Method and apparatus used in communication node for wireless communication

Abstract

The present application discloses a method and apparatus used in a communication node for wireless communication. The method comprises: a communication node transmitting a first physical signal; transmitting a second physical signal; and in response to the second physical signal being transmitted, receiving a third physical signal, wherein the third physical signal is an echo for the second physical signal. The first physical signal is received at a second node, and the second node is not a first node; transmission parameters of the first physical signal rely on the reception of at least the third physical signal; and the transmission parameters of the first physical signal comprise at least one of a transmission direction or a transmission power. The solution provided in the present application facilitates the use of a sensing result to assist a communication process within an ISAC system, optimizes communication beam management to enhance the robustness of a communication beam, improves the performance upper limit of the ISAC system, and optimizes the beam transmission power to achieve network energy saving.

Description

A method and apparatus for use in a communication node for wireless communication Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and more particularly to a method and apparatus for transmitting perception-assisted communication signals in ISAC (Integrated Sensing And Communication). Background Art

[0002] With the growing demand for sensing, the convergence of sensing and communication capabilities in networks is becoming increasingly evident. At the 3GPP RAN (Radio Access Network) #102 meeting, it was decided to initiate a channel modeling research project for the New Radio (NR) ISAC (New SID: Study on channel modeling for Integrated Sensing and Communication (ISAC) for NR). 3GPP is also considering applying artificial intelligence (AI) or machine learning (ML) to mobility to improve mobility performance.

[0003] The existing beam management mechanism does not take into account the possible introduction of ISAC-based beam selection, which results in the failure to fully utilize the ISAC perception result information for communication beam selection during the communication beam selection process, resulting in a high delay in establishing the communication beam. Summary of the Invention

[0004] In order to enhance the existing NR system's ability to perceive the physical world, 3GPP will introduce ISAC capabilities into the NR system. The inventors found that the existing mechanism did not introduce the correlation between the communication beam and the perception beam, especially when the ISAC perception beam and the communication beam both operate in higher frequency bands (above 6 GHz), the ISAC perception channel and the communication channel have similar sparsity and other characteristics. When the communication receiver of a node is the previous perception target of this node, the existing mechanism does not use the correlation between the perception beam and the communication beam to select and optimize the communication beam, which makes the NR system unable to fully utilize the advantages of the ISAC function and cannot fully utilize the previous perception result information to assist communication, so as to reduce the establishment delay of the communication beam and improve the robustness of the communication beam.

[0005] This application provides a solution to the above-mentioned problems. While the NR system is used as an example in the description of the above-mentioned problems, this application is also applicable to scenarios such as LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), or future 6G systems, achieving technical effects similar to those of the NR system. Furthermore, while this application provides specific implementations for the 3GPP system, it can also be used in non-3GPP system scenarios, achieving technical effects similar to those of the 3GPP system. Furthermore, adopting a unified design for different scenarios can also help reduce hardware complexity and cost. Furthermore, while this application is initially intended for the Uu air interface, it can also be used for the PC5 interface, achieving technical effects similar to those of the Uu air interface. Furthermore, while this application is initially intended for terminal and base station scenarios, it is also applicable to V2X (Vehicle-to-Everything) scenarios, communication scenarios between a terminal and a relay, and between a relay and a base station, achieving technical effects similar to those of the terminal and base station scenario. Furthermore, although the original intention of this application is for the terminal and base station scenario, this application is also applicable to the IAB (Integrated Access and Backhaul) communication scenario, achieving similar technical effects in the terminal and base station scenario. Furthermore, although the original intention of this application is for the terrestrial network (TN) scenario, this application is also applicable to the non-terrestrial network (NTN) communication scenario, achieving similar technical effects in the TN scenario. In addition, adopting a unified solution for different scenarios can also help reduce hardware complexity and cost.

[0006] As an embodiment, the interpretation of terminology in this application refers to the definition of 3GPP specification protocol TS36 series.

[0007] As an embodiment, the interpretation of the terms in this application refers to the definition of the 3GPP specification protocol TS38 series.

[0008] As an embodiment, the interpretation of the terms in this application refers to the definitions of the 3GPP specification protocol TS37 series.

[0009] It should be noted that, in the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0010] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0011] sending a first physical signal; sending a second physical signal;

[0012] receiving, in response to the second physical signal being sent, a third physical signal, the third physical signal being an echo of the second physical signal;

[0013] The first physical signal is received at a second node, and the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; and the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0014] As an embodiment, the problem to be solved by the present application includes: how to use the perception result information to assist in sending a communication signal.

[0015] As an embodiment, the problem to be solved by the present application includes: how to use the sensing result information to assist in the beam selection of the communication signal.

[0016] As an embodiment, the problem to be solved by the present application includes: how to use the sensing result information to assist in the power control of the communication signal.

[0017] As an embodiment, the characteristics of the above method include: the sending parameters of the first physical signal depend on the reception of at least the third physical signal.

[0018] As an embodiment, the characteristics of the above method include: the third physical signal is an echo of the second physical signal.

[0019] As an embodiment, the benefits of the above method include: facilitating the first node to optimize the transmission parameters of the communication signal based on the perception result.

[0020] As an embodiment, the benefits of the above method include: facilitating the first node to optimize the transmission beam direction of the first physical signal based on the direction of the perceived signal echo.

[0021] As an embodiment, the benefits of the above method include: facilitating the first node to optimize the transmission power of the first physical signal based on the reception strength of the perceived signal echo.

[0022] As an embodiment, the benefits of the above method include: facilitating communication signal beam alignment.

[0023] As an embodiment, the benefits of the above method include: being conducive to enhancing the robustness of the communication signal beam.

[0024] As an embodiment, the benefits of the above method include: being conducive to reducing the power of the communication signal beam and achieving network energy saving.

[0025] As an embodiment, the benefits of the above method include: being conducive to improving the performance upper limit of the system.

[0026] According to one aspect of the present application, it is characterized in that the transmission power of the first physical signal is related to a first path loss, and the first path loss depends on the reception of the third physical signal.

[0027] As an embodiment, the above method has the following benefits: it is conducive to making full use of the sensing results to assist in communication and perform large-scale fading parameter estimation of the channel.

[0028] As an embodiment, the benefits of the above method include: being facilitating determination of a suitable transmission power of the first physical signal.

[0029] As an embodiment, the benefits of the above method include: being beneficial to network energy saving.

[0030] According to one aspect of the present application, it is characterized by comprising:

[0031] The first processor transmits a plurality of physical signals; and in response to the plurality of physical signals being transmitted, detects echoes of the plurality of physical signals;

[0032] The multiple physical signals are sent in different directions; and the second physical signal is one of the multiple physical signals.

[0033] As an embodiment, the benefits of the above method include: facilitating the system to perform target angle estimation.

[0034] As an embodiment, the benefits of the above method include: facilitating the system to use a thinner beam for beam scanning.

[0035] As an embodiment, the benefits of the above method include: being conducive to expanding the sensing range.

[0036] As an embodiment, the benefits of the above method include: facilitating an increase in the sensing angle range.

[0037] As an embodiment, the benefits of the above method include: facilitating an increase in the sensing radius.

[0038] As an embodiment, the above method has the following benefits: it helps the system distinguish perceived echoes in different directions.

[0039] As an embodiment, the benefits of the above method include: facilitating the system to distinguish multiple targets in different directions.

[0040] According to one aspect of the present application, it is characterized in that the third physical signal is the best physical signal among the echoes of the multiple physical signals.

[0041] As an embodiment, the benefits of the above method include: being conducive to determining the optimal sensing beam corresponding to the communication beam.

[0042] As an embodiment, the benefits of the above method include: being facilitating determination of the optimal perception beam corresponding to the beam of the first physical signal.

[0043] According to one aspect of the present application, it is characterized by comprising:

[0044] The first processor determines the third physical signal from the echoes of the multiple physical signals.

[0045] As an embodiment, the benefits of the above method include: being conducive to optimizing the transmission parameters of the first physical signal.

[0046] According to one aspect of the present application, it is characterized in that the reception of the third physical signal depends on the sending of the second physical signal.

[0047] According to one aspect of the present application, it is characterized in that the first physical signal adopts a first waveform, and the second physical signal adopts a second waveform; the first waveform and the second waveform are different.

[0048] As an embodiment, the benefits of the above method include: being conducive to achieving better perceptual performance.

[0049] As an embodiment, the benefits of the above method include: facilitating the physical implementation of the ISAC system.

[0050] As an embodiment, the benefits of the above method include: being conducive to achieving a trade-off and optimization between ISAC perception performance and communication performance.

[0051] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0052] receiving a first physical signal;

[0053] The sender of the first physical signal sends a second physical signal; in response to the sending of the second physical signal, the sender of the first physical signal receives a third physical signal, and the third physical signal is an echo of the second physical signal; the second node is not the first node; the sending parameters of the first physical signal depend on at least the reception of the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0054] According to one aspect of the present application, it is characterized in that the transmission power of the first physical signal is related to a first path loss, and the first path loss depends on the reception of the third physical signal.

[0055] According to one aspect of the present application, it is characterized by comprising:

[0056] The sender of the first physical signal sends a plurality of physical signals; in response to the plurality of physical signals being sent, detecting echoes of the plurality of physical signals;

[0057] The multiple physical signals are sent in different directions; and the second physical signal is one of the multiple physical signals.

[0058] According to one aspect of the present application, it is characterized in that the third physical signal is the best physical signal among the echoes of the multiple physical signals.

[0059] According to one aspect of the present application, it is characterized by comprising:

[0060] The sender of the first physical signal determines the third physical signal from echoes of the plurality of physical signals.

[0061] According to one aspect of the present application, it is characterized in that the reception of the third physical signal depends on the sending of the second physical signal.

[0062] According to one aspect of the present application, it is characterized in that the reception of the third physical signal depends on the sending of the second physical signal.

[0063] According to one aspect of the present application, it is characterized in that the first physical signal adopts a first waveform, and the second physical signal adopts a second waveform; the first waveform and the second waveform are different.

[0064] The present application discloses a first node used for wireless communication, characterized by comprising:

[0065] A first transmitter transmits a first physical signal; and transmits a second physical signal;

[0066] a first receiver receiving, in response to the second physical signal being transmitted, a third physical signal, the third physical signal being an echo of the second physical signal;

[0067] The first physical signal is received at a second node, and the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; and the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0068] The present application discloses a second node used for wireless communication, characterized by comprising:

[0069] a second receiver, receiving the first physical signal;

[0070] The sender of the first physical signal sends a second physical signal; in response to the sending of the second physical signal, the sender of the first physical signal receives a third physical signal, and the third physical signal is an echo of the second physical signal; the second node is not the first node; the sending parameters of the first physical signal depend on at least the reception of the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power. As an embodiment, compared with the traditional solution, this application has the following advantages:

[0071] -. It is beneficial to assist the communication process of the perception results in the ISAC system;

[0072] -.Optimize communication beam management to enhance communication beam robustness;

[0073] -.Optimize communication transmission power to achieve network energy saving;

[0074] -. Improve the performance ceiling of the ISAC system;

[0075] -. It is conducive to achieving a trade-off between perception performance and communication performance;

[0076] -. Make full use of ISAC perception results to optimize the network;

[0077] -. It is conducive to improving ISAC perception accuracy and expanding ISAC perception range; BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0079] FIG1 shows a flow chart of ISAC-aware auxiliary communication signal transmission according to one embodiment of the present application;

[0080] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0081] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0082] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0083] FIG5 shows a wireless signal transmission flow chart according to an embodiment of the present application;

[0084] FIG6 is a schematic diagram showing a relationship between the transmit power of a first physical signal and a third physical signal according to an embodiment of the present application;

[0085] FIG7 shows a wireless signal transmission flow chart of multiple physical signals according to an embodiment of the present application;

[0086] FIG8 is a schematic diagram showing a relationship between a third physical signal and echoes of multiple physical signals according to an embodiment of the present application;

[0087] FIG9 shows a schematic diagram of determining the third physical signal according to an embodiment of the present application;

[0088] FIG10 is a schematic diagram showing a relationship between a third physical signal and a second physical signal according to an embodiment of the present application;

[0089] FIG11 is a schematic diagram showing the differences and similarities in waveforms between a first physical signal and a second physical signal according to an embodiment of the present application;

[0090] FIG12 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0091] FIG13 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application;

[0092] FIG14 shows a schematic diagram of an artificial intelligence processing system according to an embodiment of the present application. DETAILED DESCRIPTION

[0093] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0094] Example 1

[0095] Example 1 illustrates a flowchart of ISAC sensing auxiliary communication signal transmission according to an embodiment of the present application, as shown in Figure 1. In Figure 1, each box represents a step, and it is particularly important to emphasize that the order of the boxes in the figure does not represent the temporal sequence between the steps represented.

