Wireless communication method and communication device

Abstract

Provided are a wireless communication method and a communication device. The method comprises: acquiring a first mapping order associated with sensing reference signals; and receiving the sensing reference signals on the basis of the first mapping order, wherein the first mapping order is used for indicating a mapping order of a signal sequence of the sensing reference signals on transmission resources. In the embodiments of the present application, sensing reference signals can be associated with a mapping order (also referred to as "a first mapping order"), and the mapping order is used for indicating a mapping order of a signal sequence of the sensing reference signals on transmission resources. The mapping order cannot be acquired by attackers, and compared with a conventional sensing reference signal mapping process, all sensing reference signals are mapped to transmission resources on the basis of a generation order of the sensing reference signals, thereby increasing the difficulty for attackers to attack the sensing reference signals, and improving the security of the sensing reference signals.

Description

Wireless communication method and communication device Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a wireless communication method and communication device. Background Art

[0002] In some scenarios, perception can track and potentially identify any target in the environment. For example, in healthcare scenarios, perception can detect data such as human breathing and heartbeat. However, the signal structure of the perception reference signal used by perception is public. In this case, attackers can use this public signal structure to perform blind detection on the perception reference signal over transmission resources to obtain user privacy data, resulting in low security for perception.

[0003] Summary of the Invention

[0004] The present application provides a wireless communication method and a communication device. The following introduces various aspects involved in the present application.

[0005] In a first aspect, a wireless communication method performed in a terminal device is provided, comprising: obtaining a first mapping order associated with a perception reference signal; and receiving the perception reference signal based on the first mapping order, wherein the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on the transmission resource.

[0006] According to a second aspect, a wireless communication method performed in a network device is provided, comprising: generating a first mapping order associated with a perception reference signal; and sending the perception reference signal to a terminal device via a transmission resource, wherein the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on the transmission resource.

[0007] According to a third aspect, a wireless communication method performed in a terminal device is provided, comprising: receiving first information for determining a first mapping order associated with a perception reference signal, the first mapping order being used to indicate a mapping order of a signal sequence of the perception reference signal on a transmission resource; and receiving or sending the perception reference signal based on the first mapping order.

[0008] In a fourth aspect, a wireless communication method performed in an access network device is provided, comprising: receiving first information, the first information being used to determine a first mapping order associated with a perception reference signal to be transmitted, the first mapping order being used to indicate a mapping order of a signal sequence of the perception reference signal on a transmission resource; and receiving or sending the perception reference signal based on the first mapping order.

[0009] In a fifth aspect, a terminal device is provided, including: a processing unit for obtaining a first mapping order associated with a perception reference signal; a receiving unit for receiving the perception reference signal based on the first mapping order, wherein the first mapping order is used to indicate the mapping order of the signal sequence of the perception reference signal on the transmission resource.

[0010] In a sixth aspect, a network device is provided, including: a processing unit for generating a first mapping order associated with a perception reference signal; a sending unit for sending the perception reference signal to a terminal device via a transmission resource, wherein the first mapping order is used to indicate the mapping order of the signal sequence of the perception reference signal on the transmission resource.

[0011] In the seventh aspect, a terminal device is provided, including: a receiving unit for receiving first information, the first information being used to determine a first mapping order associated with a perception reference signal, the first mapping order being used to indicate a mapping order of a signal sequence of the perception reference signal on a transmission resource; and a communication unit for receiving or sending the perception reference signal based on the first mapping order.

[0012] In an eighth aspect, an access network device is provided, including: a receiving unit for receiving first information, the first information being used to determine a first mapping order associated with a perception reference signal to be transmitted, the first mapping order being used to indicate a mapping order of a signal sequence of the perception reference signal on a transmission resource; and a communication unit for receiving or sending the perception reference signal based on the first mapping order.

[0013] In this embodiment of the present application, a perception reference signal may be associated with a mapping order (also referred to as a "first mapping order"), which indicates the order in which the perception reference signal sequence is mapped onto transmission resources. This mapping order is inaccessible to attackers. Compared to the traditional perception reference signal mapping process, all perception reference signals are mapped to transmission resources in the order in which they were generated. This helps to make it more difficult for attackers to attack the perception reference signal, thereby improving the security of the perception reference signal. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] FIG1 is a wireless communication system 100 used in an embodiment of the present application.

[0015] FIG2 is a schematic diagram of a perception scenario applicable to an embodiment of the present application.

[0016] FIG3 is a schematic diagram of a wireless communication method according to an embodiment of the present application.

[0017] FIG4 is a schematic diagram of a wireless communication method according to an embodiment of the present application.

[0018] FIG5 is a schematic diagram of resource mapping according to an embodiment of the present application.

[0019] 6 to 9 are schematic diagrams of a method for transmitting first information in an embodiment of the present application.

[0020] FIG10 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0021] FIG11 is a schematic diagram of a network device according to an embodiment of the present application.

[0022] FIG12 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0023] FIG13 is a schematic diagram of a network device according to an embodiment of the present application.

[0024] FIG14 is a schematic diagram of a terminal device according to an embodiment of the present application.

[0025] FIG15 is a schematic diagram of a sensing function device according to an embodiment of the present application.

[0026] FIG16 is a schematic diagram of a sensing function device according to an embodiment of the present application.

[0027] FIG17 is a schematic structural diagram of a communication device according to an embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solution in this application will be described below with reference to the accompanying drawings.

[0029] Figure 1 illustrates a wireless communication system 100 used in an embodiment of the present application. The wireless communication system 100 may include a network device 110 and a terminal device 120. The network device 110 may be a device that communicates with the terminal device 120. The network device 110 may provide communication coverage for a specific geographic area and may communicate with the terminal device 120 within the coverage area.

