Method and device used in wireless communication sensing node

Abstract

The invention discloses a method and an apparatus in a node used for wireless communication perception. A first node sends a first sensing waveform, the first sensing waveform occupies a plurality of multi-carrier symbols and a plurality of cyclic prefixes in a time domain, the plurality of multi-carrier symbols and the plurality of cyclic prefixes are in one-to-one correspondence, and each cyclic prefix is in front of the corresponding multi-carrier symbol; for any one of the plurality of multi-carrier symbols, a starting phase of the first sensing waveform in the any one multi-carrier symbol depends on a starting moment of the any one multi-carrier symbol when the plurality of multi-carrier symbols are assumed to be continuously arranged in time. 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 apparatuses in wireless communication and sensing systems, and particularly to methods and apparatuses 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 trend of integrating communication and sensing capabilities in the network becomes increasingly obvious. The integrated communication and sensing technology, that is, the integrated sensing and communication (ISAC) technology, refers to the 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 conducted 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), Feasibility Study on Integrated Sensing and Communication, adopted by the 3GPP SA #100 plenary session; in December 2023, the 3GPP RAN (Radio Access Network) #102 plenary session adopted the SI (Study Item), Study on channel modelling for Integrated Sensing And Communication (ISAC) for NR. The RAN1 working group will also lead research on ISAC channel modelling and others with the goal of supporting the object detection and tracking scenario starting from the channel model in 38.901 in the Rel-19 phase; ISAC is also 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; generally speaking, the current integrated sensing and communication waveform design is divided into two categories: waveform design based on orthogonal resource allocation and waveform design based on resource reuse. However, due to the strong specialization 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 scheme for different scenarios (such as other non-ISAC scenarios, including but not limited to Reconfigurable Intelligent Surface (RIS), Vehicle to Everything (V2X), SideLink (SL), 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.) also helps to reduce 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 embodiment, the interpretation of the terms in this application refers to the definitions in the 3GPP specification protocol series TS40.

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

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

[0012] Transmit a first sensing waveform, where the first sensing waveform occupies a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, and the plurality of multi-carrier symbols correspond one-to-one with the plurality of cyclic prefixes, and each cyclic prefix immediately precedes the corresponding multi-carrier symbol;

[0013] Among them, for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

[0014] As an embodiment, the problems to be solved in this application include: how to determine the starting phase of the first sensing waveform in a given multi-carrier symbol.

[0015] As an embodiment, the characteristics of the above method include: in this application, by making the starting phase of the sensing waveform in a given multi-carrier symbol depend on the starting moment of the given multi-carrier symbol when the plurality of multi-carrier symbols occupied by the sensing waveform are arranged continuously in the time domain, the above problems are solved.

[0016] As an embodiment, the problems to be solved in this application include: integrated waveform design in ISAC.

[0017] As an embodiment, the characteristics of the above method include: in radar design, the sensing waveform needs to have good autocorrelation characteristics; in a cellular network, that is, in the integrated waveform design of ISAC, the sensing waveform also needs to have good cross-correlation characteristics to distinguish the sensing waveforms transmitted by different transmitters; in this application, the phases of the sensing waveforms transmitted in adjacent multi-carrier symbols are kept continuous to ensure good autocorrelation and cross-correlation characteristics of the sensing waveforms, thereby realizing the integrated waveform design of ISAC.

[0018] As an embodiment, the characteristics of the above method include: the first sensing waveform appears in a periodic time unit in the time domain, and each time it appears, it belongs to one time unit in time and occupies at least one multi-carrier symbol and at least one cyclic prefix in the one time unit; the time unit includes continuous time domain resources.

[0019] As an embodiment, the characteristics of the above method include: the first sensing waveform is a continuous waveform in the time domain.

[0020] As an embodiment, the characteristics of the above method include: there is no phase jump in the first sensing waveform among adjacent symbols.

[0021] As an embodiment, the characteristics of the above method include: the time-domain resources composed of the multiple multi-carrier symbols and the multiple cyclic prefixes occupied by the first sensing waveform are continuous.

[0022] As an embodiment, the characteristics of the above method include: the time-domain resources composed of at least two multi-carrier symbols and the corresponding cyclic prefixes among the multiple multi-carrier symbols and the multiple cyclic prefixes occupied by the first sensing waveform are continuous.

[0023] As an embodiment, the advantages of the above method include: this application supports ISAC technology. While the wireless network conducts 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.

[0024] As an embodiment, the advantages of the above method include: in practical applications, radar signals are often affected by the multipath effect, resulting in changes in the signal delay and phase; the cyclic prefix can avoid inter-carrier interference and inter-symbol interference caused by the multipath effect, and improve the accuracy of signal detection and positioning; at the same time, retaining the cyclic prefix is beneficial to the mutual integration with the communication system and enhances the robustness of the communication system.

[0025] As an embodiment, the advantages of the above method include: realizing the integrated waveform design of ISAC.

[0026] As an embodiment, the advantages of the above method include: achieving the integration between the communication network and the sensing network while making relatively small changes to the current standard, and reducing the modification cost to the existing network.

[0027] As an embodiment, the advantages of the above method include: ensuring good autocorrelation and cross-correlation characteristics of the radar waveform and ensuring the accuracy of the sensing function.

[0028] According to one aspect of the present application, the above method is characterized in that it includes:

[0029] Transmit a first communication signal, and at least one multi-carrier symbol among the multiple multi-carrier symbols is simultaneously occupied by the first sensing waveform and the first communication signal.

[0030] Among them, there is no time-frequency unit occupied by both the first sensing waveform and the first communication signal at the same time; one time-frequency unit occupies one multi-carrier symbol in the time domain and one sub-carrier in the frequency domain.

[0031] As an embodiment, the problems to be solved by the present application include: integrated waveform design in ISAC.

[0032] As an embodiment, the characteristics of the above method include: the sensing waveform and the communication signal occupying the same multi-carrier symbol occupy different sub-carriers in the frequency domain, realizing an integrated waveform design of ISAC based on orthogonal frequency domain resources, thereby solving the above problems.

[0033] As an embodiment, the characteristics of the above method include: the first sensing waveform and the first communication signal occupy overlapping time domain resources, the overlapping time domain resources include at least one multi-carrier symbol, and on any one of the at least one multi-carrier symbol, the frequency domain resources occupied by the first sensing waveform and the first communication signal are orthogonal.

[0034] As an embodiment, the characteristics of the above method include: the frequency domain resources occupied by the first sensing waveform and the first communication signal overlap in different multi-carrier symbols.

[0035] As an embodiment, the characteristics of the above method include: the frequency domain resources occupied by the first sensing waveform on different multi-carrier symbols are orthogonal.

[0036] As an embodiment, the characteristics of the above method include: the frequency domain resources occupied by the first sensing waveform on different multi-carrier symbols are different.

[0037] As an embodiment, the advantages of the above method include: supporting ISAC technology, the wireless network can 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, and further obtaining integration gain and cooperation gain.

[0038] As an embodiment, the advantages of the above method include: obtaining a flexible trade-off between communication performance and sensing performance.

[0039] As an embodiment, the advantages of the above method include: realizing the fusion between communication and sensing and reducing the interference of communication and sensing fusion.

[0040] As an embodiment, the advantages of the above method include: maintaining the transmission continuity of the sensing signal and improving the sensing performance.

[0041] As an embodiment, the advantages of the above method include: realizing the integrated waveform design of ISAC.

[0042] According to one aspect of the present application, the above method is characterized in that the first sensing waveform occupies the same number of time-frequency units in two frequency-domain multi-carrier symbols corresponding to any two multi-carrier symbols among the plurality of multi-carrier symbols.

[0043] As an embodiment, the problems to be solved by the present application include: the design of the integrated sensing waveform in ISAC.

[0044] As an embodiment, the characteristics of the above method include: in the present application, the integrated sensing waveform of ISAC occupies the same number of sub-carriers on different multi-carrier symbols, thereby solving the above problems.

[0045] As an embodiment, the characteristics of the above method include: the number of time-frequency resources occupied by the first sensing waveform on a given multi-carrier symbol is predefined.

[0046] As an embodiment, the characteristics of the above method include: the number of time-frequency resources occupied by the first sensing waveform on a given multi-carrier symbol depends on the first sensing waveform.

[0047] As an embodiment, the characteristics of the above method include: the number of time-frequency resources occupied by the first sensing waveform on a given multi-carrier symbol is configurable.

[0048] As an embodiment, the advantages of the above method include: simplifying the system design and being easy to implement.

[0049] As an embodiment, the advantages of the above method include: the configurability of the number of time-frequency resources occupied by the first sensing waveform on a given multi-carrier symbol is beneficial to increasing the configuration flexibility.

[0050] As an embodiment, the advantages of the above method include: the predefined number of time-frequency resources occupied by the first sensing waveform on a given multi-carrier symbol can further simplify the system design and reduce the implementation complexity.

[0051] As an embodiment, the advantages of the above method include: there is no need to indicate the frequency-domain resources occupied by the first sensing waveform for each multi-carrier symbol, which can reduce the signaling overhead and implementation cost and improve the spectrum utilization rate.

[0052] As an embodiment, the advantages of the above method include: the dependence of the number of time-frequency resources occupied by the first sensing waveform on a given multi-carrier symbol on the first sensing waveform can improve the accuracy of radar sensing.

[0053] According to one aspect of the present application, the above method is characterized in that, for any one of the multiple multi-carrier symbols, the frequency-domain resources occupied by the first sensing waveform are shifted according to the time-domain position of the any one of the multi-carrier symbols.

[0054] As an embodiment, the problems to be solved by the present application include: the design of the sensing waveform in the integrated waveform design in ISAC.

[0055] As an embodiment, the features of the above method include: in the present application, the frequency-domain resources occupied by the integrated sensing waveform in ISAC are shifted according to the time-domain position of the any one of the multi-carrier symbols, thereby solving the above problems.

[0056] As an embodiment, the features of the above method include: the first sensing waveform includes a chirp waveform.

[0057] As an embodiment, the features of the above method include: the first sensing waveform includes a frequency-modulated continuous wave.

[0058] As an embodiment, the features of the above method include: the shift includes a linear offset.

[0059] As an embodiment, the features of the above method include: the starting position of the frequency-domain resources occupied by the first sensing waveform on a given multi-carrier symbol is linearly related to the time-domain position of the given multi-carrier symbol, and the linear correlation includes a positive correlation or a negative correlation.

[0060] As an embodiment, the advantages of the above method include: the functional accuracy of radar sensing is based on the accuracy of time-delay and Doppler estimation. In the present application, the sensing waveform has good time-delay and Doppler estimation characteristics, thereby ensuring the accuracy of radar sensing.

[0061] As an embodiment, the advantages of the above method include: low device cost and easy to implement.

[0062] According to one aspect of the present application, the above method is characterized in that it includes:

[0063] Sending a first signaling, the first signaling indicating the position of the time-frequency unit occupied by the first sensing waveform in the frequency domain.

[0064] As an embodiment, the problems to be solved by the present application include: how to determine the position of the time-frequency unit occupied by the first sensing waveform in the frequency domain.

[0065] As an embodiment, the features of the above method include: the present application solves the above problems by sending a first signaling to indicate the position of the time-frequency unit occupied by the first sensing waveform in the frequency domain.

[0066] As an embodiment, the characteristics of the above method include: the first signaling is dynamic signaling.

[0067] As an embodiment, the characteristics of the above method include: the first signaling explicitly or implicitly indicates the position of the time-frequency units occupied by the first sensing waveform in the frequency domain.

[0068] As an embodiment, the characteristics of the above method include: the first signaling activates or schedules the first sensing waveform.

[0069] As an embodiment, the advantages of the above method include: being conducive to adapting to a rapidly changing environment and meeting different requirements for communication and sensing in different environments.

[0070] As an embodiment, the advantages of the above method include: better realizing the integration of communication and sensing.

[0071] As an embodiment, the advantages of the above method include: the first signaling is dynamic signaling, and by using dynamic signaling to indicate the position of the time-frequency units occupied by the first sensing waveform in the frequency domain, a sensing waveform occupying different frequency domain resources can be selected based on different requirements for communication and sensing in different scenarios.

[0072] According to one aspect of the present application, the above method is characterized in that the first sensing waveform occupies multiple sets of time-frequency units in the frequency domain, and the multiple sets of time-frequency units are respectively located in multiple frequency-domain multi-carrier symbols corresponding to the multiple multi-carrier symbols; the first signaling indicates at least one of a first parameter and a second parameter; the first parameter is the frequency-domain position of the set of time-frequency units in the first frequency-domain multi-carrier symbol among the multiple sets of time-frequency units located in the multiple frequency-domain multi-carrier symbols, and the second parameter is the number of time-frequency units occupied by any set of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0073] As an embodiment, the problems to be solved by the present application include: how the first signaling indicates the position of the time-frequency units occupied by the first sensing waveform in the frequency domain.

[0074] As an embodiment, the characteristics of the above method include: in the present application, the first signaling indicates the position and / or the number of sub-carriers occupied by the first sensing waveform on the first multi-carrier symbol occupied, thereby solving the above problem.

[0075] As an embodiment, the characteristics of the above method include: in the present application, the first signaling indicates the set of time-frequency units occupied by the first sensing waveform on the first multi-carrier symbol occupied, thereby solving the above problem.

[0076] As an embodiment, the characteristics of the above method include: when the multiple multi-carrier symbols occupied by the first sensing signal are known, the first signaling indicates that the set of time-frequency units occupied by the first sensing waveform on the first occupied multi-carrier symbol can obtain the time-frequency information of the first sensing waveform without ambiguity.

[0077] As an embodiment, the characteristics of the above method include: the frequency-domain resources occupied by the first sensing waveform on a given multi-carrier symbol are continuous.

[0078] As an embodiment, the characteristics of the above method include: any set of time-frequency units in the multiple sets of time-frequency units occupies one multi-carrier symbol in the time domain and multiple consecutive sub-carriers in the frequency domain.

[0079] As an embodiment, the characteristics of the above method include: the first signaling explicitly indicates the first parameter and the second parameter.

[0080] As an embodiment, the characteristics of the above method include: the first signaling implicitly indicates the first parameter and the second parameter.