[0096] In Example 1, the first node in the present application sends a second physical signal in step 101; in step 102, as a response to the sending of the second physical signal, receives a third physical signal, and the third physical signal is an echo of the second physical signal; in step 103, sends a first physical signal; wherein the first physical signal is received at a second node, and the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0097] As an embodiment, the first node is a UE, and the second node is a UE.

[0098] As an embodiment, the first node is a UE, and the second node is a base station.

[0099] As an embodiment, the first node is a base station, and the second node is a base station.

[0100] As an embodiment, the first node is a base station, and the second node is a UE.

[0101] As an embodiment, the first physical signal is a physical layer signal.

[0102] As an embodiment, the first physical signal is generated at a physical layer.

[0103] As an embodiment, the first physical signal is a downlink physical signal.

[0104] As an embodiment, the first physical signal is a secondary link physical signal.

[0105] As an embodiment, the first physical signal is an IAB link physical signal.

[0106] As an embodiment, the first physical signal is SSB.

[0107] As an embodiment, the first physical signal is CSI-RS.

[0108] As an embodiment, the first physical signal is a PRS.

[0109] As an embodiment, the first physical signal is DMRS.

[0110] As an embodiment, the first physical signal is PDSCH.

[0111] As an embodiment, the first physical signal is PUSCH.

[0112] As an embodiment, the first physical signal is PRACH.

[0113] As an embodiment, the first physical signal is PSSCH.

[0114] As an embodiment, the first physical signal is PBCH.

[0115] As an embodiment, the first physical signal is used for NR communication.

[0116] As an embodiment, the first physical signal is used for measurement.

[0117] As an embodiment, the first physical signal is used for data transmission.

[0118] As an embodiment, the first physical signal is used for signaling transmission.

[0119] As an embodiment, the second physical signal is a reference signal.

[0120] As an embodiment, the second physical signal is a perception signal.

[0121] As an embodiment, the second physical signal is a PRS.

[0122] As an embodiment, the second physical signal is SRS.

[0123] As an embodiment, the second physical signal is an FMCW waveform.

[0124] As an embodiment, the second physical signal is an OTFS waveform.

[0125] As an embodiment, the second physical signal is an OFDM waveform.

[0126] As an embodiment, the second physical signal is used for perception.

[0127] As an embodiment, the second physical signal is used for Wi-Fi sensing.

[0128] As an embodiment, the second physical signal is used for 3GPP perception.

[0129] As an embodiment, the second physical signal is used for 5G wireless sensing.

[0130] As an embodiment, the second physical signal is a sensing signal.

[0131] As an embodiment, the second physical signal is an FR2 signal.

[0132] As an embodiment, the second physical signal is a FR3 signal.

[0133] As an embodiment, the second physical signal is a FR2 or FR1 signal.

[0134] As an embodiment, the second physical signal is a FR2 or FR3 signal.

[0135] As an embodiment, the second physical signal is a FR1 or FR3 signal.

[0136] As an embodiment, the second physical signal is a FR1, FR2 or FR3 signal.

[0137] As an embodiment, the second physical signal uses an unlicensed spectrum.

[0138] As an embodiment, the second physical signal uses the ITS spectrum.

[0139] As an embodiment, the first receiver is a sensing receiver.

[0140] As an embodiment, the first transmitter and the first receiver form a pair of sensing groups.

[0141] As an embodiment, the first physical signal and the second physical signal do not overlap in the time domain.

[0142] As an embodiment, the first physical signal and the second physical signal do not overlap in the frequency domain.

[0143] As an embodiment, the time-frequency resources occupied by the first physical signal and the time-frequency resources occupied by the second physical signal do not overlap.

[0144] As an embodiment, the first physical signal and the second physical signal are orthogonal in the time domain.

[0145] As an embodiment, the first physical signal and the second physical signal are orthogonal in the frequency domain.

[0146] As an embodiment, the first physical signal and the second physical signal are orthogonal in the time-frequency domain.

[0147] As an embodiment, the first physical signal and the second physical signal are orthogonal in the delay domain.

[0148] As an embodiment, the first physical signal and the second physical signal are orthogonal in the Doppler domain.

[0149] As an embodiment, the first physical signal and the second physical signal are orthogonal in the delay-Doppler domain.

[0150] As an embodiment, the first physical signal and the second physical signal are orthogonal in the code domain.

[0151] As an embodiment, the first physical signal and the second physical signal are spread using different orthogonal codes.

[0152] As an embodiment, the first physical signal and the second physical signal are scrambled using different pseudo-random codes.

[0153] As an embodiment, the first physical signal and the second physical signal are orthogonal in the power domain.

[0154] As an embodiment, the sentence “receiving a third physical signal in response to the second physical signal being sent” means that the second physical signal triggers the reception of the third physical signal.

[0155] As an embodiment, the third physical signal is an ISAC echo signal.

[0156] As an embodiment, the third physical signal is an echo of the second physical signal, which means that the third physical signal is an echo of the second physical signal after it is affected by a channel such as reflection, refraction, or diffraction.

[0157] As a sub-embodiment of the above embodiment, the channel includes one or more reflectors.

[0158] As a sub-embodiment of the above embodiment, the one or more reflectors include the second node, a user carrying the second node, or a device carrying the second node.

[0159] As an embodiment, the third physical signal is a wireless signal received by the first node with specific receiving parameters.

[0160] As an embodiment, the specific receiving parameter includes a receiving frequency that is the same as a transmitting frequency of the second physical signal.

[0161] As an embodiment, the specific reception parameter includes a bandwidth that is the same as a bandwidth of the second physical signal.

[0162] As an embodiment, the specific reception parameter includes a bandwidth related to a bandwidth of the second physical signal.

[0163] As an embodiment, the specific receiving parameter includes a receiving bandwidth including a transmission bandwidth of the second physical signal.

[0164] As an embodiment, the specific reception parameter includes a reception time that is the same as a transmission time of the second physical signal.

[0165] As an embodiment, the specific reception parameter includes a reception time related to a transmission time of the second physical signal.

[0166] As an embodiment, the specific receiving parameter includes a receiving time including a transmitting time of the second physical signal.

[0167] As an embodiment, the specific receiving parameter includes a receiving angle that is the same as a transmitting direction of the second physical signal.

[0168] As an embodiment, the specific receiving parameter includes a receiving angle that is opposite to the transmission direction of the second physical signal.

[0169] As an embodiment, the specific receiving parameter includes a receiving angle related to the transmission direction of the second physical signal.

[0170] As an embodiment, the specific receiving parameter includes a receiving angle including a transmission direction of the second physical signal.

[0171] As an embodiment, the transmission parameter of the first physical signal depends on the reception of at least the third physical signal, which means that the transmission direction of the first physical signal depends on the reception direction of the third physical signal.

[0172] As a sub-embodiment of the above embodiment, the sending direction of the first physical signal depends on the receiving direction of the third physical signal, which means that the sending direction of the first physical signal is the same as the receiving direction of the third physical signal.

[0173] As a sub-embodiment of the above embodiment, the sending direction of the first physical signal depends on the receiving direction of the third physical signal, which means that: the sending direction of the first physical signal is the same as the sending direction of the second physical signal; the sending direction of the second physical signal is the receiving direction of the third physical signal.

[0174] As a sub-embodiment of the above embodiment, the sending direction of the first physical signal depends on the receiving direction of the third physical signal, which means that the first node sends the first physical signal in the same transmission direction as the receiving direction of the third physical signal.

[0175] As a sub-embodiment of the above embodiment, the sending direction of the first physical signal depends on the receiving direction of the third physical signal, which means that: the first node sends the first physical signal in the same transmission direction as the sending direction of the second physical signal; the sending direction of the second physical signal is the receiving direction of the third physical signal.

[0176] As a sub-embodiment of the above embodiment, the sending direction of the first physical signal depends on the receiving direction of the third physical signal, which means that when the first node sends the first physical signal, it adopts the same transmission direction as the receiving direction of the third physical signal.

[0177] As a sub-embodiment of the above embodiment, the sending direction of the first physical signal depends on the receiving direction of the third physical signal, which means that when the first node sends the first physical signal, it adopts the same sending direction as the second physical signal; the sending direction of the second physical signal is the receiving direction of the third physical signal.

[0178] As an embodiment, the transmission parameter of the first physical signal depends on the reception of at least the third physical signal, which means that the transmission direction of the first physical signal and the reception direction of the third physical signal are reciprocal / symmetric.

[0179] As an embodiment, the transmission parameter of the first physical signal depends on the reception of at least the third physical signal, which means that when the first node sends the first physical signal, it adopts a transmission direction that is reciprocal / symmetric with that of receiving the third physical signal.

[0180] As an embodiment, the transmission parameters of the first physical signal depend on the reception of at least the third physical signal, which means that when the first node sends the first physical signal, it adopts and receives reciprocal / symmetric spatial filter parameters of the third physical signal.

[0181] As an embodiment, the transmission parameter of the first physical signal depends on the reception of at least the third physical signal, which means that when the first node sends the first physical signal, a spatial relationship (Spatial Relation) based on the third physical signal is applied.

[0182] As an embodiment, the transmission parameters of the first physical signal depend on the reception of at least the third physical signal, which means that when the first node sends the first physical signal, it adopts an array antenna steering vector that is reciprocal / symmetric with the reception of the third physical signal.

[0183] As an embodiment, the transmission parameter of the first physical signal depends on the reception of at least the third physical signal, which means that the transmission power of the first physical signal depends on the reception of the third physical signal.

[0184] As an embodiment, the transmission parameter of the first physical signal depends on the reception of at least the third physical signal, which means that the transmission power of the first physical signal depends on the transmission of the second physical signal and the reception of the third physical signal.

[0185] As an embodiment, the reception of the third physical signal is the reception time of the third physical signal.

[0186] As an embodiment, the reception of the third physical signal is the receiving direction of the third physical signal.

[0187] As an embodiment, the reception of the third physical signal is the reception power of the third physical signal.

[0188] As an embodiment, the sending of the second physical signal is the sending time of the second physical signal.

[0189] As an embodiment, the sending of the second physical signal is the sending direction of the second physical signal.

[0190] As an embodiment, the transmission of the second physical signal is the transmission power of the second physical signal.

[0191] As an embodiment, the sending direction refers to the antenna direction.

[0192] As an embodiment, the sending direction refers to the direction of the beamforming vector.

[0193] As an embodiment, the sending direction refers to the propagation direction of the electromagnetic wave.

[0194] As an embodiment, the sending direction refers to a spatial filtering parameter.

[0195] As an embodiment, the sending direction refers to the beam direction.

[0196] As an embodiment, the transmitting direction refers to the main lobe direction of the beam.

[0197] As an embodiment, the sending direction refers to the sending beam direction.

[0198] As an embodiment, the transmitting power refers to the transmitting power.

[0199] As an embodiment, the transmission power refers to path loss.

[0200] Example 2

[0201] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG2 . FIG2 illustrates a network architecture 200 of a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system. The 5G NR / LTE / LTE-A network architecture 200 may be referred to as a 5G System (5G System) / EPS (Evolved Packet System) 200 or some other appropriate terminology. The 5GS / EPS 200 includes at least one of a UE (User Equipment) 201, a RAN (Radio Access Network) 202, a 5G Core Network (5G Core Network) / EPC (Evolved Packet Core) 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and an Internet service 230. 5GS / EPS can be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown, 5GS / EPS provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 can be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter / receiver node), or some other appropriate terminology. Node 203 provides an access point to the 5GC / EPC 210 for UE 201. Examples of UE 201 include a cellular phone, a smart phone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, non-terrestrial base station communications, satellite mobile communications, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband Internet of Things device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device.Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other appropriate term. Node 203 is connected to 5GC / EPC 210 via an S1 / NG interface. 5GC / EPC 210 includes MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, S-GW (Service Gateway) / UPF (User Plane Function) 212, and P-GW (Packet Data Network Gateway) / UPF 213. MME / AMF / SMF 211 is a control node that handles signaling between UE 201 and 5GC / EPC 210. Generally, MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through S-GW / UPF 212, which is itself connected to P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. P-GW / UPF 213 is connected to Internet Services 230. Internet Services 230 includes operator-specific Internet Protocol services, which may include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0202] As an embodiment, the UE201 corresponds to the first node in this application.