[0030] FIG1 exemplarily shows a network device and two terminals. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0031] Optionally, the wireless communication system 100 may further include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiment of the present application.

[0032] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth generation (5G) system or new radio (NR), long term evolution (LTE) system, LTE frequency division duplex (FDD) system, LTE time division duplex (TDD), etc. The technical solutions provided in this application can also be applied to future communication systems, such as the sixth generation mobile communication system, satellite communication system, etc.

[0033] The terminal device in the embodiments of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiments of the present application may refer to a device that provides voice and / or data connectivity to a user and can be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiments of the present application can be a mobile phone, a tablet computer, a laptop computer, a PDA, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in a smart grid, a wireless terminal in transportation safety, a wireless terminal in a smart city, a wireless terminal in a smart home, etc. Optionally, the UE can be used to act as a base station. For example, the UE can act as a scheduling entity that provides sidelink signals between UEs in V2X or D2D, etc. For example, a cellular phone and a car communicate with each other using sidelink signals. The cellular phone and smart home devices communicate without relaying the communication signal through the base station.

[0034] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. A base station can broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point (TP), master station MeNB, secondary station SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, a micro base station, a relay node, a donor node or the like, or a combination thereof. A base station can also refer to a communication module, a modem or a chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center and a device that performs base station functions in device-to-device D2D, vehicle-to-everything (V2X), and machine-to-machine (M2M) communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network equipment.

[0035] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0036] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device may include a CU and a DU. The gNB may also include an AAU.

[0037] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.

[0038] It should be understood that all or part of the functions of the communication device in this application can also be implemented through software functions running on hardware, or through virtualization functions instantiated on a platform (such as a cloud platform).

[0039] Perception Scene

[0040] Figure 2 is a schematic diagram of a sensing scenario applicable to embodiments of the present application. As shown in Figure 2 , a network device transmits a sensing reference signal. In response, a terminal device receives and measures the echo signal reflected from the sensing target, obtaining a measurement result. The terminal device can then transmit the measurement result to the access network device.

[0041] In some implementations, the access network device may use a perception reference signal modulated by quadrature phase shift keying (QPSK).

[0042] In some implementations, the sensing reference signal may be one or more of the following: a demodulation reference signal (DM-RS), a channel state information reference signal (CSI-RS), and a positioning reference signal (PRS).

[0043] PRS sequence generation and configuration parameters

[0044] Because PRS has strong noise immunity and good auto- and cross-correlation characteristics, it is very suitable for perception functions. The following describes PRS sequence generation, resource mapping, and parameter configuration.

[0045] The reference signal sequence r(m) of PRS can be based on the formula: 1)) is determined, wherein the pseudo-random sequence c(i) can be generated based on a pseudo-random sequence generator, which is initialized to: in, Indicates the number of time slots, downlink PRS sequence The downlink PRS sequence ID is determined based on the higher-layer parameter "dl-PRS-SequenceID" and the parameter "l", where the parameter "l" represents the orthogonal frequency division multiplexing (OFDM) symbol index to which the sequence is mapped within the time slot.

[0046] The PRS configuration parameters are structured in three layers, which can be represented from largest to smallest as follows: positioning frequency layer, PRS resource set, and PRS resource. That is, a positioning frequency layer can contain multiple PRS resource sets, and a PRS resource set can contain multiple PRS resources.

[0047] Among the PRS configuration parameters, some are layer-level, meaning they apply to all resources within that layer. Some are PRS resource set-level, meaning they apply to all PRS resources within that PRS resource set. Some are PRS resource-level, meaning they apply to that PRS resource.

[0048] In some scenarios, perception can track and potentially identify any target in the environment. For example, in healthcare scenarios, perception can detect data such as human breathing and heartbeat. However, the signal structure of the perception reference signal used by perception is public. In this case, attackers can perform blind detection on the perception reference signal using time-frequency resources based on the public signal structure to obtain user privacy data, resulting in low security for perception.

[0049] Taking the perception reference signal as PRS as an example, assuming that after the network device generates the PRS sequence, it maps the PRS sequence to the time-frequency resources to form a PRS resource. Moreover, the formed PRS resource is repeated on the time-frequency resources according to certain rules to form a PRS resource set and then sent to the terminal device. In this case, although the attacker cannot obtain the configuration parameters of the PRS, he can perform blind detection on the PRS based on the signal structure of the public perception reference signal. The search space for obtaining the PRS is analyzed to be approximately 9.537E+27≈2 93 , resulting in the security of the perception reference signal being far lower than the security of the 128-bit key, where the security of the 128-bit key is the basic security requirement in current communication processes.

[0050] Therefore, to address the above-mentioned issues, embodiments of the present application provide a wireless communication method in which a sensing reference signal can be associated with a mapping order (hereinafter referred to as a "first mapping order"), which indicates the order in which the signal sequences of the sensing reference signals are mapped onto transmission resources. This mapping order is inaccessible to attackers. Compared to traditional sensing reference signal mapping processes, all sensing reference signals are mapped to transmission resources in the order in which they were generated. This helps to increase the difficulty for attackers to attack the sensing reference signals and improves the security of the sensing reference signals.

[0051] The following describes a wireless communication method according to an embodiment of the present application in conjunction with FIG3 . The method shown in FIG3 includes steps S310 to S320 .

[0052] In step S310, a first mapping order associated with a perceptual reference signal is obtained.

[0053] In some implementations, the first mapping order is used to indicate the mapping order of the signal sequence of the perception reference signal on the transmission resource. For example, the transmission resource may be a time domain symbol. Accordingly, the first mapping order may be used to indicate the mapping order of the signal sequence on the time domain symbol. In this case, the first mapping order is also referred to as the resource symbol mapping order. Of course, in the embodiments of the present application, the transmission resource is not limited. For example, the transmission resource may be a resource element (RE). For another example, the transmission resource may be a resource block (RB).

