuration, the configuration information of the positioning SRS configured by the first node is as follows: in the 12th symbol of one time slot, the total bandwidth of the frequency domain positioning SRS is 4 resource blocks (RBs), the comb structure is comb2, the offset value is 0, and the cyclic offset index is n. SRS The value is 1.

[0178] In Table 1, when the comb structure is configured as CombTwo, the Cyclic Shift value of 1 indicates that the first node selects the cyclic displacement number that has been used when sending the positioning SRS by further sending the first indication information to the second node. This allows the second node to avoid the used cyclic displacement number when configuring the configuration information of the sensing reference signal according to the first indication information, thereby preventing interference from neighboring cells or other users when the first node receives the sensing reference signal.

[0179] Step 305: The first node sends the first indication information, including the occupied code domain resources, to the LMF via the NRPPa protocol, and then the LMF sends it to the second node via the NRPPa protocol; or the first node can directly send the first indication information to the second node via the Xn interface protocol.

[0180] For example, the first indication information sent by the first node to the second node can be as shown in Table 2:

[0181] Table 2

[0182]

[0183] The IE in the information element of the first indication information includes: Requested SRS Transmission Characteristics, Cyclic Shift ID, Routing ID, and NRPPa Transaction ID, each with its own value.

[0184] As shown in Table 2, when the first indication information instructs the first terminal to send the location SRS, the cyclic shift ID in the code field resources already occupied includes relevant configurations and parameters for that code field resource. The dashed area represents the cyclic shift ID n already occupied (or used) in the location SRS configuration information configured by the first node for the first terminal. SRS The value is 1.

[0185] Step 306: The second node determines the transmission resource information of the sensing reference signal according to the first indication information, thereby reconfiguring the configuration information of the sensing reference signal, i.e. the first configuration information, and sends the first configuration information to the LMF through the NRPPa protocol, and then the LMF sends it to the first node through the NRPPa protocol; or the second node can directly send the first configuration information to the first node through the Xn interface protocol.

[0186] For example, the first configuration information configured by the second node according to the first instruction information can be shown in Table 3:

[0187] Table 3

[0188]

[0189]

[0190] The relevant explanations of the information elements included in the IE in the first configuration information have been described in Table 1 and will not be repeated here. It should be noted that this embodiment of the invention is a method for adding configuration information of the sensing reference signal to the second node. The content of the newly added first configuration information is not specifically limited. The similarity between the configuration information in Table 3 and Table 1 does not indicate that the configuration information of the positioning reference signal has been reused.

[0191] As shown in Table 3, the first configuration information includes the resource information occupied by transmitting the sensing reference signal. According to the above configuration of the sensing reference signal, the configuration information of the second node is as follows: in the 12th symbol of one time slot, the total bandwidth of the frequency domain positioning SRS is 8 RBs, the comb structure is comb2, the offset value is 0, and the cyclic shift index is n. Sensing_RS The value is 3.

[0192] In Table 3, when the comb structure is configured as CombTwo, the Cyclic Shift value is 3, indicating that the second node configures a different cyclic displacement index from the cyclic displacement index in the code domain resources already occupied when sending the positioning SRS, based on the cyclic displacement index in the first indication information. In other words, it configures an unoccupied cyclic displacement index n. Sensing_RS The value is 3.

[0193] It should be noted that when selecting unoccupied resource information based on code domain resources, considering the positive and negative correlations when receiving different signals on the same time domain and frequency domain resources, a label that is far from the cyclic displacement label that was already occupied when transmitting the positioning reference signal can be selected as the cyclic displacement label when transmitting the sensing signal.

[0194] Furthermore, since this embodiment employs a method of reconfiguring the configuration information of the sensing reference signal—that is, instead of reusing the configuration information of the positioning SRS, a new configuration information is added—the first configuration information includes first information indicating that the first configuration information is for transmitting the sensing reference signal, so that the first node can receive the sensing reference signal based on the first configuration information. For example, the Sensing RS Resource ID in Table 3 is used as the first information to indicate that the first node uses this first configuration information to receive the sensing reference signal.

[0195] It should be noted that when using the method of adding new configuration information, the position of the first information in the first configuration information can also be other information besides the first information. For example, when the position is the second information with the content of Positioning RSResource ID, it is used to indicate to the first node that the first configuration information is used to receive positioning SRS signals.

