A method and apparatus in a node used for wireless communication power control

Abstract

The application discloses a method and device used in a node for wireless communication power control. A first node receives a first reference signal, generates a first path loss for the reception of the first reference signal; transmits a first signal; whether a transmission power value of the first signal depends on a smaller one of a first candidate power value and a second candidate power value depends on a waveform of the first signal; when the waveform of the first signal is a first waveform, the transmission power value of the first signal depends on the smaller one of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on a second path loss; at least a former one of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission other than Sidelink. The application introduces a power control mechanism of a sensing signal while being compatible with a power control scheme of a current standard, saves energy, and improves sensing accuracy.

Description

A method and apparatus in a node for wireless communication power control

[0001] This application claims priority to a Chinese patent application filed with the Patent Office of China on February 28, 2024, with application number 202410219956.4 and invention name “A method and device in a node used for wireless communication power control”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a signal transmission method and apparatus in a wireless communication system, and in particular to a power control method and apparatus. Background Art

[0003] With the development of mobile communications, especially the application of 5G active antenna arrays, the architectures of communication and perception systems are converging, and the trend toward integrated communication and perception capabilities within networks is becoming increasingly evident. Integrated communication and perception technology, also known as Integrated Sensing and Communication (ISAC), achieves unified design of communication and perception functions through joint air interface and protocol design, time-frequency and space resource reuse, and hardware device sharing. This enables wireless networks to deliver high-quality communication while simultaneously achieving high-precision and refined perception, thereby improving the system's spectral, energy, and hardware efficiency, achieving integration gain. Furthermore, through mutual assistance and collaboration between communication and perception functions, the performance of each can be enhanced, resulting in coordination gain.

[0004] In the 5G Rel-18 (Release-18) phase, 3GPP (the 3rd Generation Partnership Project) SA1 (Services & Systems Aspects 1) has carried out extensive and comprehensive research on ISAC scenario use cases. In June 2023, the 3GPP SA#100 plenary meeting adopted the Feasibility Study on Integrated Sensing and Communication Technical Report (TR) 22.837 (Rel-19), which describes 32 use cases in three scenarios supported by ISAC: object detection and tracking, environment monitoring, and motion monitoring. In December 2023, the 3GPP RAN (Radio Access Network) #102 plenary meeting adopted the SI (Study on channel modelling for Integrated Sensing and Communication (ISAC) for NR). In the Rel-19 phase, the RAN1 working group will also aim to support object detection and tracking scenarios, using the channel model in 38.901 as a starting point to lead research on ISAC channel modeling. ISAC is also considered a key potential technology development direction and one of the six main application scenarios in the 6G phase. Summary of the Invention

[0005] In wireless communication systems, power control is a crucial way to optimize system performance. Reasonable power control can reduce interference, improve spectrum efficiency, reduce energy consumption, extend device battery life and service life, and adapt to different transmission conditions and mobility requirements. However, after the introduction of perception signals in wireless communication systems, there are also problems such as the interference of perception on the communication system, the spectrum interference between perception and communication systems, and the optimization of perception performance. Therefore, it is a worthwhile issue to improve perception performance while managing the interference that may be introduced during the perception process by introducing power control of perception signals.

[0006] In response to the above problems, the present application discloses a solution. It should be noted that, in the description of the above problem, the NR (New Radio) system is used as an example. The present application is also applicable to scenarios such as the future 6G system, achieving technical effects similar to the NR system. Furthermore, although the original intention of the present application is for the ISAC scenario, the present application can also be applied to other non-ISAC scenarios. Furthermore, adopting a unified design solution for different scenarios (such as other non-ISAC scenarios, including but not limited to RIS (Reconfigurable Intelligent Surface), Vehicle to Everything (V2X), NCR (Network Control Repeater) capacity enhancement system, short-range communication system, NTN (Non Terrestrial Network), IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) network, etc.) can also help reduce hardware complexity and cost. In the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments of the present application and the features in the embodiments may be combined with each other in any manner.

[0007] In particular, for the interpretation of terminology, nouns, functions, and variables in this application (unless otherwise specified), reference may be made to the definitions in the TS38 series and TS37 series of the technical specifications (TS) of the 3GPP (the 3rd Generation Partnership Project). If necessary, reference may be made to TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, and TS38.423 in the 3GPP technical standards to assist in understanding this application.

[0008] As an example, the interpretation of the terms in this application refers to the definitions of the 3GPP specification protocol TS38 series.

[0009] As an example, the interpretation of the terms in this application refers to the definitions of the TS37 series of specification protocols of 3GPP.

[0010] As an example, the interpretation of the terms in this application refers to the definitions of the TS40 series of specification protocols of 3GPP.

[0011] As an example, the interpretation of the terms in this application refers to the definitions in the TS39 series of specification protocols of 3GPP.

[0012] As an embodiment, the interpretation of the terms in this application refers to the definitions in the Rel-17 version of the 3GPP specification protocol.

[0013] As an example, the interpretation of the terms in this application refers to the definitions in the Rel-18 version of the 3GPP specification protocol.

[0014] As an example, the interpretation of the terms in this application refers to the definitions in the Rel-19 version of the 3GPP specification protocol.

[0015] As an example, the interpretation of the terms in this application refers to the definitions in the Rel-20 version of the 3GPP specification protocol.

[0016] The present application discloses a method in a first node for wireless communication power control, which includes:

[0017] receiving a first reference signal, and generating a first path loss based on reception of the first reference signal;

[0018] sending a first signal;

[0019] Whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

[0020] As an embodiment, the problem to be solved by the present application includes: how to determine the transmission power value of the first signal.

[0021] As an embodiment, the problem to be solved by the present application includes: power control in an ISAC scenario.

[0022] As an embodiment, the problem to be solved by the present application includes: when the terminal sends a signal other than the Sidelink, that is, the first signal, how to determine the power control parameters on which the signal depends.

[0023] As an embodiment, the characteristics of the above method include: in this application, the terminal can determine whether the first signal is a perception signal based on the perception waveform based on the waveform of the first signal, and then determine the power control parameters on which the first signal depends, thereby solving the above problem.

[0024] As an embodiment, the benefits of the above method include: in the present application, when the first signal is a first waveform, that is, in the ISAC scenario, the terminal will rely on the smaller of the first candidate power value and the second candidate power value for the transmission power of the perception signal based on the perception waveform, thereby solving the above problem.

[0025] As an embodiment, the characteristics of the above method include: the candidates for the first waveform include a waveform for radar, a waveform for perception, and an integrated waveform of ISAC.

[0026] As an embodiment, the characteristics of the above method include: the first waveform is a waveform introduced in 5G-Advance and later systems.

[0027] As an embodiment, the characteristics of the above method include: the first signal is one of an uplink cellular signal or a perception signal.

[0028] As an embodiment, the characteristics of the above method include: the receiver of the first signal includes at least one of the first node and the second node in the present application.

[0029] As an embodiment, the benefits of the above method include: this application supports ISAC technology, and the wireless network can achieve high-precision and refined perception functions while performing high-quality communication interactions, thereby improving the system's spectrum efficiency, energy efficiency and hardware efficiency, and thereby obtaining integration gain and collaborative gain.

[0030] As an embodiment, the above method has the following advantages: while being compatible with the current standard power control scheme, it introduces ISAC-based power control of the sensing signal to improve the accuracy of sensing.

[0031] As an embodiment, the benefits of the above method include: by selecting a smaller transmission power for the perception signal, communication resources can be effectively saved, power usage can be reduced as much as possible, and resource utilization efficiency can be improved.

[0032] As an embodiment, the benefits of the above method include: reducing the perceived interference to other devices or systems, lowering the interference level, and improving the reliability and performance of communications.

[0033] According to one aspect of the present application, the above method is characterized in that the second candidate power value is linearly correlated with the third power value; the third power value depends on the first waveform, or the second path loss depends on the first waveform, or the third power value and the second path loss both depend on the first waveform.

[0034] As an embodiment, the problem to be solved by the present application includes: how to determine the second candidate power value.

[0035] As an embodiment, the characteristics of the above method include: in this application, the second candidate power value depends on the first waveform; further, the second candidate power value depends on the second path loss, and the second candidate power value is linearly correlated with the third power value, and at least one of the second path loss and the third power value depends on the first waveform, thereby solving the above problem.

[0036] As an embodiment, the characteristics of the above method include: the second candidate power value depends on the type of the first waveform.

[0037] As an embodiment, the characteristics of the above method include: the second candidate power value depends on the priority of the perception waveform.

[0038] As an embodiment, the characteristics of the above method include: the second candidate power value depends on the requirements corresponding to the sensing waveform.

[0039] As an embodiment, the characteristics of the above method include: the candidate for the third power value is configured by higher layer signaling.

[0040] As an embodiment, the benefits of the above method include: supporting multiple different sensing waveforms and more comprehensive perception of the environment.

[0041] As an embodiment, the benefits of the above method include: having good waveform adaptation characteristics, better adapting and optimizing the perception process, and maximizing the advantages of each perception waveform.

[0042] As an embodiment, the benefits of the above method include: different scenarios may require different perception capabilities, and by flexibly selecting waveform types and then flexibly adjusting transmission power, the system can better adapt to different working environments and task requirements.

[0043] As an embodiment, the benefits of the above method include: improving the robustness of the system with different sensing waveforms to interference in the environment and enhancing the stability of the system.

[0044] According to one aspect of the present application, the above method is characterized in that it includes:

[0045] receiving a first signaling;

[0046] The second path loss depends on the first signaling.

[0047] As an embodiment, the characteristics of the above method include: the first signaling is RRC signaling, and the first signaling configures the second path loss.

[0048] As an embodiment, the characteristics of the above method include: the first signaling is RRC signaling, and the first signaling configures multiple candidates for the second path loss.

[0049] As an embodiment, the characteristics of the above method include: the first signaling is RRC signaling, the first signaling is configured with multiple offset values, and the second path loss depends on the multiple offset values.

[0050] As an embodiment, the characteristics of the above method include: the first signaling is dynamic signaling, and the first signaling indicates the second path loss from multiple candidates of the second path loss configured in higher-layer signaling.

[0051] As an embodiment, the characteristics of the above method include: the first signaling provides a reference for the path loss when the first node cannot determine the path loss on which the first signal depends by measuring a reference signal.

[0052] As an embodiment, the benefits of the above method include: even when the path loss cannot be obtained based on measurement, it can still quickly respond to changes in channel conditions and changes in user needs, ensuring normal transmission of the first signal and reducing signal interruption.

[0053] As an embodiment, the benefits of the above method include: being able to select applicable path loss values ​​according to different environments, thereby more accurately determining the transmission power value of the first signal, so that the system can better adapt to different environmental conditions and business scenarios.

[0054] As an embodiment, the benefits of the above method include: saving terminal power and improving terminal battery life.

[0055] According to one aspect of the present application, the above method is characterized in that the waveform of the first signal is a first waveform; the transmission power value of the first signal is the minimum value of the first maximum power value, the second maximum power value and the target candidate power value; the target candidate power value is the smaller of the first candidate power value and the second candidate power value; the first maximum power value depends on the configured maximum output power, and the second maximum power value depends on the configuration for the transmission of the first signal.

[0056] As an embodiment, the problem to be solved by the present application includes: when the waveform of the first signal is the first waveform, the transmission power value of the first signal.

[0057] As an embodiment, the problem to be solved by the present application includes: signal transmission power used for sensing in an ISAC scenario.

[0058] As an embodiment, the characteristics of the above method include: in this application, the transmission power value of the first signal is the smallest of the first maximum power value, the second maximum power value, the first candidate power value and the second candidate power value, thereby solving the above problem.

[0059] As an embodiment, the characteristics of the above method include: the first maximum power value is the maximum output power value configured by the terminal for a given serving cell of a given carrier.

[0060] As an embodiment, the characteristics of the above method include: the second maximum power value is the maximum transmission power value configured by the first node for sensing signals.

