Method and apparatus used in node for wireless communication signal transmission

Abstract

The present application discloses a method and apparatus used in a node for wireless communication signal transmission. A first node receives first signaling, the first signaling indicating a first resource unit set; and the first node receives a first signal in a first multi-carrier symbol. Part of the first signal in a resource unit other than the first resource unit set carries communication information, and the value of a symbol transmitted on a resource unit in the first resource unit set depends on a first waveform. The present application sets forth an integrated sensing and communication waveform design based on orthogonal frequency domain resources, can support integrated sensing and communication technology with relatively low costs in modifying an existing network, and completes the fusion of communication and sensing while reducing interference after integration of communication and sensing.

Description

A method and device for use in a node for wireless communication signal transmission Technical Field

[0001] The present application relates to a transmission method and apparatus for signal transmission in a wireless communication system, and in particular to a method and apparatus for signal waveform. Background Art

[0002] With the development of mobile communications, especially the application of 5G active antenna arrays, the architectures of communication and perception systems are converging, and the trend toward integrated communication and perception capabilities within networks is becoming increasingly evident. Integrated communication and perception technology, also known as Integrated Sensing and Communication (ISAC), achieves unified design of communication and perception functions through joint air interface and protocol design, time-frequency and space resource reuse, and hardware device sharing. This enables wireless networks to deliver high-quality communication while simultaneously achieving high-precision and refined perception, thereby improving the system's spectral, energy, and hardware efficiency, achieving integration gain. Furthermore, through mutual assistance and collaboration between communication and perception functions, the performance of each can be enhanced, resulting in coordination gain.

[0003] In the 5G Rel-18 (Release-18) phase, 3GPP (the 3rd Generation Partnership Project) SA1 (Services & Systems Aspects 1) has carried out extensive and comprehensive research on ISAC scenario use cases. In June 2023, the 3GPP SA#100 plenary meeting adopted the Feasibility Study on Integrated Sensing and Communication Technical Report (TR) 22.837 (Rel-19), which describes 32 use cases in three scenarios supported by ISAC: object detection and tracking, environment monitoring, and motion monitoring. In December 2023, the 3GPP RAN (Radio Access Network) #102 plenary meeting adopted the SI (Study on channel modelling for Integrated Sensing And Communication (ISAC) for NR). In the Rel-19 phase, the RAN1 working group will also aim to support object detection and tracking scenarios, using the channel model in 38.901 as a starting point to lead research on ISAC channel modeling. ISAC is considered a key potential technology development direction and one of the six main application scenarios in the 6G phase. Summary of the Invention

[0004] The core issue in synaesthesia integration is integrated waveform design, that is, designing a dual-function transmission waveform that enables it to have high-precision perception capabilities while performing high-speed communication. The current waveform design for synaesthesia integration is generally divided into two categories: waveform design based on orthogonal resource allocation and waveform design based on resource reuse. However, due to the strong specificity of communication waveforms and perception waveforms, integrated waveform design still faces the challenge of trade-off optimization between scenarios, performance and hardware complexity.

[0005] In response to the above problems, the present application discloses a solution. It should be noted that, in the description of the above problem, the NR (New Radio) system is used as an example. The present application is also applicable to scenarios such as the future 6G system, achieving technical effects similar to the NR system. Furthermore, although the original intention of the present application is to target the ISAC scenario, the present application can also be applied to other non-ISAC scenarios. Furthermore, adopting a unified design solution for different scenarios (such as other non-ISAC scenarios, including but not limited to vehicle to everything (V2X), sidelink (SL), RIS (Reconfigurable Intelligent Surface), NCR (Network Control Repeater) capacity enhancement system, short-range communication system, NTN (Non Terrestrial Network), IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) network, etc.) can also help reduce hardware complexity and cost. In the absence of conflict, the embodiments and features of any node in the present application can be applied to any other node. In the absence of conflict, the embodiments of the present application and the features in the embodiments may be combined with each other in any manner.

[0006] In particular, for the interpretation of terminology, nouns, functions, and variables in this application (unless otherwise specified), reference may be made to the definitions in the TS38 series and TS37 series of the 3GPP Technical Specifications (TS). If necessary, reference may be made to TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, and TS38.423 in the 3GPP Technical Standards to assist in understanding this application.

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

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

[0009] As an example, the interpretation of the terms in this application refers to the definitions of the TS40 series of specification protocols of 3GPP.

[0010] As an example, the interpretation of the terms in this application refers to the definitions of the 3GPP specification protocol TS39 series.

[0011] The present application discloses a method in a first node for wireless communication signal transmission, which includes:

[0012] receiving first signaling indicating a first set of resource elements; receiving a first signal in a first multi-carrier symbol;

[0013] Part of the first signal in resource units outside the first resource unit set carries communication information, and the values ​​of symbols transmitted on the resource units in the first resource unit set depend on the first waveform.

[0014] As an embodiment, the problem to be solved by the present application includes: how to determine the portion of the first signal carrying communication information in the first multi-carrier symbol.

[0015] As an embodiment, the characteristics of the above method include: in this application, the first node obtains a first resource unit set by receiving a first signaling, and the first signal carries communication information in part of the resource units outside the first resource unit set, thereby solving the above problem.

[0016] As an embodiment, the problem to be solved by the present application includes: how to determine the value of the symbol of the first signal transmitted on the first resource set.

[0017] As an embodiment, the characteristics of the above method include: in this application, the above problem is solved by making the values ​​of the symbols transmitted on the resource units in the first resource unit set depend on the first waveform.

[0018] As an embodiment, the problems to be solved by the present application include: integrated waveform design in ISAC.

[0019] As an embodiment, the characteristics of the above method include: the integrated waveform of the ISAC in this application is designed based on orthogonal frequency domain resources, and frequency domain resources are allocated to the parts of the first signal that carry communication information and those that do not carry communication information, respectively, thereby solving the above problem.

[0020] As an embodiment, the characteristics of the above method include: the first signal is used for communication and perception at the same time.

[0021] As an embodiment, the characteristics of the above method include: the frequency domain resources used by the first signal for communication and the frequency domain resources used for sensing are orthogonal.

[0022] As an embodiment, the characteristics of the above method include: the part of the first signal located in the first resource unit set carries perception information.

[0023] As an embodiment, the characteristics of the above method include: the frequency domain resources occupied by the first resource unit set on a multi-carrier symbol may be discontinuous.

[0024] As an embodiment, the characteristics of the above method include: when the number of resource units included in the first resource unit set is 0, all of the first signals are used for communication, thereby achieving fallback from the ISAC system to the communication system.

[0025] As an embodiment, the benefits of the above method include: this application supports ISAC technology, and the wireless network can achieve high-precision and refined perception functions while performing high-quality communication interactions, thereby improving the system's spectrum efficiency, energy efficiency and hardware efficiency, and thereby obtaining integration gain and collaborative gain.

[0026] As an embodiment, the benefits of the above method include: achieving a flexible trade-off between communication performance and perception performance.

[0027] As an embodiment, the benefits of the above method include: making the value of the symbol transmitted in the resource unit depend on the waveform used in the actual transmission, which is beneficial to the expansion of the waveform in the network design and is compatible with multiple integrated waveform designs.

[0028] As an embodiment, the benefits of the above method include: achieving integration between the communication network and the perception network while making relatively minor changes to the current standard, thereby reducing the cost of changing the existing network.

[0029] As an embodiment, the benefits of the above method include: improving transmission efficiency.

[0030] According to one aspect of the present application, the above method is characterized in that the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the first waveform.

[0031] As an embodiment, the characteristics of the above method include: when the time domain resources occupied in the first resource unit set are concerned, the frequency domain position of the resource unit of the first multi-carrier symbol depends on the first waveform.

[0032] As an embodiment, the characteristics of the above method include: the functional accuracy of radar perception is based on the accuracy of delay and Doppler estimation, the frequency domain resource positions occupied by the first resource set in different carrier symbols are different, and the occupied frequency domain positions in a given multi-carrier symbol in this application rely on an integrated waveform design to improve the accuracy of radar perception.

[0033] As an embodiment, the advantages of the above method include: easy implementation.

[0034] As an embodiment, the benefits of the above method include: ensuring the accuracy of the radar sensing function.

[0035] As an embodiment, the benefits of the above method include: improving communication spectrum utilization.

[0036] According to one aspect of the present application, the above method is characterized in that the part of the first signal in the first resource unit set carries a perception signal.

[0037] As an embodiment, the problem to be solved by the present application includes: how to realize the perception function of the first signal.

[0038] As an embodiment, the characteristics of the above method include: the present application solves the above problem by making the part of the first signal located in the first resource unit set carry a perception signal to realize the perception function of the first signal.

[0039] As an embodiment, the characteristics of the above method include: a portion of the first signal in the first resource set is used for sensing.

[0040] As an embodiment, the characteristics of the above method include: the first signal is used for communication and perception at the same time.

[0041] As an embodiment, the advantages of the above method include: easy implementation.

[0042] As an embodiment, the benefits of the above method include: achieving integration between the communication network and the perception network while making relatively minor changes to the current standard, thereby reducing the cost of changing the existing network.

[0043] As an embodiment, the benefits of the above method include: achieving fusion between communication and perception, and reducing interference after the fusion of communication and perception.

[0044] As an embodiment, the benefits of the above method include: achieving an integrated waveform design of ISAC.

[0045] According to one aspect of the present application, the above method is characterized in that the portion of the first signal in the first resource element set is used as a reference signal for symbols of the first signal on resource elements outside the first resource element set.

[0046] As an embodiment, the characteristics of the above method include: part of the first signal in the first resource unit set is used for sensing, and at the same time, part of the first signal in the first resource unit set is used as a reference signal for a communication signal.

[0047] As an embodiment, the characteristics of the above method include: a portion of the first signal in the first resource unit set is used for sensing and channel estimation.

[0048] As an embodiment, the characteristics of the above method include: a portion of the first signal in the first resource unit set is used as a sensing and demodulation reference.

[0049] As an embodiment, the benefits of the above method include: improving spectrum efficiency.

[0050] As an embodiment, the benefits of the above method include: improving the anti-interference capability of the communication signal.

[0051] As an embodiment, the benefits of the above method include: enhancing the transmission performance of the communication system.

[0052] According to one aspect of the present application, the above method is characterized in that the first signaling indicates that the first resource unit set includes all resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is used for sensing.