[0196] Figure 8 This is a schematic diagram illustrating the first node receiving positioning reference signals and sensing reference signals based on different code domain resources in an embodiment of the present invention; as shown. Figure 8 As shown, the first terminal among all terminals served by the first node occupies 4 out of the total bandwidth of the sensing reference signal (RB) as the positioning SRS bandwidth, and occupies the 12th symbol in one time slot to transmit the positioning SRS. At the same time, the second node occupies the same time domain in the total bandwidth of the 8 RBs in the same frequency domain to transmit the sensing reference signal. Since the cyclic shift numbers occupied by the positioning SRS and the sensing reference signal are 1 and 3 respectively, the two signals occupy different code domain resources in the same time domain and frequency domain. That is, the sensing reference signal avoids the code domain resources occupied by the positioning SRS through the code division of the reference signal, reduces interference from neighboring cells or other users, and thus better achieves cooperative sensing.

[0197] As an example, Figure 9This is a schematic diagram of the interaction flow of the sensing signal configuration method according to an embodiment of the present invention. Figure 2 ;like Figure 9 As shown, unlike the previous embodiment of the present invention, for the first node, in addition to exchanging different cyclic shift codes (i.e., code division) with the second node, it can also exchange different frequency domain offset values ​​(i.e., frequency division) with the second node. Furthermore, when the first node receives the sensing reference signal based on the configuration information of the positioning reference signal multiplexed by the second node, the specific process of the sensing reference signal configuration method is as follows:

[0198] Step 401: The first terminal among all terminals served by the first node reports terminal information related to positioning capabilities to the first node through the NR air interface.

[0199] Step 402: At the same time, the first terminal also needs to report terminal information related to positioning capabilities to the LMF through the LPP protocol.

[0200] Step 403: The first node configures the second configuration information, i.e., the location SRS configuration information, according to the positioning capability information reported by the first terminal, and sends the second configuration information to the first terminal so that the first terminal can send the location SRS to the first node and the second node respectively. For example, the pseudocode for the first node to configure the second configuration information can be as shown in step 303 of the above embodiment. When the configuration information is the same as in the above embodiment, the pseudocode for the first node to configure the second configuration information in this embodiment is the same as in the above embodiment, and will not be repeated here.

[0201] Step 404: At the same time, the first node also needs to send the configured second configuration information to the LMF via the NRPPa protocol, and then the LMF sends it to the second node via the NRPPa protocol; or the first node can directly send the second configuration information to the second node via the Xn interface protocol.

[0202] For example, based on the second configuration information shown in Table 1, the second configuration information includes resource information such as time domain resources, frequency domain resources, and code domain resources occupied by the positioning SRS. According to the above configuration, the configuration information of the positioning SRS configured for the first node is as follows: in the 12th symbol of one time slot, the total bandwidth of the frequency domain positioning SRS is 4 resource blocks (RBs), the comb structure is comb2, and the cyclic offset index n... SRS The value is 1, and the bias value is 0.

[0203] In Table 1, when the comb structure is configured as CombTwo, the Comb Offset value of 0 indicates that the first node has selected the offset value that has been used when sending the positioning SRS to the second node by further sending the first indication information. This allows the second node to avoid the used offset value when configuring the configuration information of the sensing reference signal according to the first indication information, thereby preventing interference from neighboring cells or other users when the first node receives the sensing reference signal.

[0204] Step 405: The first node sends the first indication information, including the occupied frequency domain resources, to the LMF via the NRPPa protocol, and then the LMF sends it to the second node via the NRPPa protocol; or the first node can directly send the first indication information to the second node via the Xn interface protocol. In this embodiment of the invention, when the first indication information indicates the offset value in the occupied frequency domain resources when the first terminal sends the positioning SRS, the first indication information includes the relevant configuration and parameters of the frequency domain resources. The first indication information is similar to that in Table 2, and will not be described in detail here.

[0205] Step 406: The second node determines the transmission resource information of the sensing reference signal according to the first indication information, thereby reconfiguring the configuration information of the sensing reference signal, i.e., the first configuration information, and sends the first configuration information to the LMF through the NRPPa protocol, and then the LMF sends it to the first node through the NRPPa protocol; or the second node can directly send the first configuration information to the first node through the Xn interface protocol.