[0081] As an embodiment, the characteristics of the above method include: the first signaling implicitly indicates the first parameter and explicitly indicates the second parameter.

[0082] As an embodiment, the characteristics of the above method include: the first signaling explicitly indicates the first parameter and implicitly indicates the second parameter.

[0083] As an embodiment, the advantages of the above method include: saving signaling resources and improving spectrum utilization efficiency.

[0084] As an embodiment, the advantages of the above method include: reducing the complexity of system design and being easy to implement by signaling at least one of the first parameter and the second parameter.

[0085] According to one aspect of the present application, the above method is characterized in that the value of the symbol transmitted in any set of time-frequency units included in the multiple sets of time-frequency units depends on the first sensing waveform.

[0086] As an embodiment, the problems to be solved by the present application include: how to determine the value of the symbol transmitted in the multiple sets of time-frequency units.

[0087] As an embodiment, the characteristics of the above method include: in the present application, by making the value of the symbol transmitted on the time-frequency units included in any set of time-frequency units in the multiple sets of time-frequency units depend on the first sensing waveform, the above problems are solved.

[0088] As an embodiment, the characteristics of the above method include: the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform that has undergone FFT.

[0089] As an embodiment, the characteristics of the above method include: one time-frequency unit corresponds to one complex-valued symbol.

[0090] As an embodiment, the advantages of the above method include: making the value of the symbol transmitted in the time-frequency unit depend on the waveform used during actual transmission, which is beneficial to the expansion of waveforms in network design and is compatible with a variety of integrated waveform designs.

[0091] As an embodiment, the advantages of the above method include: achieving the integration between the communication network and the sensing network while making relatively small changes to the current standard, and reducing the cost of modifying the existing network.

[0092] As an embodiment, the advantages of the above method include: improving the transmission efficiency.

[0093] As an embodiment, the advantages of the above method include: realizing the integrated ISAC waveform design based on orthogonal frequency-domain resources.

[0094] According to one aspect of the present application, the above method is characterized in that the first node is a base station.

[0095] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0096] According to one aspect of the present application, the above method is characterized in that the first node is a serving cell.

[0097] According to one aspect of the present application, the above method is characterized in that the first node is the serving cell of the first node.

[0098] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0099] The present application discloses a method in a second node for wireless communication sensing, which includes:

[0100] Receiving a first sensing waveform, where the first sensing waveform occupies multiple multi-carrier symbols and multiple cyclic prefixes in the time domain, the multiple multi-carrier symbols correspond one-to-one with the multiple cyclic prefixes, and each cyclic prefix immediately follows the corresponding multi-carrier symbol;

[0101] Among them, for any one of the multiple multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multiple multi-carrier symbols depends on the starting moment of the any one of the multiple multi-carrier symbols when the multiple multi-carrier symbols are arranged continuously in time.

[0102] According to one aspect of the present application, the above method is characterized in that it includes:

[0103] Receiving a first communication signal, at least one of the multiple multi-carrier symbols is simultaneously occupied by the first sensing waveform and the first communication signal;

[0104] Among them, there is no time-frequency unit simultaneously occupied by the first sensing waveform and the first communication signal; the one time-frequency unit occupies one multi-carrier symbol in the time domain and one sub-carrier in the frequency domain.

[0105] According to one aspect of the present application, the above method is characterized in that the first sensing waveform occupies the same number of time-frequency units in two frequency-domain multi-carrier symbols corresponding to any two of the multiple multi-carrier symbols.

[0106] According to one aspect of the present application, the above method is characterized in that for any one of the multiple multi-carrier symbols, the frequency-domain resources occupied by the first sensing waveform are shifted according to the time-domain position of the any one of the multiple multi-carrier symbols.

[0107] According to one aspect of the present application, the above method is characterized in that it includes:

[0108] Receiving a first signaling, the first signaling indicating the position of the time-frequency units occupied by the first sensing waveform in the frequency domain.

[0109] According to one aspect of the present application, the above method is characterized in that the first sensing waveform occupies multiple sets of time-frequency units in the frequency domain, and the multiple sets of time-frequency units are respectively located in multiple frequency-domain multi-carrier symbols corresponding to the multiple multi-carrier symbols; the first signaling indicates at least one of a first parameter and a second parameter; the first parameter is the frequency-domain position of the set of time-frequency units located in the first frequency-domain multi-carrier symbol among the multiple frequency-domain multi-carrier symbols in the multiple sets of time-frequency units, and the second parameter is the number of time-frequency units occupied by any one of the multiple sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0110] According to one aspect of the present application, the value of the symbol transmitted in the time-frequency units included in any one of the multiple sets of time-frequency units depends on the first sensing waveform.

[0111] According to one aspect of the present application, the above method is characterized in that the second node is a user equipment.

[0112] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0113] The present application discloses a device for a first node used in wireless communication sensing, which includes:

[0114] A first transmitter that sends a first sensing waveform, where the first sensing waveform occupies multiple multi-carrier symbols and multiple cyclic prefixes in the time domain, the multiple multi-carrier symbols correspond to the multiple cyclic prefixes one by one, and each cyclic prefix immediately follows the corresponding multi-carrier symbol;

[0115] Wherein, for any one of the multiple multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the multiple multi-carrier symbols are arranged continuously in time.

[0116] The present application discloses a device for a second node used in wireless communication sensing, which includes:

[0117] A first receiver that receives a first sensing waveform, where the first sensing waveform occupies multiple multi-carrier symbols and multiple cyclic prefixes in the time domain, the multiple multi-carrier symbols correspond to the multiple cyclic prefixes one by one, and each cyclic prefix immediately follows the corresponding multi-carrier symbol;

[0118] Wherein, for any one of the multiple multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the multiple multi-carrier symbols are arranged continuously in time.

[0119] As an embodiment, compared with the traditional solution, the present application has the following advantages which are not limited to:

[0120] The present application supports the ISAC technology. While the wireless network is performing high-quality communication interaction, 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 integrated gain and collaborative gain;

[0121] The integration between the communication network and the sensing network is achieved with relatively small changes to the current standard, reducing the modification cost to the existing network;

[0122] Ensure good autocorrelation and cross-correlation characteristics of the radar waveform, and ensure the accuracy of the sensing function;

[0123] It is beneficial to adapt to a rapidly changing environment and meet different requirements for communication and perception in different environments. Brief Description of the Drawings

[0124] Other features, objects, and advantages of the present application will become more apparent by reading the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0125] Figure 1 Shows a flowchart of the transmission of a first node according to an embodiment of the present application;

[0126] Figure 2 Shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0127] Figure 3 Shows a schematic diagram of an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0128] Figure 4 Shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0129] Figure 5 Shows a first flowchart of the transmission between a first node and a second node according to an embodiment of the present application;

[0130] Figure 6 Shows a second flowchart of the transmission between a first node and a second node according to an embodiment of the present application;

[0131] Figure 7 Shows a schematic diagram of the time-domain waveform of a first sensing waveform according to an embodiment of the present application;

[0132] Figure 8 Shows a schematic diagram of the time-domain resources occupied by a first sensing waveform according to an embodiment of the present application;

[0133] Figure 9 Shows a schematic diagram of the frequency-domain resources occupied by a first sensing waveform in a multi-carrier symbol according to an embodiment of the present application;

[0134] Figure 10 Shows a first schematic diagram of the frequency-domain resources occupied by a first sensing waveform according to an embodiment of the present application;

[0135] Figure 11 Shows a second schematic diagram of the frequency-domain resources occupied by a first sensing waveform according to an embodiment of the present application;

[0136] Figure 12 Shows a schematic diagram of a set of time-frequency units according to an embodiment of the present application;

[0137] Figure 13 A schematic diagram showing a first parameter according to an embodiment of the present application;

[0138] Figure 14 A schematic diagram showing the numerical values of symbols transmitted in a time - frequency unit according to an embodiment of the present application;

[0139] Figure 15 A structural block diagram showing a processing device in a first node according to an embodiment of the present application;

[0140] Figure 16 A structural block diagram showing a processing device in a second node according to an embodiment of the present application. Detailed implementation manners

[0141] The technical solutions of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0142] Example 1

[0143] Embodiment 1 exemplifies a flowchart of transmission by a first node according to an embodiment of the present application, as shown in the accompanying Figure 1 figure. In the accompanying Figure 1 figure, each box represents a step. In particular, the order of the steps in the box does not represent a specific time sequence relationship between the steps.

[0144] The first node transmits a first sensing waveform in step 101. The first sensing waveform occupies multiple multi - carrier symbols and multiple cyclic prefixes in the time domain. The multiple multi - carrier symbols correspond one - to - one with the multiple cyclic prefixes, and each cyclic prefix immediately follows the corresponding multi - carrier symbol.

[0145] In Embodiment 1, for any one of the multiple multi - carrier symbols, the starting phase of the first sensing waveform in the any one of the multi - carrier symbols depends on the starting moment of the any one of the multi - carrier symbols when the multiple multi - carrier symbols are arranged continuously in time.

[0146] As an embodiment, the first node is the first node described in the present application.

[0147] As an embodiment, the first node transmits the first sensing waveform.

[0148] As an embodiment, the first sensing waveform is a time - domain waveform.

[0149] As an embodiment, the first sensing waveform is a continuous waveform.

[0150] As an embodiment, the first sensing waveform is a pulse waveform.

[0151] As an embodiment, the first sensing waveform is an FMCW (Frequency Modulated Continuous Wave) waveform.

[0152] As an embodiment, the first sensing waveform is an LFMCW (Linear Frequency Modulation Continuous Wave) waveform.

[0153] As an embodiment, the first sensing waveform is an SFMCW (Step-FMCW) waveform.

[0154] As an embodiment, the first sensing waveform is a TFMCW (Trapezoidal-FMCW) waveform.

[0155] As an embodiment, the first sensing waveform is a PRO-FMCW ((Pseudo-Random Optimized FMCW) waveform.

[0156] As an embodiment, the first sensing waveform is an FMICW (Frequency Modulated Intermittent Continuous Wave) waveform.

[0157] As an embodiment, the first sensing waveform is a PMCW (Phase Modulated Continuous Wave) waveform.

[0158] As an embodiment, the first sensing waveform is an LFM (Linear Frequency Modulation) waveform.

[0159] As an embodiment, the first sensing waveform is a Chirp waveform.

[0160] As an embodiment, the first sensing waveform is a PDR (Pulse Doppler Radar) waveform.

[0161] As an embodiment, the first sensing waveform is an MFSK (Multiple Frequency Shift Keying) waveform.

[0162] As an embodiment, the first sensing waveform is a fast Chirp ramp sequence waveform.

[0163] As an embodiment, the first sensing waveform is a waveform used by the first node for sensing.

[0164] As an embodiment, the first sensing waveform is a waveform used by the first node for detecting.

[0165] As an embodiment, the first sensing waveform is a waveform used by the first node for tracking.

[0166] As an embodiment, the first sensing waveform is a waveform used by the first node for positioning.

[0167] As an embodiment, the first sensing waveform is a waveform adopted in systems of 5G-Advance and later.

[0168] As an embodiment, the first sensing waveform is a waveform adopted in systems of 6G and later.

[0169] As an embodiment, the first node senses a target node through the first sensing waveform.

[0170] As an embodiment, the first node detects a target node through the first sensing waveform.

[0171] As an embodiment, the first node tracks a target node through the first sensing waveform.

[0172] As an embodiment, the first node positions a target node through the first sensing waveform.

[0173] Typically, the receiver of the first sensing waveform includes the first node described in this application, and the first node receives the echo signal of the first sensing waveform.

[0174] As an embodiment, the first node receives the echo signal of the first sensing waveform through coherent detection.

[0175] As an embodiment, the first node extracts the first sensing waveform from the echo signal of the first sensing waveform.

[0176] As an embodiment, the first node implements the extraction of the first sensing waveform from the echo signal of the first sensing waveform in a correlated manner.

[0177] As an example, the first node receives the first sensing waveform through the FFT (Fast Fourier Transform) of the echo signal of the first sensing waveform.

[0178] As an example, the first node receives the first sensing waveform by removing the first communication signal in this application from the echo signal of the first sensing waveform.

[0179] As an example, the first node senses the target node through the echo signal of the first sensing waveform.

[0180] As an example, the first node detects the target node through the echo signal of the first sensing waveform.

[0181] As an example, the first node tracks the target node through the echo signal of the first sensing waveform.

[0182] As an example, the first node locates the target node through the echo signal of the first sensing waveform.

[0183] As an example, the echo signal of the first sensing waveform in this application is the signal after the first sensing waveform is reflected by the target node.

[0184] As an example, the reflection in this application refers to: passive reflection.

[0185] As an example, the reflection in this application refers to: transparent transmission.

[0186] As an example, the reflection in this application refers to: without processing when reflecting the echo signal.

[0187] Typically, the receiver of the first sensing waveform includes the second node in this application.

[0188] As an example, the second node in this application receives the first sensing waveform after being reflected by the target node.

[0189] As an example, the second node in this application receives the first sensing waveform, and in response to receiving the first sensing waveform, sends a feedback signal of the first sensing waveform to the first node.

[0190] As an example, the second node in this application receives and processes the first sensing waveform, and sends a feedback signal of the first sensing waveform to the first node.

[0191] As an example, the processing in this application includes: non-transparent transmission.

[0192] As an embodiment, the processing described in this application includes: radar detection.

[0193] As an embodiment, the processing described in this application includes: pulse compression.

[0194] As an embodiment, the processing described in this application includes: active reflection.

[0195] As an embodiment, the processing described in this application includes: matched filtering.

[0196] As an embodiment, the processing described in this application includes: modulation.

[0197] As an embodiment, the processing described in this application includes: decoding.

[0198] As an embodiment, the first node senses the target node through the feedback signal of the first sensing waveform.

[0199] As an embodiment, the first node detects the target node through the feedback signal of the first sensing waveform.

[0200] As an embodiment, the first node tracks the target node through the feedback signal of the first sensing waveform.

[0201] As an embodiment, the first node locates the target node through the feedback signal of the first sensing waveform.

[0202] As an embodiment, the feedback signal of the first sensing waveform in this application is the signal sent by the second node in this application for the sensing result of the first sensing waveform.