[0054] In some implementations, the perception reference signal is associated with the first mapping order, which can be understood as an association relationship between the perception reference signal and the first mapping order. In the embodiments of the present application, the association relationship is not limited. For example, the association relationship may indicate a one-to-one correspondence between the perception reference signal and the mapping order. In another example, the association relationship may indicate a many-to-one correspondence between the perception reference signal and the mapping order.

[0055] In some implementations, the device that performs the above step S310 may be a terminal device and / or a network device.

[0056] In step S320, the network device sends the perception reference signal to the terminal device based on the first mapping order, and accordingly, the terminal device receives the perception reference signal based on the first mapping order.

[0057] The following takes the perceptual reference signal as a PRS as an example to describe the generation method of the first mapping order in the embodiment of the present application based on Figures 4 and 5. The method shown in Figure 4 includes steps S410 to S430.

[0058] In step S410 , a signal sequence r(m) of a perceptual reference signal is generated.

[0059] In some implementations, a pseudo-random sequence is generated based on a 31-order Gold sequence, and then a modulation sequence is generated by taking 2 bits at a time, such as using [c(0), c(1)] to generate r(0), and using [c(2), c(3)] to generate r(1), until the modulation sequence r(m) corresponding to the required number of PRS symbols is generated. The initial value of the pseudo-random sequence c(i) is Indicates the number of time slots, Indicates the number of consecutive OFDM symbols in each time slot, downlink PRS sequence Configured by the high-level parameter "dl-PRS-SequenceID", l is the OFDM symbol to which the modulation sequence is mapped, that is, the horizontal coordinate of the time-frequency grid point.

[0060] As shown in Figure 5 , assume a PRS resource set with two PRS resources, with a PRS resource set period of 10 slots and an offset of 3 slots (starting from slot 0). The first PRS resource offset is 1 slot (starting from slot 0), and the second PRS resource offset is 4 slots (starting from slot 0). The PRS resource repetition factor is 2, meaning each PRS resource is repeated twice across all PRS resource set instances, and the PRS resource time interval is 2, meaning that there is a 2-slot interval between PRS resources.

[0061] For PRS resource #1, the number of allocated OFDM symbols is 6, starting from OFDM symbol 0, the starting OFDM symbol of PRS resource allocation is 3, and the comb size of PRS is 4. Starting from OFDM symbol 0, the RE offset in the first OFDM symbol is 2. The relative RE offset of the PRS OFDM symbol can be determined based on the PRS comb size of 4. In other words, for a given configuration, the number of OFDM symbols within the PRS resource allocation range is The relative RE offsets (k′) in the PRS OFDM symbol are [0 2 1 3 0 2], i.e., the double-headed arrows in Figure 5 show these relative offsets. Among them, the effective RE offset in the PRS OFDM symbol is

[0062] In step S420, for each PRS resource configuration, the generated modulation sequence (r(0), r(1), ..., r(M)) is reordered according to the mapping order parameter to become the modulation sequence: (r′(0), r′(1), ..., r′(M)).

[0063] Note: The sorting mode can be directly indicated by the Dl-PRS-ResourceSymbolOrder parameter. In this case, the range of this parameter depends on the number of complex-valued modulation symbols M (M and The value of k and l is M!.

[0064] In step S430, r′(m) is multiplied by the scaling factor β PRS Then, map it to resource element (k, l) according to the following formula: p,μ . m=0,1,…

[0065] Continuing with Figure 5, the reordered modulation sequences (r′(0), r′(1), …, r′(M)) are sequentially mapped to the first subcarrier and the second subcarrier of the first symbol of the first PRS resource, until all subcarriers of the first PRS symbol are mapped. Then, all subcarriers of the second symbol are mapped, and so on, until the entire PRS resource is mapped.

[0066] It should be noted that the remaining steps in the embodiment of the present application, such as inverse fast Fourier transform (IFFT), cyclic prefix (CP) extension, antenna port signal transmission and other processes are the same as the existing standards. For the sake of brevity, they will not be repeated below.

[0067] In some implementations, the first mapping order can be determined based on a chaotic map, or in other words, the first mapping order is generated based on a chaotic map, which helps to increase the complexity of the first mapping order and thus improve the security of the perceptual reference signal. Of course, in the embodiments of the present application, the first mapping order can also be generated based on other methods.

[0068] In the embodiments of the present application, the chaotic map is not limited. For example, the chaotic map may include one or more of the following: Logistic map; piecewise linear chaotic map (PWLCM); Singer map; Gaussian map; Bernoulli map; Chebyshev map; Circle map; Cubic map; and ICMIC map.

[0069] Assume that the chaotic map is a Logistic map and use a Chaotic sequence to generate a random mapping order. After generating a complex-valued modulation sequence (r(0), r(1), …, r(M)), the binary sequence generated by the chaotic sequence is used to randomly disrupt the mapping order. In other words, the discrete form x is obtained by the Logistic map method. n-1 =μx n (1-x n ), n=1, 2, 3 produces a series of discrete values, where 3.56994≤μ≤4, 0 <x n <1. Then perform binary conversion on the generated discrete value, i.e.

[0070] Assuming the number of subcarriers is M, from the chaotic sequence A n Take every log2M binary sequence to form a number, and finally form a sequence V of length M n , which is called the mapping order factor sequence. Since the chaotic map has good ergodicity, it can traverse every value from 0 to M-1, and then R n =(r(0),r(1),…,r(M)) are randomly shuffled. The shuffled sequence R′ n Expressed as: R′ n =R n′ V n′ =n-1.