[0061] As an embodiment, the benefits of the above method include: taking into account the maximum output power of the terminal and ensuring normal operation of the system.

[0062] As an embodiment, the benefits of the above method include: good compatibility.

[0063] As an embodiment, the benefits of the above method include: introducing a maximum transmit power value for sensing a signal, saving energy, reducing interference, and further improving the accuracy of terminal power control.

[0064] According to one aspect of the present application, the above method is characterized in that it includes:

[0065] receiving a second reference signal;

[0066] The second reference signal is for the downlink transmission, and the second reference signal and the first signal are QCL; and the second path loss is generated for reception of the second reference signal.

[0067] As an embodiment, the problem to be solved by this application includes: how to obtain the second path loss.

[0068] As an embodiment, the characteristics of the above method include: In this application, the terminal can obtain the second path loss by receiving and measuring the reference signal sent by the base station, thereby solving the above problem.

[0069] As an embodiment, the characteristics of the above method include: the second reference signal is different from the first reference signal.

[0070] As an embodiment, the characteristics of the above method include: the first node transmits the first signal in a beamforming manner.

[0071] As an embodiment, the benefits of the above method include: selecting a suitable reference signal based on the spatial relationship of the sensed signals can improve the accuracy of path loss, thereby improving the accuracy of power control.

[0072] As an embodiment, the benefits of the above method include: introducing spatial characteristics into perception, which is conducive to improving perception accuracy.

[0073] As an embodiment, the above method has the following benefits: determining the path loss on which the transmission signal depends based on the QCL reference signal has good compatibility.

[0074] According to one aspect of the present application, the above method is characterized in that it includes:

[0075] receiving a second signal;

[0076] The second path loss is generated for reception of the second signal; the second signal is for transmission other than the downlink transmission.

[0077] As an embodiment, the problem to be solved by this application includes: how to obtain the second path loss.

[0078] As an embodiment, the characteristics of the above method include: In the present application, the terminal obtains the second path loss by sending a perception signal and measuring the echo of the perception signal, thereby solving the above problem.

[0079] As an embodiment, the characteristics of the above method include: senders of the second signal and the first reference signal are co-located.

[0080] As an embodiment, the characteristics of the above method include: senders of the second signal and the first reference signal are not co-located.

[0081] As an embodiment, the characteristics of the above method include: the sender of the second signal is the first node.

[0082] As an embodiment, the characteristics of the above method include: the sender of the second signal is the second node in this application.

[0083] As an embodiment, the above method has the following benefits: in particular, the sensing system for the transmitting and receiving units can obtain more accurate path loss, thereby more accurately controlling the transmission power of the first signal.

[0084] As an embodiment, the benefits of the above method include: transmission of different links relying on different reference signals is conducive to the introduction of new technologies and promotes network expansion.

[0085] According to one aspect of the present application, the above method is characterized in that it includes:

[0086] Sending a first information block;

[0087] The first information block indicates that the first node supports the sending of the first signal.

[0088] As an embodiment, the characteristics of the above method include: the first information block indicates the capability of the first node.

[0089] As an embodiment, the characteristics of the above method include: the first signal block indicates that the first node supports ISAC.

[0090] As an embodiment, the above method has the following advantages: good compatibility; the terminal reporting its own capabilities to the base station can help the base station understand the latest technologies and features supported by the terminal.

[0091] As an embodiment, the above method has the following benefits: the capabilities directly supported by the terminal facilitate the base station to dynamically adjust the allocation of network resources according to the capabilities of the terminal to meet the needs of different terminals.

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

[0093] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0094] The present application discloses a method in a second node for wireless communication power control, which includes:

[0095] sending a first reference signal, where a receiver of the first reference signal includes a first node, and the first node generates a first path loss in response to receiving the first reference signal;

[0096] The first node sends a first signal; whether the transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

[0097] According to one aspect of the present application, the above method is characterized in that the second candidate power value is linearly correlated with the third power value; the third power value depends on the first waveform, or the second path loss depends on the first waveform, or the third power value and the second path loss both depend on the first waveform.

[0098] According to one aspect of the present application, the above method is characterized in that it includes:

[0099] Sending a first signaling;

[0100] The second path loss depends on the first signaling.

[0101] According to one aspect of the present application, the above method is characterized in that the waveform of the first signal is a first waveform; the transmission power value of the first signal is the minimum value of the first maximum power value, the second maximum power value and the target candidate power value; the target candidate power value is the smaller of the first candidate power value and the second candidate power value; the first maximum power value depends on the configured maximum output power, and the second maximum power value depends on the configuration for the transmission of the first signal.

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

[0103] sending a second reference signal;

[0104] The second reference signal is for the downlink transmission, and the second reference signal and the first signal are QCL; and the second path loss is generated for reception of the second reference signal.

[0105] According to one aspect of the present application, the above method is characterized in that the first node receives a second signal; the first node generates the second path loss in response to the reception of the second signal; and the second signal is for transmission other than the downlink transmission.

[0106] According to one aspect of the present application, the above method is characterized in that it includes:

[0107] receiving a first information block;

[0108] The first information block indicates that the first node supports the sending of the first signal.

[0109] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0110] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0111] The present application discloses a first node device used for wireless communication power control, comprising:

[0112] a first receiver, receiving a first reference signal, and generating a first path loss based on reception of the first reference signal;

[0113] A first transmitter sends a first signal;

[0114] Whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

[0115] The present application discloses a device for a second node used for wireless communication power control, comprising:

[0116] A second transmitter sends a first reference signal and generates a first path loss based on reception of the first reference signal;

[0117] The first node sends a first signal; whether the transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

[0118] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0119] This application supports ISAC technology. While wireless networks are performing high-quality communication interactions, they can achieve high-precision and refined perception functions, thereby improving the system's spectrum efficiency, energy efficiency, and hardware efficiency, thereby achieving integration gain and collaborative gain.

[0120] While being compatible with current standard power control schemes, it also introduces ISAC-based power control of sensing signals to improve sensing accuracy.

[0121] By selecting a smaller transmit power for the sensing signal, communication resources can be effectively saved, power usage can be minimized as much as possible, and resource utilization efficiency can be improved;

[0122] It has good waveform adaptation characteristics, better adapting and optimizing the perception process to maximize the advantages of each perception waveform. BRIEF DESCRIPTION OF THE DRAWINGS

[0123] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0124] FIG1 shows a flow chart of first node transmission according to an embodiment of the present application;

[0125] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0126] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0127] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0128] FIG5 shows a first flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0129] FIG6 shows a second flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0130] FIG7 shows a third flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0131] FIG8 shows a schematic diagram of a second candidate power value according to an embodiment of the present application;

[0132] FIG9 is a schematic diagram showing a transmission power value of a first signal according to an embodiment of the present application;

[0133] FIG10 is a schematic diagram showing three typical transmission situations of a first signal, a first reference signal, a second reference signal, and a second signal according to an embodiment of the present application;

[0134] FIG11 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0135] FIG12 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0136] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0137] Example 1

[0138] Example 1 illustrates a flowchart of a first node transmission according to an embodiment of the present application, as shown in FIG1 . In FIG1 , each box represents a step. In particular, the order of the steps in the boxes does not represent a specific temporal relationship between the steps.

[0139] In step 101 , the first node receives a first reference signal and generates a first path loss based on the reception of the first reference signal; and in step 102 , sends a first signal.

[0140] In embodiment 1, whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

[0141] As an embodiment, the first node is the first node in this application.

[0142] As an embodiment, the first node receives the first reference signal.

[0143] As an embodiment, the first reference signal is a downlink reference signal.

[0144] As an embodiment, the first reference signal is a reference signal used for downlink path loss estimation.

[0145] As an embodiment, the first reference signal occupies one reference signal resource.

[0146] As an embodiment, the first reference signal corresponds to a reference signal resource identifier.

[0147] As an embodiment, the first reference signal corresponds to a path loss reference signal resource identifier.

[0148] As an embodiment, the identifier in this application refers to: Id.

[0149] As an embodiment, the identifier in this application refers to: index.

[0150] As an embodiment, the identifier described in this application refers to: identity.

[0151] As an embodiment, the identifier in this application refers to: identifier.

[0152] As an embodiment, the identification described in this application refers to: identification.

[0153] As an embodiment, the first reference signal includes one of a CSI-RS (Channel State Information-Reference signal) and an SSB.

[0154] As an embodiment, the first reference signal is one of CSI-RS and SSB.

[0155] As an embodiment, the first reference signal includes CSI-RS.

[0156] As an embodiment, the first reference signal is CSI-RS.

[0157] As an embodiment, the first reference signal occupies one CSI-RS resource.

[0158] As an embodiment, the first reference signal occupies an NZP CSI-RS (Non-Zero-Power CSI-RS, non-zero power channel state information reference signal) resource.

[0159] As an embodiment, the first reference signal corresponds to an NZP-CSI-RS-ResourceId.

[0160] As an embodiment, the first reference signal includes SSB.

[0161] As an embodiment, the first reference signal is SSB.

[0162] As an embodiment, the first reference signal corresponds to an SSB-Index.

[0163] As an embodiment, the first reference signal corresponds to an ssb-Index.

[0164] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block.

[0165] As an embodiment, the SSB described in this application refers to: SS (Synchronization Signal) / PBCH (Physical Broadcast Channel) block, synchronization signal / physical broadcast channel block.

[0166] Typically, the PBCH, PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are received in consecutive symbols and form an SS / PBCH block.

[0167] As an embodiment, the first node generates the first path loss (PathLoss, PL) for reception of the first reference.

[0168] As an embodiment, the first path loss is downstream.

[0169] As an embodiment, the unit of the first path loss is dB (deciBel, decibel).

[0170] As an embodiment, the first node measures the first reference signal to obtain the first path loss.

[0171] As an embodiment, the first node obtains the first path loss through estimation.

[0172] As an embodiment, the first node determines the first path loss by determining RSRP (Reference Signal Received Power) of the first reference signal.

[0173] As an embodiment, the first node obtains the first path loss by subtracting the received power of the first reference signal from the transmitted power of the first reference signal.

[0174] As an embodiment, the first node obtains the first path loss by subtracting the RSRP of the first reference signal from the transmit power of the first reference signal.

[0175] As an embodiment, the transmission power of the first reference signal in the present application is the linear average of the power contributions of all REs (Resource Elements) carrying the reference signal within the operating system bandwidth.

[0176] As an embodiment, the transmit power of a reference signal in the present application is a linear average of the power contributions of the REs that carry the configured reference signal within the working system bandwidth.

[0177] As an embodiment, the transmission power of the first reference signal described in the present application is configured by higher layer signaling.

[0178] As an embodiment, the transmit power of the first reference signal in the present application is configured by RRC (Radio Resource Control) signaling.

[0179] As an embodiment, the transmit power of a reference signal described in the present application is indicated by higher layer signaling.

[0180] As an embodiment, the transmission power of a reference signal described in the present application is indicated by RRC signaling.

[0181] As an embodiment, the RSRP of a reference signal in the present application is the RSRP filtered by a higher layer.

[0182] As an embodiment, the RSRP of a reference signal described in the present application includes RSRP filtered by Layer 3 (Layer 3, L3).

[0183] As an embodiment, the RSRP of a reference signal described in the present application includes L3-RSRP.

[0184] As an embodiment, the first node determines the first path loss by receiving the first reference signal.

[0185] As an embodiment, the first node sends the first signal.

[0186] As an embodiment, the first signal is a baseband signal.

[0187] As an embodiment, the first signal is a radio frequency signal.

[0188] As an embodiment, the first signal is a wireless signal.

[0189] As an embodiment, the first signal is a reference signal (RS).

[0190] As an embodiment, the first signal is a perception signal.

[0191] As an embodiment, the first signal is a radar signal.

[0192] As an embodiment, the first signal is used for cellular transmission.

[0193] As an embodiment, the first signal is used for uplink transmission.