[0203] As a sub - embodiment of this embodiment, the meaning of the signal sent for the sensing result of the first sensing waveform includes: indicating the sensing result of the first sensing waveform.

[0204] As a sub - embodiment of this embodiment, the meaning of the signal sent for the sensing result of the first sensing waveform includes: including the sensing result of the first sensing waveform.

[0205] As a sub - embodiment of this embodiment, the meaning of the signal sent for the sensing result of the first sensing waveform includes: indicating the reception of the first sensing waveform.

[0206] As a sub - embodiment of this embodiment, the meaning of the signal sent for the sensing result of the first sensing waveform includes: communication parameter configuration and selection performed based on the sensing result of the first sensing waveform.

[0207] As an embodiment, the perception result described in the present application includes the position parameters of the target node, such as at least one of position, speed, distance, and direction.

[0208] As an embodiment, the perception result described in the present application includes the communication parameters of the target node, such as at least one of the reference signal resources, quasi-co-location parameters, large-scale parameters, beams, spatial parameters, or spatial domain filters that are quasi-co-located with the direction of the target node.

[0209] As an embodiment, the perception result described in the present application includes the measurement results of the sensing signal, such as at least one of signal quality, RSRP (Reference Signal Received Power), or SINR (Signal-to-Noise and Interference Ratio).

[0210] As an embodiment, at least one of the first sensing waveform, the echo signal of the first sensing waveform described in the present application, and the feedback signal of the first sensing waveform described in the present application is used to sense at least one of the moving speed, distance, direction, or position of the target node.

[0211] As an embodiment, at least one of the first sensing waveform, the echo signal of the first sensing waveform described in the present application, and the feedback signal of the first sensing waveform described in the present application is used to sense at least one of the reference signal resources, quasi-co-location parameters, large-scale parameters, beams, spatial parameters, or spatial domain filters that are quasi-co-located with the direction of the target node.

[0212] As an embodiment, the first sensing waveform and the echo signal of the first sensing waveform described in the present application are jointly used to sense at least one of the moving speed, distance, direction, or position of the target node.

[0213] As an embodiment, the first sensing waveform and the echo signal of the first sensing waveform described in the present application are jointly used to sense at least one of the reference signal resources, quasi-co-location parameters, large-scale parameters, beams, spatial parameters, or spatial domain filters that are quasi-co-located with the direction of the target node.

[0214] As an example, the quasi co-location parameters described in this application include at least one of Doppler shift, Doppler spread, average delay, delay spread, Spatial Tx parameter, or Spatial Rx parameter.

[0215] As an example, the large scale parameters described in this application include at least one of average gain, Doppler spread, Doppler shift, average delay, delay spread, or Spatial Rx parameter.

[0216] As an example, the target node described in this application is the second node described in this application.

[0217] As an example, the target node described in this application is a communication node different from the first node and the second node described in this application.

[0218] As an example, the target node described in this application is not a communication node.

[0219] As an example, the first node and the second node described in this application are a communication node.

[0220] As an example, a communication node described in this application refers to a node that establishes an RRC (Radio Resource Control) connection with the first node.

[0221] As an example, a communication node described in this application refers to a node that establishes an RRC connection with the second node described in this application.

[0222] As an example, a communication node described in this application refers to a node that can or is capable of establishing an RRC connection with the first node.

[0223] As an example, a communication node described in this application refers to a node that can or is capable of establishing an RRC connection with the second node described in this application.

[0224] As an example, the first sensing waveform occupies the plurality of multi-carrier symbols and the plurality of cyclic prefixes (CP) in the time domain.

[0225] As an embodiment, the first sensing waveform appears periodically in the time domain.

[0226] As an embodiment, the first sensing waveform is semi-persistent in the time domain.

[0227] As an embodiment, the first sensing waveform is aperiodic in the time domain.

[0228] As an embodiment, the first sensing waveform is a periodic single waveform transmission.

[0229] As an embodiment, the first sensing waveform is a semi-persistent single waveform transmission.

[0230] As an embodiment, the first sensing waveform appears in periodic time units in the time domain, and each appearance belongs to a time unit in time and occupies at least one multi-carrier symbol and at least one cyclic prefix in the one time unit.

[0231] As an embodiment, the first sensing waveform appears in semi-persistent time units in the time domain, and each appearance belongs to a time unit in time and occupies at least one multi-carrier symbol and at least one cyclic prefix in the one time unit.

[0232] As an embodiment, the time unit in this application is a slot.

[0233] As an embodiment, the time unit in this application is a subframe.

[0234] As an embodiment, the time unit in this application is a pattern.

[0235] As an embodiment, the time unit in this application is a multi-carrier symbol.

[0236] As an embodiment, the time unit in this application includes one or more slots.

[0237] As an embodiment, the time unit in this application includes one or more subframes.

[0238] As an embodiment, the time unit in this application includes one or more multi-carrier symbols.

[0239] Typically, one slot includes 14 consecutive multi-carrier symbols.

[0240] Typically, one slot includes 12 consecutive multi-carrier symbols.

[0241] As an embodiment, the multiple multi - carrier symbols are K1 multi - carrier symbols, where K1 is a positive integer greater than 1.

[0242] As an embodiment, the multiple cyclic prefixes are K1 cyclic prefixes, where K1 is a positive integer greater than 1.

[0243] As an embodiment, the first sensing waveform occupies the same number of multi - carrier symbols and cyclic prefixes in the time domain.

[0244] As an embodiment, the first sensing waveform occupies K1 multi - carrier symbols and K1 cyclic prefixes in the time domain, where K1 is a positive integer greater than 1.

[0245] As an embodiment, the first sensing waveform includes K1 multi - carrier symbols and K1 cyclic prefixes in the time domain, where K1 is a positive integer greater than 1.

[0246] As a sub - embodiment of the above two embodiments, the K1 multi - carrier symbols and the K1 cyclic prefixes correspond one by one.

[0247] As a sub - embodiment of the above two embodiments, the K1 cyclic prefixes are respectively followed closely by the K1 multi - carrier symbols.

[0248] As an embodiment, any one of the multiple multi - carrier symbols is a multi - carrier symbol in the time domain.

[0249] As an embodiment, any one of the multiple multi - carrier symbols occupies the same duration in the time domain.

[0250] As an embodiment, the multiple multi - carrier symbols and the multiple cyclic prefixes correspond one by one, and each cyclic prefix immediately precedes the corresponding multi - carrier symbol.

[0251] As an embodiment, any one of the multiple multi - carrier symbols immediately follows one of the corresponding cyclic prefixes in the multiple cyclic prefixes.

[0252] As an embodiment, the multiple multi - carrier symbols are sorted in sequence in the time domain.

[0253] As an embodiment, the multiple cyclic prefixes are sorted in sequence in the time domain.

[0254] As an embodiment, the multiple multi - carrier symbols and the multiple cyclic prefixes correspond one by one and are sorted in sequence in the time domain.

[0255] As an embodiment, the multi-carrier symbols described in the present application include OFDM (Orthogonal Frequency Division Multiplexing) symbols.

[0256] As an embodiment, the multi-carrier symbols described in the present application are OFDM symbols.

[0257] As an embodiment, the multi-carrier symbols described in the present application include FBMC (Filter Bank MultiCarrier) symbols.

[0258] As an embodiment, the multi-carrier symbols described in the present application include UFMC (Universal Filtered Multi Carrier) symbols.

[0259] As an embodiment, the multi-carrier symbols described in the present application include F-OFDM (Filtered-OFDM) symbols.

[0260] As an embodiment, the multi-carrier symbols described in the present application include OCDM-OFDM (Orthogonal Chirp Division Multiplexing-OFDM) symbols.

[0261] As an embodiment, the multi-carrier symbols described in the present application include CP-OFDM (Cyclic Prefix-OFDM) symbols.

[0262] As an embodiment, the multi-carrier symbols described in the present application are downlink (DL) symbols.

[0263] As an embodiment, the multi-carrier symbols described in the present application are flexible (F) symbols.

[0264] As an embodiment, any one of the multiple multi-carrier symbols is one of a DL symbol and a flexible symbol.

[0265] As an embodiment, the cyclic prefix described in the present application includes a normal cyclic prefix.

[0266] As an embodiment, the cyclic prefix described in the present application includes an extended cyclic prefix.

[0267] As an embodiment, the cyclic prefix described in the present application includes at least the former of a normal CP and an extended CP.

[0268] As an embodiment, the cyclic prefix described in the present application is used for the guard interval.

[0269] As an embodiment, for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

[0270] As an embodiment, for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the time domain position of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

[0271] As an embodiment, for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the index of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

[0272] As a sub-embodiment of this embodiment, the index of the multi-carrier symbol is the position of the one multi-carrier symbol in a radio frame.

[0273] As a sub-embodiment of this embodiment, the index of the multi-carrier symbol is the position of the one multi-carrier symbol in a sub-frame.

[0274] As a sub-embodiment of this embodiment, the index of the multi-carrier symbol is the position of the one multi-carrier symbol in a time slot.

[0275] As an embodiment, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols is related to the position of the any one of the multi-carrier symbols in the plurality of multi-carrier symbols.

[0276] Typically, the plurality of multi-carrier symbols belong to one time unit described in the present application, and the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols in the one time unit described in the present application.

[0277] Typically, the plurality of multi-carrier symbols belong to one time unit described in the present application, and the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the time domain position of the any one of the multi-carrier symbols in the one time unit described in the present application.

[0278] Typically, the multiple multi-carrier symbols belong to one time unit described in this application, and the starting phase of the first sensing waveform in any of the multi-carrier symbols depends on the index of any of the multi-carrier symbols in one time unit described in this application.

[0279] Example 2

[0280] Embodiment 2 exemplifies a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the accompanying Figure 2 figure.

[0281] The accompanying Figure 2 figure 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 systems. The network architectures of LTE, LTE-A, 5G system, 5G-Advanced, and future 6G systems are referred to as EPS (Evolved Packet System). The 5GNR or LTE network architecture may be referred to as 5GS (5G System) / EPS or some other appropriate term; the 6G network architecture may be referred to as 6GS (6G System) / EPS or some other appropriate term. The network architecture 200 may include one or more UEs 201, RAN (NextGeneration 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 accompanying 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 providing circuit switching services. The RAN 202 includes Node B 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 can be connected to other nodes 204 via 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), Transmitter Receiver Point (TRP), or some other suitable term. Node 203 provides an access point for UE 201 to the core network 210; 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 UE 201 include cellular phones, smart phones, 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 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 Date 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 itself is 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, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0282] As an embodiment, the first node in the present application includes the node 203.

[0283] As an embodiment, the first node in the present application includes the node 204.

[0284] As an embodiment, the second node in the present application includes the UE 201.

[0285] As an embodiment, the node 203 is a macro cell base station.

[0286] As an embodiment, the node 203 is a micro cell base station.

[0287] As an embodiment, the node 203 is a pico cell base station.

[0288] As an embodiment, the node 203 is a femtocell.

[0289] As an embodiment, the node 203 is a base station device supporting large time delay differences.

[0290] As an embodiment, the node 203 is an aerial platform device.

[0291] As an embodiment, the node 203 is a satellite device.

[0292] As an embodiment, the node 203 is a test device (such as a transceiver simulating some functions of a base station, a signaling tester).

[0293] As an embodiment, the node 204 is a macro cell base station.

[0294] As an embodiment, the node 204 is a micro cell base station.

[0295] As an embodiment, the node 204 is a pico cell base station.

[0296] As an embodiment, the node 204 is a home base station.

[0297] As an embodiment, the node 204 is a base station device supporting large time delay differences.

[0298] As an embodiment, the node 204 is an aerial platform device.

[0299] As an embodiment, the node 204 is a satellite device.

[0300] As an embodiment, the node 204 is a test device (such as a transceiver simulating some functions of a base station, a signaling tester).

[0301] As an embodiment, the node 204 is a relay node device.

[0302] As an embodiment, the node 203 and the node 204 are the same node.

[0303] As an embodiment, the node 203 and the node 204 are two different nodes.

[0304] As an embodiment, the UE 201 includes a mobile phone.

[0305] As an embodiment, the UE 201 includes a vehicle such as a car.

[0306] As an embodiment, the radio link from the UE 201 to the node 203 is an uplink, and the uplink is used to perform uplink transmission.

[0307] 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.

[0308] As an example, the radio link between the node 203 and the UE 201 includes a cellular network link.

[0309] As an example, the node 203 and the UE 201 are connected through the Uu air interface.

[0310] As an example, the sender of the first sensing waveform includes the node 203.

[0311] As an example, the receiver of the first sensing waveform includes the node 203.

[0312] As an example, the receiver of the first sensing waveform includes the node 204.

[0313] As an example, the receiver of the first sensing waveform includes the UE 201.

[0314] As an example, the sender of the first communication signal in this application includes the node 203.

[0315] As an example, the receiver of the first communication signal in this application includes the UE 201.

[0316] As an example, the sender of the first signaling in this application includes the node 203.

[0317] As an example, the receiver of the first signaling in this application includes the UE 201.

[0318] As an example, the node 203 supports ISAC.

[0319] As an example, the UE 201 supports ISAC.

[0320] As an example, the node 203 at least supports the TRP monostatic sensing model.

[0321] As an example, the UE 201 at least supports the UE monostatic sensing model.

[0322] As an example, the node 203 at least supports the TRP-UE bistatic sensing model.

[0323] As an example, the UE 201 supports at least the TRP-UE bistatic sensing model.

[0324] As an example, the node 203 supports at least the UE-TRP bistatic sensing model.

[0325] As an example, the UE 201 supports at least the UE-TRP bistatic sensing model.

[0326] As an example, the node 203 supports at least the TRP-TRP bistatic sensing model.

[0327] As an example, the UE 201 supports at least the UE-UE bistatic sensing model.

[0328] As an example, the UE 201 supports the 5G system.

[0329] As an example, the UE 201 supports the 5G-A system.

[0330] As an example, the UE 201 supports the 6G system.

[0331] As an example, the node 203 supports the 6G system.

[0332] As an example, the UE 201 supports at least the 6G system.

[0333] As an example, the node 203 supports at least the 6G system.

[0334] Example 3

[0335] Example 3 illustrates 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 follows.