[0071] It should be noted that the above description uses the transmission of the perception reference signal via the downlink as an example. The solution of the embodiment of the present application can also be applied to the scenario where the perception reference signal is transmitted via the uplink. Of course, the solution of the embodiment of the present application can also be applied to the scenario where the perception reference signal is transmitted via the sidelink.

[0072] As described above, a first mapping order is introduced to improve the security of the perception reference signal. Accordingly, to improve the success rate of perception reference signal transmission, both the receiving end and the transmitting end of the perception signal transmission need to know the first mapping relationship. Therefore, in the embodiments of the present application, first information for determining the first mapping order is introduced for transmission between the receiving end and the transmitting end.

[0073] In some implementations, the first information may directly carry information indicating the first mapping order, for example, the first information may carry an index of the first mapping order. In other implementations, if the first mapping order is determined based on a chaotic map, the first information includes parameters and initial values ​​of the chaotic map, where the parameters may be, for example, μ as described above, and the initial value may be, for example, x1 as described above.

[0074] The following describes the transmission method of the first information in the embodiment of the present application by taking the scenario of communication between the network device and the terminal device as an example in conjunction with Figure 6. As shown in Figure 6, in step S610, the network device sends the first information to the terminal device.

[0075] It should be noted that the network device transmitting the first information may be the network device transmitting the perception reference signal described above. For example, the network device may be an access network device. Of course, in the embodiments of the present application, the network device transmitting the first information may not be the network device transmitting the perception reference signal described above. For example, the network device may be a core network device. The following describes a transmission scheme for the first information, taking the network device being an access network device or a core network device as an example, in conjunction with Examples 1 and 2, respectively.

[0076] Example 1: The first information may be sent by the core network device to the terminal device.

[0077] In the embodiments of the present application, the core network device is not limited. In some implementations, the core network device may be a core network device that can obtain the first information. For example, the core network device may be an AMF, which will be described below in conjunction with Figure 8. In other implementations, the core network device may be a core network device that stores the first information. For example, the core network device may be a sensing function (SF), which will be described below in conjunction with Figure 7.

[0078] In some implementations, the first information may be carried in perception assistance data. For example, the perception assistance data may include configuration information of a perception reference signal. Accordingly, the first information may be carried in the configuration information of the perception reference signal. For another example, the configuration information of the perception reference signal may include time domain resource information and frequency domain resource information. Accordingly, the first information may be carried in the frequency domain resource information of the perception reference signal.

[0079] Taking the perception reference signal as PRS as an example, the perception assistance data (also known as "NR-DL-PRS-AssistanceData") includes PRS configuration information (NR-DL-PRS-Info), and accordingly, the PRS configuration information (nr-DL-PRS-Info) includes time-frequency resource information and frequency domain resource information, wherein the frequency domain resource information may include first information, i.e., a first mapping order (also known as "Dl-PRS-ResourceSymbolOrder").

[0080] Of course, in the embodiment of the present application, the first information may also be carried in a message sent by the core network device to the terminal device in the LPP protocol. For example, if the LMF and SF are co-located, the LMF can obtain the first information, or in other words, the SF stores the first information. Then, the co-located LMF and SF can serve as core network devices and send the first information to the terminal device through the LPP protocol.

[0081] In some implementations, the first information may be sent based on a request from the terminal device, that is, before step S410, the above method further includes: the terminal device sends a first request to the core network device, and the first request is used to request the mapping order of the perception reference signal, that is, the first mapping order. Of course, in an embodiment of the present application, the first information may also be actively triggered by the core network device. For example, if the core network device determines that the first information has not yet been sent to the terminal device, the core network device may send the first information to the terminal device. For another example, if the core network device determines that the mapping order of the perception reference signal associated with the terminal device needs to be updated, the core network device may send the first information to the terminal device to indicate the updated mapping order of the perception reference signal, that is, the first mapping order.

[0082] In some implementations, the above-mentioned core network device may be an SF. Of course, in an embodiment of the present application, the core network device may also be other core network devices that obtain or store the first information.

[0083] In some implementations, the second request may also be carried in a message sent by the terminal device to the core network device in the LTE Positioning Protocol (LPP). For example, if the LMF and SF are co-located, the LMF can obtain the first information, or the SF stores the first information. In this case, the co-located LMF and SF can serve as core network devices. In this case, the terminal device can send the first request to the core network device via the LPP protocol.

[0084] The following takes the perception reference signal as a PRS as an example to describe the method for transmitting the first information in an embodiment of the present application in conjunction with Figure 7. The method shown in Figure 5 includes steps S710 to S720.

[0085] In step S710, the terminal device sends a first request to the SF, where the first request is used to request perception assistance data of the PRS, or in other words, the first request is used to request configuration data of the PRS.

[0086] In step S720, in response to the first request, the SF sends perception assistance data (NR-DL-PRS-AssistanceData) to the terminal device, where the NR-DL-PRS-AssistanceData includes PRS configuration information (NR-DL-PRS-Info), and accordingly, the PRS configuration information (nr-DL-PRS-Info) includes time-frequency resource information and frequency domain resource information, where the frequency domain resource information includes the first mapping order Dl-PRS-ResourceSymbolOrder.

[0087] Embodiment 2: The first information may be sent by the access network device.

[0088] In some implementations, the first information is transmitted via a broadcast message, that is, the access network device may send the first information to the terminal device in a broadcast manner.

[0089] In some implementations, the first information may be carried in a perception assistance data broadcast message. For the perception assistance data, refer to the introduction of embodiment 1.

[0090] In the embodiment of the present application, there is no limitation on the manner in which the access network device obtains the first information. For example, the core network device may send the first information to the access network device.