[0053] As an embodiment, the problem to be solved by this application includes: how to implement fallback from ISAC to a full-sensing system.

[0054] As an embodiment, the characteristics of the above method include: the present application indirectly indicates that the first signal is used for perception by indicating through the first signaling that the first resource unit set includes all resource units included in the first multi-carrier symbol, thereby realizing the fallback from ISAC to a full perception system, thereby solving the above problem.

[0055] As an embodiment, the characteristics of the above method include: the cyclic prefix in the current OFDM system can avoid inter-carrier interference and inter-symbol interference caused by the multipath effect, but at the same time it will cause the energy utilization of the perception system to decrease, making it easy to perceive false targets, thereby reducing the perception performance. Therefore, in this application, the cyclic prefix is ​​not included when the first signal is used for perception to improve the perception performance.

[0056] As an embodiment, the characteristics of the above method include: the present application can implement an integrated waveform design of an ISAC based on orthogonal time domain resources.

[0057] As an embodiment, the benefits of the above method include: the first signal does not include a cyclic prefix, which is beneficial to improving energy utilization and reducing the false alarm probability in radar perception.

[0058] As an embodiment, the benefits of the above method include: the first signal may include a blank protection interval, which can combat multipath effects while avoiding the appearance of false targets introduced by the cyclic prefix, and effectively prevent inter-carrier interference and inter-symbol interference.

[0059] As an embodiment, the benefits of the above method include: achieving fallback from ISAC to a fully perceptive system.

[0060] As an embodiment, the benefits of the above method include: improving the perception performance of the perception signal transmitted based on the communication system.

[0061] According to one aspect of the present application, the above method is characterized in that the first signaling indicates the first waveform from M1 candidate waveforms, and M1 is a positive integer greater than 1.

[0062] As an embodiment, the problem to be solved by the present application includes: how the first node determines the first waveform.

[0063] As an embodiment, the characteristics of the above method include: the present application indicates the first waveform from M1 candidate waveforms through the first signaling, thereby solving the above problem.

[0064] As an embodiment, the characteristics of the above method include: the multiple candidate waveforms are RRC configured, or the multiple candidate waveforms are predefined.

[0065] As an embodiment, the characteristics of the above method include: the first signaling is dynamic signaling, and the dynamic signaling indicates the waveform, so that a waveform with better communication performance or better perception performance can be selected based on different communication and perception requirements in different scenarios.

[0066] As an embodiment, the benefits of the above method include: being facilitating adaptation to rapidly changing environments and meeting different requirements for communication and perception in different environments.

[0067] As an embodiment, the benefits of the above method include: better realization of communication perception integration.

[0068] As an embodiment, the benefits of the above method include: improving spectrum efficiency.

[0069] According to one aspect of the present application, the above method is characterized in that the value of the symbol transmitted on the resource unit in the first resource unit set is determined by FFT transformation of the first waveform.

[0070] As an embodiment, the problem to be solved by the present application includes: how to determine the value of the symbol transmitted on the resource unit in the first resource unit set.

[0071] As an embodiment, the problems to be solved by the present application include: the numerical values ​​of the symbols transmitted on the resource units in the first resource unit set in the present application are determined by FFT transformation of the first waveform, thereby solving the above problems.

[0072] As an embodiment, the characteristics of the above method include: FFT transformation converts the time domain signal of the first waveform into a frequency domain signal, thereby realizing ISAC integrated waveform design based on orthogonal frequency domain resources.

[0073] As an embodiment, the characteristics of the above method include: the resource unit in the first resource unit set corresponds to a complex-valued symbol.

[0074] As an embodiment, the characteristics of the above method include: the first resource unit set includes K1 resource units, and the largest K1 complex values ​​obtained after the first waveform is transformed by FFT correspond to the K1 resource units.

[0075] As an embodiment, the benefits of the above method include: achieving ISAC integrated waveform design based on orthogonal frequency domain resources.

[0076] As an embodiment, the advantages of the above method include: easy implementation and low cost of modifying the existing network.

[0077] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0078] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0079] The present application discloses a method in a second node used for wireless communication signal transmission, which includes:

[0080] Sending first signaling, where the first signaling indicates a first set of resource units; sending a first signal in a first multi-carrier symbol;

[0081] Part of the first signal in resource units outside the first resource unit set carries communication information, and the values ​​of symbols transmitted on the resource units in the first resource unit set depend on the first waveform.

[0082] According to one aspect of the present application, the above method is characterized in that the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the first waveform.

[0083] According to one aspect of the present application, the above method is characterized in that the part of the first signal in the first resource unit set carries a perception signal.

[0084] According to one aspect of the present application, the above method is characterized in that the portion of the first signal in the first resource element set is used as a reference signal for symbols of the first signal on resource elements outside the first resource element set.

[0085] According to one aspect of the present application, the above method is characterized in that the first signaling indicates that the first resource unit set includes all resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is used for sensing.

[0086] According to one aspect of the present application, the above method is characterized in that the first signaling indicates the first waveform from M1 candidate waveforms, and M1 is a positive integer greater than 1.

[0087] According to one aspect of the present application, the above method is characterized in that the value of the symbol transmitted on the resource unit in the first resource unit set is determined by FFT transformation of the first waveform.

[0088] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0089] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0090] According to one aspect of the present application, the above method is characterized in that the second node is a serving cell.

[0091] According to one aspect of the present application, the above method is characterized in that the second node is a serving cell of the first node.

[0092] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0093] The present application discloses a device for a first node used for wireless communication signal transmission, comprising:

[0094] A first receiver receives first signaling indicating a first set of resource units; and receives a first signal in a first multi-carrier symbol.

[0095] Part of the first signal in resource units outside the first resource unit set carries communication information, and the values ​​of symbols transmitted on the resource units in the first resource unit set depend on the first waveform.

[0096] The present application discloses a device for a second node used for wireless communication signal transmission, comprising:

[0097] A first transmitter sends a first signaling indicating a first set of resource units; and sends a first signal in a first multi-carrier symbol.

[0098] Part of the first signal in resource units outside the first resource unit set carries communication information, and the values ​​of symbols transmitted on the resource units in the first resource unit set depend on the first waveform.

[0099] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0100] This application supports ISAC technology. While wireless networks are performing high-quality communication interactions, they can achieve high-precision and refined perception functions, thereby improving the system's spectrum efficiency, energy efficiency, and hardware efficiency, thereby achieving integration gain and collaborative gain.

[0101] It can achieve the integration of communication networks and perception networks while making minor changes to current standards, thus reducing the cost of modifying the existing network.

[0102] It is conducive to adapting to rapidly changing environments and meeting different requirements for communication and perception in different environments;

[0103] The fallback from ISAC to a full perception system or a full communication system can be achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0104] 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:

[0105] FIG1 shows a flow chart of first node transmission according to an embodiment of the present application;

[0106] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0107] 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;

[0108] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0109] FIG5 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0110] FIG6 shows a schematic diagram of a first resource unit set according to an embodiment of the present application;

[0111] FIG7 shows a first schematic diagram of a portion of a first signal in a first set of resource units according to an embodiment of the present application;

[0112] FIG8 shows a second schematic diagram of a portion of a first signal in a first set of resource units according to an embodiment of the present application;

[0113] FIG9 is a schematic diagram showing that the first signal is used for sensing according to an embodiment of the present application;

[0114] FIG10 is a schematic diagram showing a first waveform of a first signaling indication according to an embodiment of the present application;

[0115] FIG11 is a schematic diagram showing values ​​of symbols transmitted on resource units in a first set of resource units according to an embodiment of the present application;

[0116] FIG12 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0117] FIG13 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0118] 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.

[0119] Example 1

[0120] Example 1 illustrates a flowchart of a first node transmission according to an embodiment of the present application, as shown in FIG1 . In FIG1 , each box represents a step. In particular, the order of the steps in the boxes does not represent a specific temporal relationship between the steps.

[0121] In step 101 , the first node receives first signaling indicating a first set of resource units; and in step 102 , receives a first signal in a first multi-carrier symbol.

[0122] In embodiment 1, a portion of the first signal in resource units outside the first resource unit set carries communication information, and values ​​of symbols transmitted on resource units in the first resource unit set depend on a first waveform.

[0123] As an embodiment, the first node is the first node in this application.

[0124] As an embodiment, the first node receives the first signaling.

[0125] As an embodiment, the first signaling includes higher layer signaling.

[0126] As an embodiment, the first signaling includes dynamic signaling.

[0127] As an embodiment, the first signaling is dynamic signaling.

[0128] As an embodiment, the first signaling includes MAC (Medium Access Control) layer signaling.

[0129] As an embodiment, the first signaling includes a MAC CE (Control Element).

[0130] As an embodiment, the first signaling is MAC CE.

[0131] As an embodiment, the first signaling includes a subheader.

[0132] As an embodiment, the first signaling includes physical layer signaling.

[0133] As an embodiment, the first signaling is physical layer control signaling.

[0134] As an embodiment, the first signaling is downlink scheduling signaling.

[0135] As an embodiment, the first signaling includes DCI (Downlink Control Information).

[0136] As an embodiment, the first signaling is DCI, and the format of the first signaling is DCI format.

[0137] As an embodiment, the first signaling is DCI, and the format of the first signaling is a format for scheduling downlink signals.

[0138] As an embodiment, the first signaling indicates the first resource unit set.

[0139] As an embodiment, the first resource unit set includes at least one resource unit.

[0140] As an embodiment, the first resource unit set includes one resource unit.

[0141] As an embodiment, the first resource unit set includes multiple resource units.

[0142] As a sub-embodiment of this embodiment, the multiple resource units occupy the same time domain resources.

[0143] As a sub-embodiment of this embodiment, the time domain resources occupied by the multiple resource units are all the first multi-carrier symbols.

[0144] As a sub-embodiment of this embodiment, the frequency domain resources occupied by the multiple resource units are orthogonal.

[0145] As a sub-embodiment of this embodiment, the frequency domain resources occupied by the multiple resource units are continuous.

[0146] As a sub-embodiment of this embodiment, the frequency domain resources occupied by the multiple resource units are discontinuous.

[0147] As a sub-embodiment of this embodiment, frequency domain resources occupied by two resource units among the multiple resource units are continuous.

[0148] As a sub-embodiment of this embodiment, the frequency domain resources occupied by two resource units among the multiple resource units are discontinuous.