[0203] As an embodiment, the UE 201 is a user equipment (UE).

[0204] As an embodiment, the UE 201 is a base station (BS).

[0205] As an embodiment, the UE 201 is a relay device.

[0206] As an embodiment, the UE 201 is a gateway device.

[0207] As an embodiment, the node 203 corresponds to the second node in this application.

[0208] As an embodiment, the node 203 is a base station device.

[0209] As an embodiment, the node 203 is a user equipment.

[0210] As an embodiment, the node 203 is a relay device.

[0211] As an embodiment, the node 203 is a gateway device.

[0212] Typically, the UE 201 is a user equipment, and the node 203 is a base station device.

[0213] Typically, the UE 201 is a user equipment, and the node 203 is a user equipment.

[0214] Typically, the UE 201 is a base station device, and the node 203 is a base station device.

[0215] As an embodiment, the user equipment supports transmission of a non-terrestrial network (NTN).

[0216] As an embodiment, the user equipment supports transmission via a terrestrial network (Terrestrial Network).

[0217] As an embodiment, the user equipment supports dual connection (DC) transmission.

[0218] As an embodiment, the user equipment includes an aircraft.

[0219] As an embodiment, the user equipment includes a vehicle-mounted terminal.

[0220] As an embodiment, the user equipment includes a vessel.

[0221] As an embodiment, the user equipment includes an Internet of Things terminal.

[0222] As an embodiment, the user equipment includes a terminal of the Industrial Internet of Things.

[0223] As an embodiment, the user equipment includes a device that supports low-latency and high-reliability transmission.

[0224] As an embodiment, the user equipment includes a test device.

[0225] As an embodiment, the user equipment includes a signaling tester.

[0226] As an embodiment, the user equipment includes an IAB (Integrated Access and Backhaul)-MT (Mobile Termination).

[0227] As an embodiment, the base station device supports transmission in a non-terrestrial network.

[0228] As an embodiment, the base station device supports transmission of a terrestrial network.

[0229] As an embodiment, the base station equipment includes a base transceiver station (Base Transceiver Station, BTS).

[0230] As an embodiment, the base station device includes a Node B (NB).

[0231] As an embodiment, the base station device includes a gNB.

[0232] As an embodiment, the base station device includes an eNB.

[0233] As an embodiment, the base station device includes ng-eNB.

[0234] As an embodiment, the base station device includes an en-gNB.

[0235] As an embodiment, the base station device includes a CU (Centralized Unit).

[0236] As an embodiment, the base station device includes a DU (Distributed Unit).

[0237] As an embodiment, the base station device includes a TRP (Transmitter Receiver Point).

[0238] As an embodiment, the base station device includes a macro cellular (Marco Cellular) base station.

[0239] As an embodiment, the base station device includes a micro cell base station.

[0240] As an embodiment, the base station device includes a pico cell (Pico Cell) base station.

[0241] As an embodiment, the base station device includes a home base station (Femtocell).

[0242] As an embodiment, the base station device includes a flying platform device.

[0243] As an embodiment, the base station device includes a satellite device.

[0244] As an embodiment, the base station device includes a testing device.

[0245] As an embodiment, the base station equipment includes a signaling tester.

[0246] As an embodiment, the base station device includes a gateway device.

[0247] As an embodiment, the base station device includes an IAB-node.

[0248] As an embodiment, the base station device includes an IAB-donor.

[0249] As an embodiment, the base station device includes an IAB-donor-CU.

[0250] As an embodiment, the base station device includes an IAB-donor-DU.

[0251] As an embodiment, the base station device includes an IAB-DU.

[0252] As an embodiment, the base station device includes an IAB-MT.

[0253] As an embodiment, the relay device includes a relay.

[0254] As an embodiment, the relay device includes an L3 relay.

[0255] As an embodiment, the relay device includes an L2 relay.

[0256] As an embodiment, the relay device includes a router.

[0257] As an embodiment, the relay device includes a switch.

[0258] As an embodiment, the relay device includes a gateway device.

[0259] As an embodiment, the relay device includes user equipment.

[0260] As an embodiment, the relay device includes a base station device.

[0261] Example 3

[0262] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in FIG3 . FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for the control plane 300 using three layers: Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and supports inter-zone mobility. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture in the user plane 350 is generally identical to the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS flows to data radio bearers (DRBs) to support service diversity.

[0263] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0264] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0265] As an embodiment, the first physical signal in the present application is generated by the PHY301 or PHY351.

[0266] As an embodiment, the first physical signal in the present application is generated by the MAC302 or MAC352.

[0267] As an embodiment, the second physical signal in the present application is generated by the PHY301 or PHY351.

[0268] As an embodiment, the second physical signal in the present application is generated by the MAC302 or MAC352.

[0269] As an embodiment, the third physical signal in the present application is generated by the PHY301 or PHY351.

[0270] As an embodiment, the third physical signal in the present application is generated by the MAC302 or MAC352.

[0271] Example 4

[0272] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0273] The first communication device 450 includes a controller / processor 459 , a memory 460 , a data source 467 , a transmit processor 468 , a receive processor 456 , a multi-antenna transmit processor 457 , a multi-antenna receive processor 458 , a transmitter / receiver 454 and an antenna 452 .

[0274] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 , and an antenna 420 .

[0275] During transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to the controller / processor 475 at the second communication device 410. The controller / processor 475 implements L2 layer functionality. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0276] During transmission from the second communications device 410 to the first communications device 450, each receiver 454 at the first communications device 450 receives a signal via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a fast Fourier transform (FFT). In the frequency domain, the receive processor 456 demultiplexes the physical layer data signal and reference signal, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communications device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the second communication device 410 to the second communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 layer for L3 processing.

[0277] During transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functionality at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, the stream is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0278] During transmission from the first communications device 450 to the second communications device 410, the functionality at the second communications device 410 is similar to the reception functionality at the first communications device 450 described for transmission from the second communications device 410 to the first communications device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. A controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. During transmission from the first communications device 450 to the second communications device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0279] As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: sends a first physical signal; sends a second physical signal; receives a third physical signal in response to the second physical signal being sent, and the third physical signal is an echo for the second physical signal; the first physical signal is received at a second node, and the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0280] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, the actions including: sending a first physical signal; sending a second physical signal; receiving a third physical signal in response to the second physical signal being sent, wherein the third physical signal is an echo of the second physical signal; the first physical signal is received at a second node, and the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0281] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 410 at least: receives a first physical signal; the sender of the first physical signal sends a second physical signal; in response to the sending of the second physical signal, the sender of the first physical signal receives a third physical signal, the third physical signal being an echo of the second physical signal; the second node is not the first node; the transmission parameters of the first physical signal depend on the reception of at least the third physical signal; the transmission parameters of the first physical signal include at least one of a transmission direction or a transmission power.

[0282] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, the actions including: receiving a first physical signal; the sender of the first physical signal sends a second physical signal; in response to the second physical signal being sent, the sender of the first physical signal receives a third physical signal, and the third physical signal is an echo of the second physical signal; the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0283] As an embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 is used to transmit the first physical signal.

[0284] As an embodiment, at least one of the antenna 420 , the receiver 418 , the receiving processor 470 , and the controller / processor 475 is used to receive the first physical signal.

[0285] As an embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 is used to transmit the second physical signal.

[0286] As an embodiment, at least one of the antenna 420 , the receiver 418 , the receiving processor 470 , and the controller / processor 475 is used to receive the third physical signal.

[0287] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0288] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0289] As an embodiment, the first communication device 450 is a user equipment.

[0290] As an embodiment, the first communication device 450 is a base station device.

[0291] As an embodiment, the first communication device 450 is a relay device.

[0292] As an embodiment, the second communication device 410 is a user equipment.

[0293] As an embodiment, the second communication device 410 is a base station device.

[0294] As an embodiment, the second communication device 410 is a relay device.

[0295] Example 5

[0296] Example 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG5. It should be noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

[0297] For the first node U01:

[0298] In step S5101, a second physical signal is sent;

[0299] In step S5102, as a response to the second physical signal being sent, a third physical signal is received, where the third physical signal is an echo of the second physical signal;

[0300] In step S5103, a first physical signal is sent;

[0301] For the second node N02:

[0302] In step S5201, a second physical signal is reflected;

[0303] In step S5202, a first physical signal is received;

[0304] In embodiment 5, the first physical signal is received at a second node, which is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0305] As an embodiment, the first node U01 and the second node N02 are connected wirelessly.

[0306] As an embodiment, the first node U01 and the second node N02 are connected via a wired connection.

[0307] As an embodiment, the first node U01 and the second node N02 are connected via a Uu port.

[0308] As an embodiment, the first node U01 and the second node N02 are connected via an IAB port.

[0309] As an embodiment, the first node U01 and the second node N02 are connected via a PC5 interface.

[0310] As an embodiment, the step S5201 of reflecting the second physical signal is optional.

[0311] As an embodiment, the step S5201 reflects that the second physical signal exists.

[0312] As an embodiment, step S5103 is performed after step S5102.

[0313] As an embodiment, the step S5201 of reflecting the second physical signal means that one or more physical surfaces of the second node cause reflection and / or refraction and / or diffraction effects on the second physical signal.

[0314] As an embodiment, the step S5201 of reflecting the second physical signal means that the second node passively reflects the second physical signal.

[0315] As an embodiment, the step S5201 of reflecting the second physical signal means that the second node actively reflects the second physical signal.

[0316] As an embodiment, the step S5201 of reflecting the second physical signal means that a RIS (Reconfigurable Intelligent Surface) on the second node reflects the second physical signal.

[0317] As an embodiment, during the process of reflecting the second physical signal in step S5201, the second physical signal is not amplified by an active device in the second node.

[0318] As an embodiment, during the process of reflecting the second physical signal in step S5201, the second physical signal is amplified by an active device in the second node.

[0319] As an embodiment, during the process of reflecting the second physical signal in step S5201, the second node does not need to perform any action or response.

[0320] As an embodiment, the process of reflecting the second physical signal in step S5201 is transparent to the second node.

[0321] As an embodiment, the process of reflecting the second physical signal in step S5201 is not transparent to the second node.

[0322] As an embodiment, during the process of reflecting the second physical signal in step S5201, the second node receives the second physical signal.

[0323] As an embodiment, the step S5201 of reflecting the second physical signal includes: one or more physical surfaces of the second node causing reflection and / or refraction and / or diffraction effects on the second physical signal.

[0324] As a sub-embodiment of the above embodiment, the reflection may produce a half-wave loss.

[0325] As a sub-embodiment of the above embodiment, the reflection may produce a phase jump.

[0326] As a sub-embodiment of the above embodiment, the reflection may produce a half-wave jump.

[0327] As an embodiment, the step S5201 of reflecting the second physical signal includes: the second node passively reflecting the second physical signal.

[0328] As an embodiment, the step S5201 of reflecting the second physical signal includes: the second node actively reflecting the second physical signal.

[0329] As an embodiment, the step S5201 of reflecting the second physical signal includes: the RIS on the second node reflects the second physical signal.

[0330] As an embodiment, the step S5201 of reflecting the second physical signal includes: the second node receiving the second physical signal.

[0331] As a sub-embodiment of the above embodiment, the receiving includes decoding the second physical signal.

[0332] As a sub-embodiment of the above embodiment, the receiving includes detecting the second physical signal.

[0333] As a subsidiary embodiment of the above sub-embodiment, the detection includes radar detection.

[0334] As a subsidiary embodiment of the above sub-embodiment, the detecting includes monitoring the second physical signal.

[0335] As a sub-embodiment of the above embodiment, the receiving includes measuring the second physical signal.

[0336] As a subsidiary embodiment of the above sub-embodiment, the measurement includes RSRP measurement.

[0337] As a subsidiary embodiment of the above sub-embodiment, the measurement includes RSRQ measurement.

[0338] As a subsidiary embodiment of the above sub-embodiment, the measurement includes CQI.

[0339] As a subsidiary embodiment of the above sub-embodiment, the measurement includes RI.

[0340] As a subsidiary embodiment of the above sub-embodiment, the measurement includes PMI.

[0341] As a sub-embodiment of the above embodiment, the step S5201 of reflecting the second physical signal means that the second node reflects the second physical signal and the second node receives the second physical signal.

[0342] As a sub-embodiment of the above embodiment, the step S5201 of reflecting the second physical signal means that: the second node receives the second physical signal; and in response to receiving the second physical signal, the second node reflects the second physical signal.