[0194] As an embodiment, the first signal carries user information.

[0195] As an embodiment, the first signal includes UCI (Uplink Control Information, uplink control information).

[0196] As an embodiment, the first signal includes HARQ (Hybrid Automatic Repeat reQuest)-ACK (ACKnowledgement).

[0197] As an embodiment, the first signal carries a bit block, and the bit block includes at least one TB (Transport Block) or at least one CBG (Code Block Group).

[0198] As an embodiment, the first signal does not carry user information.

[0199] As an embodiment, the first signal is used for sensing.

[0200] As an embodiment, the first signal is used for at least one of distance measurement, speed measurement, and angle measurement.

[0201] As an embodiment, the first signal is used for object detection and tracking.

[0202] As an embodiment, the first signal is used for detecting.

[0203] As a sub-embodiment of this embodiment, the detecting includes sensing.

[0204] As a sub-embodiment of this embodiment, the detecting includes tracking.

[0205] As a sub-embodiment of this embodiment, the detecting includes positioning.

[0206] As an embodiment, the first signal is an ISAC (Integrated Sensing And Communication) perception signal.

[0207] As an embodiment, the first signal is ISAC-RS.

[0208] As an embodiment, the first signal is an IRS (ISAC Reference Signal).

[0209] As an embodiment, the first signal is an SRS (Sounding Reference Signal).

[0210] As an embodiment, the first signal is a perception-specific SRS; the above method multiplexes the SRS to reduce the complexity of standardization.

[0211] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the waveform of the first signal.

[0212] As an embodiment, the unit of the transmission power value of the first signal is dBm (deciBel relative to one milliwatt).

[0213] As an embodiment, the unit of the transmission power value of the first signal is mW (milliWatt).

[0214] As an embodiment, the unit of the transmission power value of the first signal is W (Watt, watt).

[0215] As an embodiment, the unit of the first candidate power value is dBm.

[0216] As an embodiment, the unit of the first candidate power value is mW.

[0217] As an embodiment, the unit of the first candidate power value is W.

[0218] As an embodiment, the unit of the second candidate power value is dBm.

[0219] As an embodiment, the unit of the second candidate power value is milliwatt.

[0220] As an embodiment, the unit of the second candidate power value is watt.

[0221] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the type of the waveform of the first signal.

[0222] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is a waveform for perception.

[0223] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is a waveform used only for perception.

[0224] As an embodiment, whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is an integrated waveform for ISAC.

[0225] As an embodiment, when the waveform of the first signal is the first waveform, the transmission power value of the first signal depends on the smaller one of the first candidate power value and the second candidate power value.

[0226] As an embodiment, the first waveform is one of a plurality of candidate waveforms.

[0227] As a sub-embodiment of this embodiment, the plurality of candidate waveforms are used for sensing.

[0228] As a sub-embodiment of this embodiment, the plurality of candidate waveforms are used for detection.

[0229] As a sub-embodiment of this embodiment, the plurality of candidate waveforms are used for tracking.

[0230] As a sub-embodiment of this embodiment, the plurality of candidate waveforms are used for positioning.

[0231] As a sub-embodiment of this embodiment, the multiple candidate waveforms are used for perceptual signal transmission in ISAC.

[0232] As a sub-embodiment of this embodiment, the multiple candidate waveforms include at least one of an FMCW (Frequency Modulated Continuous Wave) waveform, an LFMCW (Linear Frequency Modulation Continuous Wave) waveform, an SFMCW (Step-FMCW) waveform, a TFMCW (Trapezoidal-FMCW) waveform, a PRO-FMCW (Pseudo-Random Optimized FMCW) waveform, an FMICW (Frequency Modulated Intermittent Continuous Wave) waveform, a PMCW (Phase Modulated Continuous Wave) waveform, a Chirp waveform, a PDR (Pulse Doppler Radar) waveform, an MFSK (Multiple Frequency Shift Keying) waveform, and a fast Chirp ramp sequence waveform.

[0233] As an embodiment, the first waveform is a pulse waveform.

[0234] As an embodiment, the first waveform is a continuous waveform.

[0235] As an embodiment, the first waveform is an FMCW waveform.

[0236] As an embodiment, the first waveform is a LFMCW waveform.

[0237] As an embodiment, the first waveform is a SFMCW waveform.

[0238] As an embodiment, the first waveform is a TFMCW waveform.

[0239] As an embodiment, the first waveform is a PRO-FMCW waveform.

[0240] As an embodiment, the first waveform is a FMICW waveform.

[0241] As an embodiment, the first waveform is a PMCW waveform.

[0242] As an embodiment, the first waveform is a Chirp waveform.

[0243] As an embodiment, the first waveform is a PDR waveform.

[0244] As an embodiment, the first waveform is an MFSK waveform.

[0245] As an embodiment, the first waveform is a fast Chirp ramp sequence waveform.

[0246] As an embodiment, the first waveform is a waveform introduced in 5G-Advance (5G-Evolved) and later systems.

[0247] As an embodiment, the first waveform is a waveform introduced in 6G and later systems.

[0248] As an embodiment, when the waveform of the first signal is the first waveform, the first signal is used for sensing.

[0249] As a sub-embodiment of this embodiment, the first signal includes a reference signal for positioning.

[0250] As a sub-embodiment of this embodiment, the first signal occupies resources reserved for sensing transmission.

[0251] As a sub-embodiment of this embodiment, the first signal occupies reference signal resources.

[0252] As a sub-embodiment of this embodiment, the first signal occupies a sensing occasion (SO).

[0253] As an embodiment, one sensing opportunity described in this application occupies continuous time domain resources and continuous frequency domain resources.

[0254] As an embodiment, one sensing opportunity described in the present application occupies continuous time domain resources and discontinuous frequency domain resources.

[0255] As an embodiment, one sensing opportunity described in this application occupies (y / x) symbols.

[0256] As a sub-embodiment of this embodiment, x is an integer greater than 1; and y is an integer not less than 1.

[0257] As a sub-embodiment of this embodiment, y is equal to 1.

[0258] As a sub-embodiment of this embodiment, y is greater than 1.

[0259] As an embodiment, when the waveform of the first signal is the second waveform, the first signal is not used for sensing.

[0260] As a sub-embodiment of this embodiment, the physical layer channel occupied by the first signal includes a PUSCH (Physical Uplink Shared CHannel).

[0261] As a sub-embodiment of this embodiment, the physical layer channel occupied by the first signal includes PUCCH (Physical Uplink Control CHannel, physical uplink control channel).

[0262] As a sub-embodiment of this embodiment, the resources occupied by the first signal include SRS resources.

[0263] As a sub-embodiment of this embodiment, the first signal includes an SRS.

[0264] As an embodiment, when the waveform of the first signal is the second waveform in the present application, the first signal is used for perception.

[0265] As a sub-embodiment of this embodiment, the resources occupied by the first signal include SRS resources.

[0266] As a sub-embodiment of this embodiment, the resources occupied by the first signal include perception-specific SRS resources.

[0267] As a sub-embodiment of this embodiment, the first signal includes a perception-specific SRS; the above method multiplexes the SRS to reduce the complexity of standardization.

[0268] As an embodiment, the second waveform in the present application is one of multiple candidate waveforms.

[0269] As a sub-embodiment of this embodiment, the multiple candidate waveforms are used for uplink transmission.

[0270] As a sub-embodiment of this embodiment, the plurality of candidate waveforms are used for communication signal transmission in an ISAC.

[0271] As a sub-embodiment of this embodiment, the multiple candidate waveforms are at least one of OFDM (Orthogonal Frequency Division Multiplexing) waveform, CP-OFDM (Cyclic Prefix-Orthogonal Frequency Division Multiplexing) waveform, FBMC (Filter Bank Multi Carrier) waveform, UFMC (Universal Filtered Multi Carrier) waveform, F-OFDM (Filtered-OFDM) waveform, and DFT-s-OFDM (Discrete Fourier Transform-spread-OFDM) waveform.

[0272] As an embodiment, any waveform among the candidates for the second waveform in the present application is different from any waveform among the candidates for the first waveform in the present application.

[0273] As an embodiment, the second waveform in the present application is an OFDM waveform.

[0274] As an embodiment, the second waveform in the present application is a CP-OFDM waveform.

[0275] As an embodiment, the second waveform in the present application is a FBMC waveform.

[0276] As an embodiment, the second waveform in the present application is a UFMC waveform.

[0277] As an embodiment, the second waveform in the present application is a F-OFDM waveform.

[0278] As an embodiment, the second waveform in the present application is a DFT-s-OFDM waveform.

[0279] As an embodiment, the second waveform in this application is a waveform used in systems of Rel-18 (Release-18) and earlier.

[0280] As an embodiment, when the waveform of the first signal is the second waveform in the present application, the transmission power value of the first signal does not depend on the smaller one of the first candidate power value and the second candidate power value.

[0281] As an embodiment, when the waveform of the first signal is the second waveform in the present application, the transmission power value of the first signal is independent of at least one of the first candidate power value and the second candidate power value.

[0282] As an embodiment, when the waveform of the first signal is the second waveform in the present application, the transmission power value of the first signal is independent of the second candidate power value.

[0283] As an embodiment, when the waveform of the first signal is the second waveform in the present application, regardless of which of the first candidate power value and the second candidate power value is smaller, the transmission power value of the first signal is independent of the second candidate power value.

[0284] As an embodiment, when the waveform of the first signal is the second waveform in the present application, the transmission power value of the first signal depends on only the first candidate power value among the first candidate power value and the second candidate power value.

[0285] As an embodiment, when the waveform of the first signal is the second waveform in the present application, regardless of which of the first candidate power value and the second candidate power value is smaller, the transmission power value of the first signal depends on only the first candidate power value of the first candidate power value and the second candidate power value.

[0286] As a sub-embodiment of the above two embodiments, the first signal is used for sensing.

[0287] As a sub-embodiment of the above two embodiments, the first signal includes a detection signal.

[0288] As a sub-embodiment of the above two embodiments, the first signal includes an SRS.

[0289] As a sub-embodiment of the above two embodiments, the first signal includes a perception-specific SRS.

[0290] As a sub-embodiment of the above two embodiments, the transmission power value of the first signal is equal to the first candidate power value.

[0291] As a subsidiary embodiment of this sub-embodiment, the first candidate power value is equal to the sum of the product of the first path loss and the first coefficient and the first target power value.

[0292] As a subsidiary embodiment of this sub-embodiment, the first candidate power value is equal to the sum of the product of the first path loss and the first coefficient, the first target power value, and the sum of the first offset value.

[0293] As a sub-embodiment of the above two embodiments, the transmit power value of the first signal depends on the first candidate power value and the first offset value.

[0294] As a subsidiary embodiment of this sub-embodiment, the first candidate power value is equal to the sum of the product of the first path loss and the first coefficient and the first target power value.

[0295] As a subsidiary embodiment of this sub-embodiment, the transmission power value of the first signal is equal to the sum of the first candidate power value and the first offset value.

[0296] As an embodiment, in the present application, the unit of the first offset value is dB, or the unit of the first offset value is mW, or the unit of the first offset value is W.

[0297] As an embodiment, the first offset value described in this application is a non-zero real number.

[0298] As an embodiment, the first offset value described in the present application is predefined, or the first offset value is preconfigured, or the first offset value is configured by higher-layer signaling.

[0299] As an embodiment, when the waveform of the first signal is the second waveform in the present application, the transmission power value of the first signal is independent of the first candidate power value and the second candidate power value, and the transmission power value of the first signal depends on the third candidate power value, and the third candidate power value depends on the first path loss.

[0300] As a sub-embodiment of this embodiment, the first signal is not used for perception.

[0301] As a sub-embodiment of this embodiment, the third candidate power value is determined according to the method for determining the transmission power value when the first signal is used as a cellular signal; the above method is compatible with the existing power control mechanism and reduces the complexity of standardization.

[0302] As a subsidiary embodiment of this sub-embodiment, the cellular signal includes a PUSCH.