[0149] As a sub-embodiment of this embodiment, the frequency domain resources occupied by any two resource units among the multiple resource units are discontinuous.

[0150] As an embodiment, the resource unit described in this application is: Resource Unit, RU.

[0151] As an embodiment, the resource unit described in this application is: Resource Element, RE.

[0152] As an embodiment, the resource unit described in this application is a physical resource unit.

[0153] As an embodiment, the resource unit described in this application is a virtual resource unit.

[0154] As an embodiment, the resource unit described in this application is a common resource unit.

[0155] As an embodiment, the resource unit described in this application includes frequency domain resources.

[0156] As an embodiment, the resource unit described in this application includes time-frequency resources.

[0157] As an embodiment, the resource unit described in this application includes spatial resources.

[0158] As an embodiment, one resource unit described in the present application occupies one subcarrier in the frequency domain and one multi-carrier symbol in the time domain.

[0159] As an embodiment, one resource unit described in this application is used to transmit one symbol.

[0160] As an embodiment, one resource unit described in the present application is used to transmit one modulation symbol.

[0161] As an embodiment, one resource unit described in the present application is used to transmit one complex-valued symbol.

[0162] As an embodiment, one resource unit described in the present application is used to transmit one complex-valued modulation symbol.

[0163] As an embodiment, one resource unit described in this application corresponds to a complex value.

[0164] As an embodiment, the first signaling explicitly indicates the first resource unit set.

[0165] As a sub-embodiment of this embodiment, the explicit indication includes indicating the number of resource units included in the first resource unit set.

[0166] As a sub-embodiment of this embodiment, the explicit indication includes indicating frequency domain resources occupied by the resource units included in the first resource unit set.

[0167] As a sub-embodiment of this embodiment, the explicit indication includes an index indicating the resource units included in the first resource unit set.

[0168] As a sub-embodiment of this embodiment, the explicit indication includes a pattern indicating the resource units included in the first resource unit set.

[0169] As a sub-embodiment of this embodiment, the explicit indication includes indicating the density of resource units included in the first resource unit set.

[0170] As a sub-embodiment of this embodiment, the explicit indication includes indicating resource units across which the resource units included in the first set of resource units pass.

[0171] As a sub-embodiment of this embodiment, the explicit indication includes indicating a frequency offset value of a first resource unit included in the first resource unit set in a multi-carrier symbol.

[0172] As an embodiment, the first resource unit included in the first resource unit set in the present application refers to: the resource unit with the lowest frequency included in the first resource unit set.

[0173] As an embodiment, the first resource unit included in the first resource unit set in the present application refers to: the resource unit with the lowest central frequency included in the first resource unit set.

[0174] As an embodiment, the first resource unit included in the first resource unit set in the present application refers to: the resource unit with the smallest subcarrier index included in the first resource unit set.

[0175] As an embodiment, the first resource unit included in the first resource unit set in the present application refers to: the resource unit with the smallest subcarrier index in the resource block with the smallest resource block index included in the first resource unit set.

[0176] As an embodiment, the resource block mentioned in this application refers to: Resource Block, RB.

[0177] As an embodiment, the resource block described in this application refers to: Resource Group, RG.

[0178] As an embodiment, the resource block described in this application includes frequency domain resources.

[0179] As an embodiment, the resource blocks described in this application include time-frequency resources.

[0180] Typically, a resource block described in this application includes 12 consecutive resource units in the frequency domain.

[0181] Typically, a resource block described in this application includes 12 consecutive subcarriers.

[0182] As an embodiment, the resource block index described in this application includes: a physical resource block index.

[0183] As an embodiment, the resource block index described in this application includes: a virtual resource block index.

[0184] As an embodiment, the resource block index described in this application includes: a public resource block index.

[0185] As an embodiment, the first signaling implicitly indicates the first resource unit set.

[0186] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether ISAC (Integrated Sensing And Communication) is enabled.

[0187] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether the ISAC is active.

[0188] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether the first signal is used for perception.

[0189] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether the first signal is used for sensing and communication simultaneously.

[0190] As a sub-embodiment of this embodiment, the implicit indication includes indicating a waveform of the first signal.

[0191] As a sub-embodiment of this embodiment, the implicit indication includes indicating the first waveform.

[0192] As an embodiment, the first signaling directly indicates the first resource unit set.

[0193] As a sub-embodiment of this embodiment, the direct indication includes indicating using a corresponding code point.

[0194] As an embodiment, the first signaling indirectly indicates the first resource unit set.

[0195] As a sub-embodiment of this embodiment, the indirect indication includes indicating a pattern configured by indicating a higher layer signaling.

[0196] As an embodiment, the first signaling indicates the position of the first resource unit set in the frequency domain.

[0197] As an embodiment, the first signaling indicates the position of the subcarriers occupied by the first resource unit set in a multi-carrier symbol.

[0198] As an embodiment, the first signaling indicates the position of subcarriers occupied by the first resource unit set in a resource block.

[0199] As an embodiment, the first signaling includes a first field, and the first field indicates the first resource unit set.

[0200] As a sub-embodiment of this embodiment, the first field includes only 1 bit, and the 1 bit included in the first field indicates the first resource unit set.

[0201] As a sub-embodiment of this embodiment, the first field indicates whether the first resource unit set is valid.

[0202] As a sub-embodiment of this embodiment, the first field indicates whether the first resource unit set is adopted.

[0203] As a sub-embodiment of this embodiment, the first field indicates whether the first resource unit set is enabled.

[0204] As a sub-embodiment of this embodiment, the first field indicates whether the first resource unit set is activated.

[0205] As a sub-embodiment of this embodiment, the first field indicates the first waveform.

[0206] As a sub-embodiment of this embodiment, the first field indicates switching of the first waveform.

[0207] As a sub-embodiment of this embodiment, the first domain indicates that the first signal is transmitted using the first waveform.

[0208] As a sub-embodiment of this embodiment, the first field includes multiple bits, and the multiple bits included in the first field indicate the first resource unit set.

[0209] As a sub-embodiment of this embodiment, the first field indicates a frequency offset value of the first resource unit included in the first resource unit set in a multi-carrier symbol.

[0210] As a sub-embodiment of this embodiment, the first domain indicates the first resource unit set from multiple candidate resource unit sets.

[0211] As a subsidiary embodiment of this sub-embodiment, the multiple candidate resource unit sets are configured by higher-layer signaling.

[0212] As a subsidiary embodiment of this sub-embodiment, the multiple candidate resource unit sets are indicated by higher-layer signaling.

[0213] As a subsidiary embodiment of this sub-embodiment, the multiple candidate resource unit sets are configured by RRC (Radio Resource Control) signaling.

[0214] As a subsidiary embodiment of this sub-embodiment, the multiple candidate resource unit sets are indicated by MAC layer signaling.

[0215] As an embodiment, the first node receives the first signal in the first multi-carrier symbol.

[0216] As an embodiment, the first node receiving the first signal includes: the first node demodulating the first signal.

[0217] As an embodiment, the first node receiving the first signal includes: the first node reflecting the first signal.

[0218] As an embodiment, the first node receiving the first signal includes: the first node demodulating the first signal and reflecting the first signal.

[0219] As an embodiment, the first multi-carrier symbol includes an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0220] As an embodiment, the first multi-carrier symbol is an OFDM symbol.

[0221] As an embodiment, the first multi-carrier symbol includes a FBMC (Filter Bank Multi Carrier) symbol.

[0222] As an embodiment, the first multi-carrier symbol includes a UFMC (Universal Filtered Multi Carrier) symbol.

[0223] As an embodiment, the first multi-carrier symbol includes an F-OFDM (Filtered-OFDM) symbol.

[0224] As an embodiment, the first multi-carrier symbol includes an OCDM-OFDM (Orthogonal Chirp Division Multiplexing-OFDM) symbol.

[0225] As an embodiment, the first multi-carrier symbol includes the output of a transform precoding device obtained after OFDM symbol generation.

[0226] As an embodiment, the first multi-carrier symbol includes a CP-OFDM (Cyclic Prefix-OFDM) symbol.

[0227] As an embodiment, the first multi-carrier symbol is a downlink (DownLink, DL) symbol.

[0228] As an embodiment, the first multi-carrier symbol is a flexible (F) symbol.

[0229] As an embodiment, the first signal includes a wireless signal.

[0230] As an embodiment, the first signal includes a baseband signal.

[0231] As an embodiment, the first signal includes a frequency domain signal.

[0232] As an embodiment, the first signal includes a frequency domain signal obtained after FFT (Fast Fourier Transform).

[0233] As an embodiment, the first signal is a physical signal.

[0234] As an embodiment, the first signal includes a perception signal.

[0235] As an embodiment, the first signal includes a radar signal.

[0236] As an embodiment, the first signal includes a communication signal.

[0237] As an embodiment, the first signal includes a perception signal and a communication signal.

[0238] As an embodiment, the first signal is used for communication.

[0239] As an embodiment, the first signal is used for sensing.

[0240] As an embodiment, the first signal is used for communication and sensing simultaneously.

[0241] As an embodiment, the first signal carries user data.

[0242] As an embodiment, the first signaling is used to schedule the first signal.

[0243] As an embodiment, the first signaling includes scheduling information of the first signal.

[0244] As an embodiment, the scheduling information of the first signal includes one or more of the time domain resources, frequency domain resources, MCS (Modulation and Coding Scheme), DMRS (DeModulation Reference Signal) ports, HARQ (Hybrid Automatic Repeat reQuest) process number, TCI (Transmission Configuration Indicator) state, RV (Redundancy Version), NDI (New Data Indicator), Antenna ports, and SRS (Sounding Reference Signal) request.

[0245] As an embodiment, the frequency domain resources occupied by the first signal overlap with the frequency domain resources occupied by the first resource unit set.

[0246] As an embodiment, the frequency domain resources occupied by the first signal are not orthogonal to the frequency domain resources occupied by the first resource unit set.

[0247] As an embodiment, the frequency domain resources occupied by the first signal include the frequency domain resources occupied by the first resource unit set.

[0248] As an embodiment, the frequency domain resources occupied by the first signal include resource units outside the first resource unit set.

[0249] As an embodiment, the frequency domain resources occupied by the first signal overlap with the frequency domain resources occupied by the first resource unit set.

[0250] As an embodiment, the portion of the first signal in resource units outside the first resource unit set carries communication information.