[0343] As a sub-embodiment of the above embodiment, the step S5201 reflecting the second physical signal means: the second node receives the second physical signal; in response to receiving the second physical signal, the second node processes the second physical signal to obtain the third physical signal, and sends the third physical signal.

[0344] As a subsidiary embodiment of the above sub-embodiment, the processing includes power amplification.

[0345] As a subsidiary embodiment of the above sub-embodiment, the processing includes beamforming.

[0346] As a subsidiary embodiment of the above sub-embodiment, the processing includes phase shifting.

[0347] As a subsidiary embodiment of the above sub-embodiment, the processing includes modulating the additional information.

[0348] As a subsidiary embodiment of the above sub-embodiment, the processing includes adding additional information.

[0349] As an embodiment, the transmission parameters of the first physical signal depend on the reception of at least the third physical signal only when all conditions in the first condition set are met.

[0350] As an embodiment, when any condition in the first condition set is met, the transmission parameters of the first physical signal depend on the reception of at least the third physical signal.

[0351] As an embodiment, when at least some of the conditions in the first condition set are met, the transmission parameters of the first physical signal depend on the reception of at least the third physical signal.

[0352] As an embodiment, the first condition set is preconfigured.

[0353] As an embodiment, the first condition set is predefined.

[0354] As an embodiment, the first condition set is a default one.

[0355] As an embodiment, the first condition set includes at least one condition.

[0356] As an embodiment, the first condition set includes: the difference between the time when the first node sends the first physical signal and receives the third physical signal is not greater than a first time length.

[0357] As an embodiment, the first condition set includes: the difference between the time when the first node sends the first physical signal and receives the third physical signal is less than a first time length.

[0358] As an embodiment, the first condition set includes: the difference between the time when the first node sends the first physical signal and the time when the first node sends the second physical signal is not greater than a first time length.

[0359] As an embodiment, the first condition set includes: the difference between the time when the first node sends the first physical signal and the time when the first node sends the second physical signal is less than a first time length.

[0360] As an embodiment, the first condition set includes: the time when the first node sends the first physical signal belongs to a first time interval.

[0361] As an embodiment, the start time of the first time interval is the time when the second physical signal is sent.

[0362] As an embodiment, the start time of the first time interval is the time of receiving the third physical signal.

[0363] As an embodiment, the length of the first time interval is preconfigured.

[0364] As an embodiment, the length of the first time interval is predefined.

[0365] As an embodiment, the length of the first time interval is a default length.

[0366] As an embodiment, the length of the first time interval is determined by the UE.

[0367] As an embodiment, the length of the first time interval depends on the reception of the third physical signal.

[0368] As an embodiment, the receiving of the third physical signal includes: a speed measurement result of the target.

[0369] As an embodiment, the receiving of the third physical signal includes: a distance measurement result of the target.

[0370] As an embodiment, the receiving of the third physical signal includes: a positioning measurement result of the target.

[0371] As an embodiment, the first condition set includes: the second physical signal is for a specific perception function.

[0372] As an embodiment, the specific perception function is target detection.

[0373] As an embodiment, the specific perception function is target recognition.

[0374] As an embodiment, the specific perceptual function is target parameter estimation.

[0375] As an embodiment, the specific perception function is target tracking.

[0376] As an embodiment, the specific perception function includes target detection.

[0377] As an embodiment, the specific perception function includes target recognition.

[0378] As an embodiment, the specific perception function includes target parameter estimation.

[0379] As an embodiment, the specific perception function includes target tracking.

[0380] As an embodiment, the first condition set includes: the first node does not detect beam failure within a second time interval.

[0381] As an embodiment, the first condition set includes: no beam failure recovery (Beam Failure Recovery, BFR) occurs on the first node within a second time interval.

[0382] As an embodiment, the first condition set includes: no radio link failure (RLF) occurs to the first node within a second time interval.

[0383] As an embodiment, the first condition set includes: no beam switching (Radio Link Failure, RLF) occurs at the first node within a second time interval.

[0384] As an embodiment, the start time of the second time interval is the time when the second physical signal is sent.

[0385] As an embodiment, the start time of the second time interval is the time of receiving the third physical signal.

[0386] As an embodiment, the end time of the second time interval is the time when the first physical signal is sent.

[0387] As an embodiment, the first condition set includes: the first node does not receive NACK feedback for the first physical signal from the second node.

[0388] As an embodiment, the first condition set includes: the first node receives ACK feedback for the first physical signal from the second node.

[0389] As an embodiment, the feedback is transmitted via PSFCH.

[0390] As an embodiment, the first condition set includes: the time when the first node sends the first physical signal falls within the first time interval and no beam failure is detected within the first time interval.

[0391] As an embodiment, the first condition set includes: the time when the first node sends the first physical signal falls within the first time interval and no beam failure recovery (Beam Failure Recovery, BFR) occurs within the first time interval.

[0392] As an embodiment, the first condition set includes: the time when the first node sends the first physical signal falls within the first time interval and no radio link failure (Radio Link Failure, RLF) occurs within the first time interval.

[0393] As an embodiment, the first condition set includes: the first physical signal and the second physical signal are both FR2 signals.

[0394] As an embodiment, the first condition set includes: the communication identifier of the receiver of the first physical signal matches the perception result of the third physical signal.

[0395] As an embodiment, the first condition set includes: the communication identification of the receiver of the first physical signal matches the perception configuration of the second physical signal.

[0396] As an embodiment, the communication identifier is an RNTI.

[0397] As an embodiment, the communication identifier is C-RNTI.

[0398] As an embodiment, the communication identifier is RA-RNTI.

[0399] As an embodiment, the communication identifier is TC-RNTI.

[0400] As an embodiment, the communication identifier is PCI.

[0401] As an embodiment, the perception result includes the output of the target recognition module.

[0402] As an embodiment, the perception result includes the output of the target detection module.

[0403] As an embodiment, the perception result includes the output of a target tracking module.

[0404] As an embodiment, the perception result includes a perception target identifier from a perception layer.

[0405] As an embodiment, the perception configuration includes a perception target identifier.

[0406] As an embodiment, the first condition includes that the first node is located in a first area.

[0407] As an embodiment, the first condition includes that the second node is located in a first area.

[0408] As an embodiment, the first condition includes that the first node and the second node are both located in a first area.

[0409] As an embodiment, the first condition includes that at least one of the first node and the second node is located in a first area.

[0410] As an embodiment, the first area is a target sensing service area.

[0411] As an embodiment, the first area is preconfigured.

[0412] As an embodiment, the first area depends on the configuration of the second physical signal.

[0413] As an embodiment, the first area is a specific location area.

[0414] As an embodiment, the first area includes an indoor environment and / or an outdoor environment.

[0415] As an embodiment, the first condition set includes: a change in the path loss RSRP of the first physical signal does not exceed a first threshold.

[0416] As an embodiment, the first condition set includes: within the first time interval, the path loss RSRP change of the first physical signal does not exceed a first threshold.

[0417] As an embodiment, the first condition set includes: within the second time interval, the path loss RSRP change of the first physical signal does not exceed a first threshold.

[0418] As an embodiment, the first threshold is preconfigured.

[0419] As an embodiment, the first threshold is predefined.

[0420] As an embodiment, the first threshold is determined by the UE.

[0421] Example 6

[0422] Embodiment 6 illustrates a schematic diagram of the relationship between the transmission power of the first physical signal and the third physical signal according to an embodiment of the present application, as shown in FIG6 .

[0423] In embodiment 6, the transmission power of the first physical signal is related to a first path loss, and the first path loss depends on the reception of the third physical signal.

[0424] As an embodiment, the third physical signal is a path loss reference signal.

[0425] As an embodiment, the first path loss depends on a time interval between when the second physical signal is sent and when the third physical signal is received.

[0426] As an embodiment, the longer the time interval between when the second physical signal is sent and when the third physical signal is received is, the greater the first path loss is.

[0427] As an embodiment, the smaller the time interval between when the second physical signal is sent and when the third physical signal is received, the smaller the first path loss.

[0428] As an embodiment, the smaller the time interval between when the second physical signal is sent and when the third physical signal is received, the smaller the first path loss is.

[0429] As an embodiment, the first path loss being dependent on the reception of the third physical signal means that the first path loss is dependent on the receiving power after receiving the third physical signal and performing pulse compression.

[0430] As an embodiment, the received power after pulse compression refers to the power of the echo generated by the reflection of the sensing target in the third physical signal.

[0431] As an embodiment, the first path loss depends on the receiving power and pulse compression gain of the third physical signal after receiving and pulse compressing the third physical signal and the transmitting power of the second physical signal.

[0432] As an embodiment, the first path loss depends on the signal-to-noise ratio and pulse compression gain after receiving the third physical signal and performing pulse compression, the transmission power of the second physical signal, and the RCS gain of the sensing target.

[0433] As an embodiment, the first path loss is linearly correlated with the first reference loss.

[0434] As an embodiment, the first reference loss = the transmission power of the second physical signal - the receiving power of the third physical signal after pulse compression - the pulse compression gain.

[0435] As an embodiment, the first reference loss = the transmission power of the second physical signal - the received power of the third physical signal after pulse compression - the pulse compression gain + the RCS gain of the perceived target.

[0436] As an embodiment, the first reference loss = (transmitting power of the second physical signal - receiving power of the third physical signal after pulse compression - pulse compression gain + RCS gain of the perceived target) / 2.

[0437] As an embodiment, the first path loss = (transmitting power of the second physical signal - receiving power of the third physical signal after pulse compression - pulse compression gain + RCS gain of the perceived target) / 2.

[0438] As an embodiment, the pulse compression gain is related to the number of sampling points in a single perception unit.

[0439] As an embodiment, the pulse compression gain is related to the duration of a single sensing unit and its sampling frequency.

[0440] As an embodiment, the pulse compression gain is related to the number of sampling points in a single chip.

[0441] As an embodiment, the pulse compression gain is related to the duration of a single chip and its sampling frequency.

[0442] As an embodiment, the first reference loss = the transmission power of the second physical signal - the reception power of the third physical signal.

[0443] As an embodiment, the first reference loss = the transmission power of the second physical signal - the reception power of the third physical signal + the RCS gain of the perception target.

[0444] As an embodiment, the first reference loss = (transmitting power of the second physical signal - receiving power of the third physical signal + RCS gain of the sensing target) / 2.

[0445] As an embodiment, the first path loss = (transmitting power of the second physical signal - receiving power of the third physical signal + RCS gain of the sensing target) / 2.

[0446] As an embodiment, the received power of the third physical signal refers to the signal power reflected from the sensing target before pulse compression is performed.

[0447] As an embodiment, the received power of the third physical signal refers to the signal power reflected from the sensing target before being restored to pulse compression.

[0448] As an embodiment, the sensing target is the second node.

[0449] As an embodiment, the perception target includes the second node.

[0450] As an embodiment, the first path loss depends on the reception of the third physical signal, which means that: the first path loss depends on the perception result of the first node on the perception target, the perception result depends on the detection of the echoes of the multiple physical signals, and the third physical signal is one of the echoes of the multiple physical signals.

[0451] As a sub-embodiment of the above embodiment, the perception result of the perception target includes the relative distance between the first node and the second node.

[0452] As a sub-embodiment of the above embodiment, the perception result of the perception target includes a relative speed between the first node and the second node.

[0453] As a sub-embodiment of the above embodiment, the perception result of the perception target includes the RCS size of the first node.

[0454] As a sub-embodiment of the above embodiment, the perception result of the perception target is used as at least part of the parameters in the path loss calculation to derive the first path loss.

[0455] As a sub-embodiment of the above embodiment, the path loss calculation refers to 3GPP TS 38.901.

[0456] As an embodiment, the transmission power of the first physical signal is related to the first path loss, which means that the adjustment of the transmission power of the first physical signal depends on the determination of the first path loss.

[0457] As an embodiment, the transmission power adjustment of the first physical signal is a closed-loop power adjustment.

[0458] As a sub-embodiment of the above embodiment, the closed-loop adjustment means that the transmission power of the first physical signal is related to the first path loss; the third physical signal is an echo of the second physical signal; and the first path loss depends on the reception of the third physical signal.

[0459] As an embodiment, the first path loss being dependent on the reception of the third physical signal means that determination of the first path loss is dependent on determination of a first time length.

[0460] As an embodiment, the first time length refers to the length of the time interval between when the second physical signal is sent and when the third physical signal is received.

[0461] As an embodiment, the first time length refers to the time difference between the sending timing of the second physical signal and the receiving timing of the third physical signal.

[0462] As an embodiment, the determination of the first time length depends on the reception of the third physical signal.