[0091] The core network device is not limited in the embodiments of the present application. In some implementations, the core network device may be a core network device that can obtain the first information. For example, the core network device may be an AMF, which will be described below in conjunction with Figure 8. In other implementations, the core network device may be a core network device that stores the first information. For example, the core network device may be an SF, which will be described below in conjunction with Figure 9.

[0092] In some implementations, the sending of the first information may be triggered based on a request from a core network device. That is, before step S410, the method further includes: the core network device sending a second request to the access network device, the second request being used to request the sending of the first mapping order of the perception reference signal to the terminal device, i.e., the second request being used to request the sending of the first information to the terminal device.

[0093] In some implementations, the core network device may be an SF. For example, the SF may send the second request to the access network device through the AMF. Of course, the core network device may be an AMF. Accordingly, after receiving the second request sent by the SF, the AMF forwards the second request to the access network device.

[0094] In some implementations, the second request sent by the SF to the AMF may carry the identifier of the access network device providing services to the terminal device, so that the AMF can determine the access network device based on the identifier of the access network device. The identifier of the access network device may be the ID of the access network device or the IP address of the access network device, which is not limited in this embodiment of the present application.

[0095] In some implementations, the second request carries the identifier of the SF and / or the first mapping order, wherein the identifier of the SF may be a routing identifier of the SF, for example, the routing identifier of the SF may be an IP address of the SF. Of course, in the embodiment of the present application, the identifier of the SF may be an ID of the SF.

[0096] In some implementations, the first mapping order may be an encrypted first mapping order, which helps to improve the security of transmitting the first mapping order.

[0097] In some implementations, the above method also includes: the access network device sends a response message to the core network device for the second request, and the response message is used to indicate that the first mapping order has been sent, or the response message is used to indicate that the first mapping order has been broadcast to the terminal device.

[0098] In some implementations, the core network device may be an SF. For example, the access network device may send a response message to the SF via the AMF. Of course, the core network device may be an AMF. Accordingly, after receiving the response message sent by the access network device, the AMF may forward the response message to the SF.

[0099] In some implementations, the response message sent by the access network device to the AMF may carry the identifier of the SF so that the AMF can determine the SF based on the identifier of the SF.

[0100] The following describes a method for transmitting first information according to an embodiment of the present application in conjunction with Figure 8. Referring to Figure 6 , the method includes steps S810 to S850.

[0101] In step S810, the SF sends a second request to the AMF to request that a perception assistance data message be sent to the terminal device. The service operation corresponding to the request includes the perception assistance data and the identifier of the access network device, wherein the perception assistance data may be encrypted perception assistance data.

[0102] In some implementations, the second request carries an identifier of the access network device and perception assistance data, wherein the perception assistance data can be referred to the relevant introduction in Example 1.

[0103] In step S820, the AMF sends an N2 transmission message to the access network device, which carries the second request and the routing identifier of the SF.

[0104] In step S830 , in response to receiving the N2 transmission message, the access network device broadcasts the perception assistance data.

[0105] In step S840, the access network device sends a response message to the AMF, indicating that the perception assistance data has been broadcast to the terminal device. In some implementations, the response message carries the SF routing identifier.

[0106] In step S850, the AMF forwards the response message to the SF.

[0107] In some other implementations, the first information may be sent based on a request from the access network device, that is, before step S410, the above method further includes: the access network device sends a third request to the core network device, and the third request is used to request the mapping order of the perception reference signal, that is, the first mapping order. Of course, in an embodiment of the present application, the first information may also be actively triggered by the core network device. For example, if the core network device determines that the first information has not been sent to the access network device, the core network device may send the first information to the access network device. For another example, if the core network device determines that the mapping order of the perception reference signal associated with the access network device needs to be updated, the core network device may send the first information to the access network device to indicate the updated mapping order of the perception reference signal, that is, the first mapping order.

[0108] In some implementations, the above-mentioned core network device may be an SF. Of course, in an embodiment of the present application, the core network device may also be other core network devices that obtain or store the first information.

[0109] In some implementations, the third request may also be carried in a message sent by the access network device to the core network device in the LPP protocol. For example, if the LMF and SF are co-located, the LMF can obtain the first information, or the SF stores the first information. In this case, the co-located LMF and SF can serve as core network devices. In this case, the access network device can send the third request to the core network device via the LPP protocol.

[0110] The following describes a method for transmitting first information according to an embodiment of the present application in conjunction with Figure 9. As shown in Figure 9, the method includes steps S910 to S920.

[0111] In step S910, the access network device sends a third request to the SF, where the third request is used to request a mapping order of the perception reference signals.

[0112] In step S920, in response to the third request, the SF sends perception assistance data to the access network device, where the perception assistance data includes the first mapping order.

[0113] It should be noted that, in the solution described above in conjunction with FIG9 , after obtaining the first information (e.g., the first mapping order), the access network device may forward the first information to the terminal device, for example, by broadcasting the first information to the terminal device. Of course, in the embodiment of the present application, after obtaining the first mapping order, the access network device may send a perception reference signal based on the first mapping order.

[0114] The method embodiment of the present application is described in detail above in conjunction with Figures 1 to 9 . The device embodiment of the present application is described in detail below in conjunction with Figures 10 to 17 . It should be understood that the description of the method embodiment corresponds to the description of the device embodiment. Therefore, for parts not described in detail, reference can be made to the above method embodiment.

[0115] FIG10 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device 1000 shown in FIG10 includes: a processing unit 1010 and a sending unit 1020 .

[0116] The processing unit 1010 is configured to generate a perception reference signal;

[0117] The sending unit 1020 is configured to send the perception reference signal to a network device through a transmission resource, wherein the perception reference signal is associated with a first mapping order, and the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on the transmission resource.