[0251] As an embodiment, the first resource unit set includes K1 resource units, where K1 is a positive integer greater than 1, and the first signal occupies K0 resource units in the first multi-carrier symbol, where K0 is a positive integer greater than K1.

[0252] As a sub-embodiment of this embodiment, the K0 resource units are used for communication and sensing.

[0253] As a sub-embodiment of this embodiment, the resource units among the K0 resource units and other than the K1 resource units carry communication information.

[0254] As a sub-embodiment of this embodiment, resource units among the K0 resource units and other than the K1 resource units are used for communication.

[0255] As a sub-embodiment of this embodiment, the K1 resource units are used for sensing.

[0256] As a sub-embodiment of this embodiment, the K1 resource units are used for measurement.

[0257] As a sub-embodiment of this embodiment, the K1 resource units are used for positioning.

[0258] As a sub-embodiment of this embodiment, the K1 resource units are used for uplink synchronization.

[0259] As a sub-embodiment of this embodiment, the K1 resource units are used for channel estimation.

[0260] As a sub-embodiment of this embodiment, the K1 resource units are used to obtain speed information.

[0261] As an embodiment, the meaning of carrying communication information includes: carrying user data.

[0262] As an embodiment, the meaning of carrying communication information includes: carrying user signaling.

[0263] As an embodiment, the meaning of carrying communication information includes: the symbols in the corresponding resource unit are generated through modulation.

[0264] As an embodiment, the carrying of communication information means: not being used for perception or radar.

[0265] As an embodiment, the carrying of communication information means that the carried information is unknown to the first node.

[0266] As an embodiment, the meaning of carrying communication information includes: the symbols in the corresponding resource unit carry communication information.

[0267] As an embodiment, the meaning of carrying communication information includes: symbols in the corresponding resource unit are used for transmission for the purpose of communication.

[0268] As an embodiment, the carrying of communication information means that the symbols in the corresponding resource unit are used for transmission of PDCCH (Physical Downlink Control CHannel) or PDSCH (Physical Downlink Shared CHannel).

[0269] As an embodiment, the meaning of carrying communication information includes: symbols in the corresponding resource unit are used for SSB transmission.

[0270] As an embodiment, the carrying of communication information means that symbols in the corresponding resource unit are used for RS (Reference Signal) transmission under the 3GPP (the 3rd Generation Partnership Project) architecture.

[0271] As a sub-embodiment of this embodiment, the RS under the 3GPP architecture includes at least one of CSI-RS (Channel State Information-Reference Signal), DMRS (DeModulation Reference Signal), PTRS (Phase Tracking Reference Signal) or PRS (Positioning Reference Signal).

[0272] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block.

[0273] As an embodiment, the SSB described in this application refers to: SS (Synchronization Signal) / PBCH (Physical Broadcast Channel) block, synchronization signal / physical broadcast channel block.

[0274] Typically, the reception occasions of PBCH, PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are in consecutive symbols and form an SS / PBCH block.

[0275] As an embodiment, the values ​​of symbols transmitted on the resource units in the first resource unit set depend on the first waveform.

[0276] As an embodiment, the first waveform is a pulse waveform.

[0277] As an embodiment, the first waveform is a continuous waveform.

[0278] As an embodiment, the first waveform is an FMCW (Frequency Modulated Continuous Wave) waveform.

[0279] As an embodiment, the first waveform is a LFMCW (Linear Frequency Modulation Continuous Wave) waveform.

[0280] As an embodiment, the first waveform is a SFMCW (Step-FMCW, step frequency modulated continuous wave) waveform.

[0281] As an embodiment, the first waveform is a TFMCW (Trapezoidal-FMCW, trapezoidal frequency modulated continuous wave) waveform.

[0282] As an embodiment, the first waveform is a PRO-FMCW (Pseudo-Random Optimized FMCW) waveform.

[0283] As an embodiment, the first waveform is a FMICW (Frequency Modulated Intermittent Continuous Wave) waveform.

[0284] As an embodiment, the first waveform is a PMCW (Phase Modulated Continuous Wave) waveform.

[0285] As an embodiment, the first waveform is an LFM (Linear Frequency Modulation) waveform.

[0286] As an embodiment, the first waveform is a Chirp waveform.

[0287] As an embodiment, the first waveform is a PDR (Pulse Doppler Radar) waveform.

[0288] As an embodiment, the first waveform is an MFSK (Multiple Frequency Shift Keying) waveform.

[0289] As an embodiment, the first waveform is a fast Chirp ramp sequence waveform.

[0290] As an embodiment, the first waveform is a waveform used in 6G and later systems.

[0291] As an embodiment, the first waveform is used to transmit a downlink signal.

[0292] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are predefined.

[0293] As a sub-embodiment of this embodiment, the predefined value is determined by the first waveform.

[0294] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are obtained by looking up a table.

[0295] As a sub-embodiment of this embodiment, the value obtained by looking up the table is determined by the first waveform.

[0296] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the first waveform is the transmission waveform of the first signal.

[0297] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the first waveform is the transmission waveform of a portion of the first signal on the resource unit in at least the first resource unit set.

[0298] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the first waveform is the transmission waveform of the first signal on the first multi-carrier symbol.

[0299] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the first waveform is the transmission waveform of the portion of the first signal on the resource unit in at least the first resource unit set of the first multi-carrier symbol.

[0300] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the first waveform is used to generate the first signal.

[0301] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the first waveform is used to generate a portion of the first signal on the resource units in at least the first resource unit set.

[0302] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the first waveform is used to generate the numerical value of the symbol transmitted by the first signal on the resource unit in at least the first resource unit set.

[0303] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the numerical value of the symbol transmitted on the resource unit in the first resource unit set is generated by the first waveform.

[0304] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the complex value of the symbol transmitted on the resource unit in the first resource unit set is generated by the first waveform.

[0305] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the symbol transmitted on the resource unit in the first resource unit set is generated by the expression of the first waveform in the time domain through FFT.

[0306] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the sender of the first signal uses the first waveform to send the first signal.

[0307] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the sender of the first signal uses the first waveform to send at least a part of the first signal on the resource unit in the first resource unit set.

[0308] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the sender of the first signal uses the first waveform to generate at least the numerical value of the symbol transmitted by the first signal on the resource unit in the first resource unit set.

[0309] As an embodiment, the meaning that the numerical value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes: the sender of the first signal uses the first waveform to generate at least the complex value of the symbol transmitted by the first signal on the resource unit in the first resource unit set.

[0310] Example 2

[0311] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in Figure 2.

[0312] FIG2 illustrates a network architecture 200. The network architecture 200 is the network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G systems, 5G-Advanced, and future 6G systems. The network architecture for LTE, LTE-A, 5G systems, 5G-Advanced, and future 6G systems is referred to as EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS or some other suitable terminology; the 6G network architecture may be referred to as 6GS (6G System) / EPS or some other suitable terminology. The network architecture 200 may include one or more UEs 201, a Next Generation Radio Access Network (RAN) 202, a core network 210, a Home Subscriber Server (HSS) / Unified Data Management (UDM) 220, and Internet services 230. The network architecture 200 can interconnect with other access networks, but for simplicity these entities / interfaces are not shown. As shown in FIG2 , the network architecture 200 provides packet-switched services, however, 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. The RAN 202 includes a Node B 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards the UE 201. Node 203 can be connected to the other nodes 204 via an Xn interface (e.g., backhaul). Node 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a Transmitter Receiver Point (TRP), or some other appropriate terminology. Node 203 provides an access point to the core network 210 for UE 201; the core network 210 is 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is 6GC.Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, 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 physical network 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, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. Node 203 is connected to core network 210 via an S1 / NG interface. The core network 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5G-CN / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-specific Internet protocol services, which may include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0313] As an embodiment, the first node in the present application includes the UE 201.

[0314] As an embodiment, the second node in the present application includes the node 203.

[0315] As an embodiment, the second node in the present application includes the node 204.

[0316] As an embodiment, the UE 201 includes a mobile phone.

[0317] As an embodiment, the UE 201 is a vehicle including a car.

[0318] As an embodiment, the node 203 is a macro cell base station.

[0319] As an embodiment, the node 203 is a micro cell base station.

[0320] As an embodiment, the node 203 is a pico cell base station.

[0321] As an embodiment, the node 203 is a home base station (Femtocell).

[0322] As an embodiment, the node 203 is a base station device that supports a large delay difference.

[0323] As an embodiment, the node 203 is a flying platform device.

[0324] As an embodiment, the node 203 is a satellite device.

[0325] As an embodiment, the node 203 is a test device (eg, a transceiver that simulates some functions of a base station, a signaling tester).

[0326] As an embodiment, the node 204 is a macro cell base station.

[0327] As an embodiment, the node 204 is a micro cell base station.

[0328] As an embodiment, the node 204 is a picocell base station.

[0329] As an embodiment, the node 204 is a home base station.

[0330] As an embodiment, the node 204 is a base station device that supports large delay difference.

[0331] As an embodiment, the node 204 is a flying platform device.

[0332] As an embodiment, the node 204 is a satellite device.

[0333] As an embodiment, the node 204 is a test device (eg, a transceiver that simulates some functions of a base station, a signaling tester).

[0334] As an embodiment, the node 204 is a relay node device.

[0335] As an embodiment, the node 203 and the node 204 are the same node.

[0336] As an embodiment, the node 203 and the node 204 are two different nodes.

[0337] As an embodiment, the wireless link from the UE 201 to the node 203 is an uplink, and the uplink is used to perform uplink transmission.

[0338] As an embodiment, the wireless link from the node 203 to the UE 201 is a downlink, and the downlink is used to perform downlink transmission.

[0339] As an embodiment, the wireless link between the UE 201 and the node 203 includes a cellular network link.

[0340] As an embodiment, the UE 201 and the node 203 are connected via a Uu air interface.

[0341] As an embodiment, the sender of the first signaling includes the node 203.

[0342] As an embodiment, the recipient of the first signaling includes the UE 201.

[0343] As an embodiment, the sender of the first signal includes the UE 201.

[0344] As an embodiment, the receiver of the first signal includes the node 203.

[0345] As an embodiment, the UE 201 supports ISAC.

[0346] As an embodiment, the node 203 supports ISAC.

[0347] As an embodiment, the UE 201 at least supports a UE-TRP bistatic (dual-station) perception model.