[0463] As an embodiment, the determination of the first time length depends on ISAC capabilities.

[0464] As an embodiment, the first path loss is linearly related to a logarithmic function of the first time length.

[0465] As an embodiment, within a certain range, the first path loss is linearly correlated with a logarithmic function of the first time length.

[0466] As an embodiment, the first path loss is linearly related to the logarithm of the first time length with base 10.

[0467] As an embodiment, within a certain range, the first path loss is linearly correlated with the logarithm of the first time length with base 10.

[0468] Example 7

[0469] Example 7 illustrates a wireless signal transmission flow chart of multiple physical signals according to an embodiment of the present application, as shown in FIG7 .

[0470] In Example 7, the first node in the present application sends multiple physical signals in step 701; in step 702, as a response to the multiple physical signals being sent, detects the echo of the multiple physical signals; wherein the sending directions of the multiple physical signals are different; and the second physical signal is one of the multiple physical signals.

[0471] As an embodiment, the multiple physical signals do not overlap in the time domain.

[0472] As an embodiment, the multiple physical signals overlap in the frequency domain.

[0473] As an embodiment, the multiple physical signals occupy the same frequency domain resources.

[0474] As an embodiment, the multiple physical signals are orthogonal in the time domain.

[0475] As an embodiment, the multiple physical signals are orthogonal in the frequency domain.

[0476] As an embodiment, the multiple physical signals are orthogonal in the time-frequency domain.

[0477] As an embodiment, the multiple physical signals are orthogonal in the delay domain.

[0478] As an embodiment, the multiple physical signals are orthogonal in the Doppler domain.

[0479] As an embodiment, the multiple physical signals are orthogonal in the delay-Doppler domain.

[0480] As an embodiment, the multiple physical signals are orthogonal in the code domain.

[0481] As an embodiment, the multiple physical signals are spread using different orthogonal codes.

[0482] As an embodiment, the multiple physical signals are scrambled using different pseudo-random codes.

[0483] As an embodiment, the multiple physical signals are all perception signals.

[0484] As an embodiment, the echoes of the multiple physical signals refer to: multiple echoes respectively corresponding to the multiple physical signals reflected by one or more objects or nodes.

[0485] As an embodiment, there is a one-to-one correspondence between the multiple physical signals and the multiple echoes.

[0486] As an embodiment, the second physical signal is one of the multiple physical signals, and the third physical signal is one of the multiple echoes.

[0487] As an embodiment, the reflectors experienced by the multiple physical signals are the same one or more objects or nodes; the reflectors are reflectors that reflect the multiple physical signals and generate echoes of the multiple physical signals.

[0488] As an embodiment, the reflectors experienced by the multiple physical signals are different one or more objects or nodes; the reflectors are reflectors that reflect the multiple physical signals and generate echoes of the multiple physical signals.

[0489] As an embodiment, the reflectors experienced by the multiple physical signals may be the same one or more objects or nodes; the reflector is a reflector that reflects the multiple physical signals and generates echoes of the multiple physical signals.

[0490] As an embodiment, the reflectors experienced by the multiple physical signals may be different one or more objects or nodes; the reflectors are reflectors that reflect the multiple physical signals and generate echoes of the multiple physical signals.

[0491] As an embodiment, the experiencing is reflected.

[0492] As an embodiment, the sending of the plurality of physical signals and the detection of their echoes are preconfigured.

[0493] As an embodiment, the sending of the multiple physical signals and the detection of their echoes are semi-persistently scheduled.

[0494] As an embodiment, the sending of the multiple physical signals and the detection of their echoes are DCI scheduled.

[0495] As an embodiment, the sending of the multiple physical signals and the detection of their echoes are scheduled by MAC CE.

[0496] As an embodiment, the sending of the multiple physical signals and the detection of their echoes are scheduled by RRC signaling.

[0497] As an embodiment, any one of the multiple physical signals includes one or more perception units.

[0498] As a sub-embodiment of the above embodiment, the sensing unit is a sensing pulse.

[0499] As a sub-embodiment of the above embodiment, the sensing unit is a chirp signal.

[0500] As a sub-embodiment of the above embodiment, the sensing unit is a chirp code chip.

[0501] As a sub-embodiment of the above embodiment, the sensing unit is an OFDM RE.

[0502] As a sub-embodiment of the above embodiment, the sensing unit is an OFDM time-frequency unit.

[0503] As a sub-embodiment of the above embodiment, the sensing unit is an OTFS RE.

[0504] As a sub-embodiment of the above embodiment, the sensing unit is an OTFS delay-Doppler unit.

[0505] As a sub-embodiment of the above embodiment, the sensing unit is a group of chirp signals.

[0506] As a sub-embodiment of the above embodiment, the sensing unit is a group of chirp chips.

[0507] As a sub-embodiment of the above embodiment, the sensing unit is a group of OFDM REs.

[0508] As a sub-embodiment of the above embodiment, the sensing unit is a group of OFDM time-frequency units.

[0509] As a sub-embodiment of the above embodiment, the sensing unit is a group of OTFS REs.

[0510] As a sub-embodiment of the above embodiment, the sensing unit is a group of OTFS delay-Doppler units.

[0511] As a sub-embodiment of the above embodiment, the sensing unit is a sensing signal transmission symbol.

[0512] As an embodiment, the detection includes: measuring an angle of arrival (AOA) of the echo.

[0513] As an embodiment, the detection includes: measuring the RSRP of the echo.

[0514] As an embodiment, the detection includes: combining the multiple physical signals and their echoes, and measuring the wireless channel experienced by the echoes.

[0515] As a sub-embodiment of the above embodiment, the wireless channel is a sensory channel.

[0516] As a sub-embodiment of the above embodiment, the measurement is a parameter estimation.

[0517] As a sub-embodiment of the above embodiment, the measurement includes delay measurement.

[0518] As a sub-embodiment of the above embodiment, the measurement includes Doppler measurement.

[0519] As a sub-embodiment of the above embodiment, the measurement includes delay and Doppler measurement.

[0520] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channels experienced by their echoes includes: utilizing autocorrelation characteristics of the physical signals and their echoes.

[0521] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channel experienced by the echoes includes: using a matched filter to perform pulse compression.

[0522] As a subsidiary embodiment of the above embodiment, the matched filtering is a time-domain matched filtering.

[0523] As a subsidiary embodiment of the above embodiment, the matched filtering is a frequency domain matched filtering.

[0524] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channel experienced by the echoes includes: performing de-skewing processing on the echoes using the transmitted physical signals.

[0525] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channel experienced by their echoes includes: mixing the transmitted physical signal and its echo, performing low-pass filtering, and performing sampling processing.

[0526] As a sub-embodiment of the above embodiment, the combination of multiple physical signals and their echoes and the measurement of the wireless channel experienced by their echoes include: mixing the transmitted physical signal and its echo and low-pass filtering, and sampling the received signal on each antenna.

[0527] As a sub-embodiment of the above embodiment, the combination of multiple physical signals and their echoes and the measurement of the wireless channel experienced by their echoes include: mixing the transmitted physical signal and its echo and low-pass filtering, and sampling the received signal on each antenna port.

[0528] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channel experienced by their echoes includes: down-converting the echo of the received physical signal to baseband and performing sampling processing.

[0529] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channel through which their echoes have passed includes: down-converting the echo of the physical signal received on each antenna to baseband and performing sampling processing.

[0530] As a sub-embodiment of the above embodiment, the sampling process is a time-domain sampling process.

[0531] As a sub-embodiment of the above embodiment, the sampling process is a frequency domain sampling process.

[0532] As a sub-embodiment of the above embodiment, the sampling process is a time domain and frequency domain sampling process.

[0533] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channel experienced by their echoes includes: performing DFT or FFT processing on the sampling matrix after the sampling processing.

[0534] As a sub-embodiment of the above embodiment, the sampling matrix is ​​a time-frequency domain sampling result matrix.

[0535] As a sub-embodiment of the above embodiment, the sampling matrix is ​​a time-frequency-antenna domain sampling result matrix.

[0536] As a sub-embodiment of the above embodiment, the sampling matrix is ​​a time-frequency-angle domain sampling result matrix.

[0537] As a sub-embodiment of the above embodiment, the amplitude and phase of each element in the sampling matrix are compensated by the transmission signal.

[0538] As a sub-embodiment of the above embodiment, the amplitude and phase of each element in the sampling matrix are not compensated by the transmission signal.

[0539] As a sub-embodiment of the above embodiment, the DFT or FFT processing is 2D-DFT or 2D-FFT.

[0540] As a sub-embodiment of the above embodiment, the DFT or FFT processing is 3D-DFT or 3D-FFT.

[0541] As a sub-embodiment of the above embodiment, the DFT or FFT processing is to perform DFT or FFT processing in sequence along each dimension of the sampling matrix.

[0542] As a sub-embodiment of the above embodiment, the DFT or FFT processing is performed sequentially along the time dimension, frequency dimension and angle dimension of the sampling matrix.

[0543] As a sub-embodiment of the above embodiment, the DFT or FFT processing is performed sequentially along the symbol dimension, subcarrier dimension and antenna dimension of the sampling matrix.

[0544] As a sub-embodiment of the above embodiment, the DFT or FFT processing is to perform DFT or FFT processing in sequence along the time dimension and the frequency dimension of the sampling matrix.

[0545] As a sub-embodiment of the above embodiment, the DFT or FFT processing is performed sequentially along the symbol dimension and the subcarrier dimension of the sampling matrix.

[0546] As a sub-embodiment of the above embodiment, the order of the DFT or FFT processing in different dimensions can be freely combined.

[0547] As a sub-embodiment of the above embodiment, the number of points processed by the DFT or FFT is related to the number of the perception units.

[0548] As a sub-embodiment of the above embodiment, the number of points processed by the DFT or FFT is related to the size of the sampling matrix.

[0549] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on different dimensions of the sampling matrix is ​​related to the length of the corresponding dimension of the sampling matrix.

[0550] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on different dimensions of the sampling matrix is ​​equal to the length of the corresponding dimension of the sampling matrix.

[0551] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on different dimensions of the sampling matrix is ​​not less than the length of the corresponding dimension of the sampling matrix.

[0552] As a sub-embodiment of the above embodiment, the number of points of DFT or FFT processing performed on different dimensions of the sampling matrix is ​​the smallest positive integer power of 2 that is not less than the length of the corresponding dimension of the sampling matrix.

[0553] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on the time dimension or symbol dimension of the sampling matrix is ​​equal to the length of the time dimension or symbol dimension of the sampling matrix.

[0554] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on the angular dimension or antenna dimension of the sampling matrix is ​​equal to the length of the angular dimension or antenna dimension of the sampling matrix.

[0555] As a sub-embodiment of the above embodiment, the number of points of DFT or FFT processing performed on the frequency dimension or subcarrier dimension of the sampling matrix is ​​the smallest positive integer power of 2 that is not less than the length of the frequency dimension or subcarrier dimension of the sampling matrix.

[0556] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on the frequency dimension or subcarrier dimension of the sampling matrix is ​​1024.

[0557] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on the frequency dimension or subcarrier dimension of the sampling matrix is ​​2048.

[0558] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on the frequency dimension or subcarrier dimension of the sampling matrix is ​​4096.

[0559] As a sub-embodiment of the above embodiment, the number of points of the DFT or FFT processing performed on the frequency dimension or subcarrier dimension of the sampling matrix is ​​8192.

[0560] As a sub-embodiment of the above embodiment, combining multiple physical signals and their echoes and measuring the wireless channel experienced by their echoes includes: coherently accumulating multiple sensing units in the echoes of the physical signals.

[0561] As a sub-embodiment of the above embodiment, the combination of multiple physical signals and their echoes to measure the wireless channel experienced by their echoes includes: using the initial phase of the physical signal to compensate for the phase of the perception unit in the echo, and then performing coherent accumulation processing on the compensated echo perception unit.

[0562] As a sub-embodiment of the above embodiment, the coherent accumulation includes frequency domain coherent accumulation.

[0563] As a sub-embodiment of the above embodiment, the coherent accumulation includes time-domain coherent accumulation.

[0564] As a sub-embodiment of the above embodiment, the coherent integration includes angle-domain coherent integration.

[0565] As a sub-embodiment of the above embodiment, the coherent accumulation includes antenna domain coherent accumulation.

[0566] As an embodiment, the detecting includes: performing target extraction on the echo signal.

[0567] As an embodiment, the detection includes: performing Constant False Alarm Rate (CFAR) processing on the echo signal.

