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

Abstract

The application discloses a method and device in a node for wireless communication power control. The node receives a first reference signal, generates a first path loss for the reception of the first reference signal; determines a transmission power value of a first signal and transmits the first signal, and determines a transmission power value of a second signal; the transmission power value of the first signal is equal to a first power value; the transmission power value of the second signal is equal to a second power value; the first power value depends on a first reference power value, and the first reference power value depends on the first path loss; the second power value depends on a second reference power value; time domain resources occupied by the first signal and time domain resources configured for transmitting the second signal overlap; and whether the second power value depends on whether a sum of the first reference power value and the second reference power value is greater than a first maximum power value. The application optimizes power control after introducing a sensing signal.

Description

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

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on March 4, 2024, with application number 202410240147.1 and invention name “A method and device in a node 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 in wireless communication. 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 method for optimizing system performance. Reasonable power control can reduce interference, improve spectrum efficiency, effectively reduce energy consumption, extend device battery life and service life, and adapt to different transmission conditions and mobility requirements. However, the introduction of perception signals into wireless communication systems also raises issues such as the interference of perception on the communication system, the spectrum interference between the perception and communication systems, and the optimization of perception performance. Especially when the total transmit power is limited, how to balance the performance of perception and communication and perform power control of perception signals and cellular signals is a problem worthy of study.

[0006] In response to the above problems, this 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, and achieves technical effects similar to those of 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, although the original intention of the present application is for the TRP-monostatic perception scenario, the present application can also be applied to other non-TRP-monostatic scenarios (such as UE-monostatic, TRP-UE bistatic (dual station), UE-TRP bistatic, TRP-TRP bistatic and UE-UE bistatic scenarios). Furthermore, for different scenarios (such as other non-ISAC scenarios, including but not limited to RIS (Reconfigurable Intelligent Surface), Vehicle to Everything (V2X), SideLink (SL), NCR (Network Control Repeater) capacity enhancement system, short-range communication system, NTN (Non Terrestrial Network), IoT (Internet of Things) The use of a unified design for IoT (Internet of Things), URLLC (Ultra Reliable Low Latency Communication) networks, and other networks can also help reduce hardware complexity and costs. Unless otherwise specified, the embodiments and features of any node in this application can be applied to any other node. Unless otherwise specified, the embodiments and features of any of these embodiments can be combined in any way.

[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 3GPP Technical Specifications (TS). If necessary, reference may be made to TS38.211, TS38.212, TS38.213, TS38.214, TS38.215, TS38.300, TS38.304, TS38.305, TS38.321, TS38.331, TS37.355, and TS38.423 in the 3GPP Technical Standards to assist in understanding this application.

[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, characterized by comprising:

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

[0018] determining a transmit power value of a first signal and transmitting the first signal, and determining a transmit power value of a second signal;

[0019] Among them, the sending power value of the first signal is equal to the first power value; when the second signal is sent, the sending power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

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

[0021] As an embodiment, the problem to be solved by the present application includes: how to determine the transmission power value of the first signal.

[0022] As an embodiment, the problem to be solved by the present application includes: power control in an ISAC scenario.

[0023] As an embodiment, the problem to be solved by the present application includes: power control when the first signal and the second signal overlap in time domain. As an embodiment, the characteristics of the above method include: the first signal and the second signal are respectively transmitted for different purposes.

[0024] As an embodiment, the characteristics of the above method include: the second signal is for detection.

[0025] As an embodiment, the characteristics of the above method include: determining the second power value according to whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0026] As an embodiment, the characteristics of the above method include: limiting the total transmission power of the first signal and the second signal.

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

[0028] As an embodiment, the characteristics of the above method include: the second signal is a perception signal.

[0029] As an embodiment, the characteristics of the above method include: the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap.

[0030] 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.

[0031] 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.

[0032] As an embodiment, the benefits of the above method include: determining the transmission power of the second signal by judging the total transmission power, giving priority to cellular communication while introducing perception, and preventing impact on the performance of cellular communication.

[0033] As an embodiment, the benefits of the above method include: controlling the total transmission power of the first signal and the second signal, being compatible with existing standards, and improving communication and perception performance.

[0034] According to one aspect of the present application, the above method is characterized in that it includes:

[0035] A second reference signal is received, and the second path loss is generated based on the reception of the second reference signal; the second reference power value depends on the second path loss.

[0036] The second reference signal is for downlink transmission.

[0037] As an embodiment, the problem to be solved by this application includes: how to obtain the second path loss.

[0038] As an embodiment, the problem to be solved by the present application includes: how to calculate the second reference power value.

[0039] 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, and then determine the second reference power value according to the second path loss, thereby solving the above problem.

[0040] As an embodiment, the characteristics of the above method include: the second reference signal is a reference signal for downlink transmission.

[0041] As an embodiment, the characteristics of the above method include: determining the second reference power value according to the second path loss.

[0042] As an embodiment, the benefits of the above method include: determining the second reference power value through the second path loss, compensating for the path loss during the transmission of the second signal in this application, and ensuring the transmission quality of the second signal.

[0043] According to one aspect of the present application, the above method is characterized in that the first signal is for cellular transmission and the second signal is for perception.

[0044] As an embodiment, the characteristics of the above method include: the first signal is an uplink signal.

[0045] As an embodiment, the characteristics of the above method include: the second signal is a perception signal.

[0046] As an embodiment, the characteristics of the above method include: the cellular signal and the sensing signal are distinguished, and the two are sent using two different RF (Radio Frequency) or pannels.

[0047] As an embodiment, the benefits of the above method include: differentiating the sensing signal from the cellular transmission signal, which enables better power control and interference processing.

[0048] As an embodiment, the above method has the following advantages: it distinguishes the sensing signal from the cellular transmission signal, and is more flexible.

[0049] According to one aspect of the present application, the above method is characterized in that it includes:

[0050] receiving a first signaling;

[0051] The first signaling indicates that the second reference signal and the second signal are QCL.

[0052] As an embodiment, the problem to be solved by the present application includes: how to determine the receiving space parameters of the second signal.

[0053] As an embodiment, the characteristics of the above method include: the first signaling is DCI signaling.

[0054] As an embodiment, the characteristics of the above method include: the first signaling is MAC CE.

[0055] As an embodiment, the characteristics of the above method include: indicating the spatial relationship between the second reference signal and the second signal through the first signaling.

[0056] As an embodiment, the benefits of the above method include: determining the receiving spatial parameters of the second signal through the QCL indication, thereby improving the receiving performance of the second signal.

[0057] As an embodiment, the benefits of the above method include: introducing spatial characteristics into perception, which is conducive to improving perception accuracy.

[0058] As an embodiment, the benefits of the above method include: using signaling to indicate the spatial relationship between the second reference signal and the second signal, which is compatible with existing standards.

[0059] 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.

[0060] According to one aspect of the present application, the above method is characterized in that, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the product of the sum of the first reference power value and the second reference power value and a first factor is not greater than the first maximum power value, and the first power value is equal to the product of the first reference power value and the first factor.

[0061] As an embodiment, the problem to be solved by the present application includes: how to determine the first power value.

[0062] As an embodiment, the problem to be solved by this application includes: how to determine the second power value.

[0063] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value and the second power value are respectively equal to the first reference power and the second reference power.

[0064] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, introducing the first factor to reduce the transmission power of the first signal.

[0065] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the first node independently determines the first factor.

[0066] As an embodiment, the characteristics of the above method include: the value of the first factor must satisfy that the product of the sum of the first reference power value and the second reference power value and the first factor is not greater than the first maximum power value.

[0067] As an embodiment, the benefits of the above method include: introducing the first factor to reduce the transmission power of the first signal, so that the total transmission power is less than the maximum power value limit, thereby ensuring transmission performance.

[0068] As an embodiment, the benefits of the above method include: good compatibility.

[0069] As an embodiment, the advantages of the above method include: the user can set the first factor according to the maximum power value and his / her own ability, which is more flexible.

[0070] According to one aspect of the present application, the above method is characterized in that the sum of the first reference power value and the second reference power value is greater than the first maximum power value; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is not greater than a first threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the first factor; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is greater than the first threshold, the second signal is not sent.

[0071] As an embodiment, the problem to be solved by the present application includes: when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, how to determine the transmission power of the second signal.

[0072] As an embodiment, the characteristics of the above method include: whether the second signal is sent depends on the relationship between the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value and the first threshold.

[0073] As an embodiment, the characteristics of the above method include: whether the first node sends the second signal depends on the second reference power value, the first factor and the first threshold.

[0074] As an embodiment, the characteristics of the above method include: when the transmission power of the second signal is reduced by an amount greater than the first threshold value compared to the second reference power value, the second signal is not sent; otherwise, the second signal is sent.

[0075] As an embodiment, the benefits of the above method include: when the transmission power of the second signal is low, the second signal is not sent, thereby preventing energy waste caused by the second signal not being received normally.

[0076] As an embodiment, the benefits of the above method include: saving energy.

[0077] As an embodiment, the benefits of the above method include: determining whether a signal is sent based on the transmission power, thereby enhancing the stability of the system. According to one aspect of the present application, the above method is characterized in that when the sum of the first reference power value and the second reference power value is not greater than the second maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the second maximum power value, the product of the sum of the first reference power value and the second reference power value and the second factor is not greater than the second maximum power value, the first power value is equal to the product of the first reference power value and the second factor, and the second power value is equal to the product of the second reference power value and the second factor.

[0078] As an embodiment, the problem to be solved by the present application includes: how to determine the first power value and the second power value according to the first reference power value, the second reference power value and the second maximum power value.

[0079] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is not greater than the second maximum power value, the first power value and the second power value are respectively equal to the first reference power and the second reference power.

[0080] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is greater than the second maximum power value, scaling the first reference power value and the second reference power value proportionally so that the sum of the first power value and the second power value is less than or equal to the second maximum power value.

[0081] As an embodiment, the benefits of the above method include: controlling the total transmission power of cellular signals and sensing signals to comply with regulatory requirements.

[0082] As an embodiment, the advantages of the above method include: reducing the transmission power of the cellular signal and the sensing signal in equal proportion, and having a simple design.

[0083] As an embodiment, the advantages of the above method include: the second factor is determined by the first node in the present application, which is more flexible.

[0084] According to one aspect of the present application, the above method is characterized in that when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the difference obtained by subtracting the first power value from the third maximum power value.