[0348] As an embodiment, the node 203 at least supports the UE-TRP bistatic perception model.

[0349] As an embodiment, the UE 201 at least supports the TRP-UE bistatic perception model.

[0350] As an embodiment, the node 203 at least supports the TRP-TRP bistatic perception model.

[0351] As an embodiment, the UE 201 at least supports the UE-UE bistatic perception model.

[0352] As an embodiment, the node 203 at least supports the TRP-UE bistatic perception model.

[0353] As an embodiment, the UE 201 at least supports a TRP monostatic (single station) perception model.

[0354] As an embodiment, the node 203 at least supports the UE monostatic perception model.

[0355] As an embodiment, the UE 201 supports a 5G system.

[0356] As an embodiment, the UE 201 supports the 6G system.

[0357] As an embodiment, the node 203 supports a 6G system.

[0358] As an embodiment, the UE 201 supports at least the 6G system.

[0359] As an embodiment, the node 203 supports at least a 6G system.

[0360] As an embodiment, the UE 201 supports irregular coverage.

[0361] Example 3

[0362] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in FIG3 .

[0363] FIG3 is a schematic diagram illustrating an embodiment of a wireless protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the wireless protocol architecture for a first communication node device (a UE or RSU (Road Side Unit) in a V2X (Vehicle to Everything) network, a vehicle-mounted device, or a vehicle-mounted communication module) and a second node device (a gNB, a UE or RSU in a V2X network, a vehicle-mounted device, or a vehicle-mounted communication module), or the control plane 300 between two UEs using three layers: Layer 1 (L1), Layer 2 (L2), and Layer 3 (L3). L1 is the lowest layer and implements various PHY (PHYsical layer) signal processing functions. L1 will be referred to herein as PHY 301. L2 305 is above PHY 301 and is responsible for the link between the first and second node devices, or between two UEs, through PHY 301. L2305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. 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 provides support for inter-zone mobility of the first communication node device between the second communication node devices. 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 caused by 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) in a cell between the first communication node devices. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in L3 in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device.The wireless protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The wireless protocol architecture for the first and second communication node devices in the user plane 350 is substantially the same as the corresponding layers and sublayers in the control plane 300 for the physical layer 351, the PDCP sublayer 354 in L2 355, the RLC sublayer 353 in L2 355, and the MAC sublayer 352 in L2 355. However, the PDCP sublayer 354 also provides header compression for upper layer data packets to reduce wireless transmission overhead. L2 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS (Quality of Service) flows and Data Radio Bearers (DRBs) to support service diversity. Although not shown in the figure, the first communication node device may have several upper layers above L2355, including a network layer (e.g., IP (Internet Protocol) layer) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0364] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0365] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0366] As an embodiment, the first signaling is generated by the MAC 302 or MAC 352.

[0367] As an embodiment, the first signaling is generated by the PHY 301 or PHY 351.

[0368] As an embodiment, the first signal is generated by the PHY 301 or PHY 351 .

[0369] As an embodiment, the higher layer in this application refers to a layer above the physical layer.

[0370] As an embodiment, the higher layer in the present application includes a MAC layer.

[0371] As an embodiment, the higher layer in the present application includes an RRC layer.

[0372] Example 4

[0373] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0374] The first communications 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 .

[0375] The second 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 .

[0376] In transmission from the first communications device 410 to the second communications device 450, at the first communications device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 functionality. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the second communications device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communications device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 (i.e., physical layer). The transmit processor 416 performs coding and interleaving to facilitate forward error correction (FEC) at the second communications device 450, 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-ary phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based and non-codebook-based precoding and beamforming, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols 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 multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multi-carrier 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, which is then provided to a different antenna 420.

[0377] During transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 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 physical layer data signal and reference signal are demultiplexed by the receive processor 456, where the reference signal is used for channel estimation. The data signal is recovered in the multi-antenna receive processor 458 after multi-antenna detection to any parallel stream destined for the second communication device 450. The symbols on each parallel 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 first 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 L2 functionality. 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. In the DL, 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 L2. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using acknowledgment (ACK) and / or negative acknowledgment (NACK) protocols to support HARQ operations.

[0378] During transmission from the second communications device 450 to the first communications device 410, at the second communications device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmit functionality at the first communications device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communications device 410, implementing L2 functionality for both the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communications 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 parallel streams into multi-carrier / single-carrier symbol streams. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, these streams are 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.

[0379] During transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the reception functionality at the second communication device 450 described for transmission from the first communication device 410 to the second communication 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 the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 functionality. The controller / processor 475 implements L2 functionality. The controller / processor 475 may be associated with a memory 476 storing program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmit and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0380] As an embodiment, the second 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. The second communication device 450 device receives at least first signaling, the first signaling indicating a first resource unit set; receives a first signal in a first multi-carrier symbol; the portion of the first signal in resource units outside the first resource unit set carries communication information, and the values ​​of the symbols transmitted on the resource units in the first resource unit set depend on a first waveform.

[0381] As an embodiment, the second 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, and the actions include: receiving a first signaling; receiving a first signal in a first multi-carrier symbol.

[0382] As an embodiment, the first 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 first communication device 410 device at least sends first signaling, the first signaling indicating a first resource unit set; sends a first signal in a first multi-carrier symbol; the portion of the first signal in resource units outside the first resource unit set carries communication information, and the values ​​of the symbols transmitted on the resource units in the first resource unit set depend on a first waveform.

[0383] As an embodiment, the first 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, and the actions include: sending a first signaling; sending a first signal in a first multi-carrier symbol.

[0384] As an embodiment, the first node in the present application includes the second communication device 450.

[0385] As an embodiment, the second node in the present application includes the first communication device 410.

[0386] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send the first signaling; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling.

[0387] As an implementation, at least one of {the antenna 452, the transmitter 454, the multi-antenna transmit processor 457, the transmit processor 468, the controller / processor 459} is used to send a first signal in a first multi-carrier symbol; and at least one of {the antenna 420, the receiver 418, the multi-antenna receive processor 472, the receive processor 470, the controller / processor 475} is used to receive the first signal in the first multi-carrier symbol.

[0388] Example 5

[0389] Example 5 illustrates a flow chart of transmission between a first node and a second node according to an embodiment of the present application. In FIG5 , the first node U1 and the second node N2 communicate via a wireless link. It should be noted that the sequence in this example does not limit the order of signal transmission and implementation in this application.

[0390] For the first node U1, a first signaling is received in step S510; and a first signal is received in a first multi-carrier symbol in step S511.

[0391] For the second node N2, a first signaling is sent in step S520; and a first signal is sent in a first multi-carrier symbol in step S521.

[0392] In embodiment 5, the first signaling indicates a first resource unit set; part of the first signal in resource units outside the first resource unit set carries communication information, and the values ​​of symbols transmitted on the resource units in the first resource unit set depend on the first waveform.

[0393] As an embodiment, the first node U1 is the first node in this application.

[0394] As an embodiment, the second node N2 is the second node in this application.

[0395] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0396] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0397] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between user equipments.

[0398] As an embodiment, the second node N2 is a base station maintaining a service cell of the first node U1.

[0399] As an embodiment, the first signaling is transmitted on a physical layer control channel (only used to transmit physical layer control signaling).

[0400] As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH.

[0401] As an embodiment, the first signal is transmitted on a physical layer channel for transmitting user data.

[0402] As an embodiment, the first signal is transmitted in a perception-dedicated physical layer channel.

[0403] As an embodiment, the first signal is transmitted on a physical layer channel that transmits user data and perception signals.

[0404] As an embodiment, the physical layer channel occupied by the first signal includes PDSCH.

[0405] As an embodiment, the transmission channel occupied by the first signal includes DL-SCH (DownLink-Shared CHannel, downlink shared channel).

[0406] As an embodiment, step S511 is performed after step S510; and step S521 is performed after step S520.

[0407] Example 6

[0408] Embodiment 6 illustrates a schematic diagram of a first resource unit set according to an embodiment of the present application, as shown in FIG6. In FIG6, the horizontal axis represents frequency, a rectangular filled area in the frequency domain represents the frequency domain resources occupied by a resource unit, and a cross diamond filled rectangle represents a resource unit of the first resource unit set.

[0409] In embodiment 6, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the first waveform.

[0410] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the first waveform.

[0411] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol are continuous.

[0412] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol are discontinuous.

[0413] As an embodiment, the type of the first waveform is used to determine the frequency domain positions of the resource elements occupied by the first set of resource elements in the first multi-carrier symbol.

[0414] As an embodiment, the name of the first waveform is used to determine the frequency domain position of the resource elements occupied by the first resource element set in the first multi-carrier symbol.

[0415] As an embodiment, the modulation mode of the first waveform is used to determine the frequency domain position of the resource unit occupied by the first resource unit set in the first multi-carrier symbol.

[0416] As a sub-embodiment of this embodiment, the modulation method includes: spatial modulation.

[0417] As a sub-embodiment of this embodiment, the modulation method includes: OFDM modulation.

[0418] As a sub-embodiment of this embodiment, the modulation method includes: LMF modulation.

[0419] As a sub-embodiment of this embodiment, the modulation method includes: OTFS (Orthogonal Time Frequency Space) modulation.

[0420] As an embodiment, the frequency domain position of the resource units occupied by the first resource unit set in the first multi-carrier symbol depends on the position of the first multi-carrier symbol in a time slot.

[0421] As a sub-embodiment of this embodiment, the first waveform and the position of the first multi-carrier symbol in a time slot jointly determine the frequency domain position of the resource units occupied by the first resource unit set in the first multi-carrier symbol.

[0422] As an embodiment, the frequency domain position of the resource units occupied by the first resource unit set in the first multi-carrier symbol depends on the position of the time slot in which the first multi-carrier symbol is located.

[0423] As a sub-embodiment of this embodiment, the first waveform and the position of the time slot in which the first multi-carrier symbol is located jointly determine the frequency domain position of the resource units occupied by the first resource unit set in the first multi-carrier symbol.

[0424] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol are predefined.

[0425] As a sub-embodiment of this embodiment, the predefined frequency domain position is determined by the first waveform.

[0426] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol are obtained by looking up a table.

[0427] As a sub-embodiment of this embodiment, the frequency domain position obtained by table lookup is determined by the first waveform.

[0428] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol are determined from multiple candidate resource unit sets.