[0118] In some implementations, the terminal device further includes: a receiving unit, configured to receive first information sent by the network device, where the first information is used to determine the first mapping order.

[0119] In some implementations, the sending unit is configured to send a first request to the network device, where the first request is used to request the first mapping order.

[0120] In some implementations, the first information is transmitted via a broadcast message.

[0121] In some implementations, the perception reference signal is a PRS, and the first information is carried in PRS configuration information; or the first information is carried in perception assistance data.

[0122] In some implementations, the first mapping order is determined based on a chaotic map, and the first information includes parameters and initial values ​​of the chaotic map.

[0123] FIG11 is a schematic diagram of a network device according to an embodiment of the present application. The network device 1100 shown in FIG11 includes a processing unit 1110 and a receiving unit 1120 .

[0124] The processing unit 1110 is configured to obtain a first mapping order associated with a perceptual reference signal;

[0125] The receiving unit 1120 is configured to receive the perception reference signal based on the first mapping order, where the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on the transmission resource.

[0126] In some implementations, the network device further includes: a first sending unit, configured to send first information to the terminal device, where the first information is used to determine a first mapping order.

[0127] In some implementations, the receiving unit 1120 is configured to receive a first request sent by the terminal device, where the first request is used to request the first mapping order.

[0128] In some implementations, the first information is transmitted via a broadcast message.

[0129] In some implementations, the receiving unit 1120 is used to receive a second request sent by a core network device, where the second request is used to request that the first mapping order be sent to a terminal device.

[0130] In some implementations, the second request carries the identifier of the core network device and / or the first mapping order.

[0131] In some implementations, the network device further includes: a second sending unit, configured to send a response message to the core network device for the second request, wherein the response message is used to indicate that the first mapping order has been sent.

[0132] In some implementations, the receiving unit 1120 is configured to receive the first information sent by a core network device.

[0133] In some implementations, the network device further includes: a third sending unit, configured to send a second request to the core network device, where the second request is used to request the first mapping order.

[0134] In some implementations, the perception reference signal is a PRS, and the first information is carried in PRS configuration information; or the first information is carried in perception assistance data.

[0135] In some implementations, the first mapping order is determined based on a chaotic map, and the first information includes parameters and initial values ​​of the chaotic map.

[0136] FIG12 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device 1200 shown in FIG12 includes: a processing unit 1210 and a receiving unit 1220 .

[0137] The processing unit 1210 is configured to obtain a first mapping order associated with a perceptual reference signal;

[0138] The receiving unit 1220 is configured to receive the perception reference signal based on the first mapping order, where the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on the transmission resource.

[0139] In some implementations, the receiving unit 1220 is configured to receive first information sent by the network device, where the first information is used to determine the first mapping order.

[0140] In some implementations, the terminal device further includes: a first sending unit, configured to send a first request to the network device, wherein the first request is used to request the first mapping order.

[0141] In some implementations, the first information is transmitted via a broadcast message.

[0142] In some implementations, the perception reference signal is a PRS, and the first information is carried in PRS configuration information; or the first information is carried in perception assistance data.

[0143] In some implementations, the first mapping order is determined based on a chaotic map, and the first information includes parameters and initial values ​​of the chaotic map.

[0144] FIG13 is a schematic diagram of a network device according to an embodiment of the present application. The network device 1300 shown in FIG13 includes a processing unit 1310 and a receiving unit 1320 .

[0145] The processing unit 1310 is configured to obtain a first mapping order associated with a perception reference signal, where the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on the transmission resource;

[0146] The sending unit 1320 is configured to send the perception reference signal to the terminal device through a transmission resource based on the first mapping order.

[0147] In some implementations, the method further includes: sending first information to the terminal device, where the first information is used to determine the first mapping order.

[0148] In some implementations, the receiving unit is used to receive a first request sent by the terminal device, where the first request is used to request the first mapping order.

[0149] In some implementations, the first information is transmitted via a broadcast message.

[0150] In some implementations, the receiving unit is used to receive a second request sent by a core network device, where the second request is used to request that the first mapping order be sent to a terminal device.

[0151] In some implementations, the second request carries the identifier of the core network device and / or the first mapping order.

[0152] In some implementations, the network device further includes: a first sending unit, configured to send a response message to the core network device for the second request, wherein the response message is used to indicate that the first mapping order has been sent.

[0153] In some implementations, the network device is an access network device, and the processing unit 1310 is configured to receive the first information sent by a core network device.

[0154] In some implementations, the sending unit is used to send a second request to the core network device, where the second request is used to request the first mapping order.

[0155] In some implementations, the perception reference signal is a PRS, and the first information is carried in PRS configuration information; or the first information is carried in perception assistance data.

[0156] In some implementations, the first mapping order is determined based on a chaotic map, and the first information includes parameters and initial values ​​of the chaotic map.

[0157] FIG14 is a schematic diagram of a terminal device according to an embodiment of the present application. The terminal device 1400 shown in FIG14 includes a receiving unit 1410 and a communication unit 1420 .

[0158] The receiving unit 1410 is configured to receive first information, where the first information is used to determine a first mapping order associated with a perception reference signal, where the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on a transmission resource.

[0159] The communication unit 1420 is configured to receive or send the perception reference signal based on the first mapping order.

[0160] In some implementations, the method further includes: sending a first request to an access network device, where the first request is used to request a first mapping order associated with the perception reference signal.

[0161] In some implementations, the first information is transmitted via a broadcast message.

[0162] In some implementations, the perception reference signal is a PRS, and the first information is carried in PRS configuration information; or the first information is carried in perception assistance data.