[0206] For example, the first configuration information configured by the second node according to the first instruction information can be shown in Table 4:

[0207] Table 4

[0208]

[0209] The relevant explanations of the information elements included in the IE in the first configuration information have been described in Table 1 and will not be repeated here. As shown in Table 4, the first configuration information includes the resource information occupied by transmitting the sensing reference signal. According to the above configuration of the sensing reference signal, the configuration information of the second node is as follows: in the 12th symbol of one time slot, the total bandwidth of the frequency domain positioning SRS is 8 RBs, the comb structure is comb2, and the cyclic shift label is n. Sensing_RS The value is 1, and the bias value is 1.

[0210] In Table 4, when the comb structure is configured as CombTwo, the Comb Offset value of 1 indicates that the second node configures a different offset information in the frequency domain resources than the already occupied code domain resources, based on the offset information in the frequency domain resources occupied when sending the positioning SRS, which is included in the first indication information. In other words, the unoccupied offset value is configured as 1.

[0211] Furthermore, since this embodiment uses the configuration information of the positioning reference signal to configure the configuration information of the sensing reference signal, based on this method, the first node cannot determine the purpose of the configuration information according to the content of the first information position in the original table 3. Therefore, it is necessary to add second indication information to the first configuration information that reuses the configuration information of the positioning reference signal to distinguish the purpose of the first configuration information.

[0212] As shown in Table 4, Usage, as the second indication information, describes whether the reference signal is used for positioning SRS reception configuration or sensing reference signal transmission configuration, i.e., indicating the purpose of the reference signal. Usage can be set to a value of [0,1]. When the value is 0, the second indication information indicates that the first configuration information is for receiving positioning reference signals; when the value is 1, the second indication information indicates that the first configuration information is for transmitting sensing reference signals. Currently, the Usage value in Table 4 is 1, thus indicating to the first node that the first configuration information is for receiving sensing reference signals.

[0213] Figure 10 This is a schematic diagram illustrating the first node of this invention receiving positioning reference signals and sensing reference signals based on different frequency domain resources; as shown. Figure 10 As shown, the first terminal among all terminals served by the first node occupies 4 out of the total bandwidth of the sensing reference signal (8 RBs) as the positioning SRS bandwidth, and occupies the 12th symbol in one time slot to transmit the positioning SRS. At the same time, the second node occupies the same code domain in the total bandwidth of the same frequency domain (8 RBs) to transmit the sensing reference signal. Since the offset values ​​occupied by the positioning SRS and the sensing reference signal are 0 and 1 respectively, the two signals occupy different frequency domain resources in the same time domain and code domain. That is, the sensing reference signal avoids the frequency domain resources occupied by the positioning SRS through the frequency division of the reference signal, reduces interference from neighboring cells or other users, and thus better achieves cooperative sensing.

[0214] In this embodiment, by exchanging information about occupied or unoccupied resources between the first node and the second node, the second node can avoid occupied resource information when configuring the configuration information of the sensing signal. Furthermore, by adding second indication information to the configuration information of the reused positioning reference signal to indicate the purpose of the reference signal, or by adding configuration information of the sensing signal that includes first information, the second node sends first configuration information to the first node. This allows the first node to receive the sensing reference signal according to the first configuration information. Thus, while receiving the positioning reference signal, the first node reduces interference from neighboring cells or other users, ensuring the reception of the sensing reference signal, and thereby achieving collaborative sensing with the second node.

[0215] Based on the above embodiments, this invention also provides a sensing signal configuration device, which is applied to a first node. Figure 11 Schematic diagram of the composition structure of the sensing signal configuration device provided in the embodiments of the present invention Figure 1 ;like Figure 11 As shown, the device includes: a first transmitting unit 51 and a first receiving unit 52, wherein,

[0216] The first sending unit 51 shown is used to send first indication information to the second node. The first indication information is used to indicate the resource information related to the positioning reference signal configured by the first node for all terminals it serves.

[0217] The first receiving unit 52 is used to receive first configuration information from the second node and receive a sensing reference signal based on the first configuration information.