[0429] As a sub-embodiment of this embodiment, the multiple candidate resource unit sets are RRC configured.

[0430] As a sub-embodiment of this embodiment, the first waveform determines the first resource unit set from the multiple candidate resource sets.

[0431] Example 7

[0432] Embodiment 7 illustrates a first schematic diagram of a portion of a first signal in a first resource unit set according to an embodiment of the present application, as shown in FIG 7. In FIG 7, the portion of the first signal in the first resource unit set carries a perception signal.

[0433] In embodiment 7, the portion of the first signal in the first resource unit set carries a perception signal.

[0434] As an embodiment, the portion of the first signal in the first resource unit set carries a perception signal.

[0435] As an embodiment, the portion of the first signal in the first resource unit set is used for sensing.

[0436] As an embodiment, the portion of the first signal in the first resource unit set is used for measurement.

[0437] As an embodiment, the portion of the first signal in the first set of resource units is used for positioning.

[0438] As an embodiment, the portion of the first signal in the first resource unit set is used for uplink synchronization.

[0439] As an embodiment, the portion of the first signal in the first resource unit set is used for channel estimation.

[0440] As an embodiment, the portion of the first signal in the first resource unit set is used to obtain speed information of the first node.

[0441] As an embodiment, the portion of the first signal in the first resource unit set is used to obtain angle information of the first node.

[0442] As an embodiment, the portion of the first signal in the first resource unit set is used to obtain location information of the first node.

[0443] As an embodiment, the portion of the first signal in the first resource unit set is used to obtain distance information of the first node relative to a given reference point.

[0444] As a sub-embodiment of this embodiment, the given reference point is fixed.

[0445] As a sub-embodiment of this embodiment, the given reference point is the second node in this application.

[0446] As a sub-embodiment of this embodiment, the given reference point is a serving base station of the first node.

[0447] As an embodiment, in the present application, the second node senses the first node through the portion of the first signal in the first resource unit set.

[0448] As an embodiment, in the present application, the second node detects (detecting) the first node through the portion of the first signal in the first resource unit set.

[0449] As an embodiment, in the present application, the second node tracks the first node through the portion of the first signal in the first resource unit set.

[0450] As an embodiment, in the present application, the second node positions the first node through the portion of the first signal in the first resource unit set.

[0451] As an embodiment, in the present application, the second node perceives the first node through the echo signal of the portion of the first signal in the first resource unit set.

[0452] As an embodiment, in the present application, the second node detects the first node through the echo signal of the portion of the first signal in the first resource unit set.

[0453] As an embodiment, in the present application, the second node tracks the first node through the echo signal of the portion of the first signal in the first resource unit set.

[0454] As an embodiment, in the present application, the second node locates the first node through the echo signal of the portion of the first signal in the first resource unit set.

[0455] As an embodiment, in the present application, the second node perceives the first node through a feedback signal from the first node regarding the portion of the first signal in the first resource unit set.

[0456] As an embodiment, in the present application, the second node detects the first node through a feedback signal of the first node regarding the portion of the first signal in the first resource unit set.

[0457] As an embodiment, in the present application, the second node tracks the first node through a feedback signal from the first node regarding the portion of the first signal in the first resource unit set.

[0458] As an embodiment, in the present application, the second node locates the first node through a feedback signal from the first node regarding the portion of the first signal in the first resource unit set.

[0459] As an embodiment, the portion of the first signal in the first resource unit set does not carry communication information.

[0460] As an embodiment, the portion of the first signal in the first resource unit set does not carry user data.

[0461] As an embodiment, the portion of the first signal in the first resource unit set does not carry user information.

[0462] As an embodiment, the portion of the first signal in the first resource unit set does not carry user signaling.

[0463] As an embodiment, the portion of the first signal in the first resource unit set is not used for transmission for communication purposes.

[0464] As an embodiment, the first node needs to separate the part in the first resource unit set and the part outside the first resource unit set when demodulating the first signal.

[0465] As an embodiment, when demodulating the first signal, the first node needs to separate the part of the first signal carrying the communication information and the part carrying the perception information.

[0466] As an embodiment, when demodulating the first signal, the first node needs to demodulate the part of the first signal carrying the communication information and the part of the first signal carrying the perception information separately.

[0467] As an embodiment, the first node performs channel estimation on a portion of the first signal carrying communication information based on a portion of the first signal carrying the perception information.

[0468] As an embodiment, the first node estimates the frequency shift of the portion of the first signal carrying the communication information based on the portion of the first signal carrying the perception information.

[0469] As an embodiment, the first node performs channel equalization on a portion of the first signal carrying communication information based on a portion of the first signal carrying the perception information.

[0470] Example 8

[0471] Embodiment 8 illustrates a second schematic diagram of a portion of a first signal in a first resource unit set according to an embodiment of the present application, as shown in FIG8 .

[0472] In embodiment 8, the portion of the first signal in the first set of resource elements is used as a reference signal for symbols of the first signal on resource elements outside the first set of resource elements.

[0473] As an embodiment, the portion of the first signal in the first set of resource elements is used as a reference signal for symbols of the first signal on resource elements outside the first set of resource elements.

[0474] As an embodiment, the reference signal is a downlink reference signal.

[0475] As an embodiment, the reference signal is cell-specific.

[0476] As an embodiment, the reference signal is cell-common.

[0477] As an embodiment, the reference signal is UE (User Equipment, user equipment) specific (UE-specific).

[0478] As an embodiment, the reference signal is UE-dedicated.

[0479] As an embodiment, the reference signal does not belong to the reference signal defined in 3GPP Rel-18 or versions earlier than 3GPP Rel-18.

[0480] As an embodiment, the reference signal is a reference signal in a 6G or later system.

[0481] As an embodiment, the symbols transmitted by the first signal in the first resource unit set are predefined.

[0482] As an embodiment, the symbols transmitted by the first signal in the first resource unit set are known to the first node.

[0483] As an embodiment, the symbols transmitted by the first signal in the first resource unit set are used for demodulation of the communication information carried by the first signal.

[0484] As an embodiment, the symbols transmitted by the first signal in the first resource unit set are used for channel estimation of the communication information carried by the first signal.

[0485] As an embodiment, the symbols transmitted by the first signal in the first resource unit set are used as demodulation references for the communication information carried by the first signal.

[0486] As an embodiment, the symbols transmitted by the first signal in the first resource unit set are used for channel equalization of the communication information carried by the first signal.

[0487] Example 9

[0488] Embodiment 9 illustrates a schematic diagram of using first signals for sensing according to an embodiment of the present application, as shown in FIG9 . In FIG9 , the horizontal axis represents frequency, a rectangular filled area represents frequency domain resources occupied by a resource unit in the frequency domain, and a cross-diamond filled rectangle represents a resource unit of a first resource unit set.

[0489] In embodiment 9, the first signaling indicates that the first resource unit set includes all resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is used for sensing.

[0490] As an embodiment, the first signaling indicates that the first resource unit set includes all resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is used for sensing.

[0491] As an embodiment, the meaning that the first signal does not include a cyclic prefix includes: a portion of the first signal reserved for the cyclic prefix is ​​used to transmit the perception signal.

[0492] As an embodiment, the meaning that the first signal does not include a cyclic prefix includes: a portion of the first signal reserved for the cyclic prefix is ​​used for a guard interval.

[0493] As an embodiment, the meaning that the first signal does not include a cyclic prefix includes: a portion of the first signal reserved for the cyclic prefix does not transmit information.

[0494] As an embodiment, when the first signaling indicates that the first resource element set includes all resource elements included in the first multi-carrier symbol, all resource elements in the first signal are used for sensing.

[0495] As an embodiment, when the first signaling indicates that the first resource element set includes all resource elements included in the first multi-carrier symbol, the first signal does not include a cyclic prefix.

[0496] As an embodiment, when the first signaling indicates that the first resource element set includes all resource elements included in the first multi-carrier symbol, all resource elements in the first signal are used to transmit the perception signal.

[0497] As an embodiment, when the first signaling indicates that the first resource element set includes all resource elements included in the first multi-carrier symbol, the first signal falls back to a perception signal.

[0498] As an embodiment, the first signaling instructs the ISAC to fallback to a full-sensing mode.

[0499] As an embodiment, the first signaling instructs the ISAC to fall back to the sensing-only mode.

[0500] As an embodiment, the first signaling indicates that the first signal is not used to transmit communication information.

[0501] As an embodiment, the first signaling indicates that the first signal is a perception signal.

[0502] As an embodiment, the first signaling indicates that the first signal is a radar signal.

[0503] As an embodiment, the first signaling indicates that the first signal is a reflected signal.

[0504] As an embodiment, the first signal is received by the first node after being reflected by the sensing target.

[0505] As an embodiment, the first signal is used to sense the first node.

[0506] As an embodiment, the first signal is used to sense location information of the first node.

[0507] As an embodiment, the first signal is used to sense speed information of the first node.

[0508] As an embodiment, the first signal is used to sense a third node, and the first signal is received by the first node after being reflected by the third node.

[0509] As a sub-embodiment of this embodiment, the first node sends a second signal, where the second signal includes feedback information of the first signal.

[0510] As a sub-embodiment of this embodiment, the first node sends a second signal, and the second signal includes the location information of the third node.

[0511] As a sub-embodiment of this embodiment, the first node sends a second signal, and the second signal includes speed information of the third node.

[0512] As an embodiment, the first node receiving the first signal includes: reflecting the first signal.

[0513] As an embodiment, the first node receiving the first signal includes: receiving and reflecting the first signal.

[0514] As an embodiment, the first node receiving the first signal includes: receiving and measuring the first signal.

[0515] As an embodiment, the first node receiving the first signal includes: receiving and feeding back the first signal.

[0516] As an embodiment, the first signal is sent in an omnidirectional manner; the above method can expand the perception range.

[0517] As an embodiment, the first signal is sent in a beamforming manner; the above method can obtain accurate perception information.

[0518] Example 10

[0519] Embodiment 10 illustrates a schematic diagram of a first signaling indicating a first waveform according to an embodiment of the present application, as shown in FIG10. In FIG10, the first signaling indicates the first waveform from M1 candidate waveforms, where M1 is a positive integer greater than 1.

[0520] In embodiment 10, the first signaling indicates the first waveform from M1 candidate waveforms, where M1 is a positive integer greater than 1.

[0521] As an embodiment, the first signaling indicates the first waveform from M1 candidate waveforms, where M1 is a positive integer greater than 1.