[0303] As a subsidiary embodiment of this sub-embodiment, the cellular signal includes PUCCH.

[0304] As a subsidiary embodiment of this sub-embodiment, the cellular signal includes SRS.

[0305] As a subsidiary embodiment of this sub-embodiment, the cellular signal includes an SRS, and the SRS is not used for sensing.

[0306] As an embodiment, the first candidate power value depends on the first path loss.

[0307] As an embodiment, the first candidate power value being dependent on the first path loss means that the first candidate power value increases as the first path loss increases, and decreases as the first path loss decreases.

[0308] As an embodiment, the meaning that the first candidate power value depends on the first path loss includes: the first candidate power value is linearly correlated with the first path loss.

[0309] As an embodiment, the first candidate power value being dependent on the first path loss means that the first candidate power value increases as the product of the first path loss and the first coefficient increases, and decreases as the product of the first path loss and the first coefficient decreases.

[0310] As an embodiment, the meaning that the first candidate power value is dependent on the first path loss includes: the first candidate power value is linearly correlated with the product of the first path loss and a first coefficient.

[0311] As an embodiment, the meaning that the first candidate power value depends on the first path loss includes: the first candidate power value is equal to the sum of the product of the first path loss and the first coefficient and the first target power value.

[0312] As an embodiment, the first target power value in the present application includes at least one power value.

[0313] As a sub-embodiment of this embodiment, the at least one power value is fixed.

[0314] As a sub-embodiment of this embodiment, the at least one power value is configured through RRC signaling.

[0315] As an embodiment, the first target power value in the present application includes two power values.

[0316] As an embodiment, the first target power value in the present application includes a power value configured by high-layer signaling.

[0317] As an embodiment, the first target power value in the present application includes a power offset value.

[0318] As an embodiment, in the present application, the first target power value is related to the number of RBs (Resource Blocks) occupied by the first signal.

[0319] As an embodiment, the first target power value in the present application is related to the number of RBs occupied by the physical layer channel referenced by the first signal.

[0320] As a sub-embodiment of this embodiment, the physical layer channel referenced by the first signal includes PUSCH.

[0321] As a sub-embodiment of this embodiment, the physical layer channel referenced by the first signal includes SRS.

[0322] As a sub-embodiment of this embodiment, the number of RBs occupied by the physical layer channel referenced by the first signal is fixed.

[0323] As a sub-embodiment of this embodiment, the number of RBs occupied by the physical layer channel referenced by the first signal is configured through RRC signaling.

[0324] As an embodiment, the first coefficient in this application is a number between 0 and 1.

[0325] As an embodiment, the first coefficient in this application is fixed.

[0326] As an embodiment, the first coefficient in the present application is configured through RRC signaling.

[0327] As an embodiment, the second candidate power value depends on the second path loss.

[0328] As an embodiment, the unit of the second path loss is dB.

[0329] As an embodiment, the first node obtains the second path loss through estimation.

[0330] As an embodiment, the second candidate power value being dependent on the second path loss means that the second candidate power value increases as the second path loss increases, and decreases as the second path loss decreases.

[0331] As an embodiment, the second candidate power value being dependent on the second path loss means that the second candidate power value is linearly correlated with the second path loss.

[0332] As an embodiment, the second candidate power value being dependent on the second path loss means that the second candidate power value increases as the product of the second path loss and the second coefficient increases, and decreases as the product of the second path loss and the second coefficient decreases.

[0333] As an embodiment, the second candidate power value being dependent on the second path loss means that the second candidate power value is linearly correlated with the product of the second path loss and a second coefficient.

[0334] As an embodiment, the second candidate power value being dependent on the second path loss means that the second candidate power value is equal to the sum of the product of the second path loss and the second coefficient and the second target power value.

[0335] As an embodiment, the second target power value in the present application includes at least one power value.

[0336] As a sub-embodiment of this embodiment, the at least one power value is fixed.

[0337] As a sub-embodiment of this embodiment, the at least one power value is configured through RRC signaling.

[0338] As an embodiment, the second target power value in the present application includes two power values.

[0339] As an embodiment, the second target power value in the present application includes a power value configured by high-layer signaling.

[0340] As an embodiment, the second target power value in the present application is related to the number of RBs occupied by the first signal.

[0341] As an embodiment, the second target power value in the present application is related to the number of RBs occupied by the physical layer channel referenced by the first signal.

[0342] As a sub-embodiment of this embodiment, the physical layer channel referenced by the first signal includes PUSCH.

[0343] As a sub-embodiment of this embodiment, the physical layer channel referenced by the first signal includes SRS.

[0344] As a sub-embodiment of this embodiment, the number of RBs occupied by the physical layer channel referenced by the first signal is fixed.

[0345] As a sub-embodiment of this embodiment, the number of RBs occupied by the physical layer channel referenced by the first signal is configured through RRC signaling.

[0346] As an embodiment, the second coefficient in this application is a number between 0 and 1.

[0347] As an embodiment, the second coefficient in this application is fixed.

[0348] As an embodiment, the second coefficient in the present application is configured through RRC signaling.

[0349] As an embodiment, at least the first path loss and the second path loss are for downlink transmission.

[0350] As an embodiment, the first path loss is for downlink transmission.

[0351] As an embodiment, the second path loss is for perception.

[0352] As an embodiment, the second path loss is for a sensing link (Sensing link).

[0353] As an embodiment, the second path loss is for perception.

[0354] As an embodiment, the second path loss is for transmission other than the downlink transmission.

[0355] As an embodiment, the second path loss is for downlink transmission.

[0356] As an embodiment, the first path loss and the second path loss are both for downlink transmission.

[0357] As an embodiment, the path loss in this application for downlink transmission includes: generating the path loss for reception of a downlink reference signal.

[0358] As an embodiment, the path loss in this application for downlink transmission means that the path loss is obtained by measuring a downlink reference signal.

[0359] As an embodiment, the path loss in the present application for downlink transmission means that the first node obtains the path loss by measuring the RSRP of the downlink reference signal.

[0360] As an embodiment, the path loss in this application is for perception, which means that the path loss is generated for reception of a reference signal dedicated to perception.

[0361] As an embodiment, the path loss in this application is for sensing, which includes: generating the path loss for receiving a reference signal transmitted on a sensing link.

[0362] As an embodiment, the path loss in this application is for perception, which includes: generating the path loss for reception of a reference signal that can be used for perception transmission.

[0363] As an embodiment, the path loss in this application is for perception, which means that the path loss is obtained by measuring a reference signal dedicated to perception.

[0364] As an embodiment, the path loss in this application is for perception, which means that the path loss is obtained by measuring a reference signal transmitted on a perception link.

[0365] As an embodiment, the path loss in this application is for perception, which means that the path loss is obtained by measuring a reference signal that can be used for perception transmission.

[0366] As an embodiment, the path loss in the present application is for perception, which includes: the first node obtains the path loss by measuring the RSRP of a reference signal dedicated to perception.

[0367] As an embodiment, the path loss in the present application is for perception, which means that the first node obtains the path loss by measuring the RSRP of the reference signal transmitted on the perception link.

[0368] As an embodiment, the path loss in the present application is for perception, which includes: the first node obtains the path loss by measuring the RSRP of a reference signal that can be used for sensing transmission.

[0369] As an embodiment, the path loss in this application is for perception, which means that the path loss can be used for power control during perception signal transmission.

[0370] As an embodiment, the first signal is for transmission other than Sidelink.

[0371] As an embodiment, the Sidelink refers to a side link or a secondary link.

[0372] As an embodiment, the link other than the Sidelink includes an uplink.

[0373] As an embodiment, the link other than the Sidelink includes a downlink.

[0374] As an embodiment, the link other than the Sidelink includes a Sensing Link

[0375] Example 2

[0376] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in Figure 2.

[0377] FIG2 illustrates a network architecture 200. The network architecture 200 is the network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G systems, 5G-Advanced, and future 6G systems. The network architecture for LTE, LTE-A, 5G systems, 5G-Advanced, and future 6G systems is referred to as EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS or some other suitable terminology; the 6G network architecture may be referred to as 6GS (6G System) / EPS or some other suitable terminology. The network architecture 200 may include one or more UEs 201, a Next Generation Radio Access Network (RAN) 202, a core network 210, a Home Subscriber Server (HSS) / Unified Data Management (UDM) 220, and Internet services 230. Network architecture 200 can interconnect with other access networks, but for simplicity these entities / interfaces are not shown. As shown in FIG2 , network architecture 200 provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services. 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 an Xn interface (e.g., backhaul). Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, Basic Service Set (BSS), Extended Service Set (ESS), TRP (Transmitter Receiver Point), or some other appropriate terminology. Node 203 provides UE201 with an access point to a core network 210 ; the core network 210 is 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is 6GC.Examples of UE 201 include cellular phones, smartphones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband physical network devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. 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 core network 210 via an S1 / NG interface. The core network 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5G-CN / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which 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. Internet services 230 include operator-specific Internet protocol services, which may include Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0378] As an embodiment, the first node in the present application includes the UE201.

[0379] As an embodiment, the second node in this application includes the node 203.

[0380] As an embodiment, the node 203 is a macro cell base station.

[0381] As an embodiment, the node 203 is a micro cell base station.

[0382] As an embodiment, the node 203 is a pico cell base station.

[0383] As an embodiment, the node 203 is a home base station (Femtocell).

[0384] As an embodiment, the node 203 is a base station device that supports a large delay difference.

[0385] As an embodiment, the node 203 is a flying platform device.

[0386] As an embodiment, the node 203 is a satellite device.

[0387] As an embodiment, the node 203 is a test device (eg, a transceiver that simulates some functions of a base station, a signaling tester).

[0388] As an embodiment, the UE 201 includes a mobile phone.

[0389] As an embodiment, the UE 201 is a vehicle including a car.

[0390] As an embodiment, the wireless link from the UE 201 to the node 203 is an uplink, and the uplink is used to perform uplink transmission.

[0391] As an embodiment, the wireless link from the node 203 to the UE 201 is a downlink, and the downlink is used to perform downlink transmission.

[0392] As an embodiment, the wireless link between the node 203 and the UE 201 includes a cellular network link.

[0393] As an embodiment, the node 203 and the UE 201 are connected via a Uu air interface.

[0394] As an embodiment, the sender of the first reference signal includes the node 203.

[0395] As an embodiment, the receiver of the first reference signal includes the UE201.

[0396] As an embodiment, the sender of the first signal includes the UE201.

[0397] As an embodiment, the receiver of the first signal includes the node 203.

[0398] As an embodiment, the recipient of the first signal includes the UE201.

[0399] As an embodiment, the sender of the first signaling in this application includes the node 203.

[0400] As an embodiment, the recipient of the first signaling in the present application includes the UE201.

[0401] As an embodiment, the sender of the second reference signal in this application includes the node 203.

[0402] As an embodiment, the receiver of the second reference signal in the present application includes the UE201.

[0403] As an embodiment, the sender of the second signal in the present application includes the UE201.

[0404] As an embodiment, the sender of the second signal in this application includes the node 203.

[0405] As an embodiment, the receiver of the second signal in the present application includes the UE201.

[0406] As an embodiment, the sender of the first information block in the present application includes the UE201.

[0407] As an embodiment, the receiver of the first information block in this application includes the node 203.

[0408] As an embodiment, the UE 201 supports LPP (LTE positioning protocol).

[0409] As an embodiment, the UE201 supports NRPP (NR Positioning Protocol).

[0410] As an embodiment, the UE201 supports NRPPa (NR Positioning Protocol A).

[0411] As an embodiment, the UE 201 supports SPP (Sensing Positioning Protocol).

[0412] As an embodiment, the node 203 supports ISAC.

[0413] As an embodiment, the UE 201 supports ISAC.

[0414] As an embodiment, the node 203 at least supports a TRP monostatic (transmitter-receiver monostatic) perception model.