[0085] As an embodiment, the characteristics of the above method include: ensuring that the total transmission power of the first signal and the second signal is less than the third maximum power value.

[0086] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is greater than a third maximum power value, using the power margin of the third maximum power value after transmitting the first signal to transmit the second signal.

[0087] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is greater than a third maximum power value, power is preferentially allocated to the transmission of the first signal.

[0088] As an embodiment, the benefits of the above method include: taking into account the maximum output power and ensuring the normal operation of the terminal and the system.

[0089] As an embodiment, the benefits of the above method include: preventing the introduction of the sensing signal from affecting cellular communications.

[0090] As an embodiment, the benefits of the above method include: setting a priority for power allocation in the ISAC scenario, that is, allocating power to cellular communications first, thereby ensuring the transmission performance of cellular signals.

[0091] As an embodiment, the benefits of the above method include: ensuring the performance of cellular communications.

[0092] According to one aspect of the present application, the above method is characterized in that, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the second power value is equal to the smaller value of the second reference power value and the target power value, and the first power value is equal to the smaller value of the first reference power value and the difference obtained by subtracting the second power value from the third maximum power value.

[0093] As an embodiment, the characteristics of the above method include: the third maximum power value corresponds to a different mode, waveform or frequency band from the second maximum power value in this application and the first maximum power value in this application.

[0094] As an embodiment, the characteristics of the above method include: the target power value depends on the waveform of the second signal.

[0095] As an embodiment, the characteristics of the above method include: the target power value depends on signaling configuration.

[0096] As an embodiment, the characteristics of the above method include: when the sum of the first reference power value and the second reference power value is greater than a third maximum power value, first determining the second power value and then determining the first power value.

[0097] As an embodiment, the advantages of the above method include: first determining the sensing signal power, and then determining the cellular signal power, thereby ensuring the sensing performance.

[0098] As an embodiment, the above method has the following advantages: providing different modes for cellular signals of different priorities, which is more flexible.

[0099] As an embodiment, the benefits of the above method include: ensuring system performance in an ISAC scenario.

[0100] According to one aspect of the present application, the above method is characterized in that it includes:

[0101] Send a second signal.

[0102] As an embodiment, the characteristics of the above method include: the first node of the present application sends the second signal.

[0103] As an embodiment, the characteristics of the above method include: the first node of the present application receives the echo of the second signal.

[0104] As an embodiment, the characteristics of the above method include: other nodes other than the first node of the present application receive the echo of the second signal.

[0105] As an embodiment, the advantages of the above method include: the terminal sends the perception signal, which is more flexible.

[0106] As an embodiment, the benefits of the above method include: solving the power control problem when the first node in the present application sends a cellular signal and a sensing signal at the same time.

[0107] According to one aspect of the present application, the above method is characterized in that the first node is a user equipment.

[0108] According to one aspect of the present application, the above method is characterized in that the first node is a relay node.

[0109] The present application discloses a method in a second node for wireless communication power control, which includes:

[0110] sending a first reference signal, whereby a receiver of the first reference signal generates a first path loss in response to reception of the first reference signal;

[0111] receiving a first signal;

[0112] Among them, the receiver of the first reference signal determines the transmission power value of the first signal, and determines the transmission power value of the second signal; the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0113] According to one aspect of the present application, the above method is characterized in that it includes:

[0114] sending a second reference signal, where a receiver of the second reference signal generates the second path loss based on reception of the second reference signal; and the second reference power value depends on the second path loss;

[0115] The second reference signal is for downlink transmission.

[0116] According to one aspect of the present application, the above method is characterized in that the first signal is for cellular transmission and the second signal is for perception.

[0117] According to one aspect of the present application, the above method is characterized in that it includes:

[0118] Sending a first signaling;

[0119] The first signaling indicates that the second reference signal and the second signal are QCL.

[0120] According to one aspect of the present application, the above method is characterized in that, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the product of the sum of the first reference power value and the second reference power value and a first factor is not greater than the first maximum power value, and the first power value is equal to the product of the first reference power value and the first factor.

[0121] According to one aspect of the present application, the above method is characterized in that the sum of the first reference power value and the second reference power value is greater than the first maximum power value; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is not greater than a first threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the first factor; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is greater than the first threshold, the second signal is not sent.

[0122] According to one aspect of the present application, the above method is characterized in that, when the sum of the first reference power value and the second reference power value is not greater than the second maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the second maximum power value, the product of the sum of the first reference power value and the second reference power value and the second factor is not greater than the second maximum power value, the first power value is equal to the product of the first reference power value and the second factor, and the second power value is equal to the product of the second reference power value and the second factor.

[0123] According to one aspect of the present application, the above method is characterized in that when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the difference obtained by subtracting the first power value from the third maximum power value.

[0124] According to one aspect of the present application, the above method is characterized in that, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the second power value is equal to the smaller value of the second reference power value and the target power value, and the first power value is equal to the smaller value of the first reference power value and the difference obtained by subtracting the second power value from the third maximum power value.

[0125] According to one aspect of the present application, the above method is characterized in that it includes:

[0126] The receiver of the first reference signal in this application sends a second signal.

[0127] According to one aspect of the present application, the above method is characterized in that the second node is a base station.

[0128] According to one aspect of the present application, the above method is characterized in that the second node is a relay node.

[0129] The present application discloses a first node device used for wireless communication power control, comprising:

[0130] a first receiver, receiving a first reference signal, and generating a first path loss based on reception of the first reference signal;

[0131] a first transmitter, determining a transmission power value of a first signal and transmitting the first signal, and determining a transmission power value of a second signal;

[0132] Among them, the sending power value of the first signal is equal to the first power value; when the second signal is sent, the sending power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0133] The present application discloses a device for a second node used for wireless communication power control, comprising:

[0134] A second transmitter sends a first reference signal, where a receiver of the first reference signal generates a first path loss in response to reception of the first reference signal;

[0135] a second receiver, receiving the first signal;

[0136] Among them, the receiver of the first reference signal determines the transmission power value of the first signal, and determines the transmission power value of the second signal; the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0137] As an embodiment, compared with the traditional solution, the present application has the following advantages but not limited to:

[0138] This application supports ISAC technology. Wireless networks 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, thereby achieving integration gain and collaborative gain.

[0139] While being compatible with current standard power control schemes, it also introduces ISAC-based power control of sensing signals to improve sensing accuracy.

[0140] Optimized ISAC power control, which is based on the total power of the cellular signal and the sensing signal, so that the cellular signal transmission is not affected during the sensing process.

[0141] Provides multiple modes for power control in ISAC scenarios to maximize system performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0142] FIG1 shows a flow chart of first node transmission according to an embodiment of the present application;

[0143] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0144] FIG3 shows a schematic diagram of a wireless protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0145] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0146] FIG5 shows a flow chart of transmission between a first node and a second node according to an embodiment of the present application;

[0147] FIG6 is a schematic diagram showing the relationship between the second reference power value, the second path loss, and the second reference signal according to an embodiment of the present application;

[0148] FIG7 shows a schematic diagram of a first signal and a second signal according to an embodiment of the present application;

[0149] FIG8 is a schematic diagram showing the relationship among the first signaling, the second reference signal, and the second signal according to an embodiment of the present application;

[0150] FIG9 shows a first schematic diagram of values ​​of the first power value and the second power value according to an embodiment of the present application;

[0151] FIG10 shows a second schematic diagram of values ​​of the first power value and the second power value according to an embodiment of the present application;

[0152] FIG11 shows a third schematic diagram of values ​​of the first power value and the second power value according to an embodiment of the present application;

[0153] FIG12 shows a fourth schematic diagram of values ​​of the first power value and the second power value according to an embodiment of the present application;

[0154] FIG13 shows a fifth schematic diagram of values ​​of the first power value and the second power value according to an embodiment of the present application;

[0155] FIG14 shows a schematic diagram of a second signal transmission according to an embodiment of the present application;

[0156] FIG15 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0157] FIG16 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0158] 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 of the present application and the features in the embodiments can be combined with each other arbitrarily.

[0159] Example 1

[0160] Embodiment 1 illustrates a flowchart 100 of first node transmission according to an embodiment of the present application, as shown in FIG1 . In FIG1 , each box represents a step, and it is particularly important to emphasize that the order of the boxes in the figure does not limit the temporal sequence between the steps represented.

[0161] In step 101 , the first node receives a first reference signal and generates a first path loss for the reception of the first reference signal. In step 102 , the first node determines a transmit power value of the first signal and transmits the first signal, and determines a transmit power value of a second signal.

[0162] In embodiment 1, the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0163] As an embodiment, the first reference signal is a downlink reference signal.

[0164] As an embodiment, the first reference signal is a reference signal used for downlink path loss estimation.

[0165] As an embodiment, the first reference signal includes a reference signal used to measure path loss in a 6G system.

[0166] As an embodiment, the first reference signal is one of the reference signals used to measure path loss in a 6G system.

[0167] As an embodiment, the first reference signal occupies one reference signal resource.

[0168] As an embodiment, the first reference signal corresponds to a reference signal resource identifier.

[0169] As an embodiment, the first reference signal corresponds to a path loss reference signal resource identifier.

[0170] As an embodiment, the identifier in this application refers to: Id.

[0171] As an embodiment, the identifier in this application refers to: index.

[0172] As an embodiment, the identifier described in this application refers to: identity.

[0173] As an embodiment, the identifier in this application refers to: identifier.

[0174] As an embodiment, the identification described in this application refers to: identification.

[0175] As an embodiment, the first reference signal is one of CSI-RS and SSB.

[0176] As an embodiment, the first reference signal includes SSB.

[0177] As an embodiment, the first reference signal is SSB.

[0178] As an embodiment, the first reference signal includes a CSI-RS (Channel State Information-Reference signal).

[0179] As an embodiment, the first reference signal is CSI-RS.

[0180] As an embodiment, the first reference signal occupies one CSI-RS resource.

[0181] 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.

[0182] As an embodiment, the first reference signal corresponds to an NZP-CSI-RS-ResourceId.

[0183] As an embodiment, the first reference signal corresponds to an SSB-Index.

[0184] As an embodiment, the first reference signal corresponds to an ssb-Index.

[0185] As an embodiment, the SSB described in this application refers to: Synchronization Signal Block.

[0186] 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.

[0187] Typically, the reception occasions of PBCH, PSS (Primary Synchronization Signal) and SSS (Secondary Synchronization Signal) are in consecutive multi-carrier symbols and form an SS / PBCH block.