[0522] As an embodiment, the RNTI (Radio Network Temporary Identifier) ​​of the first signaling indicates the first waveform from the M1 candidate waveforms.

[0523] As an embodiment, M1 is equal to 2.

[0524] As an embodiment, M1 is equal to 3.

[0525] As an embodiment, M1 is a positive integer greater than 3.

[0526] As an embodiment, the M1 candidate waveforms include at least one waveform that is only used for communication.

[0527] As an embodiment, the M1 candidate waveforms include at least one waveform that is only used for perception.

[0528] As an embodiment, the M1 candidate waveforms include at least one waveform that is used for both communication and sensing.

[0529] As an embodiment, all of the M1 candidate waveforms may be used for sensing.

[0530] As an embodiment, all of the M1 candidate waveforms may be used for communication.

[0531] As an embodiment, the M1 candidate waveforms can be used for sensing and communication simultaneously.

[0532] As an embodiment, the M1 candidate waveforms include at least the first two of a waveform used for both sensing and communication, a waveform used only for communication, and a waveform used only for sensing.

[0533] As an embodiment, the M1 candidate waveforms include waveforms used for both sensing and communication, waveforms used only for communication, and waveforms used only for sensing.

[0534] As an embodiment, the M1 candidate waveforms include continuous waveforms.

[0535] As an embodiment, the M1 candidate waveforms include pulse waveforms.

[0536] As an embodiment, the M1 candidate waveforms include FMCW waveforms.

[0537] As an embodiment, the M1 candidate waveforms include LFMCW waveforms.

[0538] As an embodiment, the M1 candidate waveforms include SFMCW waveforms.

[0539] As an embodiment, the M1 candidate waveforms include TFMCW waveforms.

[0540] As an embodiment, the M1 candidate waveforms include a PRO-FMCW waveform.

[0541] As an embodiment, the M1 candidate waveforms include the FMICW waveform.

[0542] As an embodiment, the M1 candidate waveforms include a PMCW waveform.

[0543] As an embodiment, the M1 candidate waveforms include LFM waveforms.

[0544] As an embodiment, the M1 candidate waveforms include Chirp waveforms.

[0545] As an embodiment, the M1 candidate waveforms include a PDR waveform.

[0546] As an embodiment, the M1 candidate waveforms include MFSK waveforms.

[0547] As an embodiment, the M1 candidate waveforms include a fast Chirp ramp sequence waveform.

[0548] As an embodiment, the first signaling directly indicates the first waveform from the M1 candidate waveforms.

[0549] As a sub-embodiment of this embodiment, the first signaling directly indicates the index of the first waveform.

[0550] As a sub-embodiment of this embodiment, the first signaling directly indicates the type of the first waveform.

[0551] As an embodiment, the first signaling indirectly indicates the first waveform from the M1 candidate waveforms.

[0552] As a sub-embodiment of this embodiment, the indirect indication includes indicating whether the waveform is switched.

[0553] As a sub-embodiment of this embodiment, the indirect indication includes whether to indicate waveform switching.

[0554] As an embodiment, the first signaling explicitly indicates the first waveform from the M1 candidate waveforms.

[0555] As a sub-embodiment of this embodiment, the first signaling explicitly indicates the time-frequency resources carrying the perception signal in the first signal.

[0556] As a sub-embodiment of this embodiment, the first signaling explicitly indicates the time-frequency resources carrying the communication signal in the first signal.

[0557] As an embodiment, the first signaling implicitly indicates the first waveform from the M1 candidate waveforms.

[0558] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether ISAC is enabled.

[0559] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether the ISAC is activated.

[0560] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether the first signal is used for perception.

[0561] As a sub-embodiment of this embodiment, the implicit indication includes indicating whether the first signal is used for sensing and communication simultaneously.

[0562] As an embodiment, the signaling format of the first signaling indicates the first waveform from the M1 candidate waveforms.

[0563] As an embodiment, the time domain resources occupied by the first signaling indicate the first waveform from the M1 candidate waveforms.

[0564] As an embodiment, the frequency domain resources occupied by the first signaling indicate the first waveform from the M1 candidate waveforms.

[0565] As an embodiment, the time-frequency resources occupied by the first signaling indicate the first waveform from the M1 candidate waveforms.

[0566] As an embodiment, the first signaling includes a second field, and the second field in the first signaling indicates the first waveform from the M1 candidate waveforms.

[0567] As a sub-embodiment of this embodiment, the code point corresponding to the second domain directly indicates the first waveform.

[0568] As a sub-embodiment of this embodiment, when the second domain is equal to a first value, the first signal is transmitted using the first waveform; when the second domain is equal to a second value, the first signal is not transmitted using the first waveform.

[0569] As a sub-embodiment of this embodiment, the second field indicates switching from a second waveform among the M1 waveforms to the first waveform, and the first waveform is different from the second waveform.

[0570] As a sub-embodiment of this embodiment, the second field includes only one bit.

[0571] As a sub-embodiment of this embodiment, the second field includes at least one bit.

[0572] As a sub-embodiment of this embodiment, the second field includes more than one bit.

[0573] As a sub-embodiment of this embodiment, the number of bits included in the second field is configurable.

[0574] As a sub-embodiment of this embodiment, the value of the second field is a non-negative integer.

[0575] As a sub-embodiment of this embodiment, the value of the second field is a sequence.

[0576] As a sub-embodiment of this embodiment, the value of the second field is a sequence consisting of the value of each bit included in the second field.

[0577] As a sub-embodiment of this embodiment, the waveform corresponding to the value of the second field is configured by higher-layer signaling.

[0578] As an embodiment, more than one field in the first signaling jointly indicates the first waveform.

[0579] As a sub-embodiment of this embodiment, the first waveform includes a waveform used for communication and a waveform used for sensing.

[0580] As a sub-embodiment of this embodiment, the first waveform includes an integrated waveform used for both communication and perception in synaesthesia integration.

[0581] As an embodiment, the first waveform is one of M1 candidate waveforms, the M1 candidate waveforms respectively correspond to M1 patterns, and the type of candidate waveform corresponding to the first waveform is used to determine the frequency domain position of the resource unit occupied by the first resource unit set in the first multi-carrier symbol from the M1 patterns; the M1 is a positive integer greater than 1.

[0582] As a sub-embodiment of this embodiment, at least two patterns among the M1 patterns occupy different resource units in the first multi-carrier symbol.

[0583] As a sub-embodiment of this embodiment, the first signaling is used to determine the first waveform.

[0584] As a sub-embodiment of this embodiment, the first signaling is used to indicate the first waveform.

[0585] As a sub-embodiment of this embodiment, the first signaling is used to determine the first waveform from the M1 candidate waveforms.

[0586] As a sub-embodiment of this embodiment, the first signaling is used to indicate the first waveform from the M1 candidate waveforms.

[0587] As a sub-embodiment of this embodiment, the first signaling is used to determine the pattern corresponding to the first resource unit set from the M1 patterns.

[0588] As a sub-embodiment of this embodiment, the first signaling is used to determine the pattern indicated by the first resource unit set from the M1 patterns.

[0589] Example 11

[0590] Embodiment 11 illustrates a schematic diagram of the values ​​of symbols transmitted on resource units in a first resource unit set according to an embodiment of the present application, as shown in Figure 11. In Figure 11, the values ​​of the symbols transmitted on the resource units in the first resource unit set are determined by performing an FFT transform on the first waveform.

[0591] In embodiment 11, the values ​​of the symbols transmitted on the resource units in the first resource unit set are determined by performing FFT transformation on the first waveform.

[0592] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are determined by performing FFT transformation on the first waveform.

[0593] As an embodiment, the numerical value of the symbol described in this application includes a complex value.

[0594] As an embodiment, the numerical value of the symbol described in this application includes amplitude and phase.

[0595] As an embodiment, the one resource unit described in this application transmits the one symbol.

[0596] As an embodiment, the resource unit described in this application transmits the value of the symbol.

[0597] As an embodiment, the number of symbols corresponding to the first multi-carrier symbol without including CP is Q, and the value of the symbol transmitted on the resource unit in the first resource unit set is equal to the value generated by FFT of Q sampling points of the first waveform in the time domain.

[0598] As a sub-embodiment of this embodiment, the first resource unit set occupies K1 resource units out of the Q resource units of the first multi-carrier symbol without including CP, and the value of the symbol transmitted on the K1 resource units is equal to the K1 values ​​corresponding to the K1 resource unit positions among the Q values ​​generated after FFT of the Q sampling points.

[0599] As a sub-embodiment of this embodiment, the position of the first resource unit set in the first multi-carrier symbol corresponds to the largest N1 values ​​among the Q values ​​generated after the Q sampling points are subjected to FFT, and the N1 is fixed, or the N1 is configurable; the N1 is a positive integer less than the Q and greater than 1.

[0600] As a subsidiary embodiment of this sub-embodiment, the N1 is equal to the K1 in this application.

[0601] As a subsidiary embodiment of this sub-embodiment, the value of N1 is predefined.

[0602] As a subsidiary embodiment of this sub-embodiment, the value of N1 is configurable.

[0603] As a subsidiary embodiment of this sub-embodiment, the value of N1 depends on the first waveform.

[0604] As an embodiment, the symbols described in this application are different from multi-carrier symbols.

[0605] As an embodiment, the multi-carrier symbols described in the present application include time domain resources.

[0606] Example 12

[0607] 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 , the processing device 1200 in the first node includes a first receiver 1201 .

[0608] In embodiment 12, the first receiver 1201 receives first signaling indicating a first resource unit set; and receives a first signal in a first multi-carrier symbol.

[0609] In embodiment 12, a portion of the first signal in resource units outside the first resource unit set carries communication information, and values ​​of symbols transmitted on resource units in the first resource unit set depend on a first waveform.

[0610] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the first waveform.

[0611] As an embodiment, the portion of the first signal in the first resource unit set carries a perception signal.

[0612] As an embodiment, the portion of the first signal in the first set of resource elements is used as a reference signal for symbols of the first signal on resource elements outside the first set of resource elements.

[0613] As an embodiment, the first signaling indicates that the first resource unit set includes all resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is used for sensing.

[0614] As an embodiment, the first signaling indicates the first waveform from M1 candidate waveforms, where M1 is a positive integer greater than 1.

[0615] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are determined by performing FFT transformation on the first waveform.