[0336] 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 3The wireless protocol architecture of the control plane 300 for a first communication node device (UE or RSU (Road Side Unit), in-vehicle device or in-vehicle communication module in V2X (Vehicle to Everything)) and a second node device (gNB, UE or RSU in V2X, in-vehicle device or in-vehicle communication module), or between two UEs, is shown 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). The radio protocol architecture for the first communication node device and the second communication node device in the user plane 350 is substantially the same as the corresponding layers and sub-layers in the control plane 300 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.).

[0337] As an example, the Figure 3 radio protocol architecture in

[0338] As an example, the Figure 3 radio protocol architecture in

[0339] As an example, the first sensing waveform is generated in the PHY 301 or PHY 351.

[0340] As an example, the first communication signal in this application is generated in the RRC 306.

[0341] As an example, the first communication signal in this application is generated in the MAC 302 or MAC 352.

[0342] As an example, the first communication signal in this application is generated in the PHY 301 or PHY 351.

[0343] As an example, the first signaling in this application is generated in the MAC 302 or MAC 352.

[0344] As an example, the first signaling in this application is generated in the PHY 301 or PHY 351.

[0345] As an example, the higher layer in the present application refers to the layer above the physical layer.

[0346] As an example, the higher layer in the present application includes the MAC layer.

[0347] As an example, the higher layer in the present application includes the RRC layer.

[0348] Example 4

[0349] Embodiment 4 exemplifies 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 appendix. Figure 4 shown in the appendix. 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.

[0350] 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.

[0351] 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.

[0352] 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 spatial 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 a time-domain multi-carrier symbol stream. Subsequently, the multi-antenna transmit processor 471 performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream and then provides it to different antennas 420.

[0353] 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 respective 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 for providing to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 perform various signal processing functions of L1. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive 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 receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any parallel streams destined for the second communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive 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 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.

[0354] In the transmission from the second communication device 450 to the first communication device 410, at the second communication device 450, a data source 467 is used to provide an upper layer data packet to a controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmit 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. A transmit processor 468 performs modulation mapping and channel coding processing, and a 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 analog precoding / beamforming operations in the multi-antenna transmit processor 457, provides them to different antennas 452 via a 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.

[0355] 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 receive 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 a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement the functions of L1. A controller / processor 475 implements 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 the upper layer data packet from the second communication device 450. The upper layer data packet 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.

[0356] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 at least transmits a first sensing waveform, the first sensing waveform occupying a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, the plurality of multi-carrier symbols corresponding one-to-one with the plurality of cyclic prefixes, each cyclic prefix following immediately before the corresponding multi-carrier symbol; for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols assuming that the plurality of multi-carrier symbols are arranged continuously in time.

[0357] As an embodiment, 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: transmitting a first sensing waveform.

[0358] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 450 at least receives a first sensing waveform, the first sensing waveform occupying a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, the plurality of multi-carrier symbols corresponding one-to-one with the plurality of cyclic prefixes, each cyclic prefix following immediately before the corresponding multi-carrier symbol; for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols assuming that the plurality of multi-carrier symbols are arranged continuously in time.

[0359] As an embodiment, 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 a first sensing waveform.

[0360] As an embodiment, the first node in this application includes the first communication device 410.

[0361] As an embodiment, the second node in this application includes the second communication device 450.

[0362] As an example, at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, the memory 476} is used to transmit a first sensing waveform; at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, the data source 467} is used to receive the first sensing waveform.

[0363] As an example, at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, the memory 476} is used to transmit the first communication signal described in the present application; at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, the data source 467} is used to receive the first communication signal described in the present application.

[0364] As an example, at least one of {the antenna 420, the transmitter 418, the transmitting processor 416, the multi-antenna transmitting processor 471, the controller / processor 475, the memory 476} is used to transmit the first signaling described in the present application; at least one of {the antenna 452, the receiver 454, the receiving processor 456, the multi-antenna receiving processor 458, the controller / processor 459, the memory 460, the data source 467} is used to receive the first signaling described in the present application.

[0365] Example 5

[0366] Example 5 exemplifies the first flowchart for 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 N1 communicates with the second node U2 via a wireless link, and the steps in block F51 are optional. It should be specifically noted that the sequence in this embodiment does not limit the signal transmission sequence and implementation sequence in the present application.

[0367] For the first node N1, the first signaling is transmitted in step S5110; the first sensing waveform is transmitted in step S510.

[0368] For the second node U2, the first signaling is received in step S5210; the first sensing waveform is received in step S520.

[0369] In Embodiment 5, the first signaling indicates the position of the time-frequency units occupied by the first sensing waveform in the frequency domain; the first sensing waveform occupies a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, and the plurality of multi-carrier symbols correspond one-to-one to the plurality of cyclic prefixes, and each cyclic prefix immediately precedes the corresponding multi-carrier symbol; for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

[0370] As an embodiment, the first node N1 is the first node in the present application.

[0371] As an embodiment, the second node U2 is the second node in the present application.

[0372] As an embodiment, the air interface between the first node N1 and the second node U2 includes a radio interface between a base station device and a user equipment.

[0373] As an embodiment, the air interface between the first node N1 and the second node U2 includes a radio interface between a relay node device and a user equipment.

[0374] As an embodiment, the air interface between the first node N1 and the second node U2 includes a radio interface between user equipments.

[0375] As an embodiment, the first node N1 and the second node U2 communicate through a PC5 interface.

[0376] As an embodiment, the first node N1 is the serving cell maintaining base station of the second node U2.

[0377] As an embodiment, the first sensing waveform is transmitted on a physical layer channel for transmitting user data.

[0378] As an embodiment, the first sensing waveform is transmitted in a physical layer channel dedicated for sensing.

[0379] As an embodiment, the first sensing waveform is transmitted on a physical layer channel for transmitting user data and sensing signals.

[0380] As an embodiment, the physical layer channel occupied by the first sensing waveform includes a PDSCH (Physical Downlink Shared Channel).

[0381] As an embodiment, the physical layer channel occupied by the first sensing waveform includes PSSCH (Physical Sidelink Shared CHannel).

[0382] As an embodiment, in step S510, the first node N1 transmits the first sensing waveform in an omnidirectional manner; the above method can expand the sensing range.

[0383] As an embodiment, in step S510, the first node N1 transmits the first sensing waveform in a beamforming manner; the above method can obtain accurate sensing information.

[0384] As an embodiment, in step S520, the second node U2 receiving the first sensing waveform includes: reflecting the first sensing waveform.

[0385] As an embodiment, in step S520, the second node U2 receiving the first sensing waveform includes: receiving and reflecting the first sensing waveform.

[0386] As an embodiment, in step S520, the second node U2 receiving the first sensing waveform includes: receiving the first sensing waveform reflected by the target node.

[0387] As a sub - embodiment of this embodiment, the target node is the target node described in Embodiment 1 of this application.

[0388] As a sub - embodiment of this embodiment, the target node is different from the first node N1 and the second node U2.

[0389] As an embodiment, in step S520, the second node U2 receiving the first sensing waveform includes: processing the first sensing waveform.

[0390] As an embodiment, in step S520, the second node U2 receiving the first sensing waveform includes: receiving and processing the first sensing waveform.

[0391] As an embodiment, in step S520, the second node U2 receiving the first sensing waveform includes: receiving and processing the first sensing waveform, and sending a feedback signal of the first sensing waveform to the first node N1.

[0392] As an embodiment, in step S520, the second node U2 receiving the first sensing waveform includes: receiving the first sensing waveform, and as a response to receiving the first sensing waveform, sending a feedback signal of the first sensing waveform to the first node N1.

[0393] As an example, the steps in block F51 in Figure 5 exist; the method applied to the first node N1 described in this application includes: sending a first signaling, and the first signaling indicates the position of the time-frequency unit occupied by the first sensing waveform in the frequency domain.

[0394] As a sub-example of this example, the first signaling includes higher layer signaling.

[0395] As a sub-example of this example, the first signaling includes RRC signaling.

[0396] As a sub-example of this example, the first signaling is dynamic signaling.

[0397] As a sub-example of this example, the first signaling includes MAC (Medium Access Control) signaling.

[0398] As a sub-example of this example, the first signaling includes MAC CE (Control Element).

[0399] As a sub-example of this example, the first signaling includes a subheader.

[0400] As a sub-example of this example, the first signaling includes physical layer signaling.

[0401] As a sub-example of this example, the first signaling is physical layer control signaling.

[0402] As a sub-example of this example, the first signaling is downlink scheduling signaling.

[0403] As a sub-example of this example, the first signaling includes DCI (Downlink Control Information).

[0404] As a sub-example of this example, the first signaling is DCI, and the format of the first signaling is the DCI format.

[0405] As a sub-example of this example, the first signaling is DCI, and the format of the first signaling is the format for scheduling downlink signals.

[0406] As a sub-example of this example, the first signaling is DCI, and the format of the first signaling is the format for activating sensing signals.

[0407] As a sub - embodiment of this embodiment, the first signaling is DCI, and the format of the first signaling is the format enabled by the ISAC waveform.

[0408] As a sub - embodiment of this embodiment, the first signaling explicitly indicates the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0409] As a sub - embodiment of this embodiment, the first signaling implicitly indicates the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0410] As a sub - embodiment of this embodiment, the first signaling directly indicates the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0411] As a sub - embodiment of this embodiment, the first signaling indirectly indicates the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0412] As a sub - embodiment of this embodiment, the format of the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0413] As a sub - embodiment of this embodiment, the time - domain resources occupied by the first signaling indicate the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0414] As a sub - embodiment of this embodiment, the frequency - domain resources occupied by the first signaling indicate the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0415] As a sub - embodiment of this embodiment, the time - frequency resources occupied by the first signaling indicate the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0416] As a sub - embodiment of this embodiment, the first signaling indicates the first sensing waveform, or, the first signaling indicates a switch to the first sensing waveform.

[0417] As a subsidiary embodiment of this sub - embodiment, the position of the time - frequency units occupied by the first sensing waveform in the frequency domain is predefined, and the predefined position is determined by the first sensing waveform.

[0418] As a subsidiary embodiment of this sub - embodiment, the position of the time - frequency units occupied by the first sensing waveform in the frequency domain is obtained by looking up a table, and the position obtained by looking up the table is determined by the first sensing waveform.

[0419] As a sub - embodiment of this embodiment, the first signaling indicates the type of the first sensing waveform, and the type of the first sensing waveform is used to determine the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0420] As a sub - embodiment of this embodiment, the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform within a carrier.

[0421] As a sub - embodiment of this embodiment, the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform within a BWP (BandWidth Part).

[0422] As a sub - embodiment of this embodiment, the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform within a resource block.

[0423] As a sub - embodiment of this embodiment, the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform in the frequency domain within a period.

[0424] As a sub - embodiment of this embodiment, the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform in the frequency domain within a time unit as described in this application.

[0425] As a sub - embodiment of this embodiment, the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform on the frequency - domain multi - carrier symbols corresponding to the first multi - carrier symbol occupied by the first sensing waveform in the time domain.

[0426] As a sub - embodiment of this embodiment, the first signaling activates the transmission of the first sensing waveform.

[0427] As a sub - embodiment of this embodiment, the first signaling indicates the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0428] As an affiliated embodiment of this sub - embodiment, the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain are used to determine the position of the time - frequency units occupied by the first sensing waveform in the frequency domain.

[0429] As an affiliated embodiment of this sub - embodiment, the first signaling indicates the position of the time - frequency units occupied by the first sensing waveform.

[0430] As a sub - embodiment of this embodiment, the first signaling explicitly indicates the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0431] As a sub - embodiment of this embodiment, the first signaling implicitly indicates the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0432] As a sub - embodiment of this embodiment, the first signaling directly indicates the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0433] As a sub - embodiment of this embodiment, the first signaling indirectly indicates the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0434] As a sub - embodiment of this embodiment, the time - domain resources occupied by the first signaling indicate the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0435] As a sub - embodiment of this embodiment, the frequency - domain resources occupied by the first signaling indicate the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0436] As a sub - embodiment of this embodiment, the time - frequency resources occupied by the first signaling indicate the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain.

[0437] As a sub - embodiment of this embodiment, the time - domain resources occupied by the first signaling indicate the first multi - carrier symbol occupied by the first sensing waveform in the time domain.

[0438] As a sub - embodiment of this embodiment, the frequency - domain resources occupied by the first signaling indicate the first multi - carrier symbol occupied by the first sensing waveform in the time domain.

[0439] As a sub - embodiment of this embodiment, the time - frequency resources occupied by the first signaling indicate the first multi - carrier symbol occupied by the first sensing waveform in the time domain.

[0440] As a sub - embodiment of this embodiment, the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain are RRC - configured.

[0441] As a sub - embodiment of this embodiment, the multiple multi - carrier symbols occupied by the first sensing waveform in the time domain are periodic and RRC - configured.

[0442] As a sub - embodiment of this embodiment, the first multi - carrier symbol occupied by the first sensing waveform in the time domain is the first multi - carrier symbol of the first communication signal in the time domain described in this application.

[0443] As a sub - embodiment of this embodiment, the first sensed waveform occupies, in the time domain, the first multi - carrier symbol that is the multi - carrier symbol obtained by offsetting the first multi - carrier symbol of the first communication signal in this application by X1 multi - carrier symbols in the time domain.

[0444] As an accessory embodiment of this sub - embodiment, X1 is an integer.

[0445] As an accessory embodiment of this sub - embodiment, X1 is equal to 0.

[0446] As an accessory embodiment of this sub - embodiment, X1 is a non - negative integer.

[0447] As an accessory embodiment of this sub - embodiment, X1 is configured by RRC.

[0448] As a sub - embodiment of this embodiment, the first signaling is transmitted on the downlink physical control channel (i.e., the downlink channel that can only be used to carry physical - layer signaling).

[0449] As a sub - embodiment of this embodiment, the physical - layer channels occupied by the first signaling include PDCCH (Physical Downlink Control CHannel).

[0450] As a sub - embodiment of this embodiment, the physical - layer channels occupied by the first signaling include PSCCH (Physical Sidelink Control CHannel).