[0568] As an embodiment, the detecting includes: performing clutter suppression processing on the echo signal.

[0569] As an embodiment, the detecting includes: performing target recognition based on the echo signal.

[0570] As an embodiment, the detecting includes: the classification type of the target recognition is predefined.

[0571] As an embodiment, the detection includes: the classification type of the target recognition includes drones.

[0572] As an embodiment, the detection includes: the classification category of the target recognition includes indoor humans.

[0573] As an embodiment, the detection includes: the classification type of the target recognition includes outdoor cars.

[0574] As an embodiment, the detection includes: the classification type of the target recognition includes AGV.

[0575] As an embodiment, the detection includes: the classification type of the target recognition includes unidentified objects on the railway.

[0576] As a sub-embodiment of the above embodiment, the target recognition process relies on a classifier.

[0577] As a sub-embodiment of the above embodiment, the target identification process is implemented by the UE.

[0578] As a sub-embodiment of the above embodiment, the target identification process is implemented by a base station.

[0579] As a sub-embodiment of the above embodiment, the target recognition process relies on a deep neural network.

[0580] As a sub-embodiment of the above embodiment, the target recognition process relies on AI implementation.

[0581] As an embodiment, the different sending directions of the multiple physical signals means that the multiple physical signals are sent using different antenna steering vectors.

[0582] As an embodiment, the different sending directions of the multiple physical signals means that the multiple physical signals are sent using different beamforming directions.

[0583] As an embodiment, the different sending directions of the multiple physical signals means that the multiple physical signals are sent using different beams.

[0584] As an embodiment, the different sending directions of the multiple physical signals means that different precoding matrices are used when sending the multiple physical signals.

[0585] As an embodiment, the multiple physical signals are periodically configured.

[0586] As an embodiment, the multiple physical signals are semi-statically configured.

[0587] As an embodiment, the intervals between the multiple physical signals are configured by high-layer signaling.

[0588] As an embodiment, the angle between the sending directions of the multiple physical signals is configured by high-layer signaling.

[0589] As an embodiment, the transmission power of the multiple physical signals is configured by high-layer signaling.

[0590] As an embodiment, the repetition period and repetition times of the multiple physical signals are configured by high-layer signaling.

[0591] Example 8

[0592] Embodiment 8 illustrates a schematic diagram of the relationship between a third physical signal and echoes of multiple physical signals according to an embodiment of the present application, as shown in FIG8 .

[0593] In the eighth embodiment, the third physical signal is the best physical signal among the echoes of the plurality of physical signals.

[0594] As an embodiment, the third physical signal is the best physical signal among the echoes of the multiple physical signals.

[0595] As an embodiment, the third physical signal is the best X1 physical signals among the echoes of the multiple physical signals; and X1 is an integer greater than 1.

[0596] As an embodiment, the best refers to the best measurement result.

[0597] As an embodiment, the best refers to the one with the largest RSRP.

[0598] As an embodiment, the best refers to the one with the best perceived performance.

[0599] As an embodiment, the best refers to the most matching one.

[0600] As an embodiment, the best refers to the one with the highest correlation.

[0601] As an embodiment, the best physical signal refers to a physical signal whose transmission parameters are most suitable for communicating with the first node, obtained from the echoes of the multiple physical signals.

[0602] As a sub-embodiment of the above embodiment, the transmission parameters refer to wireless transmission parameters for sending multiple physical signals.

[0603] As a sub-embodiment of the above embodiment, the transmission parameters include the sending direction of the physical signal.

[0604] As a sub-embodiment of the above embodiment, the transmission parameters include the transmission power of the physical signal.

[0605] As a sub-embodiment of the above embodiment, the transmission parameters include a precoding matrix of a physical signal.

[0606] As an embodiment, the best physical signal refers to: among the echoes of the multiple physical signals, the physical signal corresponding to the echo having the most obvious influence of the specific target in the sensing result.

[0607] As a sub-embodiment of the above embodiment, the perception result refers to: combining multiple physical signals and their echoes, and measuring the wireless channel experienced by the echoes.

[0608] As a sub-embodiment of the above embodiment, the perception result includes: a perception data matrix of the multiple echoes after pulse compression.

[0609] As a sub-embodiment of the above embodiment, the perception result includes: the sampling matrix of the multiple echoes.

[0610] As a sub-embodiment of the above embodiment, the sensing result includes: a delay-Doppler matrix.

[0611] As a sub-embodiment of the above embodiment, the perception result includes: a distance-speed matrix.

[0612] As a sub-embodiment of the above embodiment, the perception result includes: performing target detection on possible targets.

[0613] As a sub-embodiment of the above embodiment, the perception result includes: target recognition of possible targets.

[0614] As a sub-embodiment of the above embodiment, the perception result includes at least perception of the second node.

[0615] As a sub-embodiment of the above embodiment, the perception result includes at least perception of the second node.

[0616] As a sub-embodiment of the above embodiment, the perception result includes: a plurality of the perception results corresponding to the echoes of the plurality of physical signals, wherein the echo of at least one physical signal corresponds to one perception result.

[0617] As a sub-embodiment of the above embodiment, the perception result includes: a plurality of the perception results corresponding to the echoes of the plurality of physical signals, wherein the echo of each physical signal corresponds to at least one perception result.

[0618] As a sub-embodiment of the above embodiment, the perception result includes: a plurality of the perception results corresponding to the echoes of the plurality of physical signals, wherein the echo of at least one physical signal corresponds to at least one perception result.

[0619] As a sub-embodiment of the above embodiment, the correspondence between the echoes of the multiple physical signals and the multiple perception results is preconfigured.

[0620] As a sub-embodiment of the above embodiment, the correspondence between the echoes of the multiple physical signals and the multiple perception results is predefined.

[0621] As a sub-embodiment of the above embodiment, the correspondence between the echoes of the multiple physical signals and the multiple perception results is implemented by the UE.

[0622] As a sub-embodiment of the above embodiment, the correspondence between the echoes of the multiple physical signals and the multiple perception results is implemented by a base station.

[0623] As a sub-embodiment of the above embodiment, the influence due to a specific target refers to: a component of the physical signal in the echo after being reflected / refracted / diffracted by the specific target.

[0624] As a sub-embodiment of the above embodiment, the specific target is the second node.

[0625] As a sub-embodiment of the above embodiment, the specific target includes the second node.

[0626] As a sub-embodiment of the above embodiment, the specific target is an object carrying the second node.

[0627] As a sub-embodiment of the above embodiment, the determination of the influence of a specific target in the perception result depends on the target detection function.

[0628] As a sub-embodiment of the above embodiment, the determination of the influence of a specific target in the perception result depends on a target recognition function.

[0629] As a sub-embodiment of the above embodiment, the most obvious influence means that the response peak corresponding to the specific target in the perception result is the most obvious.

[0630] As a sub-embodiment of the above embodiment, the most obvious influence means that the corresponding peak corresponding to the specific target in the perception result is the sharpest.

[0631] As a sub-embodiment of the above embodiment, the most obvious influence means that the response peak corresponding to the specific target in the perception result is the largest.

[0632] As a sub-embodiment of the above embodiment, the most obvious influence means that the peak signal-to-noise ratio of the response corresponding to the specific target in the perception result is the highest.

[0633] As a sub-embodiment of the above embodiment, the most obvious influence means that the target detection confidence level corresponding to the specific target in the perception result is the highest.

[0634] As a sub-embodiment of the above embodiment, the echo in the perception result that is most obviously affected by the specific target refers to: the echo corresponding to the perception result that is most obviously affected by the specific target.

[0635] As a sub-embodiment of the above embodiment, the echo in the perception result that is most obviously affected by the specific target refers to: an echo set corresponding to the perception result that is most obviously affected by the specific target.

[0636] As a sub-embodiment of the above embodiment, the physical signal corresponding to the echo that is most obviously affected by the specific target in the perception result refers to: the physical signal corresponding to the echo that is most obviously affected by the specific target in the perception result.

[0637] As a sub-embodiment of the above embodiment, the physical signal corresponding to the echo that is most obviously affected by a specific target in the perception result refers to: the physical signal set corresponding to the echo set corresponding to the perception result that is most obviously affected by the specific target.

[0638] Example 9

[0639] Embodiment 9 illustrates a schematic diagram of determining the third physical signal according to an embodiment of the present application, as shown in FIG9 .

[0640] In embodiment 9, the first node in the present application determines the third physical signal from the echoes of the multiple physical signals in step 901.

[0641] As an embodiment, the third physical signal is the best physical signal among the echoes of the multiple physical signals.

[0642] As an embodiment, as a response to the determination of the third physical signal, the transmission parameters of the first physical signal depend on the reception of the third physical signal.

[0643] As an embodiment, the action determines that the third physical signal is preconfigured.

[0644] As a sub-embodiment of the above embodiment, the determination criterion is configurable.

[0645] As a sub-embodiment of the above embodiment, the determination criterion is predefined.

[0646] As a sub-embodiment of the above embodiment, the determined range is configurable.

[0647] As a sub-embodiment of the above embodiment, the determined range is predefined.

[0648] As an embodiment, the action determines that the third physical signal is predefined.

[0649] As an embodiment, the determination criterion is: the third physical signal is the best physical signal among the echoes of the multiple physical signals.

[0650] As an embodiment, the determining is selecting.

[0651] As an embodiment, the determination is based on an evaluation.

[0652] As an embodiment, the determination is based on measurement results.

[0653] As an embodiment, the determination relies on sensing contextual information.

[0654] As an embodiment, the determination relies on UE location information.

[0655] As an embodiment, the determination relies on UE speed information.

[0656] As an embodiment, the determination relies on map information.

[0657] As an embodiment, the determination relies on area information.

[0658] As an embodiment, the determination depends on time information.

[0659] As an embodiment, the determination relies on sensing assistance information.

[0660] As an embodiment, the determination is made by a higher layer.

[0661] As a sub-embodiment of the above embodiment, the determination is instructed by a higher layer.

[0662] As a sub-embodiment of the above embodiment, after detecting the multiple physical signals, the first information thereof is sent to an upper layer.

[0663] As a sub-embodiment of the above embodiment, the first information is a perception result.

[0664] As a sub-embodiment of the above embodiment, the first information is a measurement result.

[0665] As a sub-embodiment of the above embodiment, the first information is sensing data.

[0666] As a sub-embodiment of the above embodiment, the first information is 3GPP sensing data.

[0667] As a sub-embodiment of the above embodiment, the first information is perception context information.

[0668] As a sub-embodiment of the above embodiment, the first information is perception-assisted information.

[0669] As a sub-embodiment of the above embodiment, the first information includes a perception result.

[0670] As a sub-embodiment of the above embodiment, the first information includes a measurement result.

[0671] As a sub-embodiment of the above embodiment, the first information includes perception data.

[0672] As a sub-embodiment of the above embodiment, the first information includes 3GPP perception data.

[0673] As a sub-embodiment of the above embodiment, the first information includes perception context information.

[0674] As a sub-embodiment of the above embodiment, the first information includes perception assistance information.

[0675] As a sub-embodiment of the above embodiment, the upper layer is a protocol layer above the physical layer.

[0676] As a sub-embodiment of the above embodiment, the upper layer includes at least one protocol layer above the physical layer.

[0677] As a sub-embodiment of the above embodiment, the upper layer includes an application layer.

[0678] As a sub-embodiment of the above embodiment, the upper layer includes a protocol layer above the application layer.

[0679] As a sub-embodiment of the above embodiment, the upper layer includes a perception layer.

[0680] As a sub-embodiment of the above embodiment, the upper layer includes an AI layer.

[0681] As a sub-embodiment of the above embodiment, a notification is received from an upper layer, where the notification indicates the second physical signal.

[0682] As a sub-embodiment of the above embodiment, in response to sending the first information to the upper layer, a notification is received from an upper layer, where the notification indicates the second physical signal.

[0683] As a sub-embodiment of the above embodiment, the first information triggers the notification.

[0684] As a sub-embodiment of the above embodiment, the notification is received after the first information is sent.

[0685] As an embodiment, the determination is made by a perception layer.

[0686] As an embodiment, the determination is made by a physical layer.

[0687] As an embodiment, the determination is made by AI.

[0688] Example 10

[0689] Embodiment 10 illustrates a schematic diagram of the relationship between the third physical signal and the second physical signal according to an embodiment of the present application, as shown in FIG10 .

[0690] In embodiment 10, the reception of the third physical signal depends on the transmission of the second physical signal.