[0218] In an optional embodiment of the present invention, the resource information includes occupied resource information and / or unoccupied resource information; and / or, the resource information includes at least one of the following: time domain resources, frequency domain resources, and code domain resources.

[0219] In an optional embodiment of the present invention, the first sending unit 51 is configured to send first indication information to the second node through a first network function; or, directly send the first indication information to the second node.

[0220] In an optional embodiment of the present invention, the first configuration information includes one or more of the following: the type of reference signal; bandwidth; transmission resource information of the reference signal; first information or second indication information; the first information is used to indicate that the first configuration information is configuration information for transmitting sensing reference signals; the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals or configuration information for transmitting sensing reference signals.

[0221] In an optional embodiment of the present invention, the transmission resource information of the reference signal includes at least one of the following: time domain resources, frequency domain resources, code domain resources; and / or, the type of the reference signal includes: periodic, non-continuous, or non-periodic.

[0222] In an optional embodiment of the present invention, the first receiving unit 52 is configured to receive first configuration information sent by the second node through a first network function; or, directly receive the first configuration information sent by the second node.

[0223] In an optional embodiment of the present invention, when the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; and / or,

[0224] When the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal.

[0225] In an optional embodiment of the present invention, the first receiving unit 52 is further configured to receive a sensing reference signal based on the first configuration information when the second indication information indicates that the first configuration information is configuration information for sending a sensing reference signal.

[0226] In an optional embodiment of the present invention, the first receiving unit 52 is further configured to receive a positioning reference signal based on the first configuration information when the second indication information indicates that the first configuration information is configuration information for receiving a positioning reference signal.

[0227] In an optional embodiment of the present invention, the first sending unit 51 is further configured to send second configuration information to the first terminal and the second node respectively before sending the first indication information to the second node, wherein the second configuration information is used by the first terminal to send positioning reference signals to the first node and the second node respectively.

[0228] In an optional embodiment of the present invention, the first receiving unit 52 is further configured to receive positioning capability information sent by the first terminal before the first sending unit 51 sends the first indication information to the second node.

[0229] In this embodiment of the invention, the first transmitting unit 51 and the first receiving unit 52 in the device can be implemented in practical applications through a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and a transceiver antenna.

[0230] This invention also provides a sensing signal configuration device, which is applied to a second node. Figure 12 Schematic diagram of the composition structure of the sensing signal configuration device provided in the embodiments of the present invention Figure 2 ;like Figure 12 As shown, the device includes: a second receiving unit 61 and a second transmitting unit 62; wherein,

[0231] The second receiving unit 61 is configured to receive first indication information from the first node, wherein the first indication information is configured to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves;

[0232] The second sending unit 62 is used to send first configuration information to the first node according to the first indication information, so that the first node can receive the sensing reference signal.

[0233] In an optional embodiment of the present invention, the resource information includes occupied resource information and / or unoccupied resource information; and / or, the resource information includes at least one of the following: time domain resources, frequency domain resources, and code domain resources.

[0234] In an optional embodiment of the present invention, the device further includes a first processing unit 63, configured to determine transmission resource information of the sensing reference signal based on the first indication information;

[0235] The device further includes a second sending unit 62, used to send first configuration information to the first node.

[0236] In an optional embodiment of the present invention, the first processing unit 63 is configured to, when the first indication information includes the occupied resource information, determine transmission resource information of the reference signal that is different from the occupied resource information; and / or,

[0237] The first processing unit 63 is configured to determine the transmission resource information of the reference signal from the unoccupied resource information when the first indication information includes the unoccupied resource information.

[0238] In an optional embodiment of the present invention, the second receiving unit 61 is configured to receive the first indication information sent by the first node through a first network function; or, directly receive the first indication information sent by the first node.

[0239] In an optional embodiment of the present invention, the first configuration information further includes one or more of the following: the type of reference signal; bandwidth; transmission resource information of the reference signal; first information or second indication information; the first information is used to indicate that the first configuration information is configuration information for transmitting sensing reference signals; the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals or configuration information for transmitting sensing reference signals.

[0240] In an optional embodiment of the present invention, the transmission resource information of the reference signal includes at least one of the following: time domain resources, frequency domain resources, code domain resources; and / or, the type of the reference signal includes: periodic, non-continuous, or non-periodic.