[0188] As an embodiment, the first node determines the first path loss by receiving the first reference signal.

[0189] As an embodiment, the first path loss is downstream.

[0190] As an embodiment, the first path loss is a downlink path loss estimate.

[0191] As an embodiment, the first node measures the first reference signal to obtain the first path loss.

[0192] As an embodiment, the first path loss is calculated by the first node using the first reference signal.

[0193] As an embodiment, the first node obtains the first path loss through estimation.

[0194] As an embodiment, the first node determines the first path loss by determining RSRP (Reference Signal Received Power) of the first reference signal.

[0195] As an embodiment, the unit corresponding to the first path loss is dB (deciBel, decibel).

[0196] As an embodiment, the first node obtains the first path loss through the transmit power of the first reference signal and the RSRP value measured by the first reference signal resource.

[0197] As an embodiment, the first path loss is equal to the difference between the RSRP value measured by the first node for the first reference signal resource and the transmit power value of the first reference signal.

[0198] As an embodiment, the first path loss is equal to the ratio between the RSRP value measured by the first node for the first reference signal resource and the transmit power value of the first reference signal.

[0199] As an embodiment, the first signal is a baseband signal.

[0200] As an embodiment, the first signal is a radio frequency signal.

[0201] As an embodiment, the first signal is a wireless signal.

[0202] As an embodiment, the first signal is a reference signal (RS).

[0203] As an embodiment, the first signal is used for cellular transmission.

[0204] As an embodiment, the first signal is used for uplink transmission.

[0205] As an embodiment, the physical layer channel occupied by the first signal includes a PUSCH (Physical Uplink Shared CHannel).

[0206] As an embodiment, the physical layer channel occupied by the first signal includes PUCCH (Physical Uplink Control CHannel, physical uplink control channel).

[0207] As an embodiment, the physical layer channel occupied by the first signal includes PRACH (Physical Random Access CHannel).

[0208] As an embodiment, the resources occupied by the first signal include SRS (Sounding Reference Signal) resources.

[0209] As an embodiment, the first signal includes SRS.

[0210] As an embodiment, the meaning that the second signal is for detection includes: the second signal is for perception.

[0211] As an embodiment, the meaning of the second signal being used for detection includes: the second signal is used for at least one of distance measurement, speed measurement, and angle measurement.

[0212] As an embodiment, the second signal is used for object detection and tracking.

[0213] As an embodiment, the meaning that the second signal is for detection includes: the second signal is for positioning.

[0214] As an embodiment, the meaning that the second signal is for detection includes: the second signal is used for detection.

[0215] As an embodiment, the meaning that the second signal is for detection includes: the second signal is used for sensing.

[0216] As an embodiment, the meaning that the second signal is for detection includes: the second signal is used for positioning.

[0217] As an embodiment, the second signal being used for detection means that the waveform of the second signal is the first waveform.

[0218] As a sub-embodiment of this embodiment, the first waveform is an FMCW (Frequency Modulated Continuous Wave) waveform.

[0219] As a sub-embodiment of this embodiment, the first waveform is a Chirp waveform.

[0220] As a sub-embodiment of this embodiment, the first waveform is a PMCW (Phase Modulated Continuous Wave) waveform.

[0221] As a sub-embodiment of this embodiment, the first waveform is a continuous waveform.

[0222] As a sub-embodiment of this embodiment, the first waveform is a pulse Doppler radar (PDR) waveform.

[0223] As a sub-embodiment of this embodiment, the first waveform is a linear frequency modulation continuous wave (LFMCW) waveform.

[0224] As a sub-embodiment of this embodiment, the first waveform is a step-FMCW waveform.

[0225] As a sub-embodiment of this embodiment, the first waveform is an MFSK (Multiple Frequency Shift Keying) waveform.

[0226] As a sub-embodiment of this embodiment, the first waveform is a fast chirp ramp sequence waveform.

[0227] As an embodiment, the first waveform is a waveform introduced in 5G-Advance (5G-Evolved) and later systems.

[0228] As an embodiment, the first waveform is a waveform introduced in 6G and later systems.

[0229] As an embodiment, the unit of the first power value is dBm (deciBel relative to one milliwatt).

[0230] As an embodiment, the unit of the first power value is mW (milliWatt).

[0231] As an embodiment, the unit of the first power value is W (Watt).

[0232] As an embodiment, when the second signal is not sent, the transmission power value of the second signal is equal to 0.

[0233] As an embodiment, the second signal not being sent in the present application is equivalent to or replaceable with the second power value being 0.

[0234] As an embodiment, the meaning that the first power value depends on the first reference power value includes: the first power value is equal to the first reference power value.

[0235] As an embodiment, the meaning that the first power value depends on the first reference power value includes: the first power value is equal to the product of the first reference power value and a coefficient.

[0236] As a sub-embodiment of this embodiment, the value range of the coefficient is between 0 and 1.

[0237] As an embodiment, the meaning that the first power value depends on the first reference power value includes: the first power value is not greater than the first reference power value.

[0238] As an embodiment, the meaning that the first power value depends on the first reference power value includes: under given conditions, the first power value is equal to the first reference power value.

[0239] As an embodiment, the meaning that the first power value depends on the first reference power value includes: under given conditions, the first power value is equal to the product of the first reference power value and a coefficient.

[0240] As a sub-embodiment of this embodiment, the value range of the coefficient is between 0 and 1.

[0241] As an embodiment, the meaning that the first power value depends on the first reference power value includes: under given conditions, the first power value is equal to the smaller value between the first reference power value and some other power value.

[0242] As an embodiment, the meaning that the first power value depends on a first reference power value includes: the first reference power value is used to determine the first power value.

[0243] As an embodiment, the meaning that the second power value depends on the second reference power value includes: the second reference power value is used to determine the second power value.

[0244] As an embodiment, the second power value being dependent on the second reference power value means that the second power value is not greater than the second reference power value.

[0245] As an embodiment, the second power value being dependent on the second reference power value means that, under given conditions, the second power value is equal to the second reference power value.

[0246] As an embodiment, the second power value being dependent on the second reference power value means that, under given conditions, the second power value is equal to the product of the second reference power value and a coefficient.

[0247] As a sub-embodiment of this embodiment, the value range of the coefficient is between 0 and 1.

[0248] As an embodiment, the second power value being dependent on the second reference power value means that, under given conditions, the second power value is equal to a smaller value between the second reference power value and some other power value.

[0249] As an embodiment, the meaning that the first reference power value depends on the first path loss includes: the first reference power value is linearly correlated with the product of the first path loss and a first coefficient.

[0250] As a sub-embodiment of this embodiment, the value range of the first coefficient is between 0 and 1.

[0251] As an embodiment, the meaning that the first reference power value depends on the first path loss includes: the first reference power value is positively correlated with the first path loss.

[0252] As an embodiment, the meaning that the first reference power value depends on the first path loss includes: the first reference power value is directly proportional to the first path loss.

[0253] As an embodiment, the meaning that the first reference power value depends on the first path loss includes: the first path loss is used to determine the first reference power value.

[0254] As an embodiment, the meaning that the first reference power value depends on the first path loss includes: the first path loss is used to calculate the first reference power value.

[0255] As an embodiment, the meaning that the first reference power value depends on the first path loss includes: under a given path loss compensation factor α, the first reference power value is linearly correlated with the first path loss.

[0256] As an embodiment, the meaning that the first reference power value depends on the first path loss includes: the first reference power value is equal to the smaller value of the product of the first path loss and the first coefficient, the first target power value, the sum of multiple power offsets, and the first upper limit power value.

[0257] As a sub-embodiment of this embodiment, the unit of the first target power value is dBm.

[0258] As a sub-embodiment of this embodiment, the unit of the first target power value is milliwatt.

[0259] As a sub-embodiment of this embodiment, the unit of the first target power value is watt.

[0260] As a sub-embodiment of this embodiment, the first target power value is related to a parameter indicated by RRC (Radio Resource Control) signaling.

[0261] As a sub-embodiment of this embodiment, the first target power value corresponds to P_(O_PUSCH, b, f, c)(j) in the TS 38.213R-18 version standard.

[0262] As a sub-embodiment of this embodiment, the first target power value corresponds to P_(O_SRS,b,f,c)(q_s) in the TS 38.213R-18 version standard.

[0263] As a sub-embodiment of this embodiment, the first target power value corresponds to P_("O_PUCCH,b,"f,c)(q_u) in the TS 38.213R-18 version standard.

[0264] As a sub-embodiment of this embodiment, the first coefficient is a number between 0 and 1.

[0265] As a sub-embodiment of this embodiment, the first coefficient depends on the configuration of RRC signaling.

[0266] As a sub-embodiment of this embodiment, the first coefficient is a path loss compensation factor.

[0267] As a sub-embodiment of this embodiment, the first coefficient depends on part or all of the fields of the IE "PUSCH-PowerControl".

[0268] As a sub-embodiment of this embodiment, the first coefficient depends on part of or all of the fields in IE "Alpha".

[0269] As a sub-embodiment of this embodiment, the first coefficient corresponds to alpha.

[0270] As a sub-embodiment of this embodiment, the first coefficient corresponds to α.

[0271] As a sub-embodiment of this embodiment, the first coefficient value is 1.

[0272] As a sub-embodiment of this embodiment, at least one power offset among the multiple power offsets is related to the number of RBs (resource blocks) occupied by the first signal.

[0273] As a sub-embodiment of this embodiment, at least one power offset among the multiple power offsets is related to whether the first node is indicated with deltaMCS.

[0274] As a sub-embodiment of this embodiment, at least one power offset among the multiple power offsets is related to a TPC Command (Transmit Power Control Command).

[0275] As a sub-embodiment of this embodiment, the multiple power offsets include at least one of 10〖log〗_10(2^μ·M_(RB,b,f,c)^PUSCH(i)), Δ_(TF,b,f,c)(i), and f_(b,f,c)(i,l) in the TS 38.213R-18 version standard.

[0276] As a sub-embodiment of this embodiment, the multiple power offsets include at least one of 10log_10(2^μ·M_(SRS,b,f,c)(i)) and h_(b,f,c)(i,l) in the TS 38.213R-18 version standard.

