Signal transmission method and apparatus, and signal reception method and apparatus

Abstract

The present application provides a signal transmission method and apparatus, and a signal reception method and apparatus. The signal transmission method comprises: determining the transmit power of a first signal, the transmit power of the first signal being determined by one or more of the following items, and said one or more of the following items comprising: a required power, a converted power, or a receiving antenna threshold power, the required power referring to a power determined to meet a requirement, the converted power being determined by converting a transmit power of a second signal on the basis of the ratio of frequency domain resources of the first signal to frequency domain resources of the second signal, and on the basis of a first power adjustment factor, and the receiving antenna threshold power being a maximum transmit power determined on the basis of a receive power threshold of a receiving antenna; and transmitting the first signal on the basis of the transmit power of the first signal. By using the present application, power control can be performed on a sensing signal transmitted by a terminal device.

Description

A signal transmission method, a signal reception method, and an apparatus

[0001] This application claims priority to Chinese Patent Application No. 202410917633.2, filed on July 9, 2024, entitled “A Signal Transmission Method, Receiving Method and Apparatus”, the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a signal transmission method, a signal reception method, and an apparatus. Background Technology

[0003] Communication refers to the transmission of information between two or more points, while sensing refers to the detection of parameters of the physical environment, such as ranging and speed measurement. Integrated sensing and communications (ISAC) combines the two functions of communication and sensing, enabling the communication system to simultaneously possess both communication and sensing capabilities. While transmitting information over a wireless channel, it actively recognizes and analyzes the characteristics of the channel to perceive the physical features of the surrounding environment, thereby enhancing the communication and sensing functions.

[0004] In a scenario of integrated sensing and communication, some resources intended for communication can be allocated to terminal devices for sensing. The terminal devices then transmit sensing signals on these allocated or designated resources to perform sensing. However, this resource allocation method has the following problems: the terminal devices remain within the communication system, and if the power of the sensing signals transmitted by the terminal devices is not controlled by the network devices, it can easily affect the communication of other terminal devices and network devices in the cellular communication system. Therefore, how to control the power of the sensing signals transmitted by the terminal devices is a technical problem that those skilled in the art are currently addressing. Summary of the Invention

[0005] This application proposes a signal transmission method, a receiving method, and an apparatus that can perform power control on sensing signals transmitted by terminal devices.

[0006] In a first aspect, embodiments of this application provide a signal transmission method. This method can be applied to a terminal device, including execution by the terminal device itself, execution by components within the terminal device (e.g., processors, chips, circuits, or chip systems), or execution by a logic module or software capable of implementing all or part of the terminal device's functions. The method includes: determining the transmission power of a first signal, the transmission power of the first signal being determined by one or more of the following, including: required power, converted power, or receiving antenna threshold power. The required power refers to the power determined to meet a requirement. The converted power is determined based on the ratio of the frequency domain resources of the first signal and the second signal, and is also determined based on a first power adjustment factor. The receiving antenna threshold power is the maximum transmission power determined according to the receiving power threshold of the receiving antenna. The first signal is transmitted based on the transmission power of the first signal.

[0007] In the above method, when determining the transmission power of the first signal, if it is determined based on the required power, it can meet the service requirements; if it is determined based on the converted power, it can avoid communication system interference; if it is determined based on the receiving antenna threshold power, it can protect the device to a certain extent. In short, the determination of the transmission power of the first signal takes into account factors such as service requirements, avoiding communication system interference, and protecting the device, thereby controlling the power of the first signal.

[0008] In one possible implementation, the first signal is used for sensing, and the second signal is used for communication.

[0009] In another possible implementation, the first signal is used for one or more of the following purposes, including: detecting the presence of a target, detecting the position of the target and / or the distance to the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target. It is understood that "detection" can also be replaced by "identification," "determination," or "calculation," etc., and this application is not limited thereto.

[0010] In another possible implementation, the second signal is used for one or more of the following purposes, including: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission.

[0011] Specifically, when the second signal is used to measure channel state, it can be a channel sounding reference signal; when the second signal is used for channel demodulation, it can be a demodulation reference signal; when the second signal is used for cell access, it can be a preamble sequence or a physical uplink shared channel scheduled by downlink control information, wherein the cyclic redundancy check of the downlink control information is scrambled by the temporary cell radio network temporary identifier; when the second signal is used to carry control information transmission, it can be scheduling request information, channel state information, hybrid automatic repeat request, or physical uplink control channel; when the second signal is used to carry data information transmission, it can be a physical uplink shared channel.

[0012] In another possible implementation, the transmission power of the first signal is determined by one or more of the following, including the maximum transmission power of the first signal; wherein the maximum transmission power of the first signal differs from the maximum transmission power of the second signal, and the maximum transmission power of the first signal is determined based on one or more of the following, including: the capability of the terminal device, the operating frequency of the first signal, or the modulation method of the first signal. Implementation limitations may also be included.

[0013] In the above method, the transmission power of the first signal can also be determined based on the maximum transmission power of the first signal, thereby protecting the device.

[0014] In another possible implementation, the first power adjustment factor is determined by the terminal device or other terminal or network devices.

[0015] In another possible implementation, the required power is determined based on the perceived service.

[0016] The above methods can meet the needs of perception services.

[0017] In another possible implementation, the required power is determined based on the service distance and / or the received signal-to-interference-plus-noise ratio (SIN / NNR); the service distance or the received SIN / NNR is determined based on the capabilities of the terminal device and / or use case requirements. Optionally, the service distance can be a perceived distance. Optionally, the received SIN / NNR can also be a signal-to-noise ratio (SNR), or a signal-to-interference-plus-noise ratio (SINR).

[0018] Optionally, the required power may also be determined based on one or more of the following, including: average noise power, path loss, or a second adjustment factor. The noise corresponding to the average noise power may include one or more of the following: thermal noise, channel noise, or signal noise. Path loss may be the propagation loss from the terminal device to the sensing target, from the sensing target to the terminal device or other terminal devices or network devices, and the loss caused by the reflection of the first signal from the sensing target. The second power adjustment factor may be determined by the terminal device or other terminal devices or network devices. Optionally, other terminal devices may be receiving terminal devices for the sensing signal.

[0019] In another possible implementation, the required power is determined by the terminal device according to the first rule, or indicated by the network device, or predefined by the protocol.

[0020] In another possible implementation, the first rule includes one or more of the following: determining the required power based on an initial value; determining whether the required power meets the service requirements; or determining whether the required power is greater than the maximum transmission power of the first signal.

[0021] In another possible implementation, the method further includes: if it is determined that the required power does not meet the service requirement, increasing the required power by a first power step size; or, if it is determined that the required power is greater than the maximum transmission power of the first signal, decreasing the required power by a second power step size. Optionally, the first power step size may be equal to the second power step size.

[0022] The above method enables dynamic adjustment of power demand, thereby determining a more suitable power demand.