[0241] In an optional embodiment of the present invention, the second sending unit 62 is used to send first configuration information to the first node through a first network function; or, to send the first configuration information directly to the first node.

[0242] In an optional embodiment of the present invention, the second receiving unit 61 is further configured to receive second configuration information from the first node before receiving the first indication information from the first node, the second configuration information being used by the first terminal to send positioning reference signals to the first node and the second node respectively.

[0243] In an optional embodiment of the present invention, when the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for the second receiving unit 61 to receive positioning reference signals; and / or,

[0244] When the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is the configuration information for the second transmitting unit 62 to transmit the sensing reference signal.

[0245] In this embodiment of the invention, the first processing unit 63 in the device can be implemented by a central processing unit (CPU), digital signal processor (DSP), microcontroller unit (MCU), or field-programmable gate array (FPGA) in the terminal in practical applications; the second receiving unit 61 and the second transmitting unit 62 in the device can be implemented by a communication module (including: basic communication kit, operating system, communication module, standardized interface and protocol, etc.) and transceiver antenna in practical applications.

[0246] It should be noted that the above-described sensing signal configuration device is only illustrated by the division of the above-described program modules. In practical applications, the above processing can be assigned to different program modules as needed, that is, the internal structure of the device can be divided into different program modules to complete all or part of the processing described above. In addition, the sensing reference signal configuration device and the sensing reference signal configuration method embodiment provided in the above embodiments belong to the same concept, and their specific implementation process can be found in the method embodiment, which will not be repeated here.

[0247] This invention also provides a communication device. Figure 13 This is a schematic diagram of the hardware composition structure of the communication device provided in an embodiment of the present invention, such as... Figure 13 As shown, the communication device includes a memory 72, a processor 71, and a computer program stored in the memory 72 and executable on the processor 71.

[0248] Optionally, the communication device may specifically be a first node or a second node according to an embodiment of the present invention; when the processor 71 executes the program, it implements the steps of the sensing reference signal configuration method applied to the first node or the second node according to an embodiment of the present invention.

[0249] Optionally, the communication device further includes at least one communication component 74. The various components in the communication device can be coupled together via a bus system 73. It is understood that the bus system 73 is used to implement communication between these components. In addition to a data bus, the bus system 73 also includes a power bus, a control bus, and a status signal bus. However, for clarity, in... Figure 13 The general labeled all buses as Bus System 73.

[0250] It is understood that memory 72 can be volatile memory or non-volatile memory, or both. Non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), ferromagnetic random access memory (FRAM), flash memory, magnetic surface memory, optical disc, or compact disc read-only memory (CD-ROM); magnetic surface memory can be disk storage or magnetic tape storage. Volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of RAM are available, such as Static Random Access Memory (SRAM), Synchronous Static Random Access Memory (SSRAM), Dynamic Random Access Memory (DRAM), Synchronous Dynamic Random Access Memory (SDRAM), Double Data Rate Synchronous Dynamic Random Access Memory (DDRSDRAM), Enhanced Synchronous Dynamic Random Access Memory (ESDRAM), SyncLink Dynamic Random Access Memory (SLDRAM), and Direct Rambus Random Access Memory (DRRAM).The memory 72 described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0251] The methods disclosed in the above embodiments of the present invention can be applied to processor 71, or implemented by processor 71. Processor 71 may be an integrated circuit chip with signal processing capabilities. In the implementation process, each step of the above method can be completed by the integrated logic circuit of the hardware in processor 71 or by instructions in the form of software. The processor 71 may be a general-purpose processor, DSP, or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. Processor 71 can implement or execute the methods, steps, and logic block diagrams disclosed in the embodiments of the present invention. The general-purpose processor may be a microprocessor or any conventional processor, etc. The steps of the methods disclosed in the embodiments of the present invention can be directly manifested as being executed by a hardware decoding processor, or being executed by a combination of hardware and software modules in the decoding processor. The software modules may be located in a storage medium, which is located in memory 72. Processor 71 reads the information in memory 72 and, in conjunction with its hardware, completes the steps of the aforementioned method.

[0252] In an exemplary embodiment, the communication device may be implemented by one or more application-specific integrated circuits (ASICs), DSPs, programmable logic devices (PLDs), complex programmable logic devices (CPLDs), FPGAs, general-purpose processors, controllers, MCUs, microprocessors, or other electronic components to perform the aforementioned method.