[0415] As an embodiment, the UE 201 at least supports the UE monostatic perception model.

[0416] As an embodiment, the node 203 at least supports a TRP-UE bistatic (transmitter-receiver dual-location) perception model.

[0417] As an embodiment, the UE201 at least supports the TRP-UE bistatic perception model.

[0418] As an embodiment, the node 203 at least supports the UE-TRP bistatic perception model.

[0419] As an embodiment, the UE 201 at least supports the UE-TRP bistatic perception model.

[0420] As an embodiment, the node 203 at least supports the TRP-TRP bistatic perception model.

[0421] As an embodiment, the UE 201 at least supports a UE-UE bistatic perception model.

[0422] As an embodiment, the UE 201 supports a 5G system.

[0423] As an embodiment, the node 203 supports a 5G system.

[0424] As an embodiment, the UE201 supports at least the 6G system.

[0425] As an embodiment, the node 203 supports at least a 6G system.

[0426] Example 3

[0427] Embodiment 3 illustrates a schematic diagram of an embodiment of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application, as shown in FIG3 .

[0428] FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for a first communication node device (a UE or RSU (Road Side Unit) in a V2X (Vehicle to Everything) network, a vehicle-mounted device, or a vehicle-mounted communication module) and a second node device (a gNB, a UE or RSU in a V2X network, a vehicle-mounted device, or a vehicle-mounted communication module), or the control plane 300 between two UEs using three layers: Layer 1 (L1), Layer 2 (L2), and Layer 3 (L3). L1 is the lowest layer and implements various PHY (Physical Layer) signal processing functions. L1 will be referred to herein as PHY 301. L2 305, located above PHY 301, is responsible for the link between the first and second node devices, or between two UEs, through PHY 301. L2 305 includes the MAC (Medium Access Control) sublayer 302, the RLC (Radio Link Control) sublayer 303, and the PDCP (Packet Data Convergence Protocol) sublayer 304, which terminate at the second node device. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and supports handover of the first communication node device between the second communication node devices. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception 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 in the control plane 300 is responsible for obtaining radio resources (ie, radio bearers) and configuring lower layers using RRC signaling between the second communication node device and the first communication node device.The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture for the first and second communication node devices in the user plane 350 is substantially identical to the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in Layer 2 355, the RLC sublayer 353 in Layer 2 355, and the MAC sublayer 352 in Layer 2 355. However, the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. Layer 2 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS (Quality of Service) flows to 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) terminated at the P-GW on the network side and an application layer terminated at the other end of the connection (e.g., a remote UE, a server, etc.).

[0429] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0430] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0431] As an embodiment, the first signal is generated by the PHY301 or PHY351.

[0432] As an embodiment, the first signaling in this application is generated in the RRC306.

[0433] As an embodiment, the first signaling in this application is generated by the MAC302 or MAC352.

[0434] As an embodiment, the second signal in this application is generated by the PHY301 or PHY351.

[0435] As an embodiment, the higher layer mentioned in this application refers to a layer above the physical layer.

[0436] As an embodiment, the higher layer described in the present application includes a MAC layer.

[0437] As an embodiment, the higher layer described in the present application includes an RRC layer.

[0438] Example 4

[0439] Embodiment 4 illustrates a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 410 and a second communication device 450 communicating with each other in an access network.

[0440] The first communications device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 , and an antenna 420 .

[0441] The second communication device 450 includes a controller / processor 459 , a memory 460 , a data source 467 , a transmit processor 468 , a receive processor 456 , a multi-antenna transmit processor 457 , a multi-antenna receive processor 458 , a transmitter / receiver 454 and an antenna 452 .

[0442] In transmission from the first communications device 410 to the second communications device 450, at the first communications device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 functionality. In the DL, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the second communications device 450 based on various priority metrics. The controller / processor 475 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the second communications device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 (i.e., physical layer). The transmit processor 416 performs coding and interleaving to facilitate forward error correction (FEC) at the second communications device 450, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying (BPSK), quadrature phase shift keying (QPSK), M-ary phase shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding on the coded and modulated symbols, including codebook-based and non-codebook-based precoding and beamforming, to generate one or more parallel streams. The transmit processor 416 then maps each parallel stream to a subcarrier, multiplexes the modulated symbols with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multi-carrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, which is then provided to a different antenna 420.

[0443] During transmission from the first communication device 410 to the second communication device 450, at the second communication device 450, each receiver 454 receives a signal via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain using a Fast Fourier Transform (FFT). In the frequency domain, the physical layer data signal and reference signal are demultiplexed by the receive processor 456, where the reference signal is used for channel estimation. The data signal is recovered in the multi-antenna receive processor 458 after multi-antenna detection to any parallel stream destined for the second communication device 450. The symbols on each parallel stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the first communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements L2 functionality. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. In the DL, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above L2. Various control signals may also be provided to L3 for L3 processing. The controller / processor 459 is also responsible for error detection using acknowledgment (ACK) and / or negative acknowledgment (NACK) protocols to support HARQ operations.

[0444] During transmission from the second communications device 450 to the first communications device 410, at the second communications device 450, a data source 467 is used to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above L2. Similar to the transmit functionality at the first communications device 410 described in the DL, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on the radio resource allocation of the first communications device 410, implementing L2 functionality for both the user plane and the control plane. The controller / processor 459 is also responsible for HARQ operations, retransmission of lost packets, and signaling to the first communications device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting parallel streams into multi-carrier / single-carrier symbol streams. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, these streams are provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0445] During transmission from the second communication device 450 to the first communication device 410, the functionality at the first communication device 410 is similar to the reception functionality at the second communication device 450 described for transmission from the first communication device 410 to the second communication device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to the multi-antenna receive processor 472 and the receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 functionality. The controller / processor 475 implements L2 functionality. The controller / processor 475 may be associated with a memory 476 storing program code and data. The memory 476 may be referred to as a computer-readable medium. The controller / processor 475 provides demultiplexing between transmit and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the second communication device 450. The upper layer data packets from the controller / processor 475 may be provided to the core network. The controller / processor 475 is also responsible for error detection using an ACK and / or NACK protocol to support HARQ operations.

[0446] As an embodiment, the second communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The second communication device 450 device receives at least a first reference signal and generates a first path loss for the reception of the first reference signal; transmits a first signal; whether the transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; the first signal is for transmission outside the sidelink.

[0447] As an embodiment, the second communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: receiving a first reference signal; and sending a first signal.

[0448] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor. The first communication device 410 device at least transmits a first reference signal, the recipient of the first reference signal includes the second communication device 450, and the second communication device 450 generates a first path loss in response to the reception of the first reference signal; the second communication device 450 transmits a first signal, and whether the transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the sidelink.

[0449] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: sending a first reference signal.

[0450] As an embodiment, the first node in this application includes the second communication device 450.

[0451] As an embodiment, the second node in this application includes the first communication device 410.

[0452] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a first reference signal; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a first reference signal.

[0453] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send a first signal; and at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, and the memory 476} is used to receive a first signal.

[0454] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send a first signal; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a first signal.

[0455] As a sub-embodiment of this embodiment, the first signal is a perception signal used for sending and receiving a single device.

[0456] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a second reference signal; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a second reference signal.

[0457] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send a second signal; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a second signal.

[0458] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send a second signal; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive a second signal.

[0459] As a sub-embodiment of this embodiment, the second signal is a reference signal for sensing the transceiver location.

[0460] As an embodiment, at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, and the data source 467} is used to send a first information block; and at least one of {the antenna 420, the receiver 418, the receive processor 470, the multi-antenna receive processor 472, the controller / processor 475, and the memory 476} is used to receive a first information block.

[0461] Example 5

[0462] Example 5 illustrates a first flowchart of transmission between a first node and a second node according to an embodiment of the present application. In FIG5 , the first node U1 and the second node N2 communicate via a wireless link. The steps in blocks 51, 52, and F53 are optional. It should be noted that the order in this embodiment does not limit the order of signal transmission and implementation in this application.

[0463] For the first node U1, a first information block is sent in step S5110; a first signaling is received in step S5120; a first reference signal is received in step S510; and a first signal is sent in step S511.

[0464] For the second node N2, the first information block is received in step S5210; the first signaling is sent in step S5220; the first reference signal is sent in step S520; and the first signal is received in step S521.

[0465] In embodiment 5, the first node U1 generates a first path loss for reception of the first reference signal; whether the transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

[0466] As an embodiment, the first node U1 is the first node in this application.

[0467] As an embodiment, the second node N2 is the second node in this application.

[0468] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a base station device and a user equipment.

[0469] As an embodiment, the air interface between the second node N2 and the first node U1 includes a wireless interface between a relay node device and a user equipment.

[0470] As an embodiment, the second node N2 and the first node U1 communicate with each other via a Uu interface.

[0471] As an embodiment, the second node N2 is a base station maintaining a service cell of the first node U1.

[0472] As an embodiment, the first signal is transmitted on a physical layer control channel (only used to transmit physical layer signaling).

[0473] As an embodiment, the first signal is transmitted on a physical layer data channel (used to transmit user data).

[0474] As an embodiment, the first signal is transmitted on a physical layer channel dedicated to sensing.

[0475] As an embodiment, the first signal occupies PUCCH.

[0476] As an embodiment, the first signal occupies PUSCH.

[0477] As an embodiment, step S511 is performed after step S510.

[0478] As an embodiment, the steps in box F51 in FIG5 exist; the method applied to the first node U1 in this application includes: sending a first information block, the first information block indicating that the first node supports the sending of the first signal.

[0479] As a sub-embodiment of this embodiment, the first information block is carried by UECapabilityInformation IE (Information Element).

[0480] As a sub-embodiment of this embodiment, the first information block includes one or more fields of UECapabilityInformation IE.

[0481] As a sub-embodiment of this embodiment, the first information block is carried by UEAssistanceInformation IE.

[0482] As a sub-embodiment of this embodiment, the first information block includes one or more fields of the UEAssistanceInformation IE.

[0483] As a sub-embodiment of this embodiment, the first information block indicates the category to which the first node belongs.

[0484] As a sub-embodiment of this embodiment, the first information block indicates the capability of the first node.

[0485] As a sub-embodiment of this embodiment, the first information block indicates that the first node supports sending a perception signal.

[0486] As a sub-embodiment of this embodiment, the first information block indicates that the first node supports ISAC.

[0487] As a sub-embodiment of this embodiment, the first information block indicates that the first node supports

[0488] As a sub-embodiment of this embodiment, the first information block indicates that the first node supports a UE monostatic perception model.

[0489] As a sub-embodiment of this embodiment, the first information block indicates that the first node supports the TRP-UE bistatic perception model

[0490] As a sub-embodiment of this embodiment, the first information block indicates that the first node supports the UE-TRP bistatic perception model

[0491] As a sub-embodiment of this embodiment, the first information block indicates that the first node supports a UE-UE bistatic perception model.

[0492] As a sub-embodiment of this embodiment, the logical channel occupied by the first information block includes a DCCH (Dedicated Control CHannel).

[0493] As a sub-embodiment of this embodiment, step S5110 is before step S510; step S5210 is before step S520.

[0494] As an embodiment, the step in block F51 in FIG. 5 does not exist.

[0495] As an embodiment, the steps in box F52 in FIG. 5 exist; the method applied to the first node U1 in this application includes: receiving first signaling; and the second path loss depends on the first signaling.

[0496] As a sub-embodiment of this embodiment, the first signaling includes higher-layer signaling.

[0497] As a sub-embodiment of this embodiment, the first signaling includes an RRC signaling.

[0498] As a sub-embodiment of this embodiment, the first signaling includes an RRC IE.

[0499] As a sub-embodiment of this embodiment, the first signaling includes at least one field in an RRC IE.

[0500] As a sub-embodiment of this embodiment, the first signaling configures the second path loss.

[0501] As a sub-embodiment of this embodiment, the first signaling configures the first waveform, and the second path loss depends on the first waveform.