[0277] As a sub-embodiment of this embodiment, the multiple power offsets include at least one of 10〖log〗_10(2^μ·M_("RB,b,"f,c)^"PUCCH"(i)), Δ_"F_PUCCH"(F), Δ_("TF,b,"f,c)(i), and g_("b,"f,c)(i,l) in the TS 38.213R-18 version standard.

[0278] As a sub-embodiment of this embodiment, the first upper limit power value is P_(CMAX,f,c)(i).

[0279] As a sub-embodiment of this embodiment, the first upper limit power value is the maximum power value supported by the first signal.

[0280] As a sub-embodiment of this embodiment, the value range of the first upper limit power value is a closed interval.

[0281] As a sub-embodiment of this embodiment, the first upper limit power value depends on the power class of the first node.

[0282] As a sub-embodiment of this embodiment, the first upper limit power value depends on signaling configuration.

[0283] As a sub-embodiment of this embodiment, the first upper limit power value depends on a frequency band in which the first signal is located.

[0284] As a sub-embodiment of this embodiment, the first upper limit power value depends on the capability of the first node.

[0285] As a sub-embodiment of this embodiment, the first upper limit power value depends on the waveform of the first signal.

[0286] As a sub-embodiment of this embodiment, the first upper limit power value depends on the modulation mode of the first signal.

[0287] As a sub-embodiment of this embodiment, the first upper limit power value depends on the position of the frequency domain of the first signal in the maximum channel bandwidth.

[0288] As a sub-embodiment of this embodiment, the value range of the first upper limit power value depends on at least one of the power class of the first node, the signaling configuration, the frequency band of the first signal, the capability of the first node, the waveform of the first signal, the modulation method of the first signal, and the position of the frequency domain of the first signal in the maximum channel bandwidth in this application.

[0289] As an embodiment, the first signal is for cellular link transmission, and the second signal is for perception.

[0290] As an embodiment, the first signal is for transmission of a Uu link, and the second signal is for transmission of a sensing link.

[0291] As an embodiment, the first signal is used to transmit a data channel, and the second signal is used to transmit a signal for detection.

[0292] As an embodiment, the first signal is used to transmit a control channel, and the second signal is used to transmit a signal for detection.

[0293] As an embodiment, when the second signal is sent, the time domain resources occupied by the first signal and the time domain resources occupied by the second signal overlap.

[0294] As an embodiment, when the second signal is not sent, the time domain resources occupied by the first signal and the time domain resources reserved for transmission of the second signal overlap.

[0295] As an embodiment, the overlap of two time domain resources means that at least one multi-carrier symbol belongs to the two time domain resources at the same time.

[0296] As an embodiment, the overlap of two time domain resources means that at least one multi-carrier symbol is occupied by both the first signal and the second signal.

[0297] As an embodiment, the first signal and the second signal occupy the same frequency domain resources.

[0298] As an embodiment, the first signal and the second signal occupy different frequency domain resources.

[0299] As an embodiment, the first signal and the second signal occupy mutually orthogonal frequency domain resources.

[0300] As a sub-embodiment of this embodiment, the multi-carrier symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0301] As a sub-embodiment of this embodiment, the multi-carrier symbol is a DFT-s-OFDM (Discrete Fourier Transform Spread Orthogonal Frequency Division Multiplexing) symbol.

[0302] As a sub-embodiment of this embodiment, the multi-carrier symbol is a CP-OFDM (Cyclic Prefix-OFDM) symbol.

[0303] As a sub-embodiment of this embodiment, the multi-carrier symbol is one of an FBMC (Filter Bank Multi Carrier) symbol, a UFMC (Universal Filtered Multi Carrier) symbol, a F-OFDM (Filtered-OFDM) symbol, and an OCDM-OFDM (Orthogonal Chirp Division Multiplexing-OFDM) symbol.

[0304] As an embodiment, the first maximum power value corresponds to P_Total.

[0305] As an embodiment, the first maximum power value corresponds to P_Total^ISAC.

[0306] As an embodiment, the unit of the first maximum power value is W.

[0307] As an embodiment, the unit of the first maximum power value is mW.

[0308] As an embodiment, the unit of the first maximum power value is dBm.

[0309] As an embodiment, the first maximum power value depends on the configured maximum output power.

[0310] As an embodiment, the value range of the first maximum power value is a closed interval.

[0311] As an embodiment, the first maximum power value depends on a power class of the first node.

[0312] As an embodiment, the first maximum power value depends on the configuration of RRC signaling.

[0313] As an embodiment, the first maximum power value depends on the frequency band in which the first signal is located.

[0314] As an embodiment, the first maximum power value depends on the frequency band in which the second signal is located.

[0315] As an embodiment, the first maximum power value depends on the capability of the first node.

[0316] As an embodiment, the first maximum power value depends on the waveform of the first signal.

[0317] As an embodiment, the first maximum power value depends on the waveform of the second signal.

[0318] As an embodiment, the first maximum power value depends on the modulation mode of the first signal.

[0319] As an embodiment, the first maximum power value depends on the limit and standard of SAR (Specific Absorption Rate) test.

[0320] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that the second power value takes different values ​​when the sum of the first reference power value and the second reference power value is greater than the first maximum power value and less than or equal to the first maximum power value.

[0321] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value.

[0322] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the second power value is not equal to the second reference power value.

[0323] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the second power value is 0.

[0324] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the second signal is not sent.

[0325] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the first node reduces the transmission power of the second signal.

[0326] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the second power value is less than the second reference power value.

[0327] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the first node automatically reduces the second power value so that the sum of the first reference power value and the second power value is less than or equal to the first maximum power value.

[0328] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, when the product of the sum of the first reference power value and the second reference power value and a certain scaling factor is less than or equal to the first maximum power value, the second power value is equal to the product of the second reference power value and the certain scaling factor.

[0329] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, and the product of the sum of the first reference power value and the second reference power value and a certain scaling factor is less than or equal to the first maximum power value, whether the second signal is sent depends on the difference between the second reference power value and the product of the certain scaling factor and the second reference power value.

[0330] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, and the product of the sum of the first reference power value and the second reference power value and a certain scaling factor is less than or equal to the first maximum power value, whether the second signal is sent depends on the relationship between the difference between the second reference power value and the product of the certain scaling factor and the second reference power value and a certain threshold.

[0331] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, and the product of the sum of the first reference power value and the second reference power value and a certain scaling factor is less than or equal to the first maximum power value, when the product of the second reference power value minus the certain scaling factor and the second reference power value is greater than a certain threshold, the second signal is not sent; when the product of the second reference power value minus the certain scaling factor and the second reference power value is not greater than a certain threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the certain scaling factor.

[0332] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the second power value is equal to the difference between the second reference power value and the first maximum power value minus the first power value.

[0333] As an embodiment, the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value, which means that: when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the second power value is equal to the smaller value of the second reference power value and another power value.

[0334] As an embodiment, the first power value also depends on whether the sum of the first reference power value and the second reference power value is greater than a first maximum power value.

[0335] As an embodiment, when the sum of the first reference power value and the second reference power value is less than or equal to the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value.

[0336] As an embodiment, when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is less than the second reference power value.

[0337] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the product of the sum of the first reference power value and the second reference power value and a certain factor is not greater than the first maximum power value, the first power value is equal to the product of the first reference power value and the certain factor, and the second power value is equal to the product of the second reference power value and the certain factor.

[0338] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the difference obtained by subtracting the first power value from the first maximum power value.

[0339] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the second power value is equal to the smaller value of the second reference power value and a certain power value, and the first power value is equal to the smaller value of the first reference power value and the difference obtained by subtracting the second power value from the first maximum power value.

[0340] Example 2

[0341] Example 2 illustrates a schematic diagram of a network architecture according to the present application, as shown in FIG2 .

[0342] FIG2 illustrates a network architecture 200. The network architecture 200 is the network architecture for LTE (Long-Term Evolution), LTE-A (Long-Term Evolution Advanced), 5G systems, 5G-Advanced, and future 6G systems. The network architecture for LTE, LTE-A, 5G systems, 5G-Advanced, and future 6G systems is referred to as EPS (Evolved Packet System). The 5G NR or LTE network architecture may be referred to as 5GS (5G System) / EPS or some other suitable terminology; the 6G network architecture may be referred to as 6GS (6G System) / EPS or some other suitable terminology. The network architecture 200 may include one or more UEs 201, a Next Generation Radio Access Network (RAN) 202, a core network 210, a Home Subscriber Server (HSS) / Unified Data Management (UDM) 220, and Internet services 230. The network architecture 200 can interconnect with other access networks, but for simplicity these entities / interfaces are not shown. As shown in FIG2 , the network architecture 200 provides packet-switched services, however, those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services. The RAN 202 includes a Node B 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards the UE 201. Node 203 can be connected to the other nodes 204 via an Xn interface (e.g., backhaul). Node 203 may also be referred to as a base station, a base transceiver station, a radio base station, a radio transceiver, a transceiver function, a Basic Service Set (BSS), an Extended Service Set (ESS), a Transmitter Receiver Point (TRP), or some other appropriate terminology. Node 203 provides an access point to the core network 210 for UE 201; the core network 210 is 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is 6GC.Examples of UE 201 include a cellular phone, a smartphone, a Session Initiation Protocol (SIP) phone, a laptop computer, a personal digital assistant (PDA), a satellite radio, a global positioning system, a multimedia device, a video device, a digital audio player (e.g., an MP3 player), a camera, a game console, a drone, an aircraft, a narrowband physical network device, a machine type communication device, a land vehicle, an automobile, a wearable device, or any other similarly functional device. Those skilled in the art may also refer to UE 201 as a mobile station, a subscriber station, a mobile unit, a subscriber unit, a wireless unit, a remote unit, a mobile device, a wireless device, a wireless communication device, a remote device, a mobile subscriber station, an access terminal, a mobile terminal, a wireless terminal, a remote terminal, a handset, a user agent, a mobile client, a client, or some other suitable term. Node 203 is connected to core network 210 via an S1 / NG interface. The core network 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) 211, other MMEs / AMFs / SMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF 211 is the control node that handles signaling between the UE 201 and the 5G-CN / EPC 210. Generally, the MME / AMF / SMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-specific Internet protocol services, which may include the Internet, intranet, IMS (IP Multimedia Subsystem), and packet switching services.

[0343] As an embodiment, the first node in the present application includes the UE 201.

[0344] As an embodiment, the second node in the present application includes the node 203.

[0345] As an embodiment, the node 203 is a macro cell base station.

[0346] As an embodiment, the node 203 is a micro cell base station.