[0451] As a sub - embodiment of this embodiment, the first signaling is transmitted on the downlink physical data channel (i.e., the downlink channel that can be used to carry physical - layer data).

[0452] As a sub - embodiment of this embodiment, the physical - layer channels occupied by the first signaling include PDSCH.

[0453] As a sub - embodiment of this embodiment, the transport channels occupied by the first signaling include DL - SCH (DownLink - Shared CHannel).

[0454] As a sub - embodiment of this embodiment, attached Figure 5 The steps in box F51 are before the step S510.

[0455] As a sub - embodiment of this embodiment, attached Figure 5 The steps in box F51 are before the step S520.

[0456] As an embodiment, in the appendix Figure 5 the steps in block F51 do not exist.

[0457] As a sub - embodiment of this embodiment, the first sensing waveform is transparent to the second node.

[0458] As a sub - embodiment of this embodiment, the positions of the time - frequency units occupied by the first sensing waveform in the frequency domain are predefined.

[0459] As a sub - embodiment of this embodiment, the positions of the time - frequency units occupied by the first sensing waveform in the frequency domain are pre - configured.

[0460] Example 6

[0461] Embodiment 6 exemplifies a second flowchart for transmission between a first node and a second node according to an embodiment of the present application. In the appendix Figure 6 the first node N3 communicates with the second node U4 via 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.

[0462] For the first node N3, a first communication signal is sent in step S630.

[0463] For the second node U4, the first communication signal is received in step S640.

[0464] In Embodiment 6, at least one of the multiple multi - carrier symbols is occupied simultaneously by the first sensing waveform and the first communication signal; there is no time - frequency unit occupied simultaneously by the first sensing waveform and the first communication signal; the one time - frequency unit occupies one multi - carrier symbol in the time domain and one sub - carrier in the frequency domain.

[0465] As an embodiment, the first node N3 is the first node in the present application.

[0466] As an embodiment, the second node U4 is the second node in the present application.

[0467] As an embodiment, the air interface between the first node N3 and the second node U4 includes a wireless interface between a base station device and a user equipment.

[0468] As an embodiment, the air interface between the first node N3 and the second node U4 includes a wireless interface between a relay node device and a user equipment.

[0469] As an embodiment, the air interface between the first node N3 and the second node U4 includes a wireless interface between user equipments.

[0470] As an embodiment, the first node N3 and the second node U4 communicate through the PC5 interface.

[0471] As an embodiment, the first node N3 is the serving cell maintaining base station of the second node U4.

[0472] As an embodiment, the first communication signal includes a wireless signal.

[0473] As an embodiment, the first communication signal includes a baseband signal.

[0474] As an embodiment, the first communication signal includes a radio frequency signal.

[0475] As an embodiment, the first communication signal includes a reference signal.

[0476] As an embodiment, in step S630, the first node N3 sends the first communication signal in an omnidirectional transmission manner.

[0477] As an embodiment, in step S630, the first node N3 sends the first communication signal in a beamforming manner.

[0478] As an embodiment, the second node U4 receiving the first communication signal in step S640 includes: the second node U4 receives the first communication signal from the first sensing waveform and the first communication signal.

[0479] As an embodiment, the second node U4 receiving the first communication signal in step S640 includes: the second node U4 removes the first sensing waveform from the first sensing waveform and the first communication signal.

[0480] As a sub - embodiment of this embodiment, the second node U4 determines at least the former of the frequency - domain resource position or the time - domain resource position occupied by the first sensing waveform by receiving the first signaling in this application, and removes the first sensing waveform from the first sensing waveform and the first communication signal.

[0481] As an embodiment, the second node U4 receiving the first communication signal in step S640 includes: the second node U4 uses the first sensing waveform as a reference signal of the first communication signal.

[0482] As an embodiment, the second node U4 receiving the first communication signal in step S640 includes: the second node U4 is configured to receive the first communication signal from the first sensing waveform and the first communication signal correspondingly.

[0483] As an embodiment, the meaning that at least one multi-carrier symbol is occupied by the first sensing waveform and the first communication signal simultaneously includes: the at least one multi-carrier symbol carries the first sensing waveform and the first communication signal simultaneously.

[0484] As an embodiment, the meaning that at least one multi-carrier symbol is occupied by the first sensing waveform and the first communication signal simultaneously includes: the at least one multi-carrier symbol is used for transmitting the first sensing waveform and the first communication signal simultaneously.

[0485] As an embodiment, the meaning that at least one multi-carrier symbol is occupied by the first sensing waveform and the first communication signal simultaneously includes: the first sensing waveform and the first communication signal occupy overlapping time-domain resources, and the overlapping time-domain resources include the at least one multi-carrier symbol.

[0486] As an embodiment, the first communication signal occupies continuous time-domain resources.

[0487] As an embodiment, the first sensing waveform occupies multiple multi-carrier symbols in the time domain, and the first communication signal occupies at least one multi-carrier symbol among the multiple multi-carrier symbols.

[0488] As an embodiment, the first sensing waveform occupies multiple multi-carrier symbols in the time domain, and at least one multi-carrier symbol among the multiple multi-carrier symbols is occupied by the first sensing waveform and the first communication signal simultaneously.

[0489] As an embodiment, the time-domain resources occupied by the first sensing waveform include the time-domain resources occupied by the first communication signal.

[0490] As an embodiment, the first sensing waveform occupies multiple multi-carrier symbols in the time domain, and at least one multi-carrier symbol among the multiple multi-carrier symbols is only occupied by the first sensing waveform.

[0491] As an embodiment, the time-domain resources occupied by the first sensing waveform and the time-domain resources occupied by the first communication signal overlap.

[0492] As an example, there is at least one multi-carrier symbol occupied only by the first sensing waveform among the multi-carrier symbols occupied by the first sensing waveform, there is at least one multi-carrier symbol occupied only by the first communication signal among the multi-carrier symbols occupied by the first communication signal, and there is at least one multi-carrier symbol occupied by both the first sensing waveform and the first communication signal.

[0493] As an example, the first sensing waveform and the first communication signal occupy the same time-domain resource.

[0494] As an example, the first sensing waveform and the first communication signal occupy the same multi-carrier symbol in the time domain.

[0495] As an example, the time-domain resource occupied by the first communication signal includes the time-domain resource occupied by the first sensing waveform.

[0496] As an example, the first sensing waveform occupies multiple multi-carrier symbols in the time domain, each of the multi-carrier symbols is occupied by both the first sensing waveform and the first communication signal, and at least one multi-carrier symbol occupied by the first communication signal does not belong to the multiple multi-carrier symbols.

[0497] As an example, the time-frequency unit occupies one multi-carrier symbol in the time domain and one sub-carrier in the frequency domain.

[0498] As an example, the time-frequency unit is: Resource Unit, RU.

[0499] As an example, the time-frequency unit is: Resource Element, RE.

[0500] As an example, one time-frequency unit in this application is used to transmit one symbol.

[0501] As an example, one time-frequency unit in this application is used to transmit one modulation symbol.

[0502] As an example, one time-frequency unit in this application is used to transmit one complex-valued symbol.

[0503] As an example, one time-frequency unit in this application is used to transmit one complex-valued modulation symbol.

[0504] As an example, one time-frequency unit described in this application corresponds to a complex value.

[0505] As an example, the transmission channel occupied by the first communication signal includes DL-SCH.

[0506] As an example, the physical layer channel occupied by the first communication signal includes PDCCH.

[0507] As an example, the physical layer channel occupied by the first communication signal includes PDSCH.

[0508] As an example, the physical layer channel occupied by the first communication signal includes PSCCH.

[0509] As an example, the physical layer channel occupied by the first communication signal includes PSSCH.

[0510] As an example, the physical layer channel occupied by the first communication signal includes SSB.

[0511] As an example, the SSB described in this application refers to: Synchronization Signal Block, the synchronization signal block.

[0512] As an example, the SSB described in this application refers to: SS (Synchronization Signal) / PBCH (Physical Broadcast Channel) block, the synchronization signal / physical broadcast channel block.

[0513] 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.

[0514] As an example, the steps in block F51 in Appendix Figure 5 exist; the step S630 described in this application is after the steps in block F51 described in Example 5.

[0515] As an example, the steps in block F51 in Appendix Figure 5 exist; the step S640 described in this application is after the steps in block F51 described in Example 5.

[0516] Example 7

[0517] Embodiment 7 exemplifies a schematic diagram of the time-domain waveform of the first sensing waveform according to an embodiment of the present application, as shown in the accompanying Figure 7 figure. In the accompanying Figure 7 figure, the horizontal axis represents time, and the vertical axis represents amplitude. The lightly shaded area represents the time-domain resources occupied by a multi-carrier symbol in time, and the cross-hatched area represents the time-domain resources occupied by a cyclic prefix in time.

[0518] In Embodiment 7, the multiple multi-carrier symbols correspond one-to-one with the multiple cyclic prefixes, and each cyclic prefix immediately precedes the corresponding multi-carrier symbol. For any one of the multiple multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the multiple multi-carrier symbols are arranged continuously in time.

[0519] As an embodiment, the multiple multi-carrier symbols correspond one-to-one with the multiple cyclic prefixes, and each cyclic prefix immediately precedes the corresponding multi-carrier symbol.

[0520] As an embodiment, the time-domain resources composed of the multiple multi-carrier symbols and the multiple cyclic prefixes are continuous.

[0521] As an embodiment, the time-domain resources composed of at least two multi-carrier symbols and the corresponding cyclic prefixes among the multiple multi-carrier symbols and the multiple cyclic prefixes are continuous.

[0522] As an embodiment, the multiple cyclic prefixes are respectively cyclic prefix #1, cyclic prefix #2,..., cyclic prefix #K1, and the multiple multi-carrier symbols are respectively multi-carrier symbol #1, multi-carrier symbol #2,..., multi-carrier symbol #K1; the order of arrangement of the multiple cyclic prefixes and the multiple multi-carrier symbols in the time domain is cyclic prefix #1, multi-carrier symbol #1, cyclic prefix #2, multi-carrier symbol #2,..., cyclic prefix #K1, multi-carrier symbol #K1; where K1 is a positive integer greater than 1.

[0523] As an embodiment, the multiple multi-carrier symbols and the multiple cyclic prefixes constitute one time unit in the present application.

[0524] As an embodiment, the multiple multi-carrier symbols and the multiple cyclic prefixes belong to one time unit in the present application.

[0525] As an embodiment, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: assuming that the multiple multi-carrier symbols occupy continuous time-domain resources.

[0526] As an example, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: assuming that each of the multiple multi-carrier symbols follows another multi-carrier symbol among the multiple multi-carrier symbols.

[0527] As an example, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols are arranged continuously in time before inserting the cyclic prefix.

[0528] As an example, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols are arranged in sequence in time before inserting the cyclic prefix.

[0529] As an example, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols occupy continuous time domain resources in time before inserting the cyclic prefix.

[0530] As an example, the multiple cyclic prefixes are respectively cyclic prefix #1, cyclic prefix #2,..., cyclic prefix #K1, and the multiple multi-carrier symbols are respectively multi-carrier symbol #1, multi-carrier symbol #2,..., multi-carrier symbol #K1; the order of the multiple cyclic prefixes and multiple multi-carrier symbols arranged in the time domain is in sequence cyclic prefix #1, multi-carrier symbol #1, cyclic prefix #2, multi-carrier symbol #2,..., cyclic prefix #K1, multi-carrier symbol #K1; where K1 is a positive integer greater than 1; the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols are in sequence multi-carrier symbol #1, multi-carrier symbol #2,..., multi-carrier symbol #K1 in time.

[0531] As an example, the multiple cyclic prefixes are respectively cyclic prefix #1, cyclic prefix #2,..., cyclic prefix #K1, and the multiple multi-carrier symbols are respectively multi-carrier symbol #1, multi-carrier symbol #2,..., multi-carrier symbol #K1; the order of the multiple cyclic prefixes and multiple multi-carrier symbols arranged in the time domain is in sequence cyclic prefix #1, multi-carrier symbol #1, cyclic prefix #2, multi-carrier symbol #2,..., cyclic prefix #K1, multi-carrier symbol #K1; where K1 is a positive integer greater than 1; the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols are continuously multi-carrier symbol #1, multi-carrier symbol #2,..., multi-carrier symbol #K1 in time.

[0532] As an example, the starting phase of the first sensing waveform in any of the multi-carrier symbols is independent of the duration in the time domain of any of the multiple cyclic prefixes.

[0533] As an embodiment, the starting phase of the first sensing waveform in any of the multi-carrier symbols is independent of the length of any of the multiple cyclic prefixes.

[0534] As an embodiment, a part of the first sensing waveform in any of the multi-carrier symbols is a waveform with a continuous phase over time.

[0535] As an embodiment, the phases of the first sensing waveform in any two consecutive multi-carrier symbols among the multiple multi-carrier symbols are continuous.

[0536] As an embodiment, the phase of the first sensing waveform between any two temporally adjacent multi-carrier symbols among the multiple multi-carrier symbols is continuous.

[0537] As an embodiment, a part of the phases of the first sensing waveform in the multiple multi-carrier symbols is continuous.

[0538] As an embodiment, the phase of the waveform formed by a part of the first sensing waveform in the multiple multi-carrier symbols is continuous.

[0539] As an embodiment, there is no phase jump in the first sensing waveform between any two consecutive multi-carrier symbols among the multiple multi-carrier symbols.

[0540] As an embodiment, there is no phase jump in the first sensing waveform between any two temporally adjacent multi-carrier symbols among the multiple multi-carrier symbols.

[0541] As an embodiment, there is no phase jump in a part of the first sensing waveform in the multiple multi-carrier symbols.

[0542] As an embodiment, there is no phase jump in the waveform formed by a part of the first sensing waveform in the multiple multi-carrier symbols.

[0543] As an embodiment, the first sensing waveform in the multiple multi-carrier symbols is based on memory-based signal transmission.

[0544] As an embodiment, the first sensing waveform between any two temporally adjacent multi-carrier symbols among the multiple multi-carrier symbols is based on memory-based signal transmission.

[0545] As an embodiment, a part of the first sensing waveform in the multiple multi-carrier symbols is based on memory-based signal transmission.

[0546] As an embodiment, the waveform formed by a part of the first sensing waveform in the multiple multi-carrier symbols is based on the memory-based signal transmission mode.