[0163] In some implementations, the first mapping order is determined based on a chaotic map, and the first information includes parameters and initial values ​​of the chaotic map.

[0164] FIG15 is a schematic diagram of a sensing device according to an embodiment of the present application. The sensing device 1500 shown in FIG15 includes a processing unit 1510 and a sending unit 1520 .

[0165] The processing unit 1510 is configured to generate first information, where the first information is associated with a first mapping order of a perception reference signal to be transmitted, and the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on a transmission resource.

[0166] The sending unit 1520 is configured to send first information, where the first information is used to determine the first mapping order.

[0167] In some implementations, the sending unit 1520 is configured to send first information to the terminal device, where the first information is used to determine a first mapping order.

[0168] In some implementations, the perception function device further includes: a first receiving unit, configured to receive a first request sent by the terminal device, wherein the first request is used to request the first mapping order.

[0169] In some implementations, the first information is transmitted via a broadcast message.

[0170] In some implementations, the sending unit 1520 is used to send a second request to the access network device, where the second request is used to request that the first mapping order be sent to the terminal device.

[0171] In some implementations, the second request carries an identifier of the sensory function device and / or the first mapping order.

[0172] In some implementations, the perception function device further includes: a second receiving unit, configured to receive a response message sent by the access network device to the second request, wherein the response message is used to indicate that the first mapping order has been sent.

[0173] In some implementations, the sending unit 1520 is configured to send the first information to an access network device.

[0174] In some implementations, the perception function device further includes: a third receiving unit, configured to receive a second request sent by the access network device, where the second request is used to request the first mapping order.

[0175] In some implementations, the perception reference signal is a PRS, and the first information is carried in PRS configuration information; or the first information is carried in perception assistance data.

[0176] In some implementations, the first mapping order is determined based on a chaotic map, and the first information includes parameters and initial values ​​of the chaotic map.

[0177] FIG16 is a schematic diagram of an access network device according to an embodiment of the present application. The access network device 1600 shown in FIG16 includes: a receiving unit 1610 and a processing unit 1620.

[0178] The receiving unit 1610 is configured to receive first information, where the first information is associated with a first mapping order of a perception reference signal to be transmitted, where the first mapping order is used to indicate a mapping order of a signal sequence of the perception reference signal on a transmission resource.

[0179] The processing unit 1620 is configured to receive or send the perception reference signal based on the first mapping order.

[0180] In some implementations, the access network device further includes: a first sending unit, configured to send first information to the terminal device, where the first information is used to determine a first mapping order.

[0181] In some implementations, the first information is transmitted via a broadcast message.

[0182] In some implementations, the receiving unit 1610 is configured to receive a second request sent by a perception function device, where the second request is used to request that the first mapping order be sent to a terminal device.

[0183] In some implementations, the second request carries an identifier of the sensory device and / or the first information.

[0184] In some implementations, the access network device further includes: a second sending unit, configured to send a response message to the perception function device for the second request, wherein the response message is used to indicate that the first mapping order has been sent.

[0185] In some implementations, the access network device further includes: a third sending unit, configured to send a third request to the perception function device, wherein the third request is used to request the first mapping order.

[0186] In some implementations, the perception reference signal is a PRS, and the first information is carried in PRS configuration information; or the first information is carried in perception assistance data.

[0187] In some implementations, the first mapping order is determined based on a chaotic map, and the first information includes parameters and initial values ​​of the chaotic map.

[0188] Figure 17 is a schematic block diagram of a communication device according to an embodiment of the present application. The dashed lines in Figure 17 indicate that the unit or module is optional. Device 1700 may be used to implement the method described in the above method embodiment. Device 1700 may be a chip, a terminal device, or a network device.

[0189] The device 1700 may include one or more processors 1710. The processor 1710 may support the device 1700 to implement the method described in the method embodiment above. The processor 1710 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be another general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA) or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, etc. The general-purpose processor may be a microprocessor or the processor may be any conventional processor, etc.

[0190] The apparatus 1700 may further include one or more memories 1720. The memories 1720 store programs that can be executed by the processor 1710, causing the processor 1710 to perform the methods described in the above method embodiments. The memories 1720 may be independent of the processor 1710 or integrated into the processor 1710.

[0191] The apparatus 1700 may further include a transceiver 1730. The processor 1710 may communicate with other devices or chips via the transceiver 1730. For example, the processor 1710 may transmit and receive data with other devices or chips via the transceiver 1730.

[0192] The present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the present application, and the program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0193] The present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to a terminal or network device provided in the present application, and the program causes a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0194] The embodiments of the present application also provide a computer program. The computer program can be applied to the terminal or network device provided in the embodiments of the present application, and the computer program enables a computer to execute the method performed by the terminal or network device in each embodiment of the present application.

[0195] It should be understood that the terms used in this application are intended only to explain the specific embodiments of this application and are not intended to limit this application. The terms "first," "second," and so on in the specification, claims, and accompanying drawings of this application are used to distinguish between different objects, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions.

[0196] In the embodiments of this application, the term "indication" may refer to a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" may refer to a direct indication of B, e.g., B can obtain information through A; it may refer to an indirect indication of B, e.g., A indicates C, e.g., B can obtain information through C; or it may refer to an association between A and B.

[0197] In the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined based on A. However, it should be understood that determining B based on A does not mean determining B based solely on A, but B can also be determined based on A and / or other information.

[0198] In the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and indication, configuration and configuration, etc.

[0199] In the embodiments of the present application, "pre-definition" or "pre-configuration" may be implemented by pre-storing corresponding codes, tables, or other methods that can be used to indicate relevant information in a device (e.g., a terminal device and a network device). The present application does not limit the specific implementation method. For example, pre-definition may refer to information defined in a protocol.