[0347] As an embodiment, the node 203 is a pico cell base station.

[0348] As an embodiment, the node 203 is a home base station (Femtocell).

[0349] As an embodiment, the node 203 is a base station device that supports a large delay difference.

[0350] As an embodiment, the node 203 is a flying platform device.

[0351] As an embodiment, the node 203 is a satellite device.

[0352] As an embodiment, the node 203 is a test device (eg, a transceiver that simulates some functions of a base station, a signaling tester).

[0353] As an embodiment, the UE 201 includes a mobile phone.

[0354] As an embodiment, the UE 201 is a vehicle including a car.

[0355] 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.

[0356] 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.

[0357] As an embodiment, the wireless link between the node 203 and the UE 201 includes a cellular network link.

[0358] As an embodiment, the node 203 and the UE 201 are connected via a Uu air interface.

[0359] As an embodiment, the sender of the first signaling in this application includes the node 203.

[0360] As an embodiment, the recipient of the first signaling in the present application includes the UE 201.

[0361] As an embodiment, the sender of the first reference signal in the present application includes the node 203.

[0362] As an embodiment, the receiver of the first reference signal in the present application includes the UE 201.

[0363] As an embodiment, the sender of the second reference signal in the present application includes the node 203.

[0364] As an embodiment, the receiver of the second reference signal in the present application includes the UE 201.

[0365] As an embodiment, the sender of the first signal in the present application includes the UE 201.

[0366] As an embodiment, the receiver of the first signal in the present application includes the node 203.

[0367] As an embodiment, the sender of the second signal in the present application includes the UE 201.

[0368] As an embodiment, the receiver of the second signal in the present application includes the UE 201.

[0369] As an embodiment, the receiver of the second signal in the present application includes the node 203.

[0370] As an embodiment, the UE 201 supports LPP (LTE positioning protocol).

[0371] As an embodiment, the UE 201 supports NRPP (NR Positioning Protocol).

[0372] As an embodiment, the UE 201 supports NRPPa (NR Positioning Protocol A).

[0373] As an embodiment, the UE 201 supports SPP (Sensing Positioning Protocol).

[0374] As an embodiment, the node 203 supports ISAC.

[0375] As an embodiment, the UE 201 supports ISAC.

[0376] As an embodiment, the node 203 at least supports the TRP monostatic (single station) perception model.

[0377] As an embodiment, the UE 201 at least supports the UE monostatic perception model.

[0378] As an embodiment, the node 203 at least supports a TRP-UE bistatic (dual station) perception model.

[0379] As an embodiment, the UE 201 at least supports the TRP-UE bistatic perception model.

[0380] As an embodiment, the node 203 at least supports the UE-TRP bistatic perception model.

[0381] As an embodiment, the UE 201 at least supports the UE-TRP bistatic perception model.

[0382] As an embodiment, the node 203 at least supports the TRP-TRP bistatic perception model.

[0383] As an embodiment, the UE 201 at least supports the UE-UE bistatic perception model.

[0384] As an embodiment, the UE 201 supports a 5G system.

[0385] As an embodiment, the node 203 supports a 5G system.

[0386] As an embodiment, the UE 201 supports at least the 6G system.

[0387] As an embodiment, the node 203 supports at least a 6G system.

[0388] Example 3

[0389] Embodiment 3 illustrates a schematic diagram 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 .

[0390] 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 Service Data Adaptation Protocol (SDAP) sublayer 356, which is responsible for mapping QoS (Quality of Service) flows to data radio bearers (D resource blocks) 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.).

[0391] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0392] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0393] As an embodiment, the first signal is generated by the RRC 306.

[0394] As an embodiment, the first signal is generated by the MAC 302 or MAC 352.

[0395] As an embodiment, the first signal is generated by the PHY 301 or PHY 351 .

[0396] As an embodiment, the first signaling in this application is generated by the MAC 302 or MAC 352.

[0397] As an embodiment, the first signaling in this application is generated by the PHY 301 or PHY 351.

[0398] As an embodiment, the second signal in this application is generated by the PHY 301 or PHY 351.

[0399] As an embodiment, the higher layer in this application refers to a layer above the physical layer.

[0400] As an embodiment, the higher layer in the present application includes a MAC layer.

[0401] As an embodiment, the higher layer in the present application includes an RRC layer.

[0402] Example 4

[0403] 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.

[0404] 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 .

[0405] 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 .

[0406] 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.

[0407] 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.

[0408] 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.

[0409] 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.

[0410] 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, generates a first path loss for the reception of the first reference signal, determines a transmit power value of the first signal and transmits the first signal, and determines a transmit power value of the second signal; the transmit power value of the first signal is equal to the first power value; when the second signal is transmitted, the transmit power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are respectively transmitted for different purposes; the second signal in the first and second signals is for detection; the time domain resources occupied by the first signal overlap with the time domain resources configured for transmitting the second signal; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than a first maximum power value.

[0411] 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.

[0412] As an embodiment, the first communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The first communication device 410 at least transmits a first reference signal and receives a first signal; the recipient of the first reference signal includes the second communication device 450, 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 determines a transmit power value of the first signal and a transmit power value of a second signal; the transmit power value of the first signal is equal to a first power value; when the second signal is transmitted, the transmit power value of the second signal is equal to a second power value; the first power value depends on a first reference power value, the first reference power value depends on the first path loss; the second power value depends on a second reference power value; the first signal and the second signal are respectively transmitted for different purposes; the second signal in the first and second signals is for detection; the time domain resources occupied by the first signal overlap with the time domain resources configured for transmitting the second signal; and the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than a first maximum power value.

[0413] As an embodiment, the first communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, and the actions include: sending a first reference signal; receiving a first signal.

[0414] As an embodiment, the first node in this application includes the second communication device 450.

[0415] As an embodiment, the second node in this application includes the first communication device 410.

[0416] 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.

[0417] 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.

[0418] 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.

[0419] As an embodiment, at least one of {the antenna 420, the transmitter 418, the transmit processor 416, the multi-antenna transmit processor 471, the controller / processor 475, and the memory 476} is used to send the first signaling; and at least one of {the antenna 452, the receiver 454, the receive processor 456, the multi-antenna receive processor 458, the controller / processor 459, the memory 460, and the data source 467} is used to receive the first signaling.

[0420] 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, the data source 467} is used to send a second signal.

[0421] Example 5

[0422] Example 5 illustrates a flow chart of transmission between a first node and a second node according to an embodiment of the present application, as shown in FIG5 . In FIG5 , the first node U1 and the second node N2 communicate via a wireless link, and the steps in blocks 51 and 52 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.

[0423] For the first node U1, a first reference signal is received in step S510; a second reference signal is received in step S5110; a first signaling is received in step S5120; and a first signal is sent in step S511.

[0424] For the second node N2, a first reference signal is sent in step S520; a second reference signal is sent in step S5210; a first signaling is sent in step S5220; and a first signal is received in step S521.

[0425] In embodiment 5, the first node U1 generates a first path loss for reception of the first reference signal, determines a transmission power value of the first signal, and determines a transmission power value of the second signal; the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0426] As an embodiment, the first node U1 is the first node in this application.

[0427] As an embodiment, the second node N2 is the second node in this application.

[0428] 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.

[0429] 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.

[0430] As an embodiment, the second node N2 and the first node U1 communicate with each other via a Uu interface.

[0431] As an embodiment, the second node N2 is a base station maintaining a service cell of the first node U1.

[0432] As an embodiment, the first signal is transmitted on a physical layer control channel (only used to transmit physical layer signaling).

[0433] As an embodiment, the first signal is transmitted on a physical layer data channel (used to transmit user data).

[0434] As an embodiment, step S511 is performed after step S510.

[0435] As an embodiment, step S521 is performed after step S520.

[0436] As an embodiment, the steps in box F51 in Figure 5 exist; the method applied to the first node U1 in the present application includes: receiving a second reference signal, generating the second path loss based on the reception of the second reference signal; the second reference power value depends on the second path loss; the second reference signal is for downlink transmission.

[0437] As a sub-embodiment of this embodiment, step S5110 is before step S510; step S5210 is before step S520.

[0438] As a sub-embodiment of this embodiment, step S5110 is after step S510; and step S5210 is after step S520.

[0439] As an embodiment, the step in block F51 in FIG. 5 does not exist.

[0440] 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; the first signaling indicates that the second reference signal and the second signal are QCL.

[0441] 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 .

[0442] As a sub-embodiment of this embodiment, step S5120 is before step S510; step S5220 is before step S520.

[0443] As a sub-embodiment of this embodiment, step S5120 is after step S510; and step S5220 is after step S520.

[0444] As a sub-embodiment of this embodiment, step S5120 is before step S5110; step S5220 is before step S5110.

[0445] As a sub-embodiment of this embodiment, step S5120 is after step S5110; step S5220 is after step S5110.

[0446] As an embodiment, the step in block 52 of FIG. 5 does not exist.

[0447] Example 6

[0448] Embodiment 6 illustrates a schematic diagram of the relationship between the second reference power value, the second path loss, and the second reference signal according to an embodiment of the present application, as shown in Figure 6. In Figure 6, the second path loss is generated for reception of the second reference signal, and the second reference power value depends on the second path loss.

[0449] In embodiment 6, the first receiver receives a second reference signal and generates the second path loss based on the reception of the second reference signal; the second reference power value depends on the second path loss; wherein the second reference signal is for downlink transmission.

[0450] As an embodiment, the second reference signal is a downlink reference signal.

[0451] As an embodiment, the second reference signal is a reference signal used for downlink path loss estimation.

[0452] As an embodiment, the second reference signal includes a reference signal used to measure path loss in a 6G system.

[0453] As an embodiment, the second reference signal is one of the reference signals used to measure path loss in a 6G system.

[0454] As an embodiment, the second reference signal occupies one reference signal resource.

[0455] As an embodiment, the second reference signal corresponds to a reference signal resource identifier.

[0456] As an embodiment, the second reference signal corresponds to a path loss reference signal resource identifier.

[0457] As an embodiment, the second reference signal is one of CSI-RS and SSB.

[0458] As an embodiment, the second reference signal includes SSB.

[0459] As an embodiment, the second reference signal is SSB.

[0460] As an embodiment, the second reference signal includes CSI-RS.

[0461] As an embodiment, the second reference signal is a CSI-RS.

[0462] As an embodiment, the second reference signal occupies one CSI-RS resource.

[0463] As an embodiment, the second reference signal occupies one NZP-CSI-RS resource.

[0464] As an embodiment, the second reference signal corresponds to an SSB-Index.

[0465] As an embodiment, the second reference signal corresponds to an ssb-Index.

[0466] As an embodiment, the second reference signal corresponds to an NZP-CSI-RS-ResourceId.

[0467] As an embodiment, the second path loss is downstream.

[0468] As an embodiment, the second path loss is a downlink path loss estimate.

[0469] As an embodiment, the first node measures the second reference signal to obtain the second path loss.

[0470] As an embodiment, the second path loss is calculated by the first node using the second reference signal.

[0471] As an embodiment, the first node obtains the second path loss through estimation.

[0472] As an embodiment, the first node determines the second path loss by receiving the second reference signal.

[0473] As an embodiment, the first node determines the second path loss by determining the RSRP of the second reference signal.

[0474] As an embodiment, the first node obtains the first path loss through the transmit power of the second reference signal and the RSRP value measured by the second reference signal resource.

[0475] As an embodiment, the second path loss is equal to the difference between an RSRP (Reference Signal Received Power) value measured by the first node for the second reference signal resource and a transmit power value of the second reference signal.

[0476] As an embodiment, the second path loss is equal to the ratio between an RSRP (Reference Signal Received Power) value measured by the first node for the second reference signal resource and a transmit power value of the second reference signal.

[0477] As an embodiment, the unit corresponding to the second path loss is dB.

[0478] As an embodiment, the second reference power value being dependent on the second path loss means that the second reference power value is linearly correlated with the product of the second path loss and a second coefficient.

[0479] As a sub-embodiment of this embodiment, the value range of the second coefficient is between 0 and 1.

[0480] As an embodiment, the second reference power value being dependent on the second path loss means that the second reference power value is positively correlated with the second path loss.

[0481] As an embodiment, the second reference power value being dependent on the second path loss means that the second reference power value is directly proportional to the second path loss.

[0482] As an embodiment, the second reference power value being dependent on the second path loss means that the second path loss is used to determine the second reference power value.

[0483] As an embodiment, the second reference power value being dependent on the first path loss means that the second path loss is used to calculate the second reference power value.

[0484] As an embodiment, the second reference power value being dependent on the second path loss means that, under a given path loss compensation factor α, the second reference power value is linearly correlated with the second path loss.

[0485] As an embodiment, the second reference power value being dependent on the second path loss means that the second reference power value is equal to the smaller value of the sum of the second path loss and the second target power value, and the second upper limit power value.

[0486] As a sub-embodiment of this embodiment, the unit of the second target power value is dBm.

[0487] As a sub-embodiment of this embodiment, the unit of the second target power value is milliwatt.

[0488] As a sub-embodiment of this embodiment, the unit of the second target power value is watt.

[0489] As a sub-embodiment of this embodiment, the second target power value is related to a parameter indicated by RRC signaling.

[0490] As a sub-embodiment of this embodiment, the second target power value depends on the waveform of the second signal.

[0491] As a sub-embodiment of this embodiment, the second target power value depends on the bandwidth of the second signal.

[0492] As a sub-embodiment of this embodiment, the second upper limit power value is P_(CMAX,f,c)(i).

[0493] As a sub-embodiment of this embodiment, the second upper limit power value is P_(CMAX, Sensing).

[0494] As a sub-embodiment of this embodiment, the second upper limit power value is the maximum power value supported by the second signal.

[0495] As a sub-embodiment of this embodiment, the second upper limit power value is a maximum power value used for perceptual signal transmission.

[0496] As a sub-embodiment of this embodiment, the second upper limit power value is a configured maximum power value for perception signal transmission.

[0497] As a sub-embodiment of this embodiment, the second upper limit power value is a maximum transmission power value that the first node can use to send the perception signal.

[0498] As a sub-embodiment of this embodiment, the value range of the second upper limit power value is a closed interval.

[0499] As a sub-embodiment of this embodiment, the second upper limit power value depends on the power class of the first node in this application.

[0500] As a sub-embodiment of this embodiment, the second upper limit power value depends on signaling configuration.

[0501] As a sub-embodiment of this embodiment, the second upper limit power value depends on a frequency band in which the second signal is located.

[0502] As a sub-embodiment of this embodiment, the second upper limit power value depends on the capability of the first node.

[0503] As a sub-embodiment of this embodiment, the second upper limit power value depends on the waveform of the second signal.

[0504] As a sub-embodiment of this embodiment, the second upper limit power value depends on the position of the frequency domain of the second signal in the maximum channel bandwidth.

[0505] As a sub-embodiment of this embodiment, the value range of the second upper limit power value depends on at least one of the power class (Power class) of the first node, the signaling configuration, the frequency band (band) in which the second signal is located, the capability (capability) of the first node, the waveform (waveform) of the second signal, and the position of the frequency domain of the second signal in the maximum channel bandwidth in this application.

[0506] As an embodiment, the meaning that the second reference signal is for downlink transmission includes: the second reference signal is used to measure the path loss of downlink transmission.

[0507] As an embodiment, the meaning that the second reference signal is for downlink transmission includes: the second reference signal is for obtaining channel state information of downlink transmission.

[0508] As an embodiment, the meaning that the second reference signal is for downlink transmission includes: the second reference signal is for obtaining a spatial reception parameter of a downlink signal.

[0509] Example 7

[0510] Embodiment 7 illustrates a schematic diagram of a first signal and a second signal according to an embodiment of the present application, as shown in FIG7. In FIG7, the first signal is for cellular transmission, and the second signal is for sensing.

[0511] In embodiment 7, the first signal is for cellular transmission, and the second signal is for perception.

[0512] As an embodiment, the first signal is an uplink signal for cellular transmission.

[0513] As an embodiment, the first signal is a cellular uplink signal.

[0514] As an embodiment, the first signal is transmitted via PUSCH, PUCCH or PRACH.

[0515] As an embodiment, the first signal is an SRS.

[0516] As an embodiment, the first signal is a 6G uplink signal other than the above.

[0517] As an embodiment, the second signal is a perception signal.

[0518] As an embodiment, the second signal is a radar signal.

[0519] Example 8

[0520] Embodiment 8 illustrates a schematic diagram of the relationship among the first signaling, the second reference signal, and the second signal according to an embodiment of the present application, as shown in FIG8 . In FIG8 , .

[0521] In embodiment 8, the first receiver in the present application receives first signaling; wherein the first signaling indicates that the second reference signal and the second signal are QCL.

[0522] As an embodiment, the first signaling includes DCI (downlink control information).

[0523] As an embodiment, the first signaling includes part of or all of the fields in DCI format 1_N, where N is a non-negative integer.

[0524] As an embodiment, the physical layer channel occupied by the first signaling includes PDCCH.

[0525] As an embodiment, the first signaling includes MAC signaling.

[0526] As an embodiment, the first signaling includes a MAC CE (Control Element).

[0527] As an embodiment, the first signaling explicitly or implicitly indicates that the second reference signal and the second signal are QCL.

[0528] As an embodiment, the first signaling indicates that the second reference signal and the second signal correspond to the same TCI.

[0529] As an embodiment, the first signaling indicates that the second reference signal and the second signal correspond to the same TCI-State.

[0530] As an embodiment, the second reference signal and the second 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 second signal.

[0531] As an embodiment, the second reference signal and the second signal being QCL means that the same spatial relationship is used for receiving the second reference signal and sending the second signal.

[0532] As an embodiment, the second reference signal and the second signal being QCL means that the second reference signal and the second signal correspond to the same spatial reception parameters.

[0533] As an embodiment, the second reference signal and the second signal are QCL, which means that the second reference signal and the second signal correspond to the same spatial transmission parameters.

[0534] As an embodiment, the second reference signal and the second signal being QCL mean that: the spatial relationship of the second reference signal is associated with a candidate reference signal resource set, and the second signal and a candidate reference signal in the candidate reference signal resource set are QCL.

[0535] As an embodiment, the second reference signal and the second signal are QCL, which means that the second reference signal and the second signal are QCL with the same reference signal resource.

[0536] As an embodiment, the meaning that the second reference signal and the second signal are QCL includes: the second reference signal and the second signal correspond to the same TCI (Transmission Configuration Indicator).

[0537] As an embodiment, the second reference signal and the second signal being QCL means that the second reference signal and the second signal correspond to the same TCI-State.

[0538] As an embodiment, the second reference signal and the second signal are QCL, which means that the second reference signal and the second signal correspond to the same TCI-StateId.

[0539] As an embodiment, the second reference signal and the second signal being QCL means that the second reference signal and the second signal correspond to the same large-scale properties.

[0540] As an embodiment, the second reference signal and the second 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 second signal, or the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second 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.

[0541] As an embodiment, the second reference signal and the second 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 second signal, and the large-scale characteristics of the channel of the symbols transmitted on the antenna port used by the second 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.

[0542] As an embodiment, the large-scale characteristics described in this application include one or more of delay spread, Doppler spread, Doppler shift, average delay, or spatial Rx parameter.

[0543] As an embodiment, the QCL described in this application refers to Quasi Co-Location.

[0544] As an embodiment, the QCL described in this application refers to: Quasi Co-Located.

[0545] As an embodiment, the QCL described in this application includes: QCL parameters.

[0546] As an embodiment, the QCL described in this application includes: a QCL assumption.

[0547] As an embodiment, the QCL types described in this application include typeA, typeB, typeC and typeD.

[0548] As an embodiment, the QCL described in the present application includes: at least one of: Doppler shift, Doppler spread, average delay, delay spread, spatial Tx parameter or spatial Rx parameter.

[0549] As an embodiment, the specific definitions of typeA, typeB, typeC and typeD in this application refer to clause 5.1.5 of 3GPP TS (Technical Specification) 38.214.

[0550] As an embodiment, a TCI state described in the present application indicates at least one reference signal resource.

[0551] As an embodiment, any reference signal resource indicated by a TCI state described in this application is one of an SRS resource, a CSI-RS resource or an SSB.

[0552] Example 9

[0553] Example 9 illustrates a first schematic diagram of the values ​​of the first power value and the second power value according to an embodiment of the present application, as shown in Figure 9. In Figure 9, P_1, P_2, P_1^', P_2^', α, and P_Total represent the first power value, the second power value, the first reference power value, the second reference power value, the first factor, and the first maximum power value, respectively.

[0554] In Example 9, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the product of the sum of the first reference power value and the second reference power value and a first factor is not greater than the first maximum power value, and the first power value is equal to the product of the first reference power value and the first factor.

[0555] As an embodiment, the first maximum power value is a linear value of a maximum transmission power value when the configured perception signal and cellular signal are transmitted simultaneously.

[0556] As an embodiment, the first maximum power value is a maximum transmission power value when the configured perception signal and cellular signal are transmitted simultaneously.

[0557] As an embodiment, the first maximum power value is related to the waveform of the second signal.

[0558] As an embodiment, the waveform of the second signal is used to determine the first maximum power value.

[0559] As an embodiment, the first node determines the first factor by itself.

[0560] As an embodiment, the first node implements related determination of the first factor.

[0561] As an embodiment, the first node calculates the first factor based on the first maximum power value, the first reference power value, and the second reference power value.

[0562] As an embodiment, the first node determining the first factor is implementation-related and is not defined by the standard.

[0563] As an embodiment, the product of the sum of the first reference power value and the second reference power value and the first factor is equal to the first maximum power value.

[0564] Example 10

[0565] Embodiment 10 illustrates a second schematic diagram of the values ​​of the first power value and the second power value according to an embodiment of the present application, as shown in Figure 10. In Figure 10, P_2, P_2^', α, and X represent the second power value, the second reference power value, the first factor, and the first threshold, respectively.

[0566] In embodiment 10, the sum of the first reference power value and the second reference power value is greater than the first maximum power value; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is not greater than a first threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the first factor; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is greater than the first threshold, the second signal is not sent.

[0567] As an embodiment, there are multiple candidate values ​​for the first threshold.

[0568] As an embodiment, the first threshold is fixed.

[0569] As an embodiment, the first threshold is configured by RRC signaling.

[0570] As a sub-embodiment of this embodiment, the RRC signaling includes part of or all of the fields in the IE "CellGroupConfig".

[0571] As a sub-embodiment of this embodiment, the RRC signaling includes part of or all of the fields in the IE "PhysicalCellGroupConfig".

[0572] As a sub-embodiment of this embodiment, when the RRC signaling does not configure the first threshold, the first threshold has a default value.

[0573] As an embodiment, the first threshold is 6dB by default.

[0574] As an embodiment, the unit of the first threshold is dB.

[0575] As an embodiment, the unit of the first threshold is W.

[0576] As an embodiment, the unit of the first threshold is mW.

[0577] As an embodiment, when the product of the second reference power value and the first factor is less than a second threshold, the second signal is not sent; when the product of the second reference power value and the first factor is greater than or equal to the second threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the first factor.

[0578] As a sub-embodiment of this embodiment, the second threshold is a minimum power value allowed to send the second signal.

[0579] As a sub-embodiment of this embodiment, the second threshold is a configured minimum transmit power of the perception signal.

[0580] As a sub-embodiment of this embodiment, the second threshold depends on the waveform of the second signal.

[0581] As a sub-embodiment of this embodiment, the second threshold is fixed.

[0582] As a sub-embodiment of this embodiment, the second threshold is configured by RRC signaling.

[0583] As a sub-embodiment of this embodiment, the unit of the second threshold is dB.

[0584] As a sub-embodiment of this embodiment, the unit of the second threshold is W.

[0585] As a sub-embodiment of this embodiment, the unit of the second threshold is mW.

[0586] Example 11

[0587] Embodiment 11 illustrates a third schematic diagram of the values ​​of the first power value and the second power value according to an embodiment of the present application, as shown in FIG11. In FIG11, P_1, P_2, P_1^', P_2^', β, and P_Total2 respectively represent the first power value, the second power value, the first reference power value, the second reference power value, the second factor, and the second maximum power value.

[0588] In Example 11, when the sum of the first reference power value and the second reference power value is not greater than the second maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the second maximum power value, the product of the sum of the first reference power value and the second reference power value and the second factor is not greater than the second maximum power value, the first power value is equal to the product of the first reference power value and the second factor, and the second power value is equal to the product of the second reference power value and the second factor.

[0589] As an embodiment, the second maximum power value is a linear value of a maximum transmission power value when the configured perception signal and cellular signal are transmitted simultaneously.

[0590] As an embodiment, the second maximum power value is a maximum transmission power value when the configured perception signal and cellular signal are transmitted simultaneously.

[0591] As an embodiment, the second maximum power value is related to the waveform of the second signal.

[0592] As an embodiment, the waveform of the second signal is used to determine the second maximum power value.

[0593] As an embodiment, the unit of the second maximum power value is dBm.

[0594] As an embodiment, the unit of the second maximum power value is milliwatt.

[0595] As an embodiment, the unit of the second maximum power value is watt.

[0596] As an embodiment, the second maximum power value corresponds to P_Total.

[0597] As an embodiment, the second maximum power value corresponds to P_Total^ISAC.

[0598] As an embodiment, the unit of the second maximum power value is W.

[0599] As an embodiment, the second maximum power value depends on the configured maximum output power.

[0600] As an embodiment, the value range of the second maximum power value is a closed interval.

[0601] As an embodiment, the second maximum power value depends on the power class of the first node.

[0602] As an embodiment, the second maximum power value depends on the configuration of RRC signaling.

[0603] As an embodiment, the second maximum power value depends on the frequency band in which the first signal is located.

[0604] As an embodiment, the second maximum power value depends on the frequency band in which the second signal is located.

[0605] As an embodiment, the second maximum power value depends on the capability of the first node.

[0606] As an embodiment, the second maximum power value depends on the waveform of the first signal.

[0607] As an embodiment, the second maximum power value depends on the waveform of the second signal.

[0608] As an embodiment, the second maximum power value depends on the modulation mode of the first signal.

[0609] As an embodiment, the second maximum power value depends on the limit and standard of SAR (Specific Absorption Rate) test.

[0610] As an embodiment, the first node determines the second factor by itself.

[0611] As an embodiment, the first node implements the related determination of the second factor.

[0612] As an embodiment, the determination of the second factor by the first node is implementation-dependent and is not defined by the standard.

[0613] As an embodiment, the first node calculates the second factor based on the second maximum power value, the first reference power value, and the second reference power value.

[0614] As an embodiment, the product of the sum of the first reference power value and the second reference power value and the second factor is equal to the second maximum power value.

[0615] As an embodiment, the first maximum power value and the second maximum power value correspond to two different modes respectively.

[0616] As an embodiment, the first maximum power value and the second maximum power value respectively correspond to two different FRs occupied by the second signal.

[0617] As an embodiment, the first maximum power value and the second maximum power value respectively correspond to two different carriers occupied by the second signal.

[0618] As an embodiment, the first maximum power value and the second power value respectively correspond to different power levels of the first node.

[0619] As an embodiment, the first maximum power value and the second maximum power value correspond to different combinations of access technologies adopted by the first signal and the second signal, respectively.

[0620] Example 12

[0621] Embodiment 12 illustrates a fourth schematic diagram of the values ​​of the first power value and the second power value according to an embodiment of the present application, as shown in FIG12. In FIG12, P_1, P_2, P_1^', P_2^', and P_Total3 respectively represent the first power value, the second power value, the first reference power value, the second reference power value, and the third maximum power value.

[0622] In Example 12, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the difference obtained by subtracting the first power value from the third maximum power value.

[0623] As an embodiment, the third maximum power value is a linear value of a maximum transmission power value when the configured perception signal and cellular signal are transmitted simultaneously.

[0624] As an embodiment, the third maximum power value is a maximum transmission power value when the configured perception signal and cellular signal are transmitted simultaneously.

[0625] As an embodiment, the third maximum power value is related to the waveform of the second signal.

[0626] As an embodiment, the waveform of the second signal is used to determine the third maximum power value.

[0627] As an embodiment, the unit of the third maximum power value is dBm.

[0628] As an embodiment, the unit of the third maximum power value is milliwatt.

[0629] As an embodiment, the unit of the third maximum power value is watt.

[0630] As an embodiment, the third maximum power value corresponds to P_Total.

[0631] As an embodiment, the third maximum power value corresponds to P_Total^ISAC.

[0632] As an embodiment, the unit of the third maximum power value is W.

[0633] As an embodiment, the third maximum power value depends on the configured maximum output power.

[0634] As an embodiment, the value range of the third maximum power value is a closed interval.

[0635] As an embodiment, the third maximum power value depends on the power class of the first node.

[0636] As an embodiment, the third maximum power value depends on the configuration of RRC signaling.

[0637] As an embodiment, the third maximum power value depends on the frequency band in which the first signal is located.

[0638] As an embodiment, the third maximum power value depends on the frequency band in which the second signal is located.

[0639] As an embodiment, the third maximum power value depends on the capability of the first node.

[0640] As an embodiment, the third maximum power value depends on the waveform of the first signal.

[0641] As an embodiment, the third maximum power value depends on the waveform of the second signal.

[0642] As an embodiment, the third maximum power value depends on the modulation mode of the first signal.

[0643] As an embodiment, the third maximum power value depends on the limit and standard of SAR (Specific Absorption Rate) test.

[0644] As an embodiment, the first maximum power value in this application, the second maximum power value in this application, and the third maximum power value correspond to three different modes respectively.

[0645] As an embodiment, the first maximum power value in the present application, the second maximum power value and the third maximum power value in the present application respectively correspond to three different FRs occupied by the second signal.

[0646] As an embodiment, the first maximum power value in the present application, the second maximum power value in the present application, and the third maximum power value respectively correspond to three different carriers occupied by the second signal.

[0647] As an embodiment, the first maximum power value in this application, the second maximum power value in this application, and the third maximum power value in this application respectively correspond to three different power levels of the first node.

[0648] As an embodiment, the first maximum power value in this application, the second maximum power value in this application, and the third maximum power value correspond to different combinations of access technologies adopted by the first signal and the second signal, respectively.

[0649] Example 13

[0650] Example 13 illustrates a fifth schematic diagram of the values ​​of the first power value and the second power value according to an embodiment of the present application, as shown in Figure 13. In Figure 13, P_1, P_2, P_1^', P_2^', P_3^', and P_Total3 respectively represent the first power value, the second power value, the first reference power value, the second reference power value, the target power value, and the third maximum power value, and min() represents the smaller value of the two.

[0651] In Example 13, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the second power value is equal to the smaller value of the second reference power value and the target power value, and the first power value is equal to the smaller value of the first reference power value and the difference obtained by subtracting the second power value from the third maximum power value.

[0652] As an embodiment, the target power value is predefined.

[0653] As an embodiment, the target power value is related to the type of the second signal.

[0654] As an embodiment, the target power value is related to a waveform used to generate the second signal.

[0655] As an embodiment, the target power value depends on the configuration of RRC signaling.

[0656] As an embodiment, the unit of the target power value is dBm.

[0657] As an embodiment, the unit of the target power value is W.

[0658] As an embodiment, the unit of the target power value is mW.

[0659] Example 14

[0660] Embodiment 14 illustrates a schematic diagram of second signal transmission according to an embodiment of the present application, as shown in FIG14. In FIG14, the first node transmits the second signal, and the echo of the second signal after being reflected, refracted or diffracted by the target node is received by the first node.

[0661] In embodiment 14, the first transmitter in the present application sends a second signal.

[0662] As an embodiment, the first transmitter in this application is the first node in this application.

[0663] As an embodiment, a guard band exists between the frequency domain resources occupied by the first signal and the frequency domain resources occupied by the second signal in the present application.

[0664] As an embodiment, the frequency domain resources occupied by the first signal and the frequency domain resources occupied by the second signal in the present application belong to different carriers respectively.

[0665] As an embodiment, the frequency domain resources occupied by the first signal and the frequency domain resources occupied by the second signal in the present application are respectively sent through two different RFs.

[0666] As an embodiment, the frequency domain resources occupied by the first signal and the frequency domain resources occupied by the second signal in the present application are respectively sent through two different panels.

[0667] As an embodiment, the first node receives the second signal.

[0668] As an embodiment, a node other than the first node receives the second signal; as a subsidiary embodiment of this embodiment, the advantage of doing so is greater flexibility.

[0669] As an embodiment, the first node receives an echo of the second signal after being reflected, refracted or diffracted by the target node.

[0670] As an embodiment, the node other than the first node receives the echo of the second signal after being reflected, refracted or diffracted by the target node.

[0671] As an embodiment, the target node is a perceived object.

[0672] As an embodiment, the target node is the second node in this application.

[0673] As an embodiment, the target node is a node other than the second node in this application.

[0674] As an embodiment, the second signal is received by the first node in this application after being echoed by the sensed object.

[0675] As an embodiment, the second signal is received by a node other than the first node in the present application after being echoed by the sensed object.

[0676] Example 15

[0677] Embodiment 15 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG15 . In FIG15 , the processing device 1500 in the first node includes a first receiver 1501 and a first transmitter 1502 .

[0678] In embodiment 15, the first receiver 1501 receives a first reference signal and generates a first path loss for reception of the first reference signal; the first transmitter 1502 determines a transmit power value of the first signal and transmits the first signal, and determines a transmit power value of the second signal.

[0679] In Example 15, the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0680] As an embodiment, the first receiver 1501 receives a second reference signal, and generates the second path loss based on the reception of the second reference signal; the second reference power value depends on the second path loss; and the second reference signal is for downlink transmission.

[0681] As an embodiment, the first signal is for cellular transmission, and the second signal is for perception.

[0682] As an embodiment, the first receiver 1501 receives first signaling; the first signaling indicates that the second reference signal and the second signal are QCL.

[0683] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the product of the sum of the first reference power value and the second reference power value and a first factor is not greater than the first maximum power value, and the first power value is equal to the product of the first reference power value and the first factor.

[0684] As an embodiment, the sum of the first reference power value and the second reference power value is greater than the first maximum power value; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is not greater than a first threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the first factor; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is greater than the first threshold, the second signal is not sent.

[0685] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the second maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the second maximum power value, the product of the sum of the first reference power value and the second reference power value and the second factor is not greater than the second maximum power value, the first power value is equal to the product of the first reference power value and the second factor, and the second power value is equal to the product of the second reference power value and the second factor.

[0686] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the difference obtained by subtracting the first power value from the third maximum power value.

[0687] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the second power value is equal to the smaller value of the second reference power value and the target power value, and the first power value is equal to the smaller value of the first reference power value and the difference obtained by subtracting the second power value from the third maximum power value.

[0688] As an embodiment, the first transmitter 1502 sends a second signal.

[0689] As an embodiment, the first node is user equipment.

[0690] As an embodiment, the first node is a relay node device.

[0691] As an embodiment, the first receiver 1501 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.

[0692] As an embodiment, the first transmitter 1502 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.

[0693] Example 16

[0694] Embodiment 16 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG16 . In FIG16 , the processing device 1600 in the second node includes a second transmitter 1601 and a second receiver 1602 .

[0695] In embodiment 16, the second transmitter 1601 transmits a first reference signal, and a receiver of the first reference signal generates a first path loss in response to reception of the first reference signal; the second receiver 1602 receives the first signal;

[0696] In embodiment 16, the receiver of the first reference signal determines the transmission power value of the first signal, and determines the transmission power value of the second signal; the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

[0697] As an embodiment, the second transmitter 1601 sends a second reference signal, and a receiver of the second reference signal generates the second path loss based on the reception of the second reference signal; the second reference power value depends on the second path loss; and the second reference signal is for downlink transmission.

[0698] As an embodiment, the first signal is for cellular transmission, and the second signal is for perception.

[0699] As an embodiment, the second transmitter 1601 sends a first signaling; the first signaling indicates that the second reference signal and the second signal are QCL.

[0700] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the product of the sum of the first reference power value and the second reference power value and a first factor is not greater than the first maximum power value, and the first power value is equal to the product of the first reference power value and the first factor.

[0701] As an embodiment, the sum of the first reference power value and the second reference power value is greater than the first maximum power value; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is not greater than a first threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the first factor; when the difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is greater than the first threshold, the second signal is not sent.

[0702] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the second maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the second maximum power value, the product of the sum of the first reference power value and the second reference power value and the second factor is not greater than the second maximum power value, the first power value is equal to the product of the first reference power value and the second factor, and the second power value is equal to the product of the second reference power value and the second factor.

[0703] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the difference obtained by subtracting the first power value from the third maximum power value.

[0704] As an embodiment, when the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the second power value is equal to the smaller value of the second reference power value and the target power value, and the first power value is equal to the smaller value of the first reference power value and the difference obtained by subtracting the second power value from the third maximum power value.

[0705] As an embodiment, the sender of the first signal sends the second signal.

[0706] As an embodiment, the second node is a base station device.

[0707] As an embodiment, the second node is a relay node device.

[0708] As an embodiment, the second transmitter 1601 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.

[0709] As an embodiment, the second receiver 1602 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 Example 4.

[0710] 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.

[0711] 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, determining a transmission power value of a first signal and transmitting the first signal, and determining a transmission power value of a second signal; Among them, the sending power value of the first signal is equal to the first power value; when the second signal is sent, the sending power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

2. The first node according to claim 1, wherein: include: The first receiver receives a second reference signal and generates the second path loss based on reception of the second reference signal; The second reference power value depends on the second path loss; The second reference signal is for downlink transmission.

3. The first node according to claim 1 or 2, characterized in that The first signal is for cellular transmission, and the second signal is for sensing.

4. The first node according to claim 2 or 3, characterized in that: include: The first receiver receives a first signaling; The first signaling indicates that the second reference signal and the second signal are QCL.

5. The first node according to any one of claims 1 to 4, characterized in that: When the sum of the first reference power value and the second reference power value is not greater than the first maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the first maximum power value, the product of the sum of the first reference power value and the second reference power value and the first factor is not greater than the first maximum power value, and the first power value is equal to the product of the first reference power value and the first factor.

6. The first node according to claim 5, characterized in that The sum of the first reference power value and the second reference power value is greater than the first maximum power value; when a difference obtained by subtracting the product of the second reference power value and the first factor from the second reference power value is not greater than a first threshold, the second signal is sent, and the second power value is equal to the product of the second reference power value and the first factor; When a difference obtained by subtracting a product of the second reference power value and the first factor from the second reference power value is greater than a first threshold, the second signal is not sent.

7. The first node according to any one of claims 1 to 4, characterized in that: When the sum of the first reference power value and the second reference power value is not greater than the second maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the second maximum power value, the product of the sum of the first reference power value and the second reference power value and the second factor is not greater than the second maximum power value, the first power value is equal to the product of the first reference power value and the second factor, and the second power value is equal to the product of the second reference power value and the second factor.

8. The first node according to any one of claims 1 to 4, characterized in that: When the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the difference obtained by subtracting the first power value from the third maximum power value.

9. The first node according to any one of claims 1 to 4, characterized in that: When the sum of the first reference power value and the second reference power value is not greater than the third maximum power value, the first power value is equal to the first reference power value, and the second power value is equal to the second reference power value; when the sum of the first reference power value and the second reference power value is greater than the third maximum power value, the second power value is equal to the smaller value of the second reference power value and the target power value, and the first power value is equal to the smaller value of the first reference power value and the difference obtained by subtracting the second power value from the third maximum power value.

10. The first node according to any one of claims 1 to 9, characterized in that: include: The first transmitter sends a second signal.

11. A second node used for wireless communication power control, characterized in that: include: A second transmitter sends a first reference signal, where a receiver of the first reference signal generates a first path loss in response to reception of the first reference signal; a second receiver, receiving the first signal; Among them, the receiver of the first reference signal determines the transmission power value of the first signal, and determines the transmission power value of the second signal; the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

12. 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; determining a transmit power value of a first signal and transmitting the first signal, and determining a transmit power value of a second signal; Among them, the sending power value of the first signal is equal to the first power value; when the second signal is sent, the sending power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

13. A method for a second node used for wireless communication power control, characterized in that: include: sending a first reference signal, whereby a receiver of the first reference signal generates a first path loss in response to reception of the first reference signal; receiving a first signal; Among them, the receiver of the first reference signal determines the transmission power value of the first signal, and determines the transmission power value of the second signal; the transmission power value of the first signal is equal to the first power value; when the second signal is sent, the transmission power value of the second signal is equal to the second power value; the first power value depends on the first reference power value, and the first reference power value depends on the first path loss; the second power value depends on the second reference power value; the first signal and the second signal are for different transmissions respectively; the second signal in the first signal and the second signal is for detection; the time domain resources occupied by the first signal and the time domain resources configured for transmitting the second signal overlap; the second power value depends on whether the sum of the first reference power value and the second reference power value is greater than the first maximum power value.

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