[0547] Example 8

[0548] Embodiment 8 exemplifies a schematic diagram of the time-domain resources of the first sensing waveform according to an embodiment of the present application, as shown in the appendix Figure 8 as shown. In the appendix Figure 8 , the horizontal axis represents time. A rectangle filled with an upper diagonal line represents the time-domain resources occupied by one time unit described in the present application in time. The lightly filled area represents the time-domain resources occupied by one multi-carrier symbol in time. The cross-hatched area represents the time-domain resources occupied by one cyclic prefix in time. The area within the thick line box in one time unit represents the time-domain resources occupied by the first sensing waveform in time; wherein, one time unit described in the present application includes at least one multi-carrier symbol and at least one cyclic prefix.

[0549] In Embodiment 8, case (a) means that the first sensing waveform occupies continuous time-domain resources in one time unit described in the present application; case (b) means that the first sensing waveform occupies discontinuous time-domain resources in one time unit described in the present application; the first sensing waveform appears periodically in the time domain.

[0550] As an embodiment, the first sensing waveform occupies continuous time-domain resources.

[0551] As an embodiment, the first sensing waveform occupies discontinuous time-domain resources.

[0552] As an embodiment, the first sensing waveform occupies continuous time-domain resources in one time unit described in the present application.

[0553] As an embodiment, the first sensing waveform occupies discontinuous time-domain resources in one time unit described in the present application.

[0554] As an embodiment, the first sensing waveform is a waveform with a continuous phase over time in one time unit described in the present application.

[0555] As an embodiment, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols belong to one time unit described in the present application, assuming that one time unit described in the present application occupies continuous time-domain resources in time.

[0556] As an embodiment, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols belong to one time unit described in the present application, assuming that each multi-carrier symbol in one time unit described in the present application follows another multi-carrier symbol in one time unit described in the present application in time.

[0557] As an embodiment, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols belong to one time unit described in the present application, and it is assumed that the multi-carrier symbols included in one time unit described in the present application are arranged in sequence in time before inserting the cyclic prefix.

[0558] As an embodiment, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols belong to one time unit described in the present application, and it is assumed that the multi-carrier symbols included in one time unit described in the present application are continuously arranged in time before inserting the cyclic prefix.

[0559] As an embodiment, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: the multiple multi-carrier symbols belong to one time unit described in the present application, and it is assumed that the multi-carrier symbols included in one time unit described in the present application occupy continuous time domain resources in time before inserting the cyclic prefix.

[0560] As an embodiment, the meaning of assuming that the multiple multi-carrier symbols are arranged continuously in time includes: one time unit includes K2 multi-carrier symbols, and one time unit is successively multi-carrier symbol #1, multi-carrier symbol #2,..., multi-carrier symbol #K2 in time, where K2 is a positive integer not less than K1 described in the present application, and K1 of the K2 multi-carrier symbols belong to the multiple multi-carrier symbols.

[0561] As an embodiment, the phases of any two consecutive multi-carrier symbols of the first sensing waveform on one time unit described in the present application are continuous.

[0562] As an embodiment, the phase is continuous between two multi-carrier symbols adjacent in the time domain of the first sensing waveform on one time unit described in the present application.

[0563] As an embodiment, part of the phases of the first sensing waveform on one time unit described in the present application are continuous.

[0564] As an embodiment, the phase of the waveform formed by part of the first sensing waveform on one time unit described in the present application is continuous.

[0565] As an embodiment, there is no phase jump between any two consecutive multi-carrier symbols of the first sensing waveform on one time unit described in the present application.

[0566] As an embodiment, there is no phase jump between two multi-carrier symbols adjacent in the time domain of the first sensing waveform on one time unit described in the present application.

[0567] As an embodiment, the portion of the first sensing waveform in one time unit in the present application has no phase jump.

[0568] As an embodiment, the waveform formed by the portion of the first sensing waveform in one time unit in the present application has no phase jump.

[0569] As an embodiment, the first sensing waveform is based on memory-based signal transmission in one time unit in the present application.

[0570] As an embodiment, the first sensing waveform is based on memory-based signal transmission between two adjacent multi-carrier symbols in the time domain in one time unit in the present application.

[0571] As an embodiment, the portion of the first sensing waveform in one time unit in the present application is based on memory-based signal transmission.

[0572] As an embodiment, the waveform formed by the portion of the first sensing waveform in one time unit in the present application is based on a memory-based signal transmission mode.

[0573] Example 9

[0574] Embodiment 9 exemplifies a schematic diagram of the frequency-domain resources occupied by the first sensing waveform in one multi-carrier symbol according to an embodiment of the present application, as shown in the appendix Figure 9 shown. In the appendix Figure 9 , the horizontal axis represents time, the vertical axis represents frequency, the diamond-cross-hatched area represents the time-domain resources occupied by one multi-carrier symbol in time and the frequency-domain resources occupied by the first sensing signal in the one multi-carrier symbol in frequency, and the grey-filled area represents one multi-carrier symbol in time and the frequency-domain resources occupied by the first communication signal in the one multi-carrier symbol in frequency. It should be noted that the appendix Figure 9 is only for illustrative purposes and does not represent the actual time-frequency resource occupancy ratio of the first sensing waveform and the first communication signal.

[0575] In Embodiment 9, there is no time-frequency unit that is simultaneously occupied by the first sensing waveform and the first communication signal.

[0576] As an embodiment, there is no time-frequency unit that is simultaneously occupied by the first sensing waveform and the first communication signal.

[0577] As an embodiment, any one of the multiple multi-carrier symbols is simultaneously occupied by the first sensing waveform and the first communication signal.

[0578] As an embodiment, the frequency-domain resources occupied by the first sensing waveform and the first communication signal on a given multi-carrier symbol are orthogonal.

[0579] As an embodiment, the frequency-domain resources occupied by the first sensing waveform and the first communication signal on a given multi-carrier symbol do not overlap.

[0580] As an embodiment, the first sensing waveform occupies continuous frequency-domain resources on a given multi-carrier symbol.

[0581] As an embodiment, the first communication signal occupies continuous frequency-domain resources on a given multi-carrier symbol.

[0582] As an embodiment, the first communication signal occupies discontinuous frequency-domain resources on a given multi-carrier symbol.

[0583] As an embodiment, there are at least two multi-carrier symbols simultaneously occupied by the first sensing waveform and the first communication signal.

[0584] As a sub-embodiment of this embodiment, the frequency-domain resources occupied by the first sensing waveform and the first communication signal on the at least two multi-carrier symbols are orthogonal.

[0585] As a sub-embodiment of this embodiment, the frequency-domain resources occupied by the first sensing waveform and the first communication signal on the at least two multi-carrier symbols overlap.

[0586] As a sub-embodiment of this embodiment, the frequency-domain resources occupied by the first sensing waveform and the first communication signal on the at least two multi-carrier symbols are not orthogonal.

[0587] As a sub-embodiment of this embodiment, the frequency-domain resources occupied by the first sensing waveform and the first communication signal on the at least two multi-carrier symbols do not overlap.

[0588] Example 10

[0589] Embodiment 10 exemplifies a first schematic diagram of the frequency-domain resources occupied by the first sensing waveform according to an embodiment of the present application, as shown in the attached Figure 10 figure. In the attached Figure 10 figure, the horizontal axis represents time, and the vertical axis represents frequency. A rhombus cross-filled area represents the time-domain resources occupied by a multi-carrier symbol in time and the frequency-domain resources occupied by the first sensing signal in the multi-carrier symbol in frequency. A gray-filled area represents a multi-carrier symbol in time and the frequency-domain resources occupied by the first communication signal in the multi-carrier symbol in frequency. It should be noted that the attached Figure 10For illustrative purposes only, and does not represent the actual time-frequency resource occupancy ratios of the first sensing waveform and the first communication signal.

[0590] In Embodiment 10, the first sensing waveform occupies the same number of time-frequency units in two frequency-domain multi-carrier symbols corresponding to any two of the plurality of multi-carrier symbols.

[0591] As an embodiment, the first sensing waveform occupies the same number of time-frequency units in two frequency-domain multi-carrier symbols corresponding to any two of the plurality of multi-carrier symbols.

[0592] As an embodiment, the first sensing waveform occupies the same number of time-frequency units in the frequency-domain multi-carrier symbol corresponding to each of the plurality of multi-carrier symbols.

[0593] As an embodiment, the first sensing waveform occupies the same number of time-frequency units on any two of the plurality of multi-carrier symbols.

[0594] As an embodiment, the first sensing waveform occupies the same number of time-frequency units on each of the plurality of multi-carrier symbols.

[0595] As an embodiment, the number of time-frequency units occupied by the first sensing waveform remains unchanged on the plurality of multi-carrier symbols.

[0596] As an embodiment, the first sensing waveform occupies the same bandwidth on any two of the plurality of multi-carrier symbols.

[0597] As an embodiment, the first sensing waveform occupies the same bandwidth on each of the plurality of multi-carrier symbols.

[0598] As an embodiment, the bandwidth occupied by the first sensing waveform remains unchanged on the plurality of multi-carrier symbols.

[0599] As an embodiment, the first sensing waveform occupies M1 time-frequency units in a frequency-domain multi-carrier symbol corresponding to any one of the plurality of multi-carrier symbols, where M1 is a positive integer greater than 1.

[0600] As a sub-embodiment of this embodiment, the value of M1 is fixed; the system design of the above solution is simple and easy to implement.

[0601] As a sub-embodiment of this embodiment, the value of M1 is configurable; the above solution increases configuration flexibility and increases frequency efficiency.

[0602] As a sub - embodiment of this embodiment, the value of M1 depends on the first sensing waveform; the above - mentioned solution facilitates waveform expansion.

[0603] As a sub - embodiment of this embodiment, the M1 time - frequency units are continuous in the frequency domain.

[0604] As a sub - embodiment of this embodiment, the M1 time - frequency units correspond to Q1 consecutive resource blocks in the frequency domain.

[0605] As an embodiment, in this application, the resource block refers to: Resource Block, RB.

[0606] As an embodiment, in this application, the resource block refers to: Resource Group, RG.

[0607] As an embodiment, in this application, the resource block includes: physical resource block.

[0608] As an embodiment, in this application, the resource block includes: virtual resource block.

[0609] As an embodiment, in this application, the resource block includes: common resource block.

[0610] As an embodiment, in this application, the resource block includes frequency - domain resources.

[0611] As an embodiment, in this application, the resource block includes time - frequency resources.

[0612] Typically, one resource block in this application includes 12 consecutive time - frequency units in the frequency domain.

[0613] Typically, one resource block in this application includes 12 consecutive sub - carriers.

[0614] Example 11

[0615] Embodiment 11 exemplifies a second schematic diagram of the frequency - domain resources occupied by the first sensing waveform according to an embodiment of this application, as shown in the appendix Figure 11 shown. In the appendix Figure 11 , the horizontal axis represents time, and the vertical axis represents frequency. A diamond - cross - filled area represents the time - domain resources occupied by a multi - carrier symbol in time and the frequency - domain resources occupied by the first sensing signal in the multi - carrier symbol in frequency. A gray - filled area represents a multi - carrier symbol in time and the frequency - domain resources occupied by the first communication signal in the multi - carrier symbol in frequency. It should be noted that the appendix Figure 11For illustrative purposes only, and does not represent the actual time-frequency resource occupancy ratio of the first sensing waveform and the first communication signal.

[0616] In Embodiment 11, for any one of the multiple multi-carrier symbols, the frequency-domain resources occupied by the first sensing waveform are shifted according to the time-domain position of the any one of the multi-carrier symbols.

[0617] As an embodiment, for any one of the multiple multi-carrier symbols, the frequency-domain resources occupied by the first sensing waveform are shifted according to the time-domain position of the any one of the multi-carrier symbols.

[0618] As an embodiment, the multiple multi-carrier symbols respectively correspond to multiple frequency-domain multi-carrier symbols in the frequency domain. The first sensing waveform respectively occupies multiple time-frequency unit sets in the multiple frequency-domain multi-carrier symbols. The frequency-domain position of any one of the multiple time-frequency unit sets is offset according to the time-domain position of the frequency-domain multi-carrier symbol where the any one of the time-frequency unit sets is located.

[0619] As an embodiment, the multiple multi-carrier symbols respectively correspond to multiple frequency-domain multi-carrier symbols in the frequency domain. The first sensing waveform respectively occupies multiple time-frequency unit sets in the multiple frequency-domain multi-carrier symbols. The frequency-domain resources occupied by any two of the multiple time-frequency unit sets are orthogonal.

[0620] As an embodiment, the multiple multi-carrier symbols respectively correspond to multiple frequency-domain multi-carrier symbols in the frequency domain. The first sensing waveform respectively occupies multiple time-frequency unit sets in the multiple frequency-domain multi-carrier symbols. The multiple time-frequency unit sets altogether occupy M2 time-frequency units. The M2 corresponds to the size of the FFT transformation of any one of the multiple multi-carrier symbols; the M2 is a positive integer greater than 1.

[0621] As an embodiment, M2 in the present application corresponds to the number of sub-carriers included in a frequency-domain multi-carrier symbol in the present application.

[0622] As an embodiment, M2 in the present application corresponds to the number of sampling points included in a multi-carrier symbol in the present application.

[0623] As an embodiment, M2 in the present application corresponds to the size of the FFT when a multi-carrier symbol in the present application is transformed into a frequency-domain multi-carrier symbol.

[0624] As an embodiment, the multiple multi-carrier symbols in the present application are subjected to FFT to obtain the multiple frequency-domain multi-carrier symbols in the present application.

[0625] As an example, the multiple frequency-domain multi-carrier symbols in the present application are subjected to IFFT (Inverse Fast Fourier Transform) to obtain the multiple multi-carrier symbols in the present application.

[0626] As an example, the first sensing signal occupies K1 multi-carrier symbols and K1 cyclic prefixes in the first time window, and the first time window corresponds to the period of the first sensing signal; the first sensing signal occupies K1 time-frequency unit sets in the first time window, each time-frequency unit set in the K1 time-frequency unit sets occupies one multi-carrier symbol in the time domain, the K1 time-frequency unit sets respectively occupy the K1 multi-carrier symbols in the first time window, and the frequency-domain position of any time-frequency unit set in the K1 time-frequency unit sets depends on the position of the multi-carrier symbol occupied by the any time-frequency unit set in the time domain in the first time window.

[0627] As a sub-example of this example, the first time window is one time unit in the present application.

[0628] As an example, the multiple multi-carrier symbols include at least three multi-carrier symbols, and the three consecutive multi-carrier symbols are the first multi-carrier symbol, the second multi-carrier symbol, and the third multi-carrier symbol respectively; the second multi-carrier symbol is offset by X2 multi-carrier symbols in the time domain relative to the first multi-carrier symbol, the third multi-carrier symbol is offset by X2 multi-carrier symbols in the time domain relative to the second multi-carrier symbol, and the position of the first time-frequency unit occupied by the first sensing waveform on the second multi-carrier symbol is offset by Y1 time-frequency units relative to the position of the first time-frequency unit occupied by the first sensing waveform on the first multi-carrier symbol. Then, the position of the first time-frequency unit occupied by the first sensing waveform on the third multi-carrier symbol is offset by Y1 time-frequency units relative to the position of the first time-frequency unit occupied by the first sensing waveform on the second multi-carrier symbol; X2 is a positive integer, and Y1 is a non-zero integer.

[0629] As a sub-example of this example, X2 is equal to 1, and the first multi-carrier symbol, the second multi-carrier symbol, and the third multi-carrier symbol are continuous in the time domain.

[0630] As a sub-example of this example, X2 is greater than 1, and the first multi-carrier symbol, the second multi-carrier symbol, and the third multi-carrier symbol belong to one time unit in the present application.

[0631] As a sub-example of this example, Y1 is a positive integer.

[0632] As a sub - embodiment of this embodiment, the Y1 is a negative integer.

[0633] As a sub - embodiment of this embodiment, the first sensing waveform occupies M1 time - frequency units respectively on the at least three multi - carrier symbols, where M1 is a positive integer, and the absolute value of Y1 is a positive integer not less than M1.

[0634] As a sub - embodiment of this embodiment, the first sensing waveform occupies M1 time - frequency units respectively on the at least three multi - carrier symbols, where M1 is a positive integer, and the absolute value of Y1 is a positive integer equal to M1.

[0635] As a sub - embodiment of this embodiment, the first time - frequency unit occupied on a multi - carrier symbol means that the first time - frequency unit occupies the multi - carrier symbol in the time domain and has the smallest sub - carrier index corresponding to the sub - carrier occupied in the frequency domain.

[0636] As a sub - embodiment of this embodiment, the first time - frequency unit occupied on a multi - carrier symbol means that the first time - frequency unit occupies the multi - carrier symbol in the time domain and has the smallest resource - block index corresponding to the sub - carrier occupied in the frequency domain.

[0637] As a sub - embodiment of this embodiment, the first time - frequency unit occupied on a multi - carrier symbol means that the first time - frequency unit occupies the multi - carrier symbol in the time domain and the sub - carrier occupied in the frequency domain has the lowest frequency.

[0638] As a sub - embodiment of this embodiment, the first time - frequency unit occupied on a multi - carrier symbol means that the first time - frequency unit occupies the multi - carrier symbol in the time domain and the sub - carrier occupied in the frequency domain has the lowest center frequency.

[0639] As an embodiment, the sub - carriers are indexed in ascending order of frequency in the one resource block.

[0640] Example 12

[0641] Embodiment 12 exemplifies a schematic diagram of a set of time - frequency units according to an embodiment of the present application, as shown in the appendix Figure 12 shown. In the appendix Figure 12Among them, the rhombus-cross-hatched area represents, in terms of time, the time-domain resources occupied by the first multi-carrier symbol occupied by the first sensing waveform, and represents, in terms of frequency, the frequency-domain resources occupied by the set of time-frequency units occupied by the first sensing signal in the first multi-carrier symbol; wherein, the first parameter is the frequency-domain position of the set of time-frequency units in the first frequency-domain multi-carrier symbol among the multiple sets of time-frequency units, and the second parameter is the number of time-frequency units occupied by any set of time-frequency units in the corresponding frequency-domain multi-carrier symbol among the multiple sets of time-frequency units.

[0642] In Embodiment 12, the first sensing waveform occupies multiple sets of time-frequency units in the frequency domain, and the multiple sets of time-frequency units are respectively located in multiple frequency-domain multi-carrier symbols corresponding to the multiple multi-carrier symbols; the first signaling indicates at least one of the first parameter and the second parameter; the first parameter is the frequency-domain position of the set of time-frequency units in the first frequency-domain multi-carrier symbol among the multiple sets of time-frequency units, and the second parameter is the number of time-frequency units occupied by any set of time-frequency units in the corresponding frequency-domain multi-carrier symbol among the multiple sets of time-frequency units.

[0643] As an embodiment, the first sensing waveform occupies multiple sets of time-frequency units in the frequency domain, and the multiple sets of time-frequency units are respectively located in multiple frequency-domain multi-carrier symbols corresponding to the multiple multi-carrier symbols; the first signaling indicates at least one of the first parameter and the second parameter; the first parameter is the frequency-domain position of the set of time-frequency units in the first frequency-domain multi-carrier symbol among the multiple sets of time-frequency units, and the second parameter is the number of time-frequency units occupied by any set of time-frequency units in the corresponding frequency-domain multi-carrier symbol among the multiple sets of time-frequency units.

[0644] As an embodiment, in the present application, one set of time-frequency units occupies one symbol in the time domain and occupies M1 consecutive sub-carriers in the frequency domain, where M1 is a positive integer.

[0645] As an embodiment, the first parameter is the frequency-domain position of the set of time-frequency units in the first frequency-domain multi-carrier symbol among the multiple sets of time-frequency units.

[0646] As an embodiment, the first parameter is the position of the first time-frequency unit occupied by the first sensing waveform on the frequency-domain multi-carrier symbol corresponding to the first multi-carrier symbol occupied in the time domain.

[0647] As an embodiment, the second parameter is the number of sub-carriers occupied by any set of time-frequency units in the frequency domain among the multiple sets of time-frequency units.

[0648] As an embodiment, the second parameter is the number of resource blocks occupied by any time-frequency unit set in the frequency domain among the multiple time-frequency unit sets.

[0649] As an embodiment, the second parameter corresponds to the M1 in this application.

[0650] As an embodiment, the second parameter corresponds to the Q1 in this application.

[0651] As an embodiment, the first signaling explicitly indicates at least one of the first parameter and the second parameter.

[0652] As an embodiment, the first signaling implicitly indicates at least one of the first parameter and the second parameter.

[0653] As an embodiment, the first signaling directly indicates at least one of the first parameter and the second parameter.

[0654] As an embodiment, the first signaling indirectly indicates at least one of the first parameter and the second parameter.

[0655] As an embodiment, the first signaling indicates the first parameter.

[0656] As an embodiment, the first signaling indicates the second parameter.

[0657] As an embodiment, the first signaling indicates the first parameter and the second parameter.

[0658] Example 13

[0659] Example 13 exemplifies a schematic diagram of a first parameter according to an embodiment of this application, as shown in the appendix Figure 13 as shown. In the appendix Figure 13 , the horizontal axis represents time, the vertical axis represents frequency, and a diamond-cross-hatched area represents the time-domain resources occupied by the first multi-carrier symbol occupied by the first sensing waveform in time, and represents the frequency-domain resources occupied by the time-frequency unit set occupied by the first sensing signal in the first multi-carrier symbol in frequency.

[0660] In Example 13, the first parameter is a first slope, and the unit of the first slope is at least one of hertz per microsecond (Hz / μs), megahertz per millisecond (MHz / ms), resource block / duration of a multi-carrier symbol, resource block set / duration of a multi-carrier symbol, resource block bundle / duration of a multi-carrier symbol, resource block / slot, resource block bundle / slot, or resource block set / slot.

[0661] As an example, the first parameter is a first slope, and the unit of the first slope is at least one of hertz per microsecond (Hz / μs), megahertz per millisecond (MHz / ms), resource block / duration of a multi-carrier symbol, resource block set / duration of a multi-carrier symbol, resource block bundle / duration of a multi-carrier symbol, resource block / slot, resource block bundle / slot, or resource block set / slot.

[0662] As an example, when the unit of the first slope is Hz / μs, the first slope is used to determine the number of time-frequency units occupied by any one of the multiple sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0663] As an example, when the unit of the first slope is MHz / ms, the first slope is used to determine the number of time-frequency units occupied by any one of the multiple sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0664] As an example, when the unit of the first slope is resource block / duration of a multi-carrier symbol, the first slope is used to determine the number of resource blocks occupied by any one of the multiple sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0665] As an example, when the unit of the first slope is resource block set / duration of a multi-carrier symbol, the first slope is used to determine the number of resource block sets occupied by any one of the multiple sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0666] As a sub-example of this example, the resource block set refers to: RB set.

[0667] As a sub-example of this example, the number of resource blocks included in the resource block set is fixed.

[0668] As a sub-example of this example, the number of resource blocks included in the resource block set is configurable.

[0669] As a sub-example of this example, the resource blocks included in the resource block set are continuous in the frequency domain.

[0670] As an example, when the unit of the first slope is resource block bundle / duration of a multi-carrier symbol, the first slope is used to determine the number of resource block bundles occupied by any one of the multiple sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0671] As a sub-example of this example, the resource block bundle refers to: RB bundle.

[0672] As a sub - embodiment of this embodiment, the resource block bundle refers to: RB cluster.

[0673] As a sub - embodiment of this embodiment, the number of resource blocks included in the resource block bundle is fixed.

[0674] As a sub - embodiment of this embodiment, the number of resource blocks included in the resource block bundle is configurable.

[0675] As a sub - embodiment of this embodiment, the resource blocks included in the resource block bundle are contiguous in the frequency domain.

[0676] As an embodiment, when the unit of the first slope is resource block / slot, the first slope is used to determine the total number of resource blocks occupied by the plurality of time - frequency unit sets in one slot.

[0677] As an embodiment, when the unit of the first slope is resource block bundle / slot, the first slope is used to determine the total number of resource block bundles occupied by the plurality of time - frequency unit sets in one slot.

[0678] As a sub - embodiment of this embodiment, the number of resource blocks included in the resource block bundle is fixed.

[0679] As a sub - embodiment of this embodiment, the number of resource blocks included in the resource block bundle is configurable.

[0680] As a sub - embodiment of this embodiment, the resource blocks included in the resource block bundle are contiguous in the frequency domain.

[0681] As an embodiment, when the unit of the first slope is resource block set / slot, the first slope is used to determine the total number of resource block sets occupied by the plurality of time - frequency unit sets in one slot.

[0682] As a sub - embodiment of this embodiment, the number of resource blocks included in the resource block set is fixed.

[0683] As a sub - embodiment of this embodiment, the number of resource blocks included in the resource block set is configurable.

[0684] As a sub - embodiment of this embodiment, the resource blocks included in the resource block set are contiguous in the frequency domain.

[0685] As an embodiment, the first parameter and the identifier of the first node are jointly used to determine the frequency - domain position of the time - frequency unit set in the first frequency - domain multi - carrier symbol among the plurality of frequency - domain multi - carrier symbols in the plurality of time - frequency unit sets.

[0686] As a sub - embodiment of this embodiment, the frequency - domain positions of the set of time - frequency units in the first frequency - domain multi - carrier symbol include a starting position and an offset. The first parameter indicates the starting position, and the identity of the first node determines the offset.

[0687] As an embodiment, the frequency - domain positions of the set of time - frequency units in the first frequency - domain multi - carrier symbol include a starting position and an offset. The starting position is fixed or predefined, and the identity of the first node determines the offset.

[0688] As an embodiment, the identity of the first node in this application is the Identity of the first node.

[0689] As an embodiment, the identity of the first node in this application is the Identification of the first node.

[0690] As an embodiment, the identity of the first node is the PCI of the first node.

[0691] As an embodiment, the identity of the first node is the ECGI (E - UTRAN Cell Global Identifier) of the first node.

[0692] As an embodiment, the identity of the first node is the E - CID (Enhanced Cell - ID) of the first node.

[0693] As an embodiment, the identity of the first node is the CORESET (COntrol REsource SET) Pool Index of the first node.

[0694] As an embodiment, the identity of the first node is the ServCellIndex of the first node.

[0695] As an embodiment, the identity of the first node is the servCellIdentity of the first node.

[0696] As an embodiment, the identity of the first node is the servCellID of the first node.

[0697] As an embodiment, the PCI in this application refers to: Physical Cell Identifier, the physical cell identifier.

[0698] As an example, in the present application, PCI refers to: Physical Cell Identity, the physical cell identifier.

[0699] As an example, in the present application, PCI refers to: Physical-layer Cell Identity, the physical layer cell identifier.

[0700] As an example, in the present application, PCI refers to: physCellId.

[0701] Example 14

[0702] Example 14 exemplifies a schematic diagram of the numerical values of symbols transmitted in a time-frequency unit according to an embodiment of the present application, as shown in the appendix Figure 14 as shown. In the appendix Figure 14 the numerical values of the symbols transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depend on the first sensing waveform.

[0703] In Example 14, the numerical values of the symbols transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depend on the first sensing waveform.

[0704] As an example, the numerical values of the symbols transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depend on the first sensing waveform.

[0705] As an example, the symbols in the present application are different from the multi-carrier symbols in the present application.

[0706] As an example, the numerical values of the symbols in the present application include complex numerical values.

[0707] As an example, the numerical values of the symbols in the present application include amplitude and phase.

[0708] As an example, one time-frequency unit in the present application transmits the one symbol.

[0709] As an example, one time-frequency unit in the present application transmits the numerical value of the one symbol.

[0710] As an example, the fact that the numerical values of the symbols transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depend on the first sensing waveform means that the numerical values of the symbols transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets are generated by the first sensing waveform.

[0711] As an example, the meaning that the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform means that: the first node uses the first sensing waveform to generate the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets.

[0712] As an example, the meaning that the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform means that: the complex value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets is generated by the first sensing waveform.

[0713] As an example, the meaning that the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform means that: the first node uses the first sensing waveform to generate the complex value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets.

[0714] As an example, the meaning that the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform means that: the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets is generated by taking the FFT of the sampling points of the first sensing waveform in the time domain.

[0715] As an example, the meaning that the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform means that: the first node uses the FFT of the sampling points of the first sensing waveform in the time domain to generate the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets.

[0716] As an example, the meaning that the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform means that: the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets does not carry user information.

[0717] As an example, the meaning that the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets depends on the first sensing waveform means that: the value of the symbol transmitted in the time-frequency units included in any one of the multiple time-frequency unit sets is known to the receiver of the first sensing waveform.

[0718] As an embodiment, the value of the symbol transmitted in any time-frequency unit set among the multiple time-frequency unit sets is predefined.

[0719] As a sub-embodiment of this embodiment, the predefined value is determined by the first sensing waveform.

[0720] As an embodiment, the value of the symbol transmitted in any time-frequency unit set among the multiple time-frequency unit sets is obtained by looking up a table.

[0721] As a sub-embodiment of this embodiment, the value obtained by looking up the table is determined by the first sensing waveform.

[0722] As an embodiment, any one of the multiple frequency-domain multi-carrier symbols corresponding to the multiple multi-carrier symbols is not used for the transmission of DMRS (DeModulation Reference Signal).

[0723] Example 15

[0724] Embodiment 15 exemplifies a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in the appendix Figure 15 shown. In the appendix Figure 15 , the processing device 1500 in the first node includes a first transmitter 1501.

[0725] In Embodiment 15, the first transmitter 1501 transmits a first sensing waveform, and the first sensing waveform occupies multiple multi-carrier symbols and multiple cyclic prefixes in the time domain. The multiple multi-carrier symbols correspond one-to-one with the multiple cyclic prefixes, and each cyclic prefix follows immediately before the corresponding multi-carrier symbol.

[0726] In Embodiment 15, for any one of the multiple multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the multiple multi-carrier symbols are arranged continuously in time.

[0727] As an embodiment, the first transmitter 1501 transmits a first communication signal. At least one of the multiple multi-carrier symbols is occupied by both the first sensing waveform and the first communication signal; there is no time-frequency unit occupied by both the first sensing waveform and the first communication signal; the one time-frequency unit occupies one multi-carrier symbol in the time domain and one sub-carrier in the frequency domain.

[0728] As an example, the first sensing waveform occupies the same number of time-frequency units in two frequency-domain multi-carrier symbols corresponding to any two of the plurality of multi-carrier symbols.

[0729] As an example, for any one of the plurality of multi-carrier symbols, the frequency-domain resources occupied by the first sensing waveform are shifted according to the time-domain position of the any one of the multi-carrier symbols.

[0730] As an example, the first transmitter 1501 transmits first signaling, and the first signaling indicates the position of the time-frequency units occupied by the first sensing waveform in the frequency domain.

[0731] As an example, the first sensing waveform occupies a plurality of sets of time-frequency units in the frequency domain, and the plurality of sets of time-frequency units are respectively located in the plurality of frequency-domain multi-carrier symbols corresponding to the plurality of multi-carrier symbols; the first signaling indicates at least one of a first parameter and a second parameter; the first parameter is the frequency-domain position of the set of time-frequency units located in the first frequency-domain multi-carrier symbol among the plurality of frequency-domain multi-carrier symbols of the plurality of sets of time-frequency units, and the second parameter is the number of time-frequency units occupied by any one of the plurality of sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0732] As an example, the value of the symbol transmitted in the time-frequency units included in any one of the plurality of sets of time-frequency units depends on the first sensing waveform.

[0733] Typically, the plurality of multi-carrier symbols belong to one time unit in the present application, and the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols in one time unit in the present application.

[0734] Typically, the plurality of multi-carrier symbols belong to one time unit in the present application, and the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the time-domain position of the any one of the multi-carrier symbols in one time unit in the present application.

[0735] As an example, the first sensing waveform is a waveform used by the first node for sensing.

[0736] As an example, the first sensing waveform is a waveform used by the first node for detection.

[0737] As an example, the first sensing waveform is a waveform used by the first node for tracking.

[0738] As an example, the first sensing waveform is a waveform used by the first node for positioning.

[0739] As an embodiment, the first sensing waveform is a waveform adopted in systems after 5G-Advance.

[0740] As an embodiment, the first sensing waveform is a waveform adopted in systems after 6G.

[0741] Typically, the receiver of the first sensing waveform includes the first node described in this application, and the first node receives the echo signal of the first sensing waveform.

[0742] As an embodiment, the first node receives the echo signal of the first sensing waveform through coherent detection.

[0743] As an embodiment, the first node extracts the first sensing waveform from the echo signal of the first sensing waveform.

[0744] As an embodiment, the first node extracts the first sensing waveform from the echo signal of the first sensing waveform in a relevant manner.

[0745] As an embodiment, the first node receives the first sensing waveform through the FFT transformation of the echo signal of the first sensing waveform.

[0746] As an embodiment, the first node receives the first sensing waveform by removing the first communication signal described in this application from the echo signal of the first sensing waveform.

[0747] As an embodiment, the echo signal of the first sensing waveform is the signal reflected by the first sensing waveform via the target node.

[0748] As an embodiment, the first node is a base station device.

[0749] As an embodiment, the first node is a user equipment.

[0750] As an embodiment, the first node is a relay node device.

[0751] As an embodiment, the first node is a device for maintaining the serving cell.

[0752] As an embodiment, the first node is a device for maintaining the serving cell of the second node.

[0753] As an embodiment, the first transmitter 1501 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.

[0754] Example 16

[0755] Embodiment 16 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 16 As shown. In the appendix Figure 16 , the processing device 1600 in the second node includes a first receiver 1601.

[0756] In Embodiment 16, the first receiver 1601 receives a first sensing waveform, which occupies a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, and the plurality of multi-carrier symbols correspond one-to-one with the plurality of cyclic prefixes, and each cyclic prefix immediately precedes the corresponding multi-carrier symbol.

[0757] In Embodiment 16, for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

[0758] As an embodiment, the first receiver 1601 receives a first communication signal, and at least one of the plurality of multi-carrier symbols is simultaneously occupied by the first sensing waveform and the first communication signal; there is no time-frequency unit that is simultaneously occupied by the first sensing waveform and the first communication signal; the one time-frequency unit occupies one multi-carrier symbol in the time domain and one sub-carrier in the frequency domain.

[0759] As an embodiment, the first sensing waveform occupies the same number of time-frequency units in two frequency-domain multi-carrier symbols corresponding to any two of the plurality of multi-carrier symbols.

[0760] As an embodiment, for any one of the plurality of multi-carrier symbols, the frequency-domain resources occupied by the first sensing waveform are shifted according to the time-domain position of the any one of the multi-carrier symbols.

[0761] As an embodiment, the first receiver 1601 receives a first signaling, and the first signaling indicates the position of the time-frequency units occupied by the first sensing waveform in the frequency domain.

[0762] As an embodiment, the first sensing waveform occupies a plurality of sets of time-frequency units in the frequency domain, and the plurality of sets of time-frequency units are respectively located in a plurality of frequency-domain multi-carrier symbols corresponding to the plurality of multi-carrier symbols; the first signaling indicates at least one of a first parameter and a second parameter; the first parameter is the frequency-domain position of the set of time-frequency units in the first frequency-domain multi-carrier symbol among the plurality of frequency-domain multi-carrier symbols in the plurality of sets of time-frequency units, and the second parameter is the number of time-frequency units occupied by any set of time-frequency units in the plurality of sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

[0763] As an embodiment, the value of the symbol transmitted in the time-frequency units included in any set of time-frequency units among the plurality of sets of time-frequency units depends on the first sensing waveform.

[0764] Typically, the plurality of multi-carrier symbols belong to one time unit in the present application, and the starting phase of the first sensing waveform in any of the multi-carrier symbols depends on the starting moment of any of the multi-carrier symbols in one time unit in the present application.

[0765] Typically, the plurality of multi-carrier symbols belong to one time unit in the present application, and the starting phase of the first sensing waveform in any of the multi-carrier symbols depends on the time-domain position of any of the multi-carrier symbols in one time unit in the present application.

[0766] As an embodiment, the second node receives the first sensing waveform reflected by the target node in the present application.

[0767] As an embodiment, the second node receives the first sensing waveform, and in response to receiving the first sensing waveform, sends a feedback signal of the first sensing waveform to the first node.

[0768] As an embodiment, the second node receives and processes the first sensing waveform, and sends a feedback signal of the first sensing waveform to the first node in the present application.

[0769] As an embodiment, the feedback signal of the first sensing waveform is a signal sent by the second node for the sensing result of the first sensing waveform.

[0770] As an embodiment, the feedback signal of the first sensing waveform indicates or includes the sensing result of the first sensing waveform.

[0771] As an embodiment, the feedback signal of the first sensing waveform indicates that the second node receives the first sensing waveform or the communication parameter configuration and selection performed by the second node based on the sensing result of the first sensing waveform.

[0772] As an example, the perception result described in the present application includes position parameters of a target node, such as at least one of position, speed, distance, and direction.

[0773] As an example, the perception result described in the present application includes communication parameters of a target node, such as at least one of a reference signal resource, a quasi-co-location parameter, a large-scale parameter, a beam, a spatial parameter, or an airspace filter that is directionally quasi-co-located with the target node.

[0774] As an example, the second node is a user equipment.

[0775] As an example, the second node is a relay node device.

[0776] As an example, the first receiver 1601 includes at least one of {antenna 452, receiver 454, receive processor 456, multi-antenna receive processor 458, controller / processor 459, memory 460, data source 467} in Embodiment 4.

[0777] Those of ordinary skill in the art can understand that all or part of the steps in the above method can be completed by a program instructing relevant hardware. 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 of 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 hardware form or in the form of software function modules. 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 planes, aircraft, small planes, mobile phones, tablet computers, laptops, vehicle-mounted communication devices, transportation means, vehicles, RSU, wireless sensors, network cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (NarrowBand 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 equipment 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 base stations, and other wireless communication devices.

[0778] Those skilled in the art should understand that the present invention can be implemented in other specified forms without departing from its core or basic characteristics. Therefore, the presently disclosed embodiments should be considered descriptive rather than restrictive in any case. The scope of the invention is determined by the appended claims rather than the preceding 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 sensing, characterized in that, Comprising: A first transmitter that transmits a first sensing waveform, where the first sensing waveform occupies a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, the plurality of multi-carrier symbols corresponding one-to-one with the plurality of cyclic prefixes, and each cyclic prefix immediately follows the corresponding multi-carrier symbol; Wherein, for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

2. The first node according to claim 1, wherein Comprising: The first transmitter that transmits a first communication signal, where at least one of the plurality of multi-carrier symbols is occupied simultaneously by the first sensing waveform and the first communication signal; Wherein, there is no time-frequency unit that is occupied simultaneously by the first sensing waveform and the first communication signal; the one time-frequency unit occupies one multi-carrier symbol in the time domain and one sub-carrier in the frequency domain.

3. The first node according to claim 1 or 2, characterized in that, The first sensing waveform occupies the same number of time-frequency units in two frequency-domain multi-carrier symbols corresponding to any two of the plurality of multi-carrier symbols.

4. The first node according to any one of claims 1 to 3, characterized in that, For any one of the plurality of multi-carrier symbols, the frequency-domain resources occupied by the first sensing waveform are shifted according to the time-domain position of the any one of the multi-carrier symbols.

5. The first node according to any one of claims 1 to 4, characterized in that, Comprising: The first transmitter that transmits a first signaling, where the first signaling indicates the position of the time-frequency units occupied by the first sensing waveform in the frequency domain.

6. The first node according to claim 5, characterized in that, The first sensing waveform occupies a plurality of sets of time-frequency units in the frequency domain, and the plurality of sets of time-frequency units are respectively located in the plurality of frequency-domain multi-carrier symbols corresponding to the plurality of multi-carrier symbols; the first signaling indicates at least one of a first parameter and a second parameter; the first parameter is the frequency-domain position of the set of time-frequency units in the first frequency-domain multi-carrier symbol among the plurality of frequency-domain multi-carrier symbols in the plurality of sets of time-frequency units, and the second parameter is the number of time-frequency units occupied by any one of the plurality of sets of time-frequency units in the corresponding frequency-domain multi-carrier symbol.

7. The first node according to claim 6, wherein The value of the symbol transmitted in the time-frequency units included in any one of the plurality of sets of time-frequency units depends on the first sensing waveform.

8. A second node used for wireless communication sensing, characterized in that, Comprising: A first receiver that receives a first sensing waveform, where the first sensing waveform occupies a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, the plurality of multi-carrier symbols corresponding one-to-one with the plurality of cyclic prefixes, and each cyclic prefix immediately follows the corresponding multi-carrier symbol; Wherein, for any one of the plurality of multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multi-carrier symbols depends on the starting moment of the any one of the multi-carrier symbols when the plurality of multi-carrier symbols are arranged continuously in time.

9. A method for a first node used in wireless communication sensing, characterized in that, Comprising: Transmitting a first sensing waveform, where the first sensing waveform occupies a plurality of multi-carrier symbols and a plurality of cyclic prefixes in the time domain, the plurality of multi-carrier symbols corresponding one-to-one with the plurality of cyclic prefixes, and each cyclic prefix immediately follows the corresponding multi-carrier symbol; Among them, for any one of the multiple multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multiple multi-carrier symbols depends on the starting moment of the any one of the multiple multi-carrier symbols when the multiple multi-carrier symbols are arranged continuously in time.

10. A method for a second node used in wireless communication sensing, characterized in that, Including: Receiving a first sensing waveform, where the first sensing waveform occupies multiple multi-carrier symbols and multiple cyclic prefixes in the time domain, the multiple multi-carrier symbols corresponding one-to-one to the multiple cyclic prefixes, and each cyclic prefix immediately follows the corresponding multi-carrier symbol; Among them, for any one of the multiple multi-carrier symbols, the starting phase of the first sensing waveform in the any one of the multiple multi-carrier symbols depends on the starting moment of the any one of the multiple multi-carrier symbols when the multiple multi-carrier symbols are arranged continuously in time.

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