[0253] This invention also provides a computer-readable storage medium having a computer program stored thereon.

[0254] Optionally, the computer-readable storage medium can be applied to the sensing reference signal configuration apparatus of the present invention; then, when the program is executed by the processor, it implements the steps of the sensing reference signal configuration method of the present invention applied to the first node or the second node.

[0255] The methods disclosed in the several method embodiments provided in this application can be arbitrarily combined without conflict to obtain new method embodiments.

[0256] The features disclosed in the several product embodiments provided in this application can be arbitrarily combined without conflict to obtain new product embodiments.

[0257] The features disclosed in the several method or device embodiments provided in this application can be arbitrarily combined without conflict to obtain new method or device embodiments.

[0258] In the several embodiments provided in this application, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are merely illustrative. For example, the division of units is only a logical functional division, and in actual implementation, there may be other division methods, such as: multiple units or components can be combined, or integrated into another system, or some features can be ignored or not executed. In addition, the coupling, direct coupling, or communication connection between the various components shown or discussed can be through some interfaces, and the indirect coupling or communication connection between devices or units can be electrical, mechanical, or other forms.

[0259] The units described above as separate components may or may not be physically separate. The components shown as units may or may not be physical units, that is, they may be located in one place or distributed across multiple network units. Some or all of the units may be selected to achieve the purpose of this embodiment according to actual needs.

[0260] In addition, in the various embodiments of the present invention, each functional unit can be integrated into one processing unit, or each unit can be a separate unit, or two or more units can be integrated into one unit; the integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0261] Those skilled in the art will understand that all or part of the steps of the above method embodiments can be implemented by hardware related to program instructions. The aforementioned program can be stored in a computer-readable storage medium. When the program is executed, it performs the steps of the above method embodiments. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0262] Alternatively, if the integrated units of this invention are implemented as software functional modules and sold or used as independent products, they can also be stored in a computer-readable storage medium. Based on this understanding, the technical solutions of the embodiments of this invention, or the parts that contribute to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the methods described in the various embodiments of this invention. The aforementioned storage medium includes various media capable of storing program code, such as mobile storage devices, ROM, RAM, magnetic disks, or optical disks.

[0263] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should be included within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A method for configuring a sensing reference signal, characterized in that, The method is applied to the first node, and the method includes: Send a first indication message to the second node, the first indication message being used to indicate the resource information related to the positioning reference signal configured by the first node for all terminals it serves; Receive first configuration information from the second node, and receive a sensing reference signal based on the first configuration information.

2. The method according to claim 1, characterized in that, The resource information includes information on occupied resources and / or unoccupied resources; and / or, The resource information includes at least one of the following: time domain resources, frequency domain resources, and code domain resources.

3. The method according to claim 1, characterized in that, Sending the first indication information to the second node includes: The first node sends a first instruction message to the second node through a first network function; or... The first node directly sends the first instruction information to the second node.

4. The method according to claim 1, characterized in that, The first configuration information includes one or more of the following: Type of reference signal; bandwidth; Reference signal transmission resource information; First information or second indication information; the first information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal; The second indication information is used to indicate whether the first configuration information is configuration information for receiving positioning reference signals or configuration information for sending sensing reference signals.

5. The method according to claim 4, characterized in that, The transmission resource information of the reference signal includes at least one of the following: time domain resources, frequency domain resources, and code domain resources; And / or, The types of reference signals include: periodic, non-continuous, or aperiodic.

6. The method according to claim 1, characterized in that, The receipt of the first configuration information from the second node includes: The first node receives the first configuration information sent by the second node through a first network function; or... The first node directly receives the first configuration information sent by the second node.

7. The method according to claim 4, characterized in that, When the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; And / or, When the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal.

8. The method according to claim 7, characterized in that, The step of receiving the sensing reference signal based on the first configuration information includes: When the second indication information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal, the first node receives the sensing reference signal based on the first configuration information.

9. The method according to claim 8, characterized in that, The method further includes: When the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals, the first node receives positioning reference signals based on the first configuration information.