[0502] As a sub-embodiment of this embodiment, the first signaling configures at least one of the time domain resources or frequency domain resources occupied by the first signal.

[0503] As a sub-embodiment of this embodiment, the first signaling configures multiple candidates for the second path loss.

[0504] As a subsidiary embodiment of this sub-embodiment, the first waveform indicates the second path loss from a plurality of candidates for the second path loss.

[0505] As a subsidiary embodiment of this sub-embodiment, at least one of time domain resources and frequency domain resources occupied by the first signal indicates the second path loss from a plurality of candidates for the second path loss.

[0506] As a sub-embodiment of this embodiment, the first signaling configures multiple candidate offset values, and the second path loss depends on the multiple candidate offset values.

[0507] As a subsidiary embodiment of this sub-embodiment, at least one of the time domain resources and frequency domain resources occupied by the first signal indicates a target offset value from the multiple candidate offset values.

[0508] As a subsidiary embodiment of this sub-embodiment, the first waveform indicates a target offset value from among the plurality of candidate offset values.

[0509] As an implementation example of the above two subsidiary embodiments, the second path loss depends on the target offset value.

[0510] As an implementation example of the above two subsidiary embodiments, the second path loss depends on the target offset value and the first path loss.

[0511] As a sub-embodiment of this embodiment, the first signaling includes MAC signaling.

[0512] As a sub-embodiment of this embodiment, the first signaling includes a MAC CE (Control Element).

[0513] As a sub-embodiment of this embodiment, the first signaling indicates the second path loss.

[0514] As a sub-embodiment of this embodiment, the first signaling indicates the second reference signal in this application; and the second path loss is generated based on the reception of the second reference signal in this application.

[0515] As a sub-embodiment of this embodiment, the first signaling indicates the second signal in this application; and the second path loss is generated for reception of the second signal in this application.

[0516] As a sub-embodiment of this embodiment, step S5120 is before step S510; step S5220 is before step S520.

[0517] As a sub-embodiment of this embodiment, step S5120 is before step S511; step S5220 is before step S511.

[0518] As an embodiment, the steps in box 51 and box 52 in FIG. 5 both exist.

[0519] As a sub-embodiment of this embodiment, the step in box 51 is before the step in box 52 ; the step in box 52 is after the step in box 51 .

[0520] As an embodiment, the step in block 52 of FIG. 5 does not exist.

[0521] As an embodiment, the steps in box 51 and box 52 in FIG. 5 do not exist.

[0522] As an embodiment, the steps in block F53 in FIG. 5 exist; the method applied to the second node N2 in the present application includes: receiving a first signal.

[0523] As a sub-embodiment of this embodiment, the first signal is used in a sensing system with separate sending and receiving locations.

[0524] As a sub-embodiment of this embodiment, the first signal is transmitted on a channel dedicated to perception.

[0525] As a sub-embodiment of this embodiment, the first signal is used for cellular signal transmission.

[0526] As a sub-embodiment of this embodiment, the first signal is an uplink signal.

[0527] As a sub-embodiment of this embodiment, the second node N2 receives and reflects the first signal.

[0528] As a sub-embodiment of this embodiment, the receiver of the first signal includes the first node U1.

[0529] As an embodiment, the step in block F53 in FIG. 5 does not exist.

[0530] As a sub-embodiment of this embodiment, the first node U1 receives the first signal.

[0531] As a sub-embodiment of this embodiment, the first node U1 receives an echo of the first signal reflected by the second node N2.

[0532] As a sub-embodiment of this embodiment, the first node U1 receives an echo of the first signal reflected by the target node.

[0533] As an embodiment, the target node described in this application is a passive node.

[0534] As an embodiment, the target node described in this application is not a communication node.

[0535] As an embodiment, the target node in the present application includes the second node N2 or a user carrying the second node N2 or a device carrying the second node.

[0536] As an embodiment, the target node in this application does not include the second node N2 or the user carrying the second node N2 or the device carrying the second node N2.

[0537] As an embodiment, the target node in the present application includes a device that establishes an RRC connection with the second node N2.

[0538] Example 6

[0539] Example 6 illustrates a second flow chart for transmission between a first node and a second node according to an embodiment of the present application. In FIG6 , the first node U3 and the second node N4 communicate via a wireless link. It should be noted that the sequence in this example does not limit the signal transmission sequence and implementation order in this application.

[0540] For the first node U3, a second reference signal is received in step S630.

[0541] For the second node N4, a second reference signal is sent in step S640.

[0542] In Embodiment 6, the second reference signal is for the downlink transmission described in this application, and the second reference signal and the first signal are QCL; and the second path loss is generated for reception of the second reference signal.

[0543] As an embodiment, the first node U3 is the first node in this application.

[0544] As an embodiment, the second node N4 is the second node in this application.

[0545] As an embodiment, the air interface between the second node N4 and the first node U3 includes a wireless interface between a base station device and a user equipment.

[0546] As an embodiment, the air interface between the second node N4 and the first node U3 includes a wireless interface between a relay node device and a user equipment.

[0547] As an embodiment, the second node N4 and the first node U3 communicate with each other through a Uu interface.

[0548] As an embodiment, the second node N4 is a base station maintaining a service cell of the first node U3.

[0549] As an embodiment, the QCL refers to Quasi Co-Location.

[0550] As an embodiment, the QCL refers to Quasi Co-Located.

[0551] As an embodiment, the QCL includes: QCL parameters.

[0552] As an embodiment, the QCL includes: a QCL assumption.

[0553] As an embodiment, the QCL includes: QCL type (type).

[0554] As an embodiment, the QCL includes one or more of: Doppler shift, Doppler spread, average delay, delay spread, spatial Tx parameter or spatial Rx parameter.

[0555] As an embodiment, the QCL types described in this application include typeA, typeB, typeC and typeD.

[0556] As an embodiment, the specific definitions of typeA, typeB, typeC and typeD described in this application refer to clause 5.1.5 of 3GPP (the 3rd Generation Partnership Project) TS (Technical Specification) 38.214.

[0557] As an embodiment, the second reference signal is a downlink reference signal.

[0558] As an embodiment, the second reference signal is a reference signal used for downlink path loss estimation.

[0559] As an embodiment, the second reference signal occupies one reference signal resource.

[0560] As an embodiment, the second reference signal corresponds to a reference signal resource identifier.

[0561] As an embodiment, the second reference signal corresponds to a path loss reference signal resource identifier.

[0562] As an embodiment, the second reference signal includes one of CSI-RS and SSB.

[0563] As an embodiment, the second reference signal is one of CSI-RS and SSB.

[0564] As an embodiment, the second reference signal includes CSI-RS.

[0565] As an embodiment, the second reference signal is a CSI-RS.

[0566] As an embodiment, the second reference signal occupies one CSI-RS resource.

[0567] As an embodiment, the second reference signal occupies one NZP-CSI-RS resource.

[0568] As an embodiment, the second reference signal includes SSB.

[0569] As an embodiment, the second reference signal is SSB.

[0570] As an embodiment, the second reference signal corresponds to an SSB-Index.

[0571] As an embodiment, the second reference signal corresponds to an ssb-Index.

[0572] As an embodiment, the second reference signal and the first signal are QCL, which means that the first node assumes that the same spatial relationship is used to send the second reference signal and receive the first signal.

[0573] As an embodiment, the second reference signal and the first signal are QCL, which means that the same spatial relationship is used for receiving the second reference signal and sending the first signal.

[0574] As an embodiment, the second reference signal and the first signal are QCL, which means that the second reference signal and the first signal correspond to the same spatial reception parameters.

[0575] As an embodiment, the meaning that the second reference signal and the first signal are QCL includes: the second reference signal and the first signal correspond to the same spatial transmission parameters.

[0576] As an embodiment, the meaning that the second reference signal and the first signal are QCL includes: the spatial relationship of the second reference signal is associated with a candidate reference signal resource set, and the first signal and a candidate reference signal in the candidate reference signal resource set are QCL.

[0577] As an embodiment, the meaning that the second reference signal and the first signal are QCL includes: the second reference signal and the first signal are both QCL with the same reference signal resource.

[0578] As an embodiment, the meaning that the second reference signal and the first signal are QCL includes: the second reference signal and the first signal correspond to the same TCI (Transmission Configuration Indicator).

[0579] As an embodiment, the second reference signal and the first signal are QCL, which means that the second reference signal and the first signal correspond to the same TCI state.

[0580] As an embodiment, the meaning that the second reference signal and the first signal are QCL includes: the second reference signal and the first signal correspond to the same TCI-StateId.

[0581] As an embodiment, the second reference signal and the first signal are QCL, which means that the second reference signal and the first signal correspond to the same large-scale properties.

[0582] As an embodiment, the second reference signal and the first signal are QCL, which means that: the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second reference signal can be inferred from the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the first signal, or the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the first signal can be inferred from the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second reference signal.

[0583] As an embodiment, the second reference signal and the first signal are QCL, which means that: the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second reference signal can be inferred from the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the first signal, and the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the first signal can be inferred from the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second reference signal.

[0584] As an embodiment, the large-scale characteristics described in this application include one or more of delay spread, Doppler spread, Doppler shift, average delay and spatial Rx parameter.

[0585] As an embodiment, the first node U3 generates the second path loss in response to reception of the second reference signal.

[0586] As an embodiment, the first node U3 measures the second reference signal to obtain the second path loss.

[0587] As an embodiment, the first node U3 determines the second path loss by determining the RSRP of the second reference signal.

[0588] As an embodiment, the first node U3 obtains the second path loss by subtracting the received power of the second reference signal from the transmitted power of the second reference signal.

[0589] As an embodiment, the first node U3 obtains the second path loss by subtracting the RSRP of the second reference signal from the transmit power of the second reference signal.

[0590] As an embodiment, the first node U3 determines the second path loss by receiving the second reference signal.

[0591] As an embodiment, step S630 in this embodiment is optional.

[0592] As an embodiment, step S640 in this embodiment is optional.

[0593] As an embodiment, it exists in step S630 described in this embodiment; step S630 is before step S511 described in embodiment 5 described in this application.

[0594] As a sub-embodiment of this embodiment, step S630 is before step S510 in embodiment 5 described in this application; or, step S630 is after step S510 in embodiment 5 described in this application.

[0595] As an embodiment, it exists in step S640 described in this embodiment; step S640 is before step S511 described in embodiment 5 described in this application.

[0596] As a sub-embodiment of this embodiment, step S640 is before step S510 in embodiment 5 described in this application; or, step S640 is after step S510 in embodiment 5 described in this application.

[0597] Example 7

[0598] Embodiment 7 illustrates a third flow chart of transmission between a first node and a second node according to an embodiment of the present application, as shown in FIG7. It should be noted that the order in this embodiment does not limit the signal transmission order and implementation order in this application.

[0599] For the first node U5, a second signal is sent in step S750 and a second signal is received in step S751.

[0600] For the target node O6, the second signal is reflected in step S640.

[0601] In Embodiment 7, the first node U5 generates the second path loss for reception of the second signal; the second signal is for transmission other than the downlink transmission described in this application.

[0602] As an embodiment, the first node U5 is the first node in this application.

[0603] As an embodiment, the target node O6 is the target node described in this application.

[0604] As an embodiment, the waveform of the second signal is the same as the waveform of the first signal; the waveform of the first signal is the first waveform.

[0605] As an embodiment, the waveform of the second signal is one of the multiple candidate waveforms of the first waveform in the present application, and the waveform of the first signal is another candidate waveform among the multiple candidate waveforms of the first waveform in the present application.

[0606] As an embodiment, the senders of the second signal and the first reference signal are co-located.

[0607] As an embodiment, the senders of the second signal and the first reference signal are not co-located.

[0608] As an embodiment, the sender of the second signal is the second node in this application.

[0609] As an embodiment, the sender of the second signal is the first node U5.

[0610] As an embodiment, the second signal is an echo of a signal sent by the first node.