[0200] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communications field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0201] In the embodiments of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0202] In various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0203] In the several embodiments provided in this application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are merely schematic. For example, the division of the units is merely a logical function division. 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. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0204] The units described as separate components may or may not be physically separate, and 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 these units may be selected to achieve the purpose of this embodiment according to actual needs.

[0205] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0206] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium can be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0207] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A wireless communication method executed in a terminal device, characterized in that, Including: Obtaining a first mapping order associated with a sensing reference signal; Receiving the sensing reference signal based on the first mapping order, where the first mapping order is used to indicate the mapping order of the signal sequence of the sensing reference signal on the transmission resource.

2. The method according to claim 1, wherein Before transmitting the sensing reference signal through the transmission resource, the method further includes: Receiving first information sent by the network device, where the first information is used to determine the first mapping order.

3. The method according to claim 2, wherein Before receiving the first information sent by the network device, the method further includes: Sending a first request to the network device, where the first request is used to request the first mapping order.

4. The method according to claim 2, characterized in that, The first information is transmitted through a broadcast message.

5. The method according to any one of claims 1-4, characterized in that, The sensing reference signal is PRS, and the first information is carried in the PRS configuration information; or The first information is carried in the sensing auxiliary data.

6. The method according to any one of claims 1-5, characterized in that The first mapping order is determined based on a chaotic mapping, and the first information includes the parameters and initial values of the chaotic mapping.

7. A wireless communication method executed in a network device, characterized in that, Including: Generating a first mapping order associated with a sensing reference signal; Sending the sensing reference signal to the terminal device through the transmission resource, where the first mapping order is used to indicate the mapping order of the signal sequence of the sensing reference signal on the transmission resource.

8. The method according to claim 7, characterized in that, The method further includes: Sending first information to the terminal device, where the first information is used to determine the first mapping order.

9. The method according to claim 8, wherein Before sending the first information to the terminal device, the method further includes: Receiving a first request sent by the terminal device, where the first request is used to request the first mapping order.

10. The method according to claim 9, characterized in that, The first information is transmitted through a broadcast message.

11. The method according to claim 10, wherein The method further includes: Receiving a second request sent by the core network device, where the second request is used to request sending the first mapping order to the terminal device.

12. The method according to claim 10, wherein, The second request carries the identifier of the core network device and / or the first mapping order.

13. The method according to claim 11 or 12, characterized in that, The method further includes: Sending a response message to the core network device for the second request, where the response message is used to indicate that the first mapping order has been sent.

14. The method according to any one of claims 8-10, characterized in that, The network device is an access network device, and obtaining the first mapping order associated with the sensing reference signal includes: Receiving the first information sent by the core network device.

15. The method according to claim 14, wherein The method further includes: Sending a third request to the core network device, where the third request is used to request the first mapping order.

16. The method according to any one of claims 7 to 15, characterized in that The sensing reference signal is PRS, and the first information is carried in the PRS configuration information; or The first information is carried in the sensing auxiliary data.

17. The method according to any one of claims 7-16, characterized in that, The first mapping order is determined based on a chaotic mapping, and the first information includes the parameters and initial values of the chaotic mapping.

18. A wireless communication method executed in a terminal device, characterized in that, Including: Receiving first information, where the first information is used to determine a first mapping order associated with a sensing reference signal, and the first mapping order is used to indicate the mapping order of the signal sequence of the sensing reference signal on the transmission resource; Receiving or sending the sensing reference signal based on the first mapping order.

19. The method according to claim 18, wherein The method further includes: Sending a first request to the access network device, where the first request is used to request the first mapping order associated with the sensing reference signal.

20. The method according to claim 18, wherein The first information is transmitted through a broadcast message.

21. The method according to any one of claims 18 - 20, characterized in that, The sensing reference signal is a PRS, and the first information is carried in the PRS configuration information; or The first information is carried in the sensing auxiliary data.

22. The method according to any one of claims 18-21, characterized in that, The first mapping order is determined based on a chaotic mapping, and the first information includes the parameters and initial values of the chaotic mapping.

23. A wireless communication method executed in an access network device, characterized in that, Comprising: Receiving first information, where the first information is used to determine a first mapping order associated with a sensing reference signal to be transmitted, and the first mapping order is used to indicate the mapping order of the signal sequence of the sensing reference signal on transmission resources; Receiving or transmitting the sensing reference signal based on the first mapping order.

24. The method according to claim 23, wherein The method further includes: Sending the first information to a terminal device, where the first information is used to determine the first mapping order.

25. The method according to claim 24, wherein The first information is transmitted through a broadcast message.

26. The method according to any one of claims 23-25, characterized in that, The method further includes: Receiving a second request sent by a sensing function device, where the second request is used to request sending the first mapping order to the terminal device.

27. The method according to claim 26, wherein The second request carries the identifier of the sensing function device and / or the first information.

28. The method according to claim 26 or 27, wherein The method further includes: Sending a response message to the sensing function device for the second request, where the response message is used to indicate that the first mapping order has been sent.

29. The method according to claim 28, wherein The method further includes: Sending a third request to the sensing function device, where the third request is used to request the first mapping order.

30. The method according to any one of claims 23 - 28, characterized in that, The sensing reference signal is a PRS, and the first information is carried in the PRS configuration information; or The first information is carried in the sensing auxiliary data.

31. The method according to any one of claims 23-30, characterized in that, The first mapping order is determined based on a chaotic mapping, and the first information includes the parameters and initial values of the chaotic mapping.

32. A terminal device, characterized in that, Comprising units for performing the method according to any one of claims 1-6, 18-22.

33. A network device, characterized in that, Comprising units for performing the method according to any one of claims 7-17, 23-31.

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