10. The method according to claim 1, characterized in that, Before sending the first indication information to the second node, the method further includes: The first node sends second configuration information to the first terminal and the second node respectively. The second configuration information is used by the first terminal to send positioning reference signals to the first node and the second node respectively.

11. The method according to claim 1 or 10, characterized in that, Before sending the first indication information to the second node, the method further includes: Receive positioning capability information sent by the first terminal.

12. A method for configuring a sensing reference signal, characterized in that, The method is applied to the second node, and the method includes: Receive first indication information from the first node, the first indication information being used to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves; First configuration information is sent to the first node according to the first instruction information, so that the first node can receive the sensing reference signal.

13. The method according to claim 12, characterized in that, The resource information includes information on occupied resources and / or unoccupied resources; and / or, The resource information includes at least one of the following: time domain resources, frequency domain resources, and code domain resources.

14. The method according to claim 13, characterized in that, Sending the first configuration information to the first node according to the first indication information includes: The second node determines the transmission resource information of the sensing reference signal based on the first indication information and sends the first configuration information to the first node.

15. The method according to claim 14, characterized in that, The second node determines the transmission resource information of the sensing reference signal based on the first indication information, including: When the first indication information includes the occupied resource information, determine the transmission resource information of the reference signal that is different from the occupied resource information; and / or, When the first indication information includes the unoccupied resource information, the transmission resource information of the reference signal is determined from the unoccupied resource information.

16. The method according to claim 12, characterized in that, The receipt of the first indication information from the first node includes: The second node receives the first indication information sent by the first node through the first network function; or, The second node directly receives the first instruction information sent by the first node.

17. The method according to claim 12, characterized in that, The first configuration information also includes one or more of the following: Type of reference signal; bandwidth; Reference signal transmission resource information; First information or second indication information; the first information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal; The second indication information is used to indicate whether the first configuration information is configuration information for receiving positioning reference signals or configuration information for sending sensing reference signals.

18. The method according to claim 17, characterized in that, The transmission resource information of the reference signal includes at least one of the following: time domain resources, frequency domain resources, and code domain resources; And / or, The types of reference signals include: periodic, non-continuous, or aperiodic.

19. The method according to claim 12, characterized in that, Sending the first configuration information to the first node according to the first indication information includes: The second node sends the first configuration information to the first node through the first network function; or, The second node sends the first configuration information directly to the first node.

20. The method according to claim 12, characterized in that, Before receiving the first indication information from the first node, the method further includes: The first terminal receives second configuration information from the first node, which is used to send positioning reference signals to the first node and the second node respectively.

21. The method according to claim 17, characterized in that, When the second indication information is a first identifier set to a first preset value, the second indication information is used to indicate that the first configuration information is configuration information for receiving positioning reference signals; And / or, When the second indication information is a first identifier set to a second preset value, the second indication information is used to indicate that the first configuration information is configuration information for sending a sensing reference signal.

22. A sensing reference signal configuration device, characterized in that, The device is applied to a first node, and the device includes: a first transmitting unit and a first receiving unit; wherein... The first sending unit is configured to send first indication information to the second node, wherein the first indication information is configured to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves; The first receiving unit is configured to receive first configuration information from the second node and receive a sensing reference signal based on the first configuration information.

23. A sensing reference signal configuration device, characterized in that, The device is applied to a second node, and the device includes: a second receiving unit and a second transmitting unit; wherein... The second receiving unit is configured to receive first indication information from the first node, wherein the first indication information is configured to indicate resource information related to the positioning reference signal configured by the first node for all terminals it serves; The second sending unit is configured to send first configuration information to the first node according to the first indication information, so that the first node can receive the sensing reference signal.

24. A communication device, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, characterized in that, When the processor executes the program, it implements the steps of the method according to any one of claims 1 to 11, or; When the processor executes the program, it implements the steps of the method according to any one of claims 12 to 21.

25. A computer-readable storage medium having a computer program stored thereon, characterized in that, When executed by a processor, the program performs the steps of the method according to any one of claims 1 to 11, or; When executed by a processor, the program performs the steps of the method according to any one of claims 12 to 21.

26. A computer program product, comprising a computer program, characterized in that, When executed by a processor, the computer program implements the method according to any one of claims 1 to 11, or; The computer program, when executed by a processor, implements the method according to any one of claims 12 to 21.

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