[0616] As an embodiment, the first waveform is a waveform used in 6G and later systems.

[0617] As an embodiment, the first waveform is used to transmit a downlink signal.

[0618] As an embodiment, the first waveform is a transmission waveform of the first signal.

[0619] As an embodiment, the first waveform is a transmission waveform of a portion of the first signal on a resource unit in at least the first resource unit set.

[0620] As an embodiment, the first waveform is a transmission waveform of the first signal on the first multi-carrier symbol.

[0621] As an embodiment, the first waveform is a transmission waveform of a portion of the first signal on a resource element in at least the first set of resource elements of the first multi-carrier symbol.

[0622] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are predefined; the predefined values ​​are determined by the first waveform.

[0623] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are obtained by table lookup; the values ​​obtained by table lookup are determined by the first waveform.

[0624] As an embodiment, the first signal includes at least one of a perception signal and a communication signal.

[0625] As an embodiment, the first signal is used for communication, or the first signal is used for perception, or the first signal is used for communication and perception at the same time.

[0626] As an embodiment, in the present application, the second node perceives the first node through the portion of the first signal in the first resource unit set.

[0627] As an embodiment, in the present application, the second node detects the first node through the portion of the first signal in the first resource unit set.

[0628] As an embodiment, in the present application, the second node tracks the first node through the portion of the first signal in the first resource unit set.

[0629] As an embodiment, in the present application, the second node locates the first node through the portion of the first signal in the first resource unit set.

[0630] As an embodiment, the first signal is used to sense the third node, and the first signal is received by the first node after being reflected by the third node; the first node sends a second signal, and the second signal includes feedback information of the first signal.

[0631] As an embodiment, the first node is user equipment.

[0632] As an embodiment, the first node is a relay node device.

[0633] As an embodiment, the first receiver 1201 includes at least one of {antenna 452, receiver 454, receiving processor 456, multi-antenna receiving processor 458, controller / processor 459, memory 460, data source 467} in embodiment 4.

[0634] Example 13

[0635] 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 first transmitter 1301 .

[0636] In embodiment 13, the first transmitter 1301 sends a first signaling indicating a first resource unit set; and sends a first signal in a first multi-carrier symbol.

[0637] In embodiment 13, a portion of the first signal in resource units outside the first resource unit set carries communication information, and values ​​of symbols transmitted on resource units in the first resource unit set depend on a first waveform.

[0638] As an embodiment, the frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the first waveform.

[0639] As an embodiment, the portion of the first signal in the first resource unit set carries a perception signal.

[0640] As an embodiment, the portion of the first signal in the first set of resource elements is used as a reference signal for symbols of the first signal on resource elements outside the first set of resource elements.

[0641] As an embodiment, the first signaling indicates that the first resource unit set includes all resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is used for sensing.

[0642] As an embodiment, the first signaling indicates the first waveform from M1 candidate waveforms, where M1 is a positive integer greater than 1.

[0643] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are determined by performing FFT transformation on the first waveform.

[0644] As an embodiment, the first waveform is a waveform used in 6G and later systems.

[0645] As an embodiment, the first waveform is used to transmit a downlink signal.

[0646] As an embodiment, the first waveform is a transmission waveform of the first signal.

[0647] As an embodiment, the first waveform is a transmission waveform of a portion of the first signal on a resource unit in at least the first resource unit set.

[0648] As an embodiment, the first waveform is a transmission waveform of the first signal on the first multi-carrier symbol.

[0649] As an embodiment, the first waveform is a transmission waveform of a portion of the first signal on a resource element in at least the first set of resource elements of the first multi-carrier symbol.

[0650] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are predefined; the predefined values ​​are determined by the first waveform.

[0651] As an embodiment, the values ​​of the symbols transmitted on the resource units in the first resource unit set are obtained by table lookup; the values ​​obtained by table lookup are determined by the first waveform.

[0652] As an embodiment, the first signal includes at least one of a perception signal and a communication signal.

[0653] As an embodiment, the first signal is used for communication, or the first signal is used for perception, or the first signal is used for communication and perception at the same time.

[0654] As an embodiment, the second node perceives the first node in this application through the part of the first signal in the first resource unit set.

[0655] As an embodiment, the second node detects the first node through the portion of the first signal in the first resource unit set.

[0656] As an embodiment, the second node tracks the first node in this application through the portion of the first signal in the first resource unit set.

[0657] As an embodiment, the second node locates the first node in this application through the portion of the first signal in the first resource unit set.

[0658] As an embodiment, the first signal is used to sense a third node, and the first signal is reflected by the third node and received by the first node in this application; the first node in this application sends a second signal, and the second signal includes feedback information of the first signal.

[0659] As an embodiment, the second node is a base station device.

[0660] As an embodiment, the second node is user equipment.

[0661] As an embodiment, the second node is a relay node device.

[0662] As an embodiment, the second node is a maintenance device of a serving cell.

[0663] As an embodiment, the second node is a serving cell maintaining device of the first node.

[0664] As an embodiment, the first transmitter 1301 includes at least one of {antenna 420, transmitter 418, transmit processor 416, multi-antenna transmit processor 471, controller / processor 475, memory 476} in embodiment 4.

[0665] 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, transportation vehicles, vehicles, RSUs, wireless sensors, internet cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things) 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 equipment in this application include but are not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB (evolved Node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSUs, drones, test equipment, such as transceivers or signaling testers that simulate some functions of base stations, and other wireless communication equipment.

[0666] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node used for wireless communication signal transmission, characterized in that: include: A first receiver receives a first signaling, where the first signaling indicates a first resource unit set; receiving a first signal in a first multi-carrier symbol; Part of the first signal in resource units outside the first resource unit set carries communication information, and values ​​of symbols transmitted on resource units in the first resource unit set depend on a first waveform.

2. The first node according to claim 1, characterized in that: The frequency domain positions of resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the first waveform.

3. The first node according to claim 1, characterized in that: The part of the first signal in the first resource unit set carries a perception signal.

4. The first node according to claim 1, characterized in that: The portion of the first signal in the first set of resource elements is used as a reference signal of symbols of the first signal on resource elements outside the first set of resource elements.

5. The first node according to claim 1, characterized in that: The first signaling indicates that the first resource unit set includes all resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is used for sensing.

6. The first node according to claim 1, characterized in that: The first signaling indicates the first waveform from M1 candidate waveforms, where M1 is a positive integer greater than 1.

7. The first node according to claim 1, characterized in that: The values ​​of symbols transmitted on the resource units in the first resource unit set are determined by performing FFT transformation on the first waveform.

8. The first node according to claim 1, characterized in that: The meaning that the value of the symbol transmitted on the resource unit in the first resource unit set depends on the first waveform includes at least one of the following: - the values ​​of symbols transmitted on the resource units in the first set of resource units are generated by the first waveform; - the complex values ​​of the symbols transmitted on the resource units in the first set of resource units are generated by the first waveform; -The symbols transmitted on the resource units in the first resource unit set are generated by the expression of the first waveform in the time domain through FFT.

9. The first node according to claim 1, characterized in that: The first waveform is one of a pulse waveform, a continuous waveform, a FMCW waveform, a LFMCW waveform, a SFMCW waveform, a TFMCW waveform, a PRO-FMCW waveform, a FMICW waveform, a PMCW waveform, a LFM waveform, a Chirp waveform, a PDR waveform, a MFSK waveform, or a fast Chirp ramp sequence waveform.

10. The first node according to claim 2, characterized in that: The type of the first waveform is used to determine the frequency domain position of the resource units occupied by the first resource unit set in the first multi-carrier symbol; or, the name of the first waveform is used to determine the frequency domain position of the resource units occupied by the first resource unit set in the first multi-carrier symbol; or, the modulation method of the first waveform is used to determine the frequency domain position of the resource units occupied by the first resource unit set in the first multi-carrier symbol.

11. The first node according to claim 1, characterized in that: The frequency domain positions of the resource units occupied by the first resource unit set in the first multi-carrier symbol depend on the position of the first multi-carrier symbol in a time slot.

12. The first node according to claim 5, characterized in that: The meaning that the first signal does not include a cyclic prefix includes: a portion of the first signal reserved for the cyclic prefix is ​​used to transmit the perception signal.

13. The first node according to claim 6, characterized in that: The first waveform is one of M1 candidate waveforms, the M1 candidate waveforms respectively correspond to M1 patterns, and the type of the candidate waveform corresponding to the first waveform is used to determine the frequency domain position of the resource unit occupied by the first resource unit set in the first multi-carrier symbol from the M1 patterns; The M1 is a positive integer greater than 1.

14. The first node according to claim 13, characterized in that: The M1 candidate waveforms include multiple waveforms of a pulse waveform, a continuous waveform, an FMCW waveform, a LFMCW waveform, a SFMCW waveform, a TFMCW waveform, a PRO-FMCW waveform, a FMICW waveform, a PMCW waveform, an LFM waveform, a Chirp waveform, a PDR waveform, an MFSK waveform, or a fast Chirp ramp sequence waveform.

15. The first node according to claim 13, characterized in that: The M1 candidate waveforms include at least one waveform that is only used for communication.

16. The first node according to claim 13, characterized in that: The M1 candidate waveforms include at least one waveform that is only used for sensing.

17. The first node according to claim 13, characterized in that: The M1 candidate waveforms include at least the first two of a waveform used for both sensing and communication, a waveform used only for communication, and a waveform used only for sensing.

18. The first node according to claim 7, characterized in that: The number of symbols corresponding to the first multi-carrier symbol without including CP is Q, and the value of the symbol transmitted on the resource unit in the first resource unit set is equal to the value generated after FFT of Q sampling points of the first waveform in the time domain.

19. A second node used for wireless communication signal transmission, characterized in that: include: A first transmitter sends a first signaling, where the first signaling indicates a first resource unit set; sending a first signal in a first multi-carrier symbol; Part of the first signal in resource units outside the first resource unit set carries communication information, and values ​​of symbols transmitted on resource units in the first resource unit set depend on a first waveform.

20. A method for a first node used for wireless communication signal transmission, characterized in that: include: receiving first signaling, wherein the first signaling indicates a first resource unit set; receiving a first signal in a first multi-carrier symbol; Part of the first signal in resource units outside the first resource unit set carries communication information, and values ​​of symbols transmitted on resource units in the first resource unit set depend on a first waveform.

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