[0023] In another possible implementation, the required power is determined by the terminal device according to a first rule, including: the required power is a power that does not exceed the maximum transmission power of the first signal; or, the required power is a power that does not exceed the maximum transmission power of the first signal and meets the service requirements. In this way, both service requirements can be met and devices can be protected.

[0024] In another possible implementation, the second signal is determined by one or more of the following methods, which include: the second signal is the signal that is closest to the first signal in the time domain; the time domain distance between the second signal and the first signal is less than or less than and equal to a first threshold value; the second signal and the first signal have the same frequency domain bandwidth; the second signal and the first signal occupy the same number of frequency domain resource units; the second signal and the first signal are transmitted using the same antenna port; or the second signal and the first signal use the same beam.

[0025] In another possible implementation, the receive antenna threshold power is determined based on one or more of the following, including: the loss between the transmit and receive antennas, the isolation between the transmit and receive antennas, or the receive power threshold.

[0026] In another possible implementation, the first signal is a signal dedicated to sensing, or the first signal is not used for communication.

[0027] Secondly, embodiments of this application provide a signal transmission method, which can be applied to a terminal device. This method can be executed by the terminal device itself, by components within the terminal device (e.g., processors, chips, circuits, or chip systems), or by a logic module or software capable of implementing all or part of the terminal device's functions. The method includes: receiving first configuration information, which is used to configure periodic resources; the periodic resources are used to transmit a first signal and a second signal; transmitting the first signal on the first resource based on a first power; transmitting the second signal on the second resource based on a second power, wherein the first power and the second power are different, and the first resource and the second resource are resources within the periodic resources; the first signal is used for sensing, and the second signal is used for communication.

[0028] In the above method, the power of the sensing signal sent by the terminal device can be controlled in the above manner.

[0029] In one possible implementation, the first signal is used for one or more of the following purposes: detecting the presence of a target, detecting the position of the target and / or the distance to the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target. It is understood that "detection" can also be replaced by "identification," "determination," or "calculation," etc., and this application is not limited thereto.

[0030] In another possible implementation, the second signal is used for one or more of the following purposes, including: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission.

[0031] In another possible implementation, the method further includes: sending first information associated with the first signal, the first information being used to determine the transmission power of the first signal, the first information including: the expected transmission power of the first signal; and / or a first request message for requesting adjustment of the transmission power of the first signal; and / or a second request message for requesting transmission of the first signal.

[0032] In another possible implementation, the first information is associated with the first signal, including one or more of the following: the first signal is a signal transmitted on the most recent periodic resource after the first information; the first signal is the most recent second signal after the first information; MN < C*P, where M is the time-domain position of the first information, N is the time-domain position of the first signal, P is the period of the periodic resource, and C is a positive integer greater than or equal to 1; MN = offset1, where M is the time-domain position of the first information, N is the time-domain position of the first signal, and offset1 is a first offset value; or, M2 - N = offset2, where M2 is the time-domain position of the second information, N is the time-domain position of the first signal, and offset2 is a second offset value. Optionally, M2 - M ≤ offset3, where offset3 is a third offset value.

[0033] Optionally, the time domain location of the first information, the first signal, or the second signal can be understood as the time slot where the first information, the first signal, or the second signal is located.

[0034] Optionally, offset1, offset2, or offset3 can be configured by higher-layer signaling, such as radio resource control signaling or radio media access control element (MACCE), or indicated by dynamic signaling, such as downlink control information; offset1, offset2, or offset3 can be the number of time units of offset, such as several time slots or several milliseconds.

[0035] In another possible implementation, the expected transmission power of the first signal is the transmission power of the first signal.

[0036] In the above method, by sending the first information through the terminal device, unnecessary power control by the network device can be avoided, reducing overhead. Furthermore, the network device can avoid adjusting the transmission power of the second signal used for communication based on the transmission power of the first signal used for sensing, which would lead to inaccurate measurements by the network device.

[0037] In another possible implementation, the method further includes receiving second information, which is used to respond to the first information.

[0038] In another possible implementation, the second information includes one or more of the following: confirming or rejecting the expected transmission power of the first signal; confirming or rejecting adjusting the transmission power of the first signal; confirming or rejecting the transmission of the first signal; confirming or rejecting the transmission of the first signal at a transmission power not exceeding the maximum transmission power of the first signal, or rejecting the transmission of the first signal; the power adjustment value of the first signal; the maximum transmission power of the first signal; or first indication information used to indicate the second signal.

[0039] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol.

[0040] In the above method, a negotiation mechanism between network devices and terminal devices is added, which can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurements by network devices.

[0041] In another possible implementation, the method further includes: determining the transmission power of the first signal based on the second information.

[0042] In another possible implementation, determining the transmission power of the first signal based on the second information includes: determining the transmission power of the first signal based on the expected transmission power of the first signal and / or the power adjustment value of the first signal; or determining the transmission power of the first signal based on the first indication information; or calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first signal and the second signal and determining the transmission power of the first signal based on the first power adjustment factor, wherein the transmission power of the first signal does not exceed the maximum transmission power of the first signal.

[0043] In the above method, the transmission power of the first signal, determined through the negotiation mechanism between the network device and the terminal device, can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurement by the network device.

[0044] In another possible implementation, the method further includes: determining the transmission power of the first signal based on a third power adjustment factor, which is determined by the terminal device or other terminal devices or network devices.

[0045] In another possible implementation, the method further includes receiving second configuration information, which is used to indicate a first resource in the periodic resources.

[0046] In another possible implementation, the second configuration information includes: the transmission period of the first resource and / or the time-domain offset value of the first resource.

[0047] In another possible implementation, the method further includes transmitting the first signal at a power not exceeding the maximum transmission power of the first signal.

[0048] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol.

[0049] In another possible implementation, the method further includes sending third information, which includes: service requirement information and / or terminal device capability information.

[0050] Thirdly, embodiments of this application provide a signal receiving method, which can be applied to a network device. This method can be executed by the network device itself, by components within the network device (e.g., processors, chips, circuits, or chip systems), or by a logic module or software capable of implementing all or part of the network device's functions. The method includes: sending first configuration information for configuring periodic resources; receiving a third signal on a first resource based on a third power, the third signal being a signal reflected back from a sensing target by the first signal; receiving a second signal on a second resource based on a fourth power, the third power being different from the fourth power, the first resource and the second resource being resources within the periodic resources; the first signal being used for sensing, and the second signal being used for communication.

[0051] In the above method, the power of the sensing signal sent by the terminal device can be controlled in the above manner.

[0052] In one possible implementation, the first signal is used for one or more of the following purposes, including: detecting the presence of a target, detecting the position of the target and / or the distance to the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target.

[0053] In another possible implementation, the second signal is used for one or more of the following purposes, including: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission.

[0054] In another possible implementation, the method further includes: receiving first information associated with the first signal, the first information being used to determine the transmission power of the first signal, the first information including: the expected transmission power of the first signal; and / or a first request message for requesting adjustment of the transmission power of the first signal; and / or a second request message for requesting transmission of the first signal.