[0691] As an embodiment, the reception of the third physical signal being dependent on the transmission of the second physical signal means that the reception parameters of the third physical signal are dependent on the transmission parameters of the second physical signal.

[0692] As a sub-embodiment of the above embodiment, the dependence of the reception parameter of the third physical signal on the transmission parameter of the second physical signal means that the reception direction of the third physical signal and the transmission direction of the second physical signal are reciprocal / symmetric.

[0693] As a sub-embodiment of the above embodiment, the dependence of the reception parameters of the third physical signal on the transmission parameters of the second physical signal means that when the first node receives the third physical signal, it adopts and sends spatial filtering parameters that are reciprocal / symmetric with the second physical signal.

[0694] As a sub-embodiment of the above embodiment, the dependence of the reception parameters of the third physical signal on the transmission parameters of the second physical signal means that when the first node receives the third physical signal, it adopts an array antenna steering vector that is reciprocal / symmetric with that of sending the second physical signal.

[0695] As a sub-embodiment of the above embodiment, the dependence of the reception parameter of the third physical signal on the transmission parameter of the second physical signal means that the reception time window of the third physical signal depends on the transmission time of the second physical signal.

[0696] As a sub-embodiment of the above embodiment, the dependence of the reception parameter of the third physical signal on the transmission parameter of the second physical signal means that the reception time window of the third physical signal includes the transmission time of the second physical signal.

[0697] As a sub-embodiment of the above embodiment, the dependence of the reception parameter of the third physical signal on the transmission parameter of the second physical signal means that the reception time window of the third physical signal is not earlier than the transmission time of the second physical signal.

[0698] As a sub-embodiment of the above embodiment, the dependence of the reception parameter of the third physical signal on the transmission parameter of the second physical signal means that the reception frequency of the third physical signal depends on the transmission frequency of the second physical signal.

[0699] As a sub-embodiment of the above embodiment, the dependence of the reception parameters of the third physical signal on the transmission parameters of the second physical signal means that the time-frequency resources used to receive the third physical signal depend on the time-frequency resources used to send the second physical signal.

[0700] As a sub-embodiment of the above embodiment, the dependence of the third physical signal reception parameter on the transmission parameter of the second physical signal means that the receiver amplifier gain control parameter for receiving the third physical signal depends on the power of sending the second physical signal.

[0701] As a sub-embodiment of the above embodiment, the dependence of the third physical signal reception parameter on the transmission parameter of the second physical signal means that the receiver amplifier gain control parameter for receiving the third physical signal depends on the time of sending the second physical signal.

[0702] As a sub-embodiment of the above embodiment, the dependence of the third physical signal reception parameter on the transmission parameter of the second physical signal means that the receiver sensitivity for receiving the third physical signal depends on the power of sending the second physical signal.

[0703] As a sub-embodiment of the above embodiment, the dependence of the third physical signal reception parameter on the transmission parameter of the second physical signal means that the receiver sensitivity for receiving the third physical signal depends on the time of sending the second physical signal.

[0704] As an embodiment, the reception of the third physical signal being dependent on the sending of the second physical signal means that the third physical signal is received in response to sending the second physical signal.

[0705] As an embodiment, the reception of the third physical signal depends on the sending of the second physical signal, which means that the third physical signal is an echo of the second physical signal passing through a sensing channel.

[0706] As a sub-embodiment of the above embodiment, the sensing channel includes a channel between the first node transmitter and the sensing target.

[0707] As a sub-embodiment of the above embodiment, the sensing channel includes a reflective surface of the sensing target.

[0708] As a sub-embodiment of the above embodiment, the sensing channel includes a channel between the sensing target and the first node receiver.

[0709] As a sub-embodiment of the above embodiment, the sensing target includes a second node.

[0710] As an embodiment, the reception of the third physical signal being dependent on the sending of the second physical signal means that when the third physical signal is received and the detection is performed, it is dependent on the second physical signal.

[0711] As a sub-embodiment of the above embodiment, the receiving frame of the third physical signal is aligned with the sending frame of the second physical signal.

[0712] As a sub-embodiment of the above embodiment, the sampling timing of the third physical signal depends on the sending frame of the second physical signal.

[0713] As a sub-embodiment of the above embodiment, the compensation performed on the received third physical signal depends on the second physical signal.

[0714] As a sub-embodiment of the above embodiment, when matched filtering is performed on the received third physical signal, it depends on the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0715] As a sub-embodiment of the above embodiment, when matched filtering is performed on the received third physical signal, it depends on the generation sequence of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0716] As a sub-embodiment of the above embodiment, when performing matched filtering on the received third physical signal, it depends on the initial waveform of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0717] As a sub-embodiment of the above embodiment, when performing matched filtering on the received third physical signal, it depends on the baseband signal of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0718] As a sub-embodiment of the above embodiment, the matched filtering of the received third physical signal and the generation of the second physical signal both rely on the same generation sequence, and the third physical signal is a baseband signal that has been down-converted.

[0719] As a sub-embodiment of the above embodiment, the matched filtering of the received third physical signal and the generation of the second physical signal both rely on the same initial waveform, and the third physical signal is a baseband signal that has been down-converted.

[0720] As a sub-embodiment of the above embodiment, the matched filtering of the received third physical signal and the generation of the second physical signal both rely on the same baseband signal, and the third physical signal is a baseband signal that has been down-converted.

[0721] As a sub-embodiment of the above embodiment, when performing a cross-correlation operation on the received third physical signal, it depends on the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0722] As a sub-embodiment of the above embodiment, when performing a cross-correlation operation on the received third physical signal, it depends on the generation sequence of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0723] As a sub-embodiment of the above embodiment, when performing a cross-correlation operation on the received third physical signal, it depends on the initial waveform of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0724] As a sub-embodiment of the above embodiment, when performing a cross-correlation operation on the received third physical signal, it depends on the baseband signal of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0725] As a sub-embodiment of the above embodiment, the cross-correlation operation refers to performing a cross-correlation operation on the third physical signal and the second physical signal.

[0726] As a sub-embodiment of the above embodiment, when pulse compression is performed on the received third physical signal, it depends on the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0727] As a sub-embodiment of the above embodiment, when pulse compression is performed on the received third physical signal, it depends on the generation sequence of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0728] As a sub-embodiment of the above embodiment, when pulse compression is performed on the received third physical signal, it depends on the initial waveform of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0729] As a sub-embodiment of the above embodiment, when pulse compression is performed on the received third physical signal, it depends on the baseband signal of the second physical signal, and the third physical signal is a baseband signal that has been down-converted.

[0730] As a sub-embodiment of the above embodiment, when constant false alarm detection is performed on the third physical signal after pulse compression, the size of a detection cell under test depends on the second physical signal.

[0731] As a sub-embodiment of the above embodiment, the time length of the detection unit depends on the time length of the frame structure of the second physical signal.

[0732] As a sub-embodiment of the above embodiment, the time length refers to the length in the delay domain.

[0733] As a sub-embodiment of the above embodiment, the frequency length of the detection unit depends on the frequency interval of the frame structure of the second physical signal.

[0734] As a sub-embodiment of the above embodiment, the frequency length refers to the length in the Doppler domain.

[0735] As a sub-embodiment of the above embodiment, the size of the angular domain of the detection unit depends on the number of transmitting and receiving antennas of the first node.

[0736] As a sub-embodiment of the above embodiment, the constant false alarm detection includes a convolution operation.

[0737] Example 11

[0738] Example 11 illustrates a schematic diagram of the differences and similarities in waveforms between a first physical signal and a second physical signal according to an embodiment of the present application, as shown in FIG11 .

[0739] In embodiment 11, the first physical signal uses a first waveform, and the second physical signal uses a second waveform; the first waveform and the second waveform are different.

[0740] As an embodiment, the first waveform is OFDM, and the second waveform is FBMC.

[0741] As an embodiment, the first waveform is OFDM and the second waveform is UFMC.

[0742] As an embodiment, the first waveform is OFDM and the second waveform is GFDM.

[0743] As an embodiment, the first waveform is OFDM and the second waveform is NOMA.

[0744] As an embodiment, the first waveform is OFDM, and the second waveform is OTFS.

[0745] As an embodiment, the first waveform is OFDM, and the second waveform is FMCW.

[0746] As an embodiment, the first waveform is OFDM, and the second waveform is LFMCW.

[0747] As an embodiment, the first waveform is CP-OFDM, and the second waveform is DFT-S-OFDM.

[0748] As an embodiment, the first waveform is DFT-S-OFDM, and the second waveform is CP-OFDM.

[0749] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, and both the first waveform and the second waveform use OFDM modulation, wherein the second waveform is baseband precoded and the first waveform is not baseband precoded.

[0750] As a sub-embodiment of the above embodiment, the baseband precoding is an inverse finite sigmoid Fourier transform (ISFFT).

[0751] As a sub-embodiment of the above embodiment, the baseband precoding refers to modulating specific amplitude and phase values ​​on specific subcarriers and specific symbols according to a specific rule.

[0752] As a subsidiary embodiment of the above sub-embodiment, the specific rule is for constructing the autocorrelation of the second physical signal.

[0753] As a subsidiary embodiment of the above sub-embodiment, the specific rule is to construct the similarity between the second physical signal and the frequency modulation wave.

[0754] As a subsidiary embodiment of the above sub-embodiment, the specific rule is related to the OFDM symbol sequence number.

[0755] As a subsidiary embodiment of the above sub-embodiment, the specific rule is related to the OFDM subcarrier sequence number.

[0756] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, and both the first waveform and the second waveform use OFDM modulation, wherein the second waveform contains a perception frame, and the first waveform does not contain a perception frame.

[0757] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the second waveform contains a perception time slot, and the first waveform does not contain a perception time slot.

[0758] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the second waveform contains perception symbols, and the first waveform does not contain perception symbols.

[0759] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the second waveform contains a perception subcarrier, and the first waveform does not contain a perception subcarrier.

[0760] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the second waveform contains a perceptual RS and the first waveform does not contain a perceptual RE.

[0761] As an embodiment, the first waveform is different from the second waveform in that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the proportion of perception frames contained in the first waveform and the second waveform is different.

[0762] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, and both the first waveform and the second waveform use OFDM modulation, wherein the proportion of perception time slots contained in the first waveform and the second waveform is different.

[0763] As an embodiment, the first waveform is different from the second waveform in that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the proportion of perceptual symbols contained in the first waveform and the second waveform is different.

[0764] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the proportion of perceptual subcarriers contained in the first waveform and the second waveform is different.

[0765] As an embodiment, the difference between the first waveform and the second waveform means that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, both the first waveform and the second waveform use OFDM modulation, wherein the proportion of perceptual subcarriers RE contained in the first waveform and the second waveform is different.

[0766] As an embodiment, the first waveform is different from the second waveform in that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, and the first waveform and the second waveform both use the same modulation method, wherein the first waveform is dedicated to communication and the second waveform is used for communication and perception.

[0767] As an embodiment, the first waveform is different from the second waveform in that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, and the first waveform and the second waveform both use the same modulation method, wherein the first waveform is used for communication and perception, and the second waveform is dedicated to perception.

[0768] As an embodiment, the first waveform is different from the second waveform in that the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, and the first waveform and the second waveform both use the same modulation method, wherein the first waveform is dedicated to communication and the second waveform is dedicated to perception.

[0769] As an embodiment, the first physical signal adopts the first waveform, the second physical signal adopts the second waveform, and the first waveform and the second waveform both use the same modulation method, wherein the first waveform and the second waveform are both used for communication and perception.

[0770] Example 12

[0771] Embodiment 12 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG12. In FIG12, a first processor 1200 in the first node includes a first transmitter 1201 and a first receiver 1202.

[0772] The first transmitter 1201 sends a first physical signal; sends a second physical signal;

[0773] The first receiver 1202 receives a third physical signal in response to the second physical signal being sent, where the third physical signal is an echo of the second physical signal;

[0774] In embodiment 12, the first physical signal is received at a second node, which is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0775] As an embodiment, the transmission power of the first physical signal is related to a first path loss, and the first path loss depends on the reception of the third physical signal.

[0776] As an embodiment, the first processor 1200 sends multiple physical signals; in response to the multiple physical signals being sent, detects echoes of the multiple physical signals; wherein the multiple physical signals are sent in different directions; and the second physical signal is one of the multiple physical signals.

[0777] As an embodiment, the third physical signal is the best physical signal among the echoes of the multiple physical signals.

[0778] As an embodiment, the first processor 1200 determines the third physical signal from the echoes of the multiple physical signals.

[0779] As an embodiment, the reception of the third physical signal depends on the sending of the second physical signal.