[0611] As an embodiment, the first node U5 generates the second path loss in response to reception of the second signal.

[0612] As an embodiment, the first node U5 measures the first signal to obtain the second path loss.

[0613] As an embodiment, the first node U5 determines the second path loss by determining the RSRP of the second signal.

[0614] As an embodiment, the first node U5 obtains the second path loss by subtracting the receiving power of the second signal from the transmitting power of the second signal.

[0615] As an embodiment, the transmission power of the second signal is a linear average of power contributions of all REs carrying the second signal within the working system bandwidth.

[0616] As an embodiment, the first node U5 obtains the second path loss by subtracting the RSRP of the second signal from the transmission power of the second signal.

[0617] As an embodiment, the transmission power of the second signal is a linear average of the power contributions of the REs carrying the configured second signal within the working system bandwidth.

[0618] As an embodiment, the transmission power of the second signal is configured by higher layer signaling.

[0619] As an embodiment, the transmission power of the second signal is configured by RRC signaling.

[0620] As an embodiment, the transmission power of the second signal is indicated by higher layer signaling.

[0621] As an embodiment, the transmission power of the second signal is indicated by RRC signaling.

[0622] As an embodiment, the RSRP of the second signal is the RSRP of a higher layer filter.

[0623] As an embodiment, the RSRP of the second signal includes layer 3 filtered RSRP.

[0624] As an embodiment, the RSRP of the second signal includes L3-RSRP.

[0625] As an embodiment, the first node U5 determines the second path loss by receiving the second signal.

[0626] As an embodiment, the second signal is for transmission other than the downlink transmission.

[0627] As an embodiment, the second signal is for perceptual transmission.

[0628] As an embodiment, the second signal is for perception.

[0629] As an embodiment, the second signal is for uplink transmission.

[0630] As an embodiment, step S750 in this embodiment is optional.

[0631] As an embodiment, step S751 in this embodiment is optional.

[0632] As an embodiment, it exists in step S750 described in this embodiment; step S750 is before step S511 described in embodiment 5 described in this application.

[0633] As a sub-embodiment of this embodiment, step S750 is before step S510 in embodiment 5 described in this application; or, step S750 is after step S510 in embodiment 5 described in this application.

[0634] As an embodiment, step S751 of this embodiment exists; step S751 is before step S511 of embodiment 5 described in this application.

[0635] As a sub-embodiment of this embodiment, step S751 is before step S510 in embodiment 5 described in this application; or, step S751 is after step S510 in embodiment 5 described in this application.

[0636] Example 8

[0637] Embodiment 8 illustrates a schematic diagram of a second candidate power value according to an embodiment of the present application, as shown in FIG8. In FIG8, the second candidate power value is linearly correlated with the third power value; at least one of the third power value and the second path loss depends on the first waveform.

[0638] As an embodiment, the third power value depends on the first waveform.

[0639] As an embodiment, the unit of the third power value is dBm.

[0640] As an embodiment, the unit of the third power value is mW.

[0641] As an embodiment, the unit of the third power value is W.

[0642] As an embodiment, the third power value corresponds to the P0 value of the perception signal.

[0643] As an embodiment, the candidates for the third power value include multiple power values, and the multiple candidates for the third power value are RRC configured.

[0644] As an embodiment, the second target power value in the present application includes the third power value.

[0645] As an embodiment, the meaning that the third power value depends on the first waveform includes: the first waveform is one of multiple candidate waveforms, the multiple candidate waveforms respectively correspond to multiple reference power values, and the third power value is the reference power value corresponding to the first waveform among the multiple reference power values.

[0646] As an embodiment, the third power value being dependent on the first waveform means that the priority of the first waveform is used to determine the third power value.

[0647] As an embodiment, the third power value being dependent on the first waveform means that the demand corresponding to the first waveform is used to determine the third power value.

[0648] As an embodiment, the meaning that the third power value depends on the first waveform includes: the type of the first waveform is used to determine the third power value.

[0649] As an embodiment, the requirements corresponding to the first waveform in the present application include at least one of ranging, speed measurement, angle measurement and positioning.

[0650] As an embodiment, the type of the first waveform in the present application includes a modulation mode of the perception waveform.

[0651] As an embodiment, the types of the first waveform in the present application include frequency-modulated waves and single-frequency waves.

[0652] As an embodiment, the type of the first waveform in the present application is a modulation method of the sensing waveform.

[0653] As an embodiment, the type of the first waveform in the present application includes a sensing mode applied by the sensing waveform, and the sensing mode includes single-station sensing and dual-station sensing.

[0654] As an embodiment, the second path loss depends on the first waveform.

[0655] As an embodiment, the second path loss being dependent on the first waveform means that: the first waveform is one of a plurality of candidate waveforms, the plurality of candidate waveforms respectively correspond to a plurality of reference path losses, and the second path loss is a reference path loss corresponding to the first waveform among the plurality of reference path losses.

[0656] As an embodiment, the third power value being dependent on the first waveform means that the type of the first waveform is used to determine the second path loss.

[0657] As an embodiment, the third power value being dependent on the first waveform means that the priority of the first waveform is used to determine the second path loss.

[0658] As an embodiment, the third power value being dependent on the first waveform means that the demand corresponding to the first waveform is used to determine the second path loss.

[0659] As an embodiment, the third power value and the second path loss both depend on the first waveform.

[0660] As an embodiment, the meaning that both the third power value and the second path loss depend on the first waveform includes: the first waveform is one of multiple candidate waveforms, the multiple candidate waveforms respectively correspond to multiple reference power values, and the third power value is the reference power value corresponding to the first waveform among the multiple reference power values; and the first waveform is one of multiple candidate waveforms, the multiple candidate waveforms respectively correspond to multiple reference path losses, and the second path loss is the reference path loss corresponding to the first waveform among the multiple reference path losses.

[0661] As an embodiment, the meaning that both the third power value and the second path loss depend on the first waveform includes: the type of the first waveform is used to determine the third power value and the second path loss.

[0662] As an embodiment, the meaning that both the third power value and the second path loss depend on the first waveform includes: the priority of the first waveform is used to determine the third power value and the second path loss.

[0663] As an embodiment, the meaning that both the third power value and the second path loss depend on the first waveform includes: the demand corresponding to the first waveform is used to determine the third power value and the second path loss.

[0664] Example 9

[0665] Embodiment 9 illustrates a schematic diagram of the transmit power value of a first signal according to an embodiment of the present application, as shown in FIG9. In FIG9, the transmit power value of the first signal is the minimum value among the first maximum power value, the second maximum power value, and the target candidate power value; and the target candidate power value is the smaller of the first candidate power value and the second candidate power value.

[0666] In embodiment 9, the waveform of the first signal is a first waveform; the first maximum power value depends on the configured maximum output power, and the second maximum power value depends on the configuration for transmission of the first signal.

[0667] As an embodiment, the waveform of the first signal is a first waveform; the transmission power value of the first signal is the minimum value of the first maximum power value, the second maximum power value and the target candidate power value; the target candidate power value is the smaller of the first candidate power value and the second candidate power value; the first maximum power value depends on the configured maximum output power, and the second maximum power value depends on the configuration for the transmission of the first signal.

[0668] As an embodiment, the unit of the first maximum power value is dBm.

[0669] As an embodiment, the unit of the first maximum power value is mW.

[0670] As an embodiment, the unit of the first maximum power value is W.

[0671] As an embodiment, the first maximum power value depends on the configured maximum output power.

[0672] As an embodiment, the first maximum power value is the maximum transmission power value of the uplink signal configured by the first node.

[0673] As an embodiment, the first maximum power value is the maximum output power (maximum output power) configured by the first node.

[0674] As an embodiment, the first maximum power value is the maximum output power configured by the first node for a carrier.

[0675] As an embodiment, the first maximum power value is a maximum output power value configured by the UE for a given serving cell of a given carrier.

[0676] As an embodiment, the first maximum power value is related to the capability of the first node.

[0677] As an embodiment, the first maximum power value is related to the category of the first node.

[0678] As an embodiment, the first maximum power value depends on PCMAX in the 3GPP protocol.

[0679] As an embodiment, the first maximum power value is PCMAX in the 3GPP protocol.

[0680] As an embodiment, the unit of the second maximum power value is dBm.

[0681] As an embodiment, the unit of the second maximum power value is mW.

[0682] As an embodiment, the unit of the second maximum power value is W.

[0683] As an embodiment, the second maximum power value depends on the configuration for transmission of the first signal.

[0684] As an embodiment, the second maximum power value is the maximum transmit power value of the perception signal configured by the first node.

[0685] As an embodiment, the second maximum power value is the maximum transmission power value configured by the first node for sensing signals.

[0686] As an embodiment, the second maximum power value is the maximum transmission power value that the first node can use to send the perception signal.

[0687] As an embodiment, the second maximum power value is equal to PCMAX in the 3GPP protocol.

[0688] As an embodiment, the second maximum power value is equal to PMAX,Sensing.

[0689] As an embodiment, the second maximum power value is equal to PMAX, Waveform.

[0690] As an embodiment, the second maximum power value depends on the first waveform.

[0691] As an embodiment, the second maximum power value is related to the first waveform.

[0692] As an embodiment, the second maximum power value is related to the RRC signaling configuration.

[0693] Example 10

[0694] Embodiment 10 illustrates a schematic diagram of three typical transmission situations of a first signal, a first reference signal, a second reference signal, and a second signal according to an embodiment of the present application, as shown in FIG10 . In FIG10 , case (a) indicates that a first node receives a first reference signal and a second reference signal from a second node, the first node generates a first path loss for receiving the first reference signal and a second path loss for receiving the second reference signal, the first node sends a first signal, and the second node receives the first signal; case (b) indicates that a first node receives a first reference signal from a second node, the first node sends a second signal, and receives an echo of the second signal after being reflected, refracted, or diffracted by a target in a wireless channel, the first node generates a first path loss for receiving the first reference signal and a second path loss for receiving the second signal, the first node sends the first signal, and receives an echo of the first signal after being reflected, refracted, or diffracted by a target in a wireless channel; case (c) indicates that a first node receives a first reference signal from a second node and receives a second signal from a target node, the first node generates a first path loss for receiving the first reference signal and a second path loss for receiving the second signal, the first node sends the first signal, and receives an echo of the first signal after being reflected, refracted, or diffracted by a target in a wireless channel. It should be noted that this embodiment is merely an example of the transmission of each signal and reference signal, and does not limit the order of transmitting and receiving the signals and the reference signals and the transmitting and receiving nodes.

[0695] In embodiment 10, the waveform of the first signal is the first waveform, the transmission power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss.

[0696] As an embodiment, the first node is the first node in this application.

[0697] As an embodiment, the second node is the second node in this application.

[0698] As an embodiment, the target node in case (b) may be passive.

[0699] As an embodiment, in case (b), the target node of the second signal after reflection, refraction or diffraction and the target node of the first signal after reflection, refraction or diffraction are the same node.

[0700] As an embodiment, in case (b), the target node of the second signal after reflection, refraction or diffraction and the target node of the first signal after reflection, refraction or diffraction are different nodes.

[0701] As an embodiment, in case (c), the target node establishes an RRC connection with at least one of the first node and the second node.

[0702] As an embodiment, in case (c), the target node includes the second node or a user carrying the second node or a device carrying the second node.

[0703] As an embodiment, in case (c), the target node reflects the first signal.

[0704] As an embodiment, in case (c), the target node receives and reflects the first signal.

[0705] Example 11

[0706] Embodiment 11 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG11 . In FIG11 , the processing device 1100 in the first node includes a first receiver 1101 and a first transmitter 1102 .

[0707] In embodiment 11, the first receiver 1101 receives a first reference signal and generates a first path loss for reception of the first reference signal; and the first transmitter 1102 sends a first signal.

[0708] In Example 11, whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

[0709] As an embodiment, the second candidate power value is linearly correlated with the third power value; the third power value depends on the first waveform, or the second path loss depends on the first waveform, or both the third power value and the second path loss depend on the first waveform.