[0055] In the above method, unnecessary power control by the network device can be avoided, reducing overhead. Furthermore, the network device can avoid adjusting the transmission power of the second signal used for communication based on the transmission power of the first signal used for sensing, which would lead to inaccurate measurements by the network device.

[0056] In another possible implementation, the first information is associated with the first signal, including one or more of the following: the first signal is a signal transmitted on the most recent periodic resource after the first information; the first signal is the most recent second signal after the first information; MN < C*P, where M is the time-domain position of the first information, N is the time-domain position of the first signal, P is the period of the periodic resource, and C is a positive integer greater than or equal to 1; MN = offset1, where M is the time-domain position of the first information, N is the time-domain position of the first signal, and offset1 is a first offset value; or, M2 - N = offset2, where M2 is the time-domain position of the second information, N is the time-domain position of the first signal, and offset2 is a second offset value. Optionally, M2 - M ≤ offset3, where offset3 is a third offset value.

[0057] In another possible implementation, the expected transmission power of the first signal is the transmission power of the first signal.

[0058] In another possible implementation, the method further includes sending a second message in response to the first message.

[0059] In another possible implementation, the second information includes one or more of the following: confirming or rejecting the expected transmission power of the first signal; confirming or rejecting adjusting the transmission power of the first signal; confirming or rejecting the transmission of the first signal; confirming or rejecting the transmission of the first signal at a transmission power not exceeding the maximum transmission power of the first signal, or rejecting the transmission of the first signal; the power adjustment value of the first signal; the maximum transmission power of the first signal; or first indication information used to indicate the second signal.

[0060] In the above method, a negotiation mechanism between network devices and terminal devices is added, which can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurements by network devices.

[0061] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol.

[0062] In another possible implementation, the method further includes sending second configuration information, which is used to indicate a first resource in the periodic resource.

[0063] In another possible implementation, the second configuration information includes: the transmission period of the first resource and / or the time-domain offset value of the first resource.

[0064] In another possible implementation, the method further includes receiving the first signal at a power not exceeding the maximum transmission power of the first signal.

[0065] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol.

[0066] In another possible implementation, the method further includes receiving third information, which includes: service requirement information and / or terminal device capability information.

[0067] Fourthly, embodiments of this application provide a signal transmitting device, which can be a terminal device, a component in the terminal device (e.g., a processor, chip, circuit, or chip system), or a logic module or software that can implement all or part of the functions of the terminal device.

[0068] In one possible implementation, the signal transmitting device may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions described in the first aspect. These modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0069] In one possible implementation, the signal transmitting device includes a processing unit and a transceiver unit. The processing unit is configured to determine the transmission power of a first signal, which is determined by one or more of the following: required power, calculated power, or receiving antenna threshold power. The required power refers to the power determined to meet a requirement. The calculated power is determined by calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first signal and the second signal, and based on a first power adjustment factor. The receiving antenna threshold power is the maximum transmission power determined according to the receiving power threshold of the receiving antenna. The transceiver unit is configured to transmit the first signal based on the transmission power of the first signal.

[0070] In one possible implementation, the first signal is used for sensing, and the second signal is used for communication.

[0071] In another possible implementation, the first signal is used for one or more of the following purposes, including: detecting the presence of a target, detecting the position of the target and / or the distance from the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target.

[0072] In another possible implementation, the second signal is used for one or more of the following purposes, including: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission.

[0073] In another possible implementation, the transmission power of the first signal is determined by one or more of the following, including the maximum transmission power of the first signal; wherein the maximum transmission power of the first signal differs from the maximum transmission power of the second signal, and the maximum transmission power of the first signal is determined based on one or more of the following, including: the capability of the terminal device, the operating frequency of the first signal, or the modulation method of the first signal. Implementation limitations may also be included.

[0074] In another possible implementation, the first power adjustment factor is determined by the terminal device or other terminal or network devices.

[0075] In another possible implementation, the required power is determined based on the perceived service.

[0076] In another possible implementation, the required power is determined based on the service distance and / or the received signal-to-interference-plus-noise ratio (SINNR); the service distance or the SINNR is determined based on the capabilities of the terminal device and / or use case requirements.

[0077] In another possible implementation, the required power is determined by the terminal device according to the first rule, or indicated by the network device, or predefined by the protocol.

[0078] In another possible implementation, the first rule includes one or more of the following: determining the required power based on an initial value; determining whether the required power meets the service requirements; or determining whether the required power is greater than the maximum transmission power of the first signal.

[0079] In another possible implementation, the processing unit is further configured to increase the required power by a first power step size when it is determined that the required power does not meet the service requirement, or to decrease the required power by a second power step size when it is determined that the required power is greater than the maximum transmission power of the first signal.

[0080] In another possible implementation, the required power is determined by the terminal device according to a first rule, including: the required power is a power that does not exceed the maximum transmission power of the first signal, or the required power is a power that does not exceed the maximum transmission power of the first signal and meets the service requirements.

[0081] In another possible implementation, the second signal is determined by one or more of the following methods, which include: the second signal is the signal that is closest to the first signal in the time domain; the time domain distance between the second signal and the first signal is less than or less than and equal to a first threshold value; the second signal and the first signal have the same frequency domain bandwidth; the second signal and the first signal occupy the same number of frequency domain resource units; the second signal and the first signal are transmitted using the same antenna port; or the second signal and the first signal use the same beam.

[0082] In another possible implementation, the receive antenna threshold power is determined based on one or more of the following, including: the loss between the transmit and receive antennas, the isolation between the transmit and receive antennas, or the receive power threshold.

[0083] In another possible implementation, the first signal is a signal dedicated to sensing, or the first signal is not used for communication.

[0084] For the technical effects of the fourth aspect or possible implementation, please refer to the introduction of the technical effects of the first aspect or corresponding implementation.

[0085] Fifthly, embodiments of this application provide a signal transmitting device, which can be a terminal device, a component in the terminal device (e.g., a processor, chip, circuit, or chip system), or a logic module or software that can implement all or part of the functions of the terminal device.

[0086] In one possible implementation, the signal transmitting device may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions described in the second aspect. These modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0087] In one possible implementation, the signal transmitting device includes: a processing unit and a transceiver unit. The transceiver unit is configured to receive first configuration information for configuring periodic resources; the periodic resources are used to transmit a first signal and a second signal; the transceiver unit is configured to transmit the first signal on the first resource based on a first power; the transceiver unit is configured to transmit the second signal on the second resource based on a second power, wherein the first power and the second power are different, and the first resource and the second resource are resources within the periodic resources; the first signal is used for sensing, and the second signal is used for communication.

[0088] In one possible implementation, the first signal is used for one or more of the following purposes, including: detecting the presence of a target, detecting the position of the target and / or the distance to the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target.

[0089] In another possible implementation, the second signal is used for one or more of the following purposes, including: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission.

[0090] In another possible implementation, the transceiver unit is further configured to transmit first information associated with the first signal, the first information being used to determine the transmission power of the first signal, the first information including: the expected transmission power of the first signal; and / or a first request message for requesting adjustment of the transmission power of the first signal; and / or a second request message for requesting transmission of the first signal.

[0091] In another possible implementation, the first information is associated with the first signal, including one or more of the following: the first signal is a signal transmitted on the most recent periodic resource after the first information; the first signal is the most recent second signal after the first information; MN < C*P, where M is the time-domain position of the first information, N is the time-domain position of the first signal, P is the period of the periodic resource, and C is a positive integer greater than or equal to 1; MN = offset1, where M is the time-domain position of the first information, N is the time-domain position of the first signal, and offset1 is a first offset value; or, M2 - N = offset2, where M2 is the time-domain position of the second information, N is the time-domain position of the first signal, and offset2 is a second offset value. Optionally, M2 - M ≤ offset3, where offset3 is a third offset value.

[0092] In another possible implementation, the expected transmission power of the first signal is the transmission power of the first signal.

[0093] In another possible implementation, the transceiver unit is also used to receive second information, which is used to respond to the first information.

[0094] In another possible implementation, the second information includes one or more of the following: confirming or rejecting the expected transmission power of the first signal; confirming or rejecting adjusting the transmission power of the first signal; confirming or rejecting the transmission of the first signal; confirming or rejecting the transmission of the first signal at a transmission power not exceeding the maximum transmission power of the first signal, or rejecting the transmission of the first signal; the power adjustment value of the first signal; the maximum transmission power of the first signal; or first indication information used to indicate the second signal.

[0095] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol. In yet another possible implementation, the processing unit is further configured to determine the transmission power of the first signal based on the second information.

[0096] In another possible implementation, the processing unit is configured to determine the transmission power of the first signal based on the expected transmission power of the first signal and / or the power adjustment value of the first signal; or to determine the transmission power of the first signal based on the first indication information; or to calculate the transmission power of the second signal based on the ratio of the frequency domain resources of the first signal and the second signal and to determine the transmission power of the first signal based on the first power adjustment factor; wherein the transmission power of the first signal does not exceed the maximum transmission power of the first signal.

[0097] In another possible implementation, the processing unit is further configured to determine the transmission power of the first signal based on a third power adjustment factor, which is determined by the terminal device or other terminal device or network device.

[0098] In another possible implementation, the transceiver unit is also configured to receive second configuration information, which is used to indicate a first resource in the periodic resources.

[0099] In another possible implementation, the second configuration information includes: the transmission period of the first resource and / or the time-domain offset value of the first resource.

[0100] In another possible implementation, the transceiver unit is also configured to transmit the first signal at a power not exceeding the maximum transmission power of the first signal.

[0101] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol.

[0102] In another possible implementation, the transceiver unit is also used to send third information, which includes: service requirement information and / or terminal device capability information.

[0103] For the technical effects of the fifth aspect or possible implementation, please refer to the introduction of the technical effects of the second aspect or corresponding implementation.

[0104] Sixthly, embodiments of this application provide a signal receiving device, which may be a network device, a component of the network device (e.g., a processor, chip, circuit, or chip system), or a logic module or software capable of implementing all or part of the functions of the network device.

[0105] In one possible implementation, the signal receiving device may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions described in the third aspect. These modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0106] In one possible implementation, the signal receiving device includes: a processing unit and a transceiver unit. The transceiver unit is configured to transmit first configuration information for configuring periodic resources; the transceiver unit is configured to receive a third signal on a first resource based on a third power, the third signal being a signal reflected back from a sensing target by the first signal; the transceiver unit is configured to receive a second signal on a second resource based on a fourth power, the third power being different from the fourth power, the first resource and the second resource being resources within the periodic resources; the first signal is used for sensing, and the second signal is used for communication.

[0107] In one possible implementation, the first signal is used for one or more of the following purposes, including: detecting the presence of a target, detecting the position of the target and / or the distance to the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target.

[0108] In another possible implementation, the second signal is used for one or more of the following purposes, including: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission.

[0109] In another possible implementation, the transceiver unit is further configured to receive first information associated with the first signal, the first information being used to determine the transmission power of the first signal, the first information including: the expected transmission power of the first signal; and / or a first request message for requesting adjustment of the transmission power of the first signal; and / or a second request message for requesting transmission of the first signal.

[0110] In another possible implementation, the first information is associated with the first signal, including one or more of the following: the first signal is a signal transmitted on the most recent periodic resource after the first information; the first signal is the most recent second signal after the first information; MN < C*P, where M is the time-domain position of the first information, N is the time-domain position of the first signal, P is the period of the periodic resource, and C is a positive integer greater than or equal to 1; MN = offset1, where M is the time-domain position of the first information, N is the time-domain position of the first signal, and offset1 is a first offset value; or, M2 - N = offset2, where M2 is the time-domain position of the second information, N is the time-domain position of the first signal, and offset2 is a second offset value. Optionally, M2 - M ≤ offset3, where offset3 is a third offset value.

[0111] In another possible implementation, the expected transmission power of the first signal is the transmission power of the first signal.

[0112] In another possible implementation, the transceiver unit is also used to send a second message in response to the first message.

[0113] In another possible implementation, the second information includes one or more of the following: confirming or rejecting the expected transmission power of the first signal; confirming or rejecting adjusting the transmission power of the first signal; confirming or rejecting transmitting the first signal; confirming that the first signal is transmitted at a power not exceeding the maximum transmission power of the first signal, or rejecting the transmission of the first signal; the power adjustment value of the first signal; the maximum transmission power of the first signal; or first indication information used to indicate the second signal.

[0114] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol.

[0115] In another possible implementation, the transceiver unit is also configured to send second configuration information, which is used to indicate a first resource in the periodic resources.

[0116] In another possible implementation, the second configuration information includes: the transmission period of the first resource and / or the time-domain offset value of the first resource.

[0117] In another possible implementation, the transceiver unit is also configured to receive the first signal at a power not exceeding the maximum transmit power of the first signal.

[0118] In another possible implementation, the maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol.

[0119] In another possible implementation, the transceiver unit is also used to receive third information, which includes: service requirement information and / or terminal device capability information.

[0120] For the technical effects of the sixth aspect or possible implementation, please refer to the introduction of the technical effects of the third aspect or corresponding implementation.

[0121] In a seventh aspect, embodiments of this application provide a signal transmitting apparatus, which includes at least one processor that invokes a computer program or instructions stored in a memory to execute the method described in the first aspect or a possible implementation thereof.

[0122] In one possible implementation, the signal transmitting device also includes the memory. Optionally, the memory and processor are integrated together.

[0123] In one possible implementation, the memory is located outside the signal transmitting device.

[0124] Eighthly, embodiments of this application provide a signal transmitting apparatus, the signal transmitting apparatus including at least one processor, the at least one processor calling a computer program or instructions stored in a memory to execute the method described in the second aspect or a possible implementation of the second aspect.

[0125] In one possible implementation, the signal transmitting device also includes the memory. Optionally, the memory and processor are integrated together.

[0126] In one possible implementation, the memory is located outside the signal transmitting device.

[0127] Ninthly, embodiments of this application provide a signal receiving device, which includes at least one processor that invokes a computer program or instructions stored in a memory to execute the method described in the third aspect or a possible implementation thereof.

[0128] In one possible implementation, the signal receiving device also includes the memory. Alternatively, the memory and processor are integrated together.

[0129] In one possible implementation, the memory is located outside the signal receiving device.

[0130] In a tenth aspect, embodiments of this application provide a chip device including at least one processor for executing computer programs or instructions to implement any of the above aspects or possible implementations of any of the above aspects.

[0131] In one possible implementation, the input of the chip device corresponds to the receiving operation in any of the above-mentioned aspects or possible implementations, and the output of the chip device corresponds to the transmitting operation in any of the above-mentioned aspects or possible implementations.

[0132] Optionally, the processor is coupled to the memory via an interface.

[0133] Optionally, the chip device may also include a memory storing computer program instructions.

[0134] Eleventhly, embodiments of this application provide a computer-readable storage medium storing a computer program or instructions that, when executed on a processor, implement the method described above.

[0135] In a twelfth aspect, embodiments of this application provide a computer program product that includes a computer program or instructions that, when executed on a processor, implement the method described in any of the above aspects.

[0136] In a thirteenth aspect, embodiments of this application provide a communication system, which includes: the apparatus and network device as described in the seventh aspect, or the communication system includes: the apparatus as described in the eighth aspect and the apparatus as described in the ninth aspect. Attached Figure Description

[0137] Figure 1 is a schematic diagram of the six modes included in the integrated communication and sensing model;

[0138] Figure 2 is a schematic diagram of a signal transmission or reception method provided in an embodiment of this application;

[0139] Figure 3 is a schematic diagram of determining the required power based on a first rule according to an embodiment of this application;

[0140] Figure 4 is a schematic diagram of another signal transmission or reception method provided in an embodiment of this application;

[0141] Figure 5 is a schematic diagram of a periodic resource provided in an embodiment of this application;

[0142] Figure 6 is a schematic diagram of a first resource provided in an embodiment of this application;

[0143] Figures 7-11 are schematic diagrams of another signal transmission or reception method provided in the embodiments of this application;

[0144] Figure 12 is a schematic diagram of a signal transmitting or receiving device provided in an embodiment of this application;

[0145] Figure 13 is a schematic diagram of another signal transmitting or receiving device provided in an embodiment of this application. Detailed Implementation

[0146] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0147] References to "one embodiment" or "some embodiments" as described in this application mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0148] In the description of this application, unless otherwise stated, " / " means "or". For example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Furthermore, "at least one" means one or more, and "multiple" means two or more. "At least one of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0149] It is understood that in this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing a certain instruction information to indicate A, it can be understood that the instruction information carries A, directly indicates A, or indirectly indicates A.

[0150] In this application, the information indicated by the instruction information is called the information to be instructed. In specific implementations, there are many ways to instruct the information to be instructed, such as, but not limited to, directly instructing the information to be instructed, such as the information to be instructed itself or its index; indirectly instructing the information to be instructed by instructing other information, where there is a relationship between the other information and the information to be instructed; or instructing only a part of the information to be instructed, while the other parts are known or pre-agreed upon. For example, the instruction of specific information can be achieved by using a pre-agreed (e.g., protocol-defined) arrangement of various pieces of information, thereby reducing instruction overhead to some extent.

[0151] The information to be instructed can be sent as a whole or divided into multiple sub-information messages, and the sending period and / or timing of these sub-information messages can be the same or different. This application does not limit the specific sending method. The sending period and / or timing of these sub-information messages can be predefined, for example, according to a protocol, or configured by the transmitting device by sending configuration information to the receiving device.

[0152] It is understood that "send" and "receive" in this application refer to the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which can include direct transmission via the air interface or indirect transmission via the air interface from other units or modules. "Receive information from YY" can be understood as the source of the information being YY, which can include direct reception from YY via the air interface or indirect reception from YY via the air interface from other units or modules. "Send" can also be understood as the "output" of the chip interface, and "receive" can also be understood as the "input" of the chip interface.

[0153] In other words, sending and receiving can occur between devices, such as between network devices and terminal devices, or within a device, such as between components, modules, chips, software modules, or hardware modules within the device via buses, wiring, or interfaces.

[0154] It is understandable that information may undergo necessary processing, such as encoding and modulation, between the source and destination, but the destination can understand the valid information from the source. Similar statements in this application can be interpreted in a similar way and will not be elaborated further.

[0155] The communication method provided in this application can be applied to cellular communication systems related to the 3rd Generation Partnership Project (3GPP), such as 4th generation (4G) communication systems, such as Long Term Evolution (LTE) communication systems, and also to 5th generation (5G) communication systems, such as 5G New Radio (NR) communication systems, or to various future communication systems and future communication networks. The method provided in this application can also be applied to Bluetooth systems, Wireless Fidelity (WiFi) systems, LoRa systems, or vehicle-to-everything (V2X) systems, communication systems supporting the integration of multiple wireless technologies, and device-to-device (D2D) systems. The method provided in this application can also be applied to satellite communication systems, wherein the satellite communication system can be integrated with the above-mentioned communication systems. The wireless communication systems involved in this application also include, but are not limited to: narrowband Internet of Things (NB-IoT), Global System for Mobile Communications (GSM), Enhanced Data Rate for GSM Evolution (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access 2000 (CDMA2000), or Time Division-Synchronization Code Division Multiple Access (TD-SCDMA).

[0156] Integrated sensing and communications (ISAC) combines communication and sensing functions, integrating cellular communication with sensing. From the perspective of device versatility, this can be understood as network devices and terminal devices used for communication also being used for sensing services. For example, a network device or terminal device can send a wireless signal that can be used for both communication and sensing simultaneously; or, a network device or terminal device can send different wireless signals, one for sensing and the other for communication. Please refer to Figure 1, which is a schematic diagram of the six modes included in the integrated communication sensing system. As shown in Figure 1(a), single-site sensing: the network device transmits and receives on its own, which can be understood as the same network device sending and receiving sensing signals. As shown in Figure 1(b), dual-site sensing: network device A sends and network device B receives, which can be understood as network device A sending sensing signals and network device B receiving sensing signals. Network device A and network device B are different network devices. As shown in Figure 1(c), network device sensing: terminal device sends and network device receives, which can be understood as the terminal device sending sensing signals and the network device receiving sensing signals. As shown in Figure 1(d), terminal device sensing: network device sends and terminal device receives, which can be understood as the network device sending sensing signals and the terminal device receiving sensing signals. As shown in Figure 1(e), terminal device sensing: terminal device transmits and receives on its own, which can be understood as the same terminal device sending and receiving sensing signals. As shown in Figure 1(f), terminal device sensing: terminal device A sends and terminal device B receives, which can be understood as terminal device A sending sensing signals and terminal device B receiving sensing signals. It should be noted that the method embodiments described in this application can be applied to (c), (e), and (f) of Figure 1. It should also be noted that the terminal device mentioned in Figure 1 can be any of the following types of terminal devices, and the network device mentioned in Figure 1 can be any of the following types of network devices.

[0157] (1) Terminal equipment, also known as user equipment (UE), mobile station (MS), mobile terminal (MT), etc., is a device that provides voice or data connectivity to a user. Specifically, it includes devices that provide voice connectivity to a user, devices that provide data connectivity to a user, or devices that provide both voice and data connectivity to a user. For example, it may include handheld devices with wireless connectivity or processing devices connected to a wireless modem. This terminal equipment can communicate with the core network via a radio access network (RAN), exchanging voice or data with the RAN, or interacting with the RAN to exchange voice and data. Currently, terminal devices can include: mobile phones, tablets, laptops, PDAs, mobile internet devices (MIDs), wearable devices (such as smartwatches, smart bracelets, pedometers, etc.), in-vehicle devices (such as cars, bicycles, electric vehicles, airplanes, ships, trains, high-speed trains, etc.), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, smart home devices (such as refrigerators, televisions, air conditioners, electricity meters, etc.), intelligent robots, workshop equipment, wireless terminals in autonomous driving, wireless terminals in remote surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, or wireless terminals in smart homes, and flying equipment (such as intelligent robots, hot air balloons, drones, airplanes), etc. Terminal devices can also be other devices with terminal functions; for example, a terminal device can also be a device that performs terminal functions in D2D communication.Terminal devices can also include vehicle-to-everything (V2X) terminal devices, machine-to-machine / machine-type communications (M2M / MTC) terminal devices, internet of things (IoT) terminal devices, light UEs, reduced capability UEs (REDCAP UEs), subscriber units, subscriber stations, mobile stations, remote stations, access points (APs), remote terminals, access terminals, user terminals, user agents, or user devices, and drone equipment. For example, this can include mobile phones (or "cellular" phones), computers with mobile terminal devices, portable, pocket-sized, handheld, and computer-embedded mobile devices, etc. Examples include personal communication service (PCS) telephones, cordless phones, session initiation protocol (SIP) phones, wireless local loop (WLL) stations, and personal digital assistants (PDAs). It also includes limited devices, such as devices with low power consumption, limited storage capacity, or limited computing power. Examples include information sensing devices such as barcode scanners, radio frequency identification (RFID), sensors, global positioning systems (GPS), and laser scanners. In this application, terminal devices with wireless transceiver capabilities and chips that can be installed in the aforementioned terminal devices are collectively referred to as terminal devices.

[0158] It should be noted that the terminal device may be a device or apparatus with a chip, or a device or apparatus with integrated circuitry, or a chip, module or control unit in the device or apparatus shown above. This application does not limit the specific device.

[0159] (2) A network device is a device deployed in a radio access network to provide wireless communication functions for terminal devices. The network device 101 may also be referred to as an access network (RAN) entity, access node, network node, or communication device, etc.

[0160] Specifically, the network equipment can be access network equipment for cellular systems related to the 3rd Generation Partnership Project (3GPP). For example, fourth-generation (4G) mobile communication systems or 5G mobile communication systems. The network equipment can also be access network equipment in open RAN (O-RAN or ORAN) or cloud radio access network (CRAN). Alternatively, the network equipment can also be access network equipment in a communication system formed by the integration of two or more of the above communication systems.

[0161] Network equipment includes, but is not limited to: evolved Node B (eNB), radio network controller (RNC), Node B (NB), base station controller (BSC), base transceiver station (BTS), home base station (e.g., home evolved NodeB, or home Node B, HNB), baseband unit (BBU), access point (AP) in wireless fidelity (WIFI) systems, macro base station, micro base station, wireless relay node, donor node, radio controller in CRAN scenarios, wireless backhaul node, transmission point (TP), or transmission and receiving point (TRP). Network equipment can also be access network equipment in 5G mobile communication systems. For example, next-generation Node B (gNB), TRP, TP in new radio (NR) systems, or one or more antenna panels (including multiple antenna panels) of a base station in a 5G mobile communication system. Alternatively, network devices can also be network nodes constituting a gNB or transmission point. Examples include centralized units (CUs), distributed units (DUs), CU-control plane (CPs), CU-user plane (UPs), or radio units (RUs). CUs and DUs can be separate entities or included in the same network element, such as a BBU. RUs can be included in radio equipment or radio units, such as remote radio units (RRUs), active antenna units (AAUs), or remote radio heads (RRHs). Alternatively, network devices can also be servers, wearable devices, vehicles, or in-vehicle equipment. For example, in V2X technology, network devices can be roadside units (RSUs).

[0162] It should be noted that CU (or CU-CP and CU-UP), DU, or RU may have different names in different systems, but those skilled in the art will understand their meaning. For example, in an ORAN system, CU can also be called an open centralized unit (O-CU) or an open CU, DU can also be called an open distributed unit (O-DU), centralized unit control plane (CU-CP) can also be called an open centralized unit control plane (O-CU-CP) or an open CU-CP, centralized unit user plane (CU-UP) can also be called an open centralized unit user plane (O-CU-UP) or an open CU-UP, and RU can also be called an open radio unit (O-RU). This application does not impose any specific limitations. Any of the units CU, CU-CP, CU-UP, DU, and RU in this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules.

[0163] In some deployments, the CU and DU implement some of the functions of the gNB. For example, the CU implements the functions of the radio resource control (RRC) and packet data convergence protocol (PDCP) layers, while the DU implements the functions of the radio link control (RLC), media access control (MAC), and physical (PHY) layers. Since RRC layer information ultimately becomes PHY layer information, or is transformed from PHY layer information, in this architecture, higher-layer signaling, such as RRC layer signaling or PDCP layer signaling, can also be considered to be sent by the DU, or by the DU+RU. It is understood that network devices can be CU nodes, DU nodes, or devices including both CU and DU nodes. Furthermore, the CU can be classified as a network device in the access network (RAN) or a network device in the core network (CN); no restrictions are placed here.

[0164] Optionally, network equipment can also be core network equipment. Core network equipment is responsible for access control, registration management, service management, mobility management, etc., of terminal equipment accessing the network. For example, core network equipment may be an authentication management function (AMF) network element, a user plane function (UPF) network element, a session management function (SMF) network element, or a policy control function (PCF) network element.

[0165] It should be noted that the network device can be the device or apparatus shown above, or a component (e.g., a chip), module, or unit in the device or apparatus shown above; this application does not limit the specifics.

[0166] In a scenario of integrated sensing and communication, the terminal device determines the resources used for sensing as follows: In a cellular communication system, some resources used for communication are allocated to the terminal device for sensing. The terminal device then sends sensing signals on these allocated or designated resources to perform sensing. When the terminal device uses a communication signal that combines sensing and communication—meaning the signal sent by the terminal device can be used for both communication and sensing—the network device can perform power control on both the communication and sensing signals simultaneously. However, this approach places high demands on the terminal device's implementation and requires the design of new waveforms, resulting in significant implementation costs. Alternatively, no power control can be applied to the sensing signal, but this approach easily interferes with the communication system, causing performance degradation. Therefore, how to avoid interference with cellular communication when the terminal device performs sensing is a technical problem that those skilled in the art are currently addressing.

[0167] Please refer to Figure 2, which is a schematic diagram of a signal transmission or reception method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0168] Step S201: Network device configuration parameter information.

[0169] This step is optional.

[0170] The network device can be one of the network devices shown in (c), (e), or (f) of Figure 1.

[0171] The parameter information may include one or more of the following: received signal-to-interference-plus-noise ratio (SINR), the relationship between received SINR and services, a first adjustment factor, or time-frequency domain resources occupied by a first signal. For example, the relationship between received SINR and services may refer to a single received SINR corresponding to each service.

[0172] Step S202: The terminal device determines the transmission power of the first signal.

[0173] The terminal device can be the terminal device in (c) of Figure 1, the terminal device in (e) of Figure 1, or the terminal device A in (f) of Figure 1.

[0174] The transmission power of the first signal is determined by one or more of the following, including: required power, equivalent power, or receive antenna threshold power. Optionally, the maximum transmission power of the first signal may also be included.

[0175] In one possible implementation, the transmit power of the first signal is determined by the minimum of one or more of the following: required power, reduced power, receive antenna threshold power, or maximum transmit power of the first signal, for example: P Tx (i)=min{P SMAX P s P C P Tx_RxLeak};

[0176] Among them, P Tx (i) represents the transmission power of the first signal, P SMAX P represents the maximum transmission power of the first signal. S P represents the required power. C P represents the converted power. Tx_RxLeak This indicates the receiving antenna threshold power.

[0177] It should be noted that the above method of determining the transmission power of the first signal by taking the minimum value is only for illustrative purposes. Of course, there are other methods, which are not limited in this application embodiment.

[0178] It should be noted that the transmission power of this first signal meets two requirements: the requirements for target detection and the requirements for communication system fusion. The requirement for target detection means that there needs to be sufficient transmission power to achieve the required sensing range and performance indicators; secondly, the echo signal needs to achieve a sufficient signal-to-interference-plus-noise ratio (SINR) to identify changes in the target (sensing the target). The requirement for communication system fusion means that the first signal is transmitted on communication system resources, which may be adjacent to or even reused by other terminal devices and network devices. To avoid interference with existing communication systems, the transmission power should not be too high, otherwise it will affect, for example, the receiving performance of network devices.

[0179] The required power is the power determined to meet specific needs. For example, the needs can be higher-level requirements, such as distance accuracy or speed accuracy; alternatively, the needs can be physical layer requirements, such as minimum received signal-to-interference-plus-noise ratio (SINNR), average noise power, or path loss. Optionally, there is a correspondence between higher-level and physical layer requirements; for example, distance accuracy corresponds to minimum received SINNR, average noise power, or path loss. This required power can also be referred to as service required power or sensing service required power, which is not limited in this embodiment. This required power is determined based on sensing services and can also be understood as corresponding to sensing service requirements.

[0180] In one possible implementation, the required power is determined based on the service distance and / or the received signal-to-interference-plus-noise ratio (SIN / NNR), which is determined based on the capabilities of the terminal device and / or use case requirements. Optionally, the service distance can be the perceived distance. The service distance can be the minimum service distance, which refers to the minimum distance that can meet the service requirements. The received SIN / NNR can be the minimum received SIN / NNR, which refers to the minimum SIN / NNR that meets the perception requirements. In one example, the received SIN / NNR is determined based on use case requirements; for example, the received SIN / NNR for gesture recognition is 10 dB, and the received SIN / NNR for personnel detection is -5 dB. Optionally, the received SIN / NNR can also be the received signal-to-noise ratio (SNR) or the received signal-to-interference ratio (SIN / NNR). Optionally, the required power can also be determined based on the noise-average power, path loss, or a second power adjustment factor. Optionally, the noise-average power can be the receiver's noise-average power, and the noise corresponding to the noise-average power can include one or more of the following: thermal noise, channel noise, or signal noise. The path loss can be the propagation loss from the terminal device to the sensing target, from the sensing target to the terminal device or other terminal devices or network devices, and the loss caused by the reflection of the first signal from the sensing target. The second power adjustment factor can be determined by the terminal device or other terminal devices or network devices. Optionally, the other terminal devices can be the receiving terminal devices of the sensing signal.

[0181] In one example, the required power is determined based on the minimum received signal-to-interference-plus-noise ratio, the average noise power, and the path loss, specifically satisfying the following relationship: P s =SINR min +N0+PL S ;

[0182] Among them, P s SINR represents the required power. min N0 represents the minimum received signal-to-interference-plus-noise ratio (SINORN), and PL represents the average noise power. S This indicates road loss. In this case, the power unit is milliwatt-decibel (dBm).

[0183] It is understood that in the above possible implementations, the received signal-to-interference-plus-noise ratio (SINR) can be replaced with the received signal-to-noise ratio (SINR), the received SINR, the signal-to-noise ratio (SNR), or the signal-to-interference-plus-noise ratio (SNR), and the minimum received SINR can be replaced with the minimum received SINR, the minimum received SINR, the minimum signal-to-noise ratio (SNR), or the minimum SNR.

[0184] In another possible implementation, the required power is determined by the terminal device according to a first rule, indicated by the network device, or predefined. The first rule includes one or more of the following: determining the required power based on an initial value; determining whether the required power meets service requirements; or determining whether the required power is greater than the maximum transmission power of the first signal. If it is determined that the required power does not meet service requirements, the required power is increased by a first power step size; or, if it is determined that the required power is greater than the maximum transmission power of the first signal, the required power is decreased by a second power step size. That is, the required power can be understood as power not exceeding the maximum transmission power of the first signal, or power not exceeding the maximum transmission power of the first signal and meeting service requirements. This required power can be the minimum power determined by the terminal device according to the first rule. Through the above method, dynamic adjustment of the required power can be achieved, thereby determining a more suitable required power.

[0185] The first power step size and the second power step size can be the same or different, and this application does not limit them.

[0186] Determining whether the required power meets the service requirements can be understood as whether the received signal-to-interference-plus-noise ratio (SINR) of the first received signal is greater than or equal to the minimum received SINR, or whether the strength indication of the first received signal is greater than the threshold of the received signal strength indication, i.e., SINR. received ≥SINR min Among them, SINR received SINR represents the received signal-to-interference-plus-noise ratio (SINR) of the first received signal. min RSSI represents the minimum received signal-to-interference-plus-noise ratio. received ≥RSSI threshold Among them, RSSI received RSSI indicates the strength of the first received signal. threshold The threshold indicating the strength of the received signal.

[0187] In one example, the first rule includes one or more of the following: determining the required power based on initial values. Incremental and / or decremental adjustments are made to the initial values, specifically as follows: P s =P O_initial +10log 10 (2 μ ·M S_RS )+f S ;

[0188] Among them, P s P represents the required power. O_initial M represents the initial value, μ represents the subcarrier spacing, and M represents the initial value. S_RS f represents the number of frequency domain resources for the first transmitted signal. S This is the power adjustment amount. In this case, the power unit is dBm.

[0189] The initial value can be understood as the initial power, which can be predefined as a fixed value, such as 0, through the protocol, or it can be configured by the network device or determined by the terminal device. The number of frequency domain resources can be understood as the number of frequency domain resources indicated or configured by the network device, or determined by the terminal device itself. For example, the number of frequency domain resources for the first transmitted signal can be the number of resource blocks (RBs).

[0190] Optional, f S It can be determined in the following way, specifically as follows: f S =f S (i-1)+M*Δf1+N*Δf2;

[0191] Where M and N are positive integers, and Δf1 and Δf2 are positive and negative integers, respectively.

[0192] In another example, the first rule includes: determining the required power based on an initial value; determining whether the required power meets the service requirements; or determining whether the required power is greater than the maximum transmission power of the first signal. Please refer to Figure 3, which is a schematic diagram of determining the required power based on the first rule according to an embodiment of this application. Step 1: Determine the initial value. Step 2: Determine the required power based on the initial value. Step 3: Determine whether the required power meets the service requirements. If it is determined that the required power does not meet the service requirements, increase the required power by a first power step size. Step 4: Determine whether the required power is greater than the maximum transmission power of the first signal. If it is determined that the required power is greater than the maximum transmission power of the first signal, decrease the required power by a second power step size. Step 5: Determine whether the required power meets the service requirements. If it is determined that the service requirements are met, then determine whether the required power is greater than the maximum transmission power of the first signal; if it is determined that the service requirements are not met, then determine the required power as the maximum transmission power of the first signal. It should be noted that the order of steps 1, 2, 3, 4, and 5 is not limited, and the process for determining the required power does not include all steps, such as steps 1-5.

[0193] The calculated power is determined by calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first and second signals, and also based on a first power adjustment factor. When the first power adjustment factor is 1, the calculated power is determined by calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first and second signals. The first power adjustment factor is determined by the terminal device or other terminal devices or network devices.

[0194] The first signal is used for sensing. The first signal is used for one or more of the following purposes: detecting the presence of a target, detecting the position of the target and / or its distance from the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target. In one possible implementation, the first signal is a signal dedicated to sensing, or the first signal is not used for communication. It is understood that "detection" can also be replaced by "identification," "determination," or "calculation," etc., and this application is not limited thereto.

[0195] The second signal is used for communication and is used for one or more of the following purposes, including: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission. When the second signal is used to measure channel state, it can be a channel sounding reference signal (SRS); when the second signal is used for channel demodulation, it can be a demodulation reference signal (DMRS); when the second signal is used for cell access, it can be a preamble sequence or a physical uplink shared channel scheduled by downlink control information, wherein the cyclic redundancy check of the downlink control information is scrambled by the temporary cell radio network temporary identifier; when the second signal is used to carry control information transmission, it can be a scheduling request (SR) message, channel state information (CSI), hybrid automatic repeat request (HARQ), or physical uplink control channel (PUCCH); when the second signal is used to carry data information transmission, it can be a physical uplink shared channel (PUSCH).

[0196] The second signal is determined by one or more of the following methods: the second signal is the signal that is closest to the first signal in the time domain; the time domain distance between the second signal and the first signal is less than or less than and equal to a first threshold value; the second signal and the first signal have the same frequency domain bandwidth; the second signal and the first signal occupy the same number of frequency domain resource units; the second signal and the first signal are transmitted using the same antenna port; or the second signal and the first signal use the same beam. The second signal being closest to the first signal in the time domain can mean: the difference between the start symbol index of the second signal and the start symbol index of the first signal is the smallest; or, the absolute time between the start symbol of the second signal and the start symbol of the first signal is the smallest; or, the difference between the end symbol index of the second signal and the start symbol index of the first signal is the smallest; or, the absolute time between the end symbol of the second signal and the start symbol of the first signal is the smallest; optionally, the index difference is greater than 0.

[0197] In one example, the first power adjustment factor is 1, and the calculated power is determined by adjusting the transmission power of the second signal based on the ratio of the frequency domain resources of the first and second signals. For example, the following relationship can be satisfied:

[0198] Among them, P C P represents the converted power. Last_ULtx N represents the transmission power of the second signal. Last_ULtx Indicates the number of RBs in the second signal. This indicates the number of RBs in the first signal. In this case, the power unit is dBm.

[0199] In another example, the discounted power is calculated by discounting the transmission power of the second signal based on the ratio of the frequency domain resources of the first and second signals, and determined based on the first power adjustment factor, for example, satisfying the following relationship:

[0200] Power is measured in milliwatts (mW) or watts (w).

[0201] The unit of power is dBm:

[0202] Among them, P C P represents the converted power. Last_ULtx N represents the transmission power of the second signal. Last_ULtx Indicates the number of RBs in the second signal. β represents the number of RBs in the first signal, and β represents the first power adjustment factor.

[0203] In another example, the discounted power is calculated by discounting the transmission power of the second signal based on the ratio of the frequency domain resources of the first and second signals, and determined based on the first power adjustment factor, for example, satisfying the following relationship:

[0204] Power is measured in milliwatts (mW) or watts (w).

[0205] The unit of power is dBm:

[0206] Among them, P C P represents the converted power. Last_ULtx M represents the transmission power of the second signal. Last_ULtx Indicates the number of subcarriers of the second signal. β represents the number of subcarriers of the first signal, and β represents the first power adjustment factor.

[0207] The receive antenna threshold power is the maximum transmit power determined based on the receive power threshold of the receive antenna. It can also be understood as the maximum transmit power the receive antenna can tolerate when transmit / receive duplex is enabled. The receive antenna threshold power is determined based on one or more of the following: transmit-to-receive antenna loss, transmit-receive antenna isolation, or receive power threshold. Transmit-to-receive antenna loss can refer to the loss between the transmit and receive antennas under free space or near-field conditions, such as path loss. Transmit-receive antenna isolation can be reported by the terminal device based on its capabilities or predefined. The receive power threshold is a power reception threshold determined based on the receiving capability of the terminal device. When the received power is lower than this receive power threshold (but not lower than the receive sensitivity), the terminal device can receive normally; however, when the received power exceeds the receive power threshold, the terminal device cannot receive normally, and may even damage the terminal device.

[0208] In one example, the receive antenna threshold power can be determined by the following formula: P Tx_RxLeak =PL Tