Method and apparatus in node used for wireless communication signal transmission

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication signal transmission. A first node receives a first signaling, wherein the first signaling indicates a first resource unit set; receiving a first signal in the first multicarrier symbol; a part of the first signal in the resource units except the first resource unit set carries communication information, and numerical values of symbols transmitted on the resource units in the first resource unit set depend on a first waveform. According to the invention, the waveform design of the communication and sensing integration based on the orthogonal frequency domain resources is solved, the communication and sensing integration technology can be supported on the premise that the modification cost of the existing network is relatively low, the fusion between communication and sensing is completed, and the interference after the fusion of communication and sensing is reduced at the same time.

Description

Technical Field

[0001] This application relates to transmission methods and devices in signal transmission of wireless communication systems, and particularly to methods and devices for signal waveforms. Background Art

[0002] With the development of mobile communication, especially the application of 5G active antenna arrays, the architectures of communication systems and sensing systems tend to be consistent, and the integrated trend of communication and sensing capabilities in the network is gradually becoming obvious. The integrated communication and sensing technology, that is, the integrated sensing and communication (ISAC) technology, refers to achieving unified design of communication and sensing functions through means such as joint design of the air interface and protocols, time-frequency-space resource reuse, and sharing of hardware devices, enabling the wireless network to achieve high-precision and refined sensing functions while performing high-quality communication interactions, thereby improving the spectral efficiency, energy efficiency, and hardware efficiency of the system, obtaining integration gain. In addition, by assisting and collaborating with each other between the two functions of communication and sensing, the performance of each other can be improved, and thus coordination gain can be obtained.

[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 use cases for the ISAC scenario; in June 2023, 32 use cases in three major scenarios, namely object detection and tracking, environment monitoring, and motion monitoring supported in ISAC, were elaborated in the Technical Report (TR) 22.837 (Rel-19) of the Feasibility Study on Integrated Sensing and Communication passed by the 3GPP SA #100 plenary session; in December 2023, the 3GPP RAN (Radio Access Network) #102 plenary session passed the SI (Study Item) of the Study on channel modelling for Integrated Sensing And Communication (ISAC) for NR. The RAN1 working group will also aim to support the object detection and tracking scenario in the Rel-19 phase and will lead research on ISAC channel modelling starting from the channel model in 38.901. ISAC is regarded as one of the key potential technology development directions and six major application scenarios in the 6G phase. Summary of the Invention

[0004] The core issue in integrated sensing and communication is the integrated waveform design, that is, to design a dual-functional transmit waveform that can have high-precision sensing capabilities while performing high-rate communication; currently, the waveform design for integrated sensing and communication generally falls 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 sensing waveforms, the integrated waveform design still faces the challenge of trade-off optimization among scenarios, performance, and hardware complexity.

[0005] In view of the above problems, the present application discloses a solution. It should be noted that in the above problem description, the NR (New Radio) system is taken as an example, and the present application is also applicable to scenarios such as future 6G systems and can achieve technical effects similar to those of the NR system; further, although the original intention of the present application is for the ISAC scenario, the present application can also be applied to other non-ISAC scenarios; further, 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), Reconfigurable Intelligent Surface (RIS), Network Control Repeater (NCR) capacity enhancement system, short-range communication system, Non Terrestrial Network (NTN), Internet of Things (IoT), Ultra Reliable Low Latency Communication (URLLC) network, etc.) is also helpful for reducing hardware complexity and cost. Without conflict, the embodiments and features in any node of the present application can be applied to any other node. Without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0006] In particular, the explanations of the terms, nouns, functions, and variables in the present application (if not otherwise specified) can refer to the definitions in the TS38 series and TS37 series of the 3GPP Technical Specification (TS). If necessary, TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, TS38.423 in the 3GPP technical standard can be referred to for assisting in understanding the present application.

[0007] As an example, the explanations of the terms in the present application refer to the definitions in the TS38 series of the 3GPP specification protocol.

[0008] As an example, the explanations of the terms in the present application refer to the definitions in the TS37 series of the 3GPP specification protocol.

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

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

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

[0012] Receiving a first signaling that indicates a first set of resource units; receiving a first signal in a first multi-carrier symbol;

[0013] Wherein, a part of the first signal carried in resource units outside the first set of resource units carries communication information, and the value of the symbol transmitted on the resource units in the first set of resource units depends on a first waveform.

[0014] As an example, the problems to be solved by this application include: how to determine the part of the first signal that carries communication information in the first multi-carrier symbol.

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

[0016] As an example, the problems to be solved by this application include: how to determine the value of the symbol transmitted by the first signal on the first resource set.

[0017] As an example, the characteristics of the above method include: in this application, by making the value of the symbol transmitted on the resource units in the first set of resource units depend on a first waveform, the above problem is solved.

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

[0019] As an example, the characteristics of the above method include: the integrated waveform of ISAC in this application is designed based on orthogonal frequency-domain resources, and frequency-domain resources are respectively allocated to the part of the first signal that carries communication information and the part that does not carry communication information, thereby solving the above problem at the same time.

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

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

[0022] As an embodiment, the characteristics of the above method include that the part of the first signal located in the first set of resource units carries sensing information.

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

[0024] As an embodiment, the characteristics of the above method include that when the number of resource units included in the first set of resource units is 0, all of the first signal is used for communication, realizing the fallback from the ISAC system to the communication system.

[0025] As an embodiment, the advantages of the above method include that this application supports ISAC technology. While the wireless network is performing high-quality communication interactions, it can achieve high-precision and refined sensing functions, thereby improving the spectral efficiency, energy efficiency, and hardware efficiency of the system, and further obtaining integration gain and cooperation gain.

[0026] As an embodiment, the advantages of the above method include obtaining a flexible trade-off between communication performance and sensing performance.

[0027] As an embodiment, the advantages of the above method include that the value of the symbol transmitted in the resource unit depends on the waveform used during actual transmission, which is beneficial to the expansion of waveforms in network design and is compatible with various integrated waveform designs.

[0028] As an embodiment, the advantages of the above method include achieving the fusion between the communication network and the sensing network with relatively small changes to the current standard, reducing the modification cost to the existing network.

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

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

[0031] As an embodiment, the characteristics of the above method include that when the time-domain resources occupied by the first set of resource units, the frequency-domain position of the resource units 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 sensing is based on the accuracy of time delay and Doppler estimation. The frequency-domain resource positions occupied by the first resource set in different carrier symbols are different. In the present application, the occupied frequency-domain positions in a given multi-carrier symbol depend on the integrated waveform design to improve the accuracy of radar sensing.

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

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

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

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

[0037] As an embodiment, the problems to be solved by the present application include: how to implement the sensing function of the first signal.

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

[0039] As an embodiment, the characteristics of the above method include: a part 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 both communication and sensing simultaneously.

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

[0042] As an embodiment, the advantages of the above method include: achieving the fusion between the communication network and the sensing network with less modification to the current standard, and reducing the modification cost to the existing network.

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

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

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

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

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

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

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

[0050] As an embodiment, the advantages of the above method include: improving the anti-interference ability of communication signals.

[0051] As an embodiment, the advantages 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 element set includes all resource elements included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and all of the first signal is used for sensing.

[0053] As an embodiment, the problems to be solved by the present application include: how to achieve the 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 all of the first signal is used for sensing by the first signaling indicating that the first resource element set includes all resource elements included in the first multi-carrier symbol, thereby achieving the fallback from ISAC to a full sensing system, and thus solving the above problems.

[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 multipath effects, but at the same time, it will lead to a reduction in the energy utilization rate of the sensing system, and it is easy to sense false targets, thereby reducing the sensing performance. Therefore, in the present application, when all of the first signal is used for sensing, it does not include a cyclic prefix to improve the sensing performance.

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

[0057] As an embodiment, the advantages of the above method include: The fact that the first signal does not include a cyclic prefix is conducive to improving energy utilization efficiency and reducing the false alarm probability in radar sensing.

[0058] As an embodiment, the advantages of the above method include: The first signal may include a blank guard interval, which can avoid false targets introduced by the cyclic prefix while combating multipath effects, and effectively prevent inter-carrier interference and inter-symbol interference.

[0059] As an embodiment, the advantages of the above method include: Implementing the fallback from ISAC to a full sensing system.

[0060] As an embodiment, the advantages of the above method include: Improving the sensing performance of sensing signals transmitted based on a 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, where M1 is a positive integer greater than 1.

[0062] As an embodiment, the problems to be solved by the present application include: How does the first node determine the first waveform?

[0063] As an embodiment, the characteristics of the above method include: The present application solves the above problem by indicating the first waveform from M1 candidate waveforms through the first signaling.

[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. By using dynamic signaling to indicate the waveform, a waveform with better communication performance or better sensing performance can be selected based on different requirements of communication and sensing in different scenarios.

[0066] As an embodiment, the advantages of the above method include: It is conducive to adapting to a rapidly changing environment and meeting different requirements for communication and sensing in different environments.

[0067] As an embodiment, the advantages of the above method include: Better realizing the integration of communication and sensing.

[0068] As an embodiment, the advantages of the above method include: Improving spectral efficiency.

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

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

[0071] As an embodiment, the problems to be solved by the present application include: the value of the symbol transmitted on the resource units in the first resource unit set in the present application is determined after performing FFT transformation on the first waveform, thereby solving the above problems.

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

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

[0074] As an embodiment, the features of the above method include: the first resource unit set includes K1 resource units, and the largest K1 complex values obtained after performing FFT transformation on the first waveform correspond to the K1 resource units.

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

[0076] As an embodiment, the advantages of the above method include: being easy to implement and having a relatively small modification cost to the existing network.

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

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

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

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

[0081] where a part of the first signal carried on the resource units outside the first resource unit set carries communication information, and the value of the symbol transmitted on the resource units in the first resource unit set depends on the first waveform.

[0082] According to one aspect of the present application, the method is characterized in that a frequency domain position of resource elements occupied by the first resource element set in the first multi-carrier symbol depends on the first waveform.

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

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

[0085] According to one aspect of the present application, the method is characterized in that 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, and all of the first signals are used for sensing.

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

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

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

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

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

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

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

[0094] A first receiver, receiving first signaling, where the first signaling indicates a first resource element set; receiving a first signal in a first multi-carrier symbol;

[0095] Among them, a part of the first signal carried in resource elements outside the first resource element set carries communication information, and the value of the symbol transmitted on the resource elements in the first resource element set depends on the first waveform.

[0096] This application discloses a device for a second node used in wireless communication signal transmission, which includes:

[0097] A first transmitter that sends a first signaling, where the first signaling indicates a first resource element set; and sends a first signal in a first multi-carrier symbol;

[0098] Among them, a part of the first signal carried in resource elements outside the first resource element set carries communication information, and the value of the symbol transmitted on the resource elements in the first resource element set depends on the first waveform.

[0099] As an embodiment, compared with traditional solutions, this application has the following advantageous but not limited advantages:

[0100] This application supports the ISAC technology. While the wireless network performs high-quality communication interactions, it can achieve high-precision and refined sensing functions, thereby improving the spectral efficiency, energy efficiency, and hardware efficiency of the system, and further obtaining integration gain and cooperation gain;

[0101] While making relatively small changes to the current standard, it realizes the integration between the communication network and the sensing network, reducing the modification cost to the existing network;

[0102] It is beneficial to adapt to a rapidly changing environment and meet different requirements for communication and sensing in different environments;

[0103] It can realize the fallback from ISAC to a full sensing system or a full communication system. Description of the Drawings

[0104] By reading the detailed description of the non-limiting embodiments with reference to the following drawings, other features, purposes, and advantages of this application will become more obvious:

[0105] Figure 1 Shows a flowchart of the transmission of a first node according to an embodiment of this application;

[0106] Figure 2 Shows a schematic diagram of a network architecture according to an embodiment of this application;

[0107] Figure 3 Shows a schematic diagram of an embodiment of the radio protocol architecture of the user plane and the control plane according to an embodiment of this application;

[0108] Figure 4Shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0109] Figure 5 Shows a flowchart of transmission between a first node and a second node according to an embodiment of the present application;

[0110] Figure 6 Shows a schematic diagram of a first set of resource units according to an embodiment of the present application;

[0111] Figure 7 Shows a first schematic diagram of a part of a first signal in a first set of resource units according to an embodiment of the present application;

[0112] Figure 8 Shows a second schematic diagram of a part of a first signal in a first set of resource units according to an embodiment of the present application;

[0113] Figure 9 Shows a schematic diagram in which all of the first signals are used for sensing according to an embodiment of the present application;

[0114] Figure 10 Shows a schematic diagram in which a first signaling indicates a first waveform according to an embodiment of the present application;

[0115] Figure 11 Shows a schematic diagram of the numerical values of symbols transmitted on resource units in a first set of resource units according to an embodiment of the present application;

[0116] Figure 12 Shows a block diagram of a processing device in a first node according to an embodiment of the present application;

[0117] Figure 13 Shows a block diagram of a processing device in a second node according to an embodiment of the present application. Detailed implementation manners

[0118] The technical solutions of the present application will be further described in detail below with reference to the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0119] Example 1

[0120] Embodiment 1 exemplifies a flowchart of transmission of a first node according to an embodiment of the present application, as shown in the accompanying Figure 1 figures. In the accompanying Figure 1 figures, each box represents a step. In particular, the order of the steps in the box does not represent a specific temporal sequence between the steps.

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

[0122] In Embodiment 1, a part of the first signal carried in resource units outside the first set of resource units carries communication information, and the value of the symbol transmitted on the resource units in the first set of resource units depends on a first waveform.

[0123] As an embodiment, the first node is the first node described 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 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 set of resource units.

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

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

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

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

[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, among the multiple resource units, there are two resource units whose occupied frequency - domain resources are continuous.

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

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

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

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

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

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

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

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

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

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

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

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

[0160] As an example, one resource unit described in this application is used to transmit one modulation symbol.

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

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

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

[0164] As an example, the first signaling explicitly indicates the first set of resource units.

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

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

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

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

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

[0171] As a sub - embodiment of this embodiment, the explicit indication includes indicating the frequency offset value of the 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 this 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 this application refers to: the resource unit with the lowest center frequency point included in the first resource unit set.

[0174] As an embodiment, the first resource unit included in the first resource unit set in this application refers to: the resource unit with the smallest sub - carrier index included in the first resource unit set.

[0175] As an embodiment, the first resource unit included in the first resource unit set in this application refers to: the resource unit with the smallest sub - carrier 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 in this application refers to: Resource Block, RB.

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

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

[0179] As an embodiment, the resource block in this application includes time - frequency resources.

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

[0181] Typically, one 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 common resource block index.

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

[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 ISAC is active.

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

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

[0190] As a sub - embodiment of this embodiment, the implicit indication includes indicating the 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 set of resource units.

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

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

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

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

[0197] As an example, the first signaling indicates the positions of the subcarriers occupied by the first set of resource units in a multi-carrier symbol.

[0198] As an example, the first signaling indicates the positions of the subcarriers occupied by the first set of resource units in a resource block.

[0199] As an example, the first signaling includes a first field that indicates the first set of resource units.

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

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

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

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

[0204] As a sub-example of this example, the first field indicates whether the first set of resource units is active.

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

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

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

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

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

[0210] As a sub-example of this example, the first field indicates the first set of resource units from multiple candidate sets of resource units.

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

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

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

[0214] As a sub - 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 an 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 example, the first multi-carrier symbol includes OCDM-OFDM (Orthogonal Chirp Division Multiplexing-OFDM) symbols.

[0225] As an example, the first multi-carrier symbol is obtained after the output of a transform precoder undergoes OFDM symbol generation.

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

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

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

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

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

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

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

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

[0234] As an example, the first signal includes a sensing signal.

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

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

[0237] As an example, the first signal includes a sensing signal and a communication signal.

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

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

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

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

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

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

[0244] As an example, 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, SRS (Sounding Reference Signal) request.

[0245] As an example, 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 example, 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 example, the frequency domain resources occupied by the first signal include the frequency domain resources occupied by the first resource unit set.

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

[0249] As an example, 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 example, a part of the first signal in the resource units outside the first resource unit set carries communication information.

[0251] As an embodiment, the first set of resource units 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 outside the K1 resource units carry communication information.

[0254] As a sub-embodiment of this embodiment, the resource units among the K0 resource units and outside 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 for obtaining 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 units are generated through modulation.

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

[0265] As an embodiment, the meaning of carrying communication information includes: the information carried is unknown to the first node.

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

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

[0268] As an embodiment, the meaning of carrying communication information includes: symbols in corresponding resource units are used for the 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 corresponding resource units are used for the transmission of SSB.

[0270] As an embodiment, the meaning of carrying communication information includes: symbols in corresponding resource units are used for the transmission of RS (Reference Signal) 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 in this application refers to: Synchronization Signal Block.

[0273] As an embodiment, the SSB in this application refers to: SS (Synchronization Signal) / PBCH (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 value of the symbol transmitted on the resource element in the first resource element set depends 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 an LFMCW (Linear Frequency Modulation Continuous Wave) waveform.

[0280] As an embodiment, the first waveform is an SFMCW (Step-FMCW) waveform.

[0281] As an embodiment, the first waveform is a TFMCW (Trapezoidal-FMCW) 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 an 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 adopted in a 6G and subsequent system.

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

[0292] As an embodiment, the value of the symbol transmitted on the resource element in the first resource element set is predefined.

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

[0294] As an embodiment, the value of the symbol transmitted on the resource element in the first resource element set is 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 value of the symbol transmitted on the resource element in the first resource element 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 value of the symbol transmitted on the resource element in the first resource element set depends on the first waveform includes: the first waveform is the transmission waveform of at least a part of the first signal on the resource element in the first resource element set.

[0298] As an embodiment, the meaning that the value of the symbol transmitted on the resource element in the first resource element 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 example, the meaning that the value of the symbol transmitted on the resource units in the first resource unit set depends on the first waveform includes: the first waveform is the transmission waveform of at least a part of the first signal on the resource units in the first resource unit set of the first multi-carrier symbol.

[0300] As an example, the meaning that the value of the symbol transmitted on the resource units in the first resource unit set depends on the first waveform includes: the first waveform is used for the generation of the first signal.

[0301] As an example, the meaning that the value of the symbol transmitted on the resource units in the first resource unit set depends on the first waveform includes: the first waveform is used for the generation of at least a part of the first signal on the resource units in the first resource unit set.

[0302] As an example, the meaning that the value of the symbol transmitted on the resource units in the first resource unit set depends on the first waveform includes: the first waveform is used for the generation of the value of the symbol transmitted on at least the resource units in the first resource unit set of the first signal.

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

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

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

[0306] As an example, the meaning that the value of the symbol transmitted on the resource units in the first resource unit set depends on the first waveform includes: the sender of the first signal sends the first signal using the first waveform.

[0307] As an example, the meaning that the value of the symbol transmitted on the resource units in the first resource unit set depends on the first waveform includes: the sender of the first signal sends at least a part of the first signal on the resource units in the first resource unit set using the first waveform.

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

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

[0310] Example 2

[0311] Embodiment 2 exemplifies a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the appendix Figure 2 as follows.

[0312] The appendix Figure 2 illustrates the network architecture 200. The network architecture 200 is a network architecture of LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G system, 5G-Advanced and future 6G system. The network architectures of LTE, LTE-A, 5G system, 5G-Advanced and future 6G system are 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 term; the 6G network architecture may be referred to as 6GS (6G System) / EPS or some other suitable term. The network architecture 200 may include one or more UEs 201, RAN (Next Generation Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 may be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the appendix Figure 2As shown, the network architecture 200 provides packet switching services. However, those skilled in the art will readily understand that the various concepts presented throughout this application can be extended to networks that provide circuit switching services. The RAN 202 includes 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 other nodes 204 via the Xn interface (e.g., backhaul). Node 203 can also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmitter Receiver Point, transmission and reception node), or some other suitable term. Node 203 provides an access point to the core network 210 for the UE 201; the core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or alternatively, the core network 210 is a 6GC. Examples of the UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, Personal Digital Assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, automobiles, wearable devices, or any other similar functional device. Those skilled in the art may also refer to the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. Node 203 is connected to the core network 210 via the S1 / NG interface.The core network 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MME / AMF / SMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is a control node that processes signaling between the UE 201 and the 5G-CN / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user IP (Internet Protocol) packets are transmitted through the S-GW / UPF 212, and the S-GW / UPF 212 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-corresponding Internet protocol services, which may specifically include the Internet, an intranet, an 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 includes a vehicle such as 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 example, the node 203 is a pico cell base station.

[0321] As an example, the node 203 is a femtocell.

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

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

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

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

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

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

[0328] As an example, the node 204 is a pico cell base station.

[0329] As an example, the node 204 is a femtocell.

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

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

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

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

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

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

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

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

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

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

[0340] As an example, the UE 201 and the node 203 are connected through the Uu air interface.

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

[0342] As an example, the receiver of the first signaling includes the UE 201.

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

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

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

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

[0347] As an example, the UE 201 supports at least the UE-TRP bistatic sensing model.

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

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

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

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

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

[0353] As an example, the UE 201 supports at least the TRP monostatic sensing model.

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

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

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

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

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

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

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

[0361] Example 3

[0362] Embodiment 3 exemplifies a schematic diagram of an embodiment of the radio protocol architecture of the user plane and the control plane according to an embodiment of the present application, as shown in the appendix Figure 3 as shown.

[0363] Figure 3 is a schematic diagram illustrating an embodiment of the radio protocol architecture for the user plane 350 and the control plane 300, Figure 3Show the radio protocol architecture of the control plane 300 for a first communication node device (UE or RSU (Road Side Unit) in V2X (Vehicle to Everything), in-vehicle device or in-vehicle communication module) and a second node device (gNB, UE or RSU in V2X, in-vehicle device or in-vehicle communication module), or 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 as PHY 301 in this document. L2 305 is above PHY 301 and is responsible for the link between the first node device and the second node device, or between two UEs, through PHY 301. L2 305 includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303 and a PDCP (Packet Data Convergence Protocol) sublayer 304, and these sublayers 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 handover support for 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 disordered reception due to HARQ (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) 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 of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling between the second communication node device and the first communication node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). For the radio protocol architecture of the first communication node device and the second communication node device in the user plane 350, the corresponding layers and sub-layers in the control plane 300 are generally the same for the physical layer 351, the PDCP sub-layer 354 in L2 355, the RLC sub-layer 353 in L2 355, and the MAC sub-layer 352 in L2 355. However, the PDCP sub-layer 354 also provides header compression for upper layer data packets to reduce radio transmission overhead. The L2 355 in the user plane 350 also includes an SDAP (Service Data Adaptation Protocol) sub-layer 356. The SDAP sub-layer 356 is responsible for the mapping between QoS (Quality of Service) flows and data radio bearers (DRBs) to support service diversity. Although not shown, the first communication node device may have several upper layers above L2 355, including a network layer (e.g., an IP (Internet Protocol) layer) that terminates at the P-GW on the network side and an application layer that terminates at the other end of the connection (e.g., a remote UE, a server, etc.).

[0364] As an example, the Figure 3 radio protocol architecture in is applicable to the first node in this application.

[0365] As an example, the Figure 3 radio protocol architecture in is applicable to the second node in this application.

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

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

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

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

[0370] As an example, the higher layer in this application includes the MAC layer.

[0371] As an example, the higher layer in this application includes the RRC layer.

[0372] Example 4

[0373] Example 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 the attached Figure 4 figure. The attached Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 that communicate with each other in an access network.

[0374] The first communication device 410 includes a controller / processor 475, a memory 476, a receiving processor 470, a transmitting processor 416, a multi-antenna receiving processor 472, a multi-antenna transmitting 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 transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

[0376] In the transmission from the first communication device 410 to the second communication device 450, at the first communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements the functions of L2. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the second communication 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 communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for L1 (i.e., the physical layer). The transmit processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 450, and 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), M-ary quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital space precoding on the encoded and modulated symbols, including codebook-based precoding, non-codebook-based precoding, and beamforming processing, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to subcarriers, multiplexes the modulated symbols with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying time-domain multi-carrier symbol streams. Subsequently, the multi-antenna transmit processor 471 performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol streams. Each transmitter 418 converts the baseband multi-carrier symbol streams provided by the multi-antenna transmit processor 471 into radio frequency streams and then provides them to different antennas 420.

[0377] In the transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives signals via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier, and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 456. The receiving processor 456 and the multi-antenna receiving processor 458 perform various signal processing functions of L1. The multi-antenna receiving processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receiving processor 456 uses the Fast Fourier Transform (FFT) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 456, where the reference signal will be used for channel estimation, and the data signal is recovered in the multi-antenna receiving processor 458 for any parallel streams destined for the second communication device 450 after multi-antenna detection. The symbols on each parallel stream are demodulated and recovered in the receiving processor 456, and soft decisions are generated. Subsequently, the receiving processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 performs the functions of L2. 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 the transmission and the logical channel, packet reassembly, decryption, header decompression, control signal processing to recover the upper layer data packets from the core network. Subsequently, the upper layer data packets are 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 the Acknowledgement (ACK) and / or Negative Acknowledgement (NACK) protocols to support HARQ operations.

[0378] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, the 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 transmission function at the first communication device 410 described in 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 communication device 410, and implements L2 functions for 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 communication device 410. The transmit processor 468 performs modulation mapping and channel coding processing. The multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated parallel streams into multi-carrier / single-carrier symbol streams, and after passing through the analog precoding / beamforming operation in the multi-antenna transmit processor 457, provides them 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 radio frequency symbol stream and then provides it to the antenna 452.

[0379] In the transmission from the second communication device 450 to the first communication device 410, the functions at the first communication device 410 are similar to the receiving functions at the second communication device 450 described in the transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives radio frequency signals through its corresponding antenna 420, converts the received radio frequency 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 jointly implement the L1 functions. The controller / processor 475 implements the L2 functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between the transport 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 the ACK and / or NACK protocols to support HARQ operations.

[0380] As an example, 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 with the at least one processor. The second communication device 450 is configured to at least receive first signaling that indicates a first set of resource units; receive a first signal in a first multi-carrier symbol; a portion of the first signal in resource units outside the first set of resource units carries communication information, and the value of a symbol transmitted on a resource unit in the first set of resource units depends on a first waveform.

[0381] As an example, the second communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: receiving first signaling; receiving a first signal in a first multi-carrier symbol.

[0382] As an example, 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 with the at least one processor. The first communication device 410 is configured to at least send first signaling that indicates a first set of resource units; send a first signal in a first multi-carrier symbol; a portion of the first signal in resource units outside the first set of resource units carries communication information, and the value of a symbol transmitted on a resource unit in the first set of resource units depends on a first waveform.

[0383] As an example, the first communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: sending first signaling; sending a first signal in a first multi-carrier symbol.

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

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

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

[0387] As an example, 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; 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 a first signal in a first multi-carrier symbol.

[0388] Example 5

[0389] Embodiment 5 exemplifies a flowchart of transmission between a first node and a second node according to an embodiment of the present application. In the appendix Figure 5 The first node U1 communicates with the second node N2 through a wireless link. It should be specifically noted that the order in this embodiment does not limit the signal transmission order and the implementation order in the present application.

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

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

[0392] In Embodiment 5, the first signaling indicates a first set of resource units; a part of the first signal carries communication information in resource units outside the first set of resource units, and the value of the symbol transmitted on the resource units in the first set of resource units depends on the first waveform.

[0393] As an example, the first node U1 is the first node in the present application.

[0394] As an example, the second node N2 is the second node in the present application.

[0395] As an embodiment, the air interface between the second node N2 and the first node U1 includes a radio 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 radio 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 radio interface between user equipments.

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

[0399] As an embodiment, the first signaling is transmitted on a physical layer control channel (only for transmitting 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 physical layer channel dedicated for sensing.

[0403] As an embodiment, the first signal is transmitted on a physical layer channel for transmitting user data and sensing signals.

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

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

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

[0407] Example 6

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

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

[0410] 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 first waveform.

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

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

[0413] As an embodiment, 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.

[0414] As an embodiment, 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.

[0415] As an embodiment, 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.

[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 TimeFrequency 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 position of the time slot in which the first waveform and the first multi-carrier symbol are located together 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 position of the resource units occupied by the first resource unit set in the first multi-carrier symbol is 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 position of the resource units occupied by the first resource unit set in the first multi-carrier symbol is obtained by looking up a table.

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

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

[0429] As a sub-embodiment of this embodiment, the plurality of 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 plurality of candidate resource sets.

[0431] Example 7

[0432] Embodiment 7 exemplifies the first schematic diagram of the part of the first signal in the first resource unit set according to an embodiment of the present application, as shown in the appendix Figure 7 shown. In the appendix Figure 7 the part of the first signal in the first resource unit set carries a sensing signal.

[0433] In Embodiment 7, the part of the first signal in the first resource unit set carries a sensing signal.

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

[0435] As an example, a part of the first signal in the first resource element set is used for sensing.

[0436] As an example, a part of the first signal in the first resource element set is used for measurement.

[0437] As an example, a part of the first signal in the first resource element set is used for positioning.

[0438] As an example, a part of the first signal in the first resource element set is used for uplink synchronization.

[0439] As an example, a part of the first signal in the first resource element set is used for channel estimation.

[0440] As an example, a part of the first signal in the first resource element set is used to obtain the speed information of the first node.

[0441] As an example, a part of the first signal in the first resource element set is used to obtain the angle information of the first node.

[0442] As an example, a part of the first signal in the first resource element set is used to obtain the location information of the first node.

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

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

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

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

[0447] As an example, the second node described in this application senses the first node through the part of the first signal in the first resource element set.

[0448] As an example, the second node described in this application detects the first node through the part of the first signal in the first resource element set.

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

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

[0451] As an embodiment, in the present application, the second node senses 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 positions 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 senses the first node through the feedback signal of the first node for 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 the feedback signal of the first node for 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 the feedback signal of the first node for the portion of the first signal in the first resource unit set.

[0458] As an embodiment, in the present application, the second node positions the first node through the feedback signal of the first node for 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, a part of the first signal in the first resource element set does not carry user information.

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

[0463] As an embodiment, a part of the first signal in the first resource element set is not used for communication - purpose transmission.

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

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

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

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

[0468] As an embodiment, the first node performs frequency - shift estimation on a part of the first signal carrying communication information based on a part of the first signal carrying sensing information.

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

[0470] Example 8

[0471] Embodiment 8 exemplifies a second schematic diagram of a part of the first signal in the first resource element set according to an embodiment of the present application, as shown in the appendix Figure 8 as follows.

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

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

[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)-specific.

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

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

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

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

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

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

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

[0487] Example 9

[0488] Embodiment 9 exemplifies a schematic diagram in which all the first signals according to an embodiment of the present application are used for sensing, as shown in the appendix Figure 9 as shown. In the appendix Figure 9 , the horizontal axis represents frequency. A rectangular filled area represents the frequency domain resources occupied by a resource unit in the frequency domain, and a rectangle filled with a cross diamond represents the resource units of a first resource unit set.

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

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

[0491] As an embodiment, the meaning that the first signal does not include a cyclic prefix includes that the part reserved for the cyclic prefix in the first signal is used to transmit the sensing signal.

[0492] As an embodiment, the meaning that the first signal does not include a cyclic prefix includes that the part reserved for the cyclic prefix in the first signal is used as a guard interval.

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

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

[0495] As an embodiment, when the first signaling indicates that the first resource unit set includes all the resource units 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 unit set includes all the resource units included in the first multi-carrier symbol, all the resource units in the first signal are used to transmit the sensing signal.

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

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

[0499] As an example, the first signaling instructs the ISAC to fallback to the sensing-only mode.

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

[0501] As an example, the first signaling instructs that the first signal is a sensing signal.

[0502] As an example, the first signaling instructs that the first signal is a radar signal.

[0503] As an example, the first signaling instructs that the first signal is a reflected signal.

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

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

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

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

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

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

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

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

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

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

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

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

[0516] As an example, the first signal is transmitted in an omnidirectional manner; the above method can expand the sensing range.

[0517] As an example, the first signal is transmitted in a beamforming manner; the above method can obtain accurate sensing information.

[0518] Example 10

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

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

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

[0522] As an example, the RNTI (Radio network temporary identifier) of the first signaling indicates the first waveform from the M1 candidate waveforms.

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

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

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

[0526] As an example, at least one waveform only used for communication is included in the M1 candidate waveforms.

[0527] As an example, at least one waveform only used for sensing is included in the M1 candidate waveforms.

[0528] As an example, at least one waveform used for both communication and sensing is included in the M1 candidate waveforms.

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

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

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

[0532] As an example, among the M1 candidate waveforms, there are at least the first two of the waveforms simultaneously used for sensing and communication, the waveforms only used for communication, and the waveforms only used for sensing.

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

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

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

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

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

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

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

[0540] As an example, the M1 candidate waveforms include PRO-FMCW waveforms.

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

[0542] As an example, the M1 candidate waveforms include PMCW waveforms.

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

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

[0545] As an example, the M1 candidate waveforms include PDR waveforms.

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

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

[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 sensing 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 ISAC is active.

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

[0561] As a sub - embodiment of this embodiment, the implicit indication includes indicating whether the first signal is used for both 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 among the M1 candidate waveforms.

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

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

[0566] As an embodiment, the first signaling includes a second domain, and the second domain in the first signaling indicates the first waveform from among 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, and 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 domain indicates a switch 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 domain includes only one bit.

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

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

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

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

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

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

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

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

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

[0580] As a sub - example of this example, the first waveform includes an integrated waveform that is simultaneously used for communication and sensing in communication - sensing integration.

[0581] As an example, 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 units occupied by the first resource unit set in the first multi - carrier symbol; M1 is a positive integer greater than 1.

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

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

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

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

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

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

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

[0589] Example 11

[0590] Example 11 exemplifies a schematic diagram of the value of the symbol transmitted on the resource units in the first resource unit set according to an example of the present application, as shown in the appendix Figure 11 shown. In the appendix Figure 11 the value of the symbol transmitted on the resource units in the first resource unit set is determined by performing an FFT transformation on the first waveform.

[0591] In Embodiment 11, the value of the symbol transmitted on the resource element in the first resource element set is determined by performing FFT transformation on the first waveform.

[0592] As an embodiment, the value of the symbol transmitted on the resource element in the first resource element set is determined by performing FFT transformation on the first waveform.

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

[0594] As an embodiment, the value of the symbol in the present application includes an amplitude and a phase.

[0595] As an embodiment, one resource element transmits one symbol in the present application.

[0596] As an embodiment, one resource element transmits the value of one symbol in the present application.

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

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

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

[0600] As an affiliated embodiment of this sub-embodiment, N1 is equal to K1 in the present application.

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

[0602] As an affiliated 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 symbol in this application is different from the multi - carrier symbol.

[0605] As an embodiment, the multi - carrier symbol in this application includes 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 this application, as shown in the appendix Figure 12 In the appendix Figure 12 shown. In the appendix

[0608] In Embodiment 12, the first receiver 1201 receives a first signaling, the first signaling indicates a first set of resource units; and receives a first signal in a first multi - carrier symbol.

[0609] In Embodiment 12, the part of the first signal carried in the resource units outside the first set of resource units carries communication information, and the value of the symbol transmitted on the resource units in the first set of resource units depends on the first waveform.

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

[0611] As an embodiment, the part of the first signal in the first set of resource units carries a sensing signal.

[0612] As an embodiment, the part of the first signal in the first set of resource units is used as a reference signal for the symbol of the first signal on the resource units outside the first set of resource units.

[0613] As an embodiment, the first signaling indicates that the first set of resource units includes all the resource units included in the first multi - carrier symbol, the first signal does not include a cyclic prefix, and all of the first signals are 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 value of the symbol transmitted on the resource units in the first set of resource units is determined by performing an FFT transform on the first waveform.

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

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

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

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

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

[0621] As an embodiment, the first waveform is the transmission waveform of the part of the first signal on the resource units in at least the first resource unit set of the first multi-carrier symbol.

[0622] As an embodiment, the value of the symbol transmitted on the resource units in the first resource unit set is predefined; the predefined value is determined by the first waveform.

[0623] As an embodiment, the value of the symbol transmitted on the resource units in the first resource unit set is obtained by looking up a table; the value obtained by looking up the table is determined by the first waveform.

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

[0625] As an embodiment, the first signal is used for communication, or the first signal is used for sensing, or the first signal is used for both communication and sensing simultaneously.

[0626] As an embodiment, in the present application, the second node senses the first node through the part 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 part 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 part 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 part 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 after being reflected by the third node, the first signal is received by the first 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 a 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 exemplifies a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in the appendix Figure 13 as shown. In the appendix Figure 13 , 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, and the first signaling indicates a first set of resource units; a first signal is sent in the first multi-carrier symbol.

[0637] In Embodiment 13, a part of the first signal carried in the resource units outside the first set of resource units carries communication information, and the value of the symbol transmitted on the resource units in the first set of resource units depends on the first waveform.

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

[0639] As an embodiment, a part of the first signal carried in the first set of resource units carries a sensing signal.

[0640] As an embodiment, a part of the first signal carried in the first set of resource units is used as a reference signal for the symbol of the first signal on the resource units outside the first set of resource units.

[0641] As an embodiment, the first signaling indicates that the first set of resource units includes all the resource units included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and all the first signals are 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 value of the symbol transmitted on the resource units in the first resource unit set is determined by performing an FFT transformation on the first waveform.

[0644] As an embodiment, the first waveform is a waveform adopted in a system of 6G and later.

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

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

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

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

[0649] As an embodiment, the first waveform is the transmission waveform of the part of the first signal on the resource units in at least the first resource unit set of the first multi-carrier symbol.

[0650] As an embodiment, the value of the symbol transmitted on the resource units in the first resource unit set is predefined; the predefined value is determined by the first waveform.

[0651] As an embodiment, the value of the symbol transmitted on the resource units in the first resource unit set is obtained by looking up a table; the value obtained by looking up the table is determined by the first waveform.

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

[0653] As an embodiment, the first signal is used for communication, or the first signal is used for sensing, or the first signal is used for both communication and sensing simultaneously.

[0654] As an embodiment, the second node senses the first node in the present 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 part of the first signal in the first resource unit set.

[0656] As an embodiment, the second node tracks the first node in the present application through the part of the first signal in the first resource element set.

[0657] As an embodiment, the second node locates the first node in the present application through the part of the first signal in the first resource element 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 then received by the first node in the present application; the first node in the present 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 a user equipment.

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

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

[0663] As an embodiment, the second node is a serving cell maintenance 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 of ordinary skill in the art can understand 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 disc, etc. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, each module unit in the above embodiments can be implemented in a hardware form or in the form of a software functional module. This application is not limited to any specific form of the 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 control airplanes, aircraft, small airplanes, mobile phones, tablet computers, notebooks, vehicle-mounted communication devices, transportation means, vehicles, RSU, wireless sensors, network 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, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base station or system device in this application includes, but is 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, RSU, drones, test equipment, such as transceiver devices or signaling testers that simulate some functions of the base station, and other wireless communication devices.

[0666] Those skilled in the art should understand that the present invention can be implemented in other specific forms without departing from its core or basic characteristics. Therefore, the currently disclosed embodiments should be considered as illustrative rather than restrictive in any case. The scope of the invention is determined by the appended claims rather than the foregoing description, and all modifications within the equivalent meaning and scope thereof are considered to be included therein.

Claims

1. A first node used for wireless communication signal transmission, characterized in that, Comprising: A first receiver, receiving a first signaling, the first signaling indicating a first set of resource elements; Receiving a first signal in a first multi-carrier symbol; Wherein, a part of the first signal in resource elements outside the first set of resource elements carries communication information, and the value of a symbol transmitted on a resource element in the first set of resource elements depends on a first waveform.

2. The first node according to claim 1, characterized in that, The frequency-domain position of the resource elements occupied by the first set of resource elements in the first multi-carrier symbol depends on the first waveform.

3. The first node according to claim 1 or 2, characterized in that, A part of the first signal in the first set of resource elements carries a sensing signal.

4. The first node according to any one of claims 1 to 3, characterized in that A part of the first signal in the first set of resource elements is used as a reference signal for a symbol of the first signal on a resource element outside the first set of resource elements.

5. The first node according to any one of claims 1 to 4, characterized in that The first signaling indicates that the first set of resource elements includes all resource elements included in the first multi-carrier symbol, the first signal does not include a cyclic prefix, and the first signal is all used for sensing.

6. The first node according to any one of claims 1 to 5, 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 any one of claims 1 to 6, characterized in that, The value of a symbol transmitted on a resource element in the first set of resource elements is determined by performing an FFT transformation on the first waveform.

8. A second node used for wireless communication signal transmission, characterized in that, Comprising: A first transmitter, transmitting a first signaling, the first signaling indicating a first set of resource elements; Transmitting a first signal in a first multi-carrier symbol; Wherein, a part of the first signal in resource elements outside the first set of resource elements carries communication information, and the value of a symbol transmitted on a resource element in the first set of resource elements depends on a first waveform.

9. A method for a first node used in wireless communication signal transmission, characterized in that, Comprising: Receiving a first signaling, the first signaling indicating a first set of resource elements; Receiving a first signal in a first multi-carrier symbol; Wherein, a part of the first signal in resource elements outside the first set of resource elements carries communication information, and the value of a symbol transmitted on a resource element in the first set of resource elements depends on a first waveform.

10. A method for a second node used for wireless communication signal transmission, characterized in that, Comprising: Transmitting a first signaling, the first signaling indicating a first set of resource elements; Transmitting a first signal in a first multi-carrier symbol; Wherein, a part of the first signal in resource elements outside the first set of resource elements carries communication information, and the value of a symbol transmitted on a resource element in the first set of resource elements depends on a first waveform.

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