[0710] As an embodiment, the first receiver 1101 receives first signaling; the second path loss depends on the first signaling.

[0711] As an embodiment, the waveform of the first signal is a first waveform; the transmission power value of the first signal is the minimum value of the first maximum power value, the second maximum power value and the target candidate power value; the target candidate power value is the smaller of the first candidate power value and the second candidate power value; the first maximum power value depends on the configured maximum output power, and the second maximum power value depends on the configuration for the transmission of the first signal.

[0712] As an embodiment, the first receiver 1101 receives a second reference signal; the second reference signal is for the downlink transmission, and the second reference signal and the first signal are QCL; the second path loss is generated for the reception of the second reference signal.

[0713] As an embodiment, the first receiver 1101 receives a second signal; the second path loss is generated in response to the reception of the second signal; and the second signal is for transmission other than the downlink transmission.

[0714] As an embodiment, the first transmitter 1102 sends a first information block; the first information block indicates that the first node supports the sending of the first signal.

[0715] As an embodiment, the first transmitter 1102 sends a second signal.

[0716] As an embodiment, the first reference signal is a reference signal used for downlink path loss estimation.

[0717] As an embodiment, the first node measures the first reference signal to obtain the first path loss.

[0718] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the type of the waveform of the first signal.

[0719] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is a waveform for perception.

[0720] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is a waveform used only for perception.

[0721] As an embodiment, whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is an integrated waveform for ISAC.

[0722] As an embodiment, when the waveform of the first signal is the second waveform in the present application, regardless of the smaller of the first candidate power value and the second candidate power value, the transmission power value of the first signal depends on the third candidate power value in the present application.

[0723] As a sub-embodiment of this embodiment, the third candidate power value is determined according to a method for determining a transmission power value when the first signal is used as a cellular signal.

[0724] As a subsidiary embodiment of this sub-embodiment, the first signal is a PUSCH, and determination of the third candidate power value refers to Section 7.1 of 3GPP TS 38.213.

[0725] As a subsidiary embodiment of this sub-embodiment, the first signal is a PUCCH, and the determination of the third candidate power value refers to Section 7.2 of 3GPP TS 38.213.

[0726] As a subsidiary embodiment of this sub-embodiment, the first signal is an SRS defined in Rel-18 and earlier systems, and the determination of the third candidate power value refers to Section 7.3 of 3GPP TS 38.213.

[0727] As an embodiment, when the waveform of the first signal is the second waveform in the present application, regardless of which of the first candidate power value and the second candidate power value is smaller, the transmission power value of the first signal depends on only the first candidate power value of the first candidate power value and the second candidate power value.

[0728] As a sub-embodiment of this embodiment, the transmit power value of the first signal depends on the smaller one of the first candidate power value and the first maximum value.

[0729] As a sub-embodiment of this embodiment, the transmission power value of the first signal depends on the smaller of the sum of the first candidate power value and the first offset value in this application and the first maximum power value.

[0730] As a sub-embodiment of this embodiment, the transmitting power value of the first signal depends on the minimum of the sum of the first candidate power value and the first offset value in this application, the first maximum power value in this application and the second power value in this application.

[0731] As an embodiment, the first candidate power value is equal to the sum of the product of the first path loss and the first coefficient in this application and the first target power value in this application.

[0732] As an embodiment, the second candidate power value is equal to the sum of the product of the second path loss and the second coefficient in this application and the second target power value in this application.

[0733] As an embodiment, the first node is user equipment.

[0734] As an embodiment, the first node is a relay node device.

[0735] As an embodiment, the first receiver 1101 includes 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} in Example 4.

[0736] As an embodiment, the first transmitter 1102 includes at least one of {the antenna 452, the transmitter 454, the transmit processor 468, the multi-antenna transmit processor 457, the controller / processor 459, the memory 460, the data source 467} in Example 4.

[0737] Example 12

[0738] Embodiment 12 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG12. In FIG12, the processing device 1200 in the second node includes a second transmitter 1201 and a second receiver 1202, wherein the second receiver 1202 is optional.

[0739] In embodiment 12, the second transmitter 1201 sends a first reference signal, the receiver of the first reference signal includes a first node, and the first node generates a first path loss for receiving the first reference signal.

[0740] In embodiment 12, the first node sends a first signal; whether the transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; the first signal is for transmission outside the Sidelink.

[0741] As an embodiment, the second candidate power value is linearly correlated with the third power value; the third power value depends on the first waveform, or the second path loss depends on the first waveform, or both the third power value and the second path loss depend on the first waveform.

[0742] As an embodiment, the second transmitter 1201 sends a first signaling; the second path loss depends on the first signaling.

[0743] As an embodiment, the waveform of the first signal is a first waveform; the transmission power value of the first signal is the minimum value of the first maximum power value, the second maximum power value and the target candidate power value; the target candidate power value is the smaller of the first candidate power value and the second candidate power value; the first maximum power value depends on the configured maximum output power, and the second maximum power value depends on the configuration for the transmission of the first signal.

[0744] As an embodiment, the second transmitter 1201 sends a second reference signal; the second reference signal is for the downlink transmission, and the second reference signal and the first signal are QCL; the second path loss is generated for the reception of the second reference signal.

[0745] As an embodiment, the first node receives a second signal; the first node generates the second path loss in response to the reception of the second signal; and the second signal is for transmission other than the downlink transmission.

[0746] As an embodiment, the second receiver 1202 receives a first information block; the first information block indicates that the first node supports the sending of the first signal.

[0747] As an embodiment, the second receiver 1202 receives the first signal.

[0748] As an embodiment, the second transmitter 1201 sends the second signal.

[0749] As an embodiment, the first reference signal is a reference signal used for downlink path loss estimation.

[0750] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the type of the waveform of the first signal.

[0751] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is a waveform for perception.

[0752] As an embodiment, whether the transmission power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is a waveform used only for perception.

[0753] As an embodiment, whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on whether the waveform of the first signal is an integrated waveform for ISAC.

[0754] As an embodiment, when the waveform of the first signal is the second waveform in the present application, regardless of the smaller of the first candidate power value and the second candidate power value, the transmission power value of the first signal depends on the third candidate power value in the present application.

[0755] As a sub-embodiment of this embodiment, the third candidate power value is determined according to a method for determining a transmission power value when the first signal is used as a cellular signal.

[0756] As a subsidiary embodiment of this sub-embodiment, the first signal is a PUSCH, and determination of the third candidate power value refers to clause 7.1 of 3GPP TS (Technical Specification) 38.213.

[0757] As a subsidiary embodiment of this sub-embodiment, the first signal is a PUCCH, and the determination of the third candidate power value refers to Section 7.2 of 3GPP TS 38.213.

[0758] As a subsidiary embodiment of this sub-embodiment, the first signal is an SRS defined in Rel-18 and earlier systems, and the determination of the third candidate power value refers to Section 7.3 of 3GPP TS 38.213.

[0759] As an embodiment, when the waveform of the first signal is the second waveform in the present application, regardless of which of the first candidate power value and the second candidate power value is smaller, the transmission power value of the first signal depends on only the first candidate power value of the first candidate power value and the second candidate power value.

[0760] As a sub-embodiment of this embodiment, the transmit power value of the first signal depends on the smaller one of the first candidate power value and the first maximum value.

[0761] As a sub-embodiment of this embodiment, the transmission power value of the first signal depends on the smaller of the sum of the first candidate power value and the first offset value in this application and the first maximum power value.

[0762] As a sub-embodiment of this embodiment, the transmitting power value of the first signal depends on the minimum of the sum of the first candidate power value and the first offset value in this application, the first maximum power value in this application and the second power value in this application.

[0763] As an embodiment, the first candidate power value is equal to the sum of the product of the first path loss and the first coefficient in this application and the first target power value in this application.

[0764] As an embodiment, the second candidate power value is equal to the sum of the product of the second path loss and the second coefficient in this application and the second target power value in this application.

[0765] As an embodiment, the second node is a base station device.

[0766] As an embodiment, the second node is a relay node device.

[0767] As an embodiment, the second transmitter 1201 includes at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} in Embodiment 4.

[0768] As an embodiment, the second receiver 1202 includes at least one of {the antenna 420, the receiver 418, the receiving processor 470, the multi-antenna receiving processor 472, the controller / processor 475, and the memory 476} in Embodiment 4.

[0769] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, transportation vehicles, vehicles, RSUs, wireless sensors, internet cards, Internet of Things terminals, RFID (Radio Frequency Identification) terminals, NB-IoT (Narrow Band Internet of Things) terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system equipment in this application include but are not limited to macrocell base stations, microcell base stations, small cell base stations, home base stations, relay base stations, eNB (evolved Node B), gNB, TRP, GNSS (Global Navigation Satellite System), relay satellites, satellite base stations, aerial base stations, RSUs, drones, test equipment, such as transceivers or signaling testers that simulate some functions of base stations, and other wireless communication equipment.

[0770] Those skilled in the art will appreciate that the present invention may be implemented in other specific forms without departing from its core or essential characteristics. Therefore, the presently disclosed embodiments should be considered in all respects as illustrative and not restrictive. The scope of the invention is determined by the appended claims, not the foregoing description, and all modifications that come within the meaning and range of equivalents are intended to be embraced therein.

Claims

1. A first node used for wireless communication power control, characterized in that: include: a first receiver, receiving a first reference signal, and generating a first path loss based on reception of the first reference signal; A first transmitter sends a first signal; Whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

2. The first node according to claim 1, wherein: The second candidate power value is linearly correlated with the third power value; the third power value depends on the first waveform, or the second path loss depends on the first waveform, or both the third power value and the second path loss depend on the first waveform.

3. The first node according to claim 1 or 2, characterized in that include: The first receiver receives a first signaling; The second path loss depends on the first signaling.

4. The first node according to any one of claims 1 to 3, characterized in that: The waveform of the first signal is a first waveform; the transmission power value of the first signal is the minimum value of the first maximum power value, the second maximum power value and the target candidate power value; the target candidate power value is the smaller of the first candidate power value and the second candidate power value; the first maximum power value depends on the configured maximum output power, and the second maximum power value depends on the configuration for the transmission of the first signal.

5. The first node according to any one of claims 1 to 4, characterized in that: include: The first receiver receives a second reference signal; The second reference signal is for the downlink transmission, and the second reference signal and the first signal are QCL; The second path loss is generated for reception of the second reference signal.

6. The first node according to any one of claims 1 to 4, characterized in that: include: The first receiver receives a second signal; wherein the second path loss is generated for reception of the second signal; The second signal is for transmission other than the downlink transmission.

7. The first node according to any one of claims 1 to 6, characterized in that: include: The first transmitter sends a first information block; The first information block indicates that the first node supports the sending of the first signal.

8. A second node used for wireless communication power control, characterized in that: include: A second transmitter transmits a first reference signal, where a receiver of the first reference signal includes a first node, and the first node generates a first path loss for receiving the first reference signal; The first node sends a first signal, and whether a transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on a waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

9. A method for a first node used for wireless communication power control, characterized in that: include: receiving a first reference signal, and generating a first path loss based on reception of the first reference signal; sending a first signal; Whether the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value depends on the waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

10. A method for a second node used for wireless communication power control, characterized in that: include: sending a first reference signal, where a receiver of the first reference signal includes a first node, and the first node generates a first path loss in response to receiving the first reference signal; The first node sends a first signal, and whether a transmit power value of the first signal depends on the smaller of a first candidate power value and a second candidate power value depends on a waveform of the first signal; when the waveform of the first signal is the first waveform, the transmit power value of the first signal depends on the smaller of the first candidate power value and the second candidate power value; the first candidate power value depends on the first path loss, and the second candidate power value depends on the second path loss; at least the former of the first path loss and the second path loss is for downlink transmission; and the first signal is for transmission outside the Sidelink.

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