[0780] As an embodiment, the first physical signal adopts a first waveform, and the second physical signal adopts a second waveform; the first waveform and the second waveform are different.

[0781] As an embodiment, the first receiver 1202 includes at least one of the antenna 452 or the receiver 454 or the multi-antenna receiving processor 458 or the receiving processor 456 or the controller / processor 459 or the memory 460 or the data source 467 in FIG. 4 of the present application.

[0782] As an embodiment, the first receiver 1202 includes at least the antenna 452 and the receiver 454 in FIG. 4 of the present application.

[0783] As an embodiment, the first transmitter 1201 includes at least one of the antenna 452 or transmitter 454 or multi-antenna transmission processor 457 or transmission processor 468 or controller / processor 459 or memory 460 or data source 467 in FIG4 of the present application.

[0784] As an embodiment, the first transmitter 1201 includes at least the antenna 452 and the transmitter 454 in FIG. 4 of the present application.

[0785] Example 13

[0786] Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG13. In FIG13, the processing device 1300 in the second node includes a second transmitter 1301 and a second receiver 1302.

[0787] The second receiver 1302 receives a first physical signal;

[0788] In embodiment 13, the sender of the first physical signal sends a second physical signal; in response to the sending of the second physical signal, the sender of the first physical signal receives a third physical signal, and the third physical signal is an echo of the second physical signal; the second node is not the first node; the sending parameters of the first physical signal depend on at least the reception of the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

[0789] As an embodiment, the transmission power of the first physical signal is related to a first path loss, and the first path loss depends on the reception of the third physical signal.

[0790] As an embodiment, the sender of the first physical signal sends multiple physical signals; as a response to the multiple physical signals being sent, the echo of the multiple physical signals is detected; wherein the sending directions of the multiple physical signals are different; and the second physical signal is one of the multiple physical signals.

[0791] As an embodiment, the third physical signal is the best physical signal among the echoes of the multiple physical signals.

[0792] As an embodiment, the sender of the first physical signal determines the third physical signal from the echoes of the multiple physical signals.

[0793] As an embodiment, the reception of the third physical signal depends on the sending of the second physical signal.

[0794] As an embodiment, the first physical signal adopts a first waveform, and the second physical signal adopts a second waveform; the first waveform and the second waveform are different.

[0795] As an embodiment, the second transmitter 1301 includes at least one of the antenna 420 or the transmitter 418 or the multi-antenna transmission processor 471 or the transmission processor 416 or the controller / processor 475 or the memory 476 in FIG. 4 of the present application.

[0796] As an embodiment, the second transmitter 1301 includes at least the antenna 420 and the transmitter 418 in FIG. 4 of the present application.

[0797] As an embodiment, the second receiver 1302 includes at least one of the antenna 420 or the receiver 418 or the multi-antenna receiving processor 472 or the receiving processor 470 or the controller / processor 475 or the memory 476 in FIG. 4 of the present application.

[0798] As an embodiment, the second receiver 1302 includes at least the antenna 420 and the receiver 418 in FIG. 4 of the present application.

[0799] Example 14

[0800] Embodiment 14 illustrates a schematic diagram of an artificial intelligence processing system according to another embodiment of the present application, as shown in FIG14. FIG14 includes a first module, a second module, a third module, a fourth module and a fifth module.

[0801] In Example 14, the first module sends a first data set to the second module, the first module sends a second data set to the third module, the first module sends a third data set to the fifth module, the fifth module sends a first type parameter group to the second module, the fifth module sends a second type parameter group to the third module, the fifth module sends a third type parameter group to the fourth module, the second module sends a fourth type parameter group to the fourth module, and the fourth module sends a fifth type parameter group to the third module.

[0802] As an embodiment, the first module, the second module, the third module, the fourth module and the fifth module all belong to the first node.

[0803] The above method avoids air interface signaling interaction and shortens transmission delay.

[0804] As an embodiment, any module among the first module, the second module, the third module, the fourth module and the fifth module does not belong to the first node.

[0805] The above method reduces the hardware complexity of the first node.

[0806] As an embodiment, at least the first module among the first module, the second module, the third module, the fourth module and the fifth module belongs to the first node; and at least one module among the first module, the second module, the third module, the fourth module and the fifth module does not belong to the first node.

[0807] The above method balances the hardware complexity and transmission delay of the first node.

[0808] As an embodiment, the first module is used for data collection.

[0809] As an embodiment, the first module is responsible for data collection.

[0810] As an embodiment, the first module has a data collection function.

[0811] As an embodiment, the second module is used for model training.

[0812] As an embodiment, the second module is responsible for model training.

[0813] As an embodiment, the second module has a model training function.

[0814] As an embodiment, the second module performs AI / ML model training.

[0815] As an embodiment, the second module performs validation.

[0816] As an embodiment, the second module performs testing.

[0817] As an embodiment, the second module generates model performance metrics.

[0818] As an embodiment, the second module is responsible for data preparation.

[0819] As an embodiment, the data preparation includes at least one of data pre-processing, cleaning, formatting, or transformation.

[0820] As an embodiment, the third module is used for inference.

[0821] As an embodiment, the third module has a reasoning function.

[0822] As an embodiment, the third module is responsible for reasoning.

[0823] As an embodiment, the fourth module is used for model storage.

[0824] As an embodiment, the fourth module has a model storage function.

[0825] As an embodiment, the fourth module is responsible for storing the trained model.

[0826] As an embodiment, the fourth module is responsible for storing trained models that can be used to perform reasoning processing.

[0827] As an embodiment, the fifth module is used for management.

[0828] As an embodiment, the fifth module is responsible for management.

[0829] As an embodiment, the fifth module has a management function.

[0830] As an embodiment, the first data set is training data.

[0831] As an embodiment, the second data set is inference data.

[0832] As an embodiment, the third data set is monitoring data.

[0833] As an embodiment, the first parameter group includes monitoring output.

[0834] As an embodiment, the second type of parameter group includes management instructions.

[0835] As an embodiment, the second type of parameter group is used for fine-tuning of the inference function.

[0836] As an embodiment, the second type of parameter group includes an identifier of the model.

[0837] As an embodiment, the second type of parameter group is used to select a model.

[0838] As an embodiment, the second type of parameter group is used for switching models.

[0839] As an embodiment, the second type of parameter group is used to activate / deactivate the model.

[0840] As an embodiment, the second type of parameter group is used to fall back from AI-ML operation to non-AI-ML operation.

[0841] As an embodiment, the third type of parameter group includes a model transfer request (Model Transfer Request).

[0842] As an embodiment, the third parameter group includes a model delivery request (Model Delivery Request).

[0843] As an embodiment, the fourth parameter group includes a trained model (Trained Model).

[0844] As an embodiment, the fourth parameter group includes an updated model (Updated Model).

[0845] As an embodiment, the fourth type of parameter group indicates the identification of the model.

[0846] As an embodiment, the fifth parameter group includes model transfer.

[0847] As an embodiment, the fifth parameter group includes model delivery.

[0848] As an embodiment, the fifth type of parameter group indicates the identification of the model.

[0849] As an embodiment, the first type of output includes a monitoring output.

[0850] As an embodiment, the first type of output exists.

[0851] As an embodiment, the first type of output does not exist.

[0852] As an embodiment, the second type of output includes inference output.

[0853] As an embodiment, the second type of output is used by the fifth module to monitor the performance of the AI / ML model.

[0854] As an embodiment, the second type of output is used by the fifth module to monitor the performance of the AI / ML function.

[0855] As an embodiment, the second type of output exists.

[0856] As an embodiment, the second type of output does not exist.

[0857] As an embodiment, the artificial intelligence processing system generates or assists in generating at least one of the results of detecting the echoes of the multiple physical signals or the results of parameter estimation of the targets detected by the multiple physical signal echoes or the results of identifying the second node or the results of determining the third physical signal or the results of determining the second physical signal.

[0858] As an embodiment, the fifth module generates or assists in generating at least one of the results of detecting the echoes of the multiple physical signals or the results of parameter estimation of the targets detected by the multiple physical signal echoes or the results of identifying the second node or the results of determining the third physical signal or the results of determining the second physical signal.

[0859] As an embodiment, the third module generates or assists in generating at least one of the results of detecting the echoes of the multiple physical signals or the results of parameter estimation of the targets detected by the multiple physical signal echoes or the results of identifying the second node or the results of determining the third physical signal or the results of determining the second physical signal.

[0860] As an embodiment, the second type of output includes at least one of the results of detection of the echoes of the multiple physical signals or the results of parameter estimation of the targets detected by the multiple physical signal echoes or the results of identification of the second node or the results of determination of the third physical signal or the results of determination of the second physical signal.

[0861] As an embodiment, at least one of the first data set or the second data set includes the perception result.

[0862] As an embodiment, at least one of the first data set or the second data set includes the sampling matrix.

[0863] As an embodiment, at least one of the first data set or the second data set includes the second physical signal.

[0864] As an embodiment, at least one of the first data set or the second data set includes the third physical signal.

[0865] As an embodiment, at least one of the first data set or the second data set includes the multiple physical signals.

[0866] As an embodiment, at least one of the first data set or the second data set includes echoes of the multiple physical signals.

[0867] As an embodiment, at least one of the first data set, the second data set, or the third data set includes the perception result.

[0868] As an embodiment, at least one of the first data set, the second data set, or the third data set includes the sampling matrix.

[0869] As an embodiment, at least one of the first data set, the second data set, or the third data set includes the second physical signal.

[0870] As an embodiment, at least one of the first data set, the second data set, or the third data set includes the third physical signal.

[0871] As an embodiment, at least one of the first data set, the second data set, or the third data set includes the multiple physical signals.

[0872] As an embodiment, at least one of the first data set, the second data set, or the third data set includes echoes of the multiple physical signals.

[0873] As an embodiment, the embodiment 14 is only used to illustrate that the present application can be used in an artificial intelligence processing system. This embodiment does not limit the application of the present application to non-artificial intelligence processing systems. Moreover, this embodiment does not limit the application of the present application to other types of artificial intelligence processing systems to achieve an effect equivalent to that of the artificial intelligence processing system shown in Figure 14.

[0874] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR node B) NR node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0875] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A first node used for wireless communication, characterized in that: include: A first transmitter sends a first physical signal; sending a second physical signal; A first receiver receives a third physical signal as a response to the second physical signal being sent, wherein the third physical signal is an echo of the second physical signal; The first physical signal is received at a second node, and the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; and the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

2. The first node according to claim 1, characterized in that: The transmission power of the first physical signal is related to a first path loss, and the first path loss depends on the reception of the third physical signal.

3. The first node according to claim 1 or 2, characterized in that: include: The first processor sends a plurality of physical signals; in response to the plurality of physical signals being sent, detects echoes of the plurality of physical signals; The multiple physical signals are sent in different directions; and the second physical signal is one of the multiple physical signals.

4. The first node according to claim 3, characterized in that: The third physical signal is the best physical signal among the echoes of the multiple physical signals.

5. The first node according to claim 3 or 4, characterized in that: include: The first processor determines the third physical signal from the echoes of the multiple physical signals.

6. The first node according to any one of claims 1 to 5, characterized in that: The receiving of the third physical signal is dependent on the sending of the second physical signal.

7. The first node according to any one of claims 1 to 6, characterized in that: The first physical signal uses a first waveform, and the second physical signal uses a second waveform; the first waveform and the second waveform are different.

8. A second node used for wireless communication, characterized in that: include: A second receiver receives the first physical signal; Wherein, the sender of the first physical signal sends a second physical signal; In response to the second physical signal being sent, the sender of the first physical signal receives a third physical signal, and the third physical signal is an echo of the second physical signal; the second node is not the first node; the sending parameters of the first physical signal depend on at least the reception of the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

9. A method in a first node for wireless communication, characterized in that: include: sending a first physical signal; sending a second physical signal; receiving, in response to the second physical signal being sent, a third physical signal, the third physical signal being an echo of the second physical signal; The first physical signal is received at a second node, and the second node is not the first node; the sending parameters of the first physical signal depend on the reception of at least the third physical signal; and the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

10. A method in a second node for wireless communication, characterized in that: include: receiving a first physical signal; Among them, the sender of the first physical signal sends a second physical signal; as a response to the sending of the second physical signal, the sender of the first physical signal receives a third physical signal, and the third physical signal is an echo of the second physical signal; the second node is not the first node; the sending parameters of the first physical signal depend on at least the reception of the third physical signal; the sending parameters of the first physical signal include at least one of the sending direction or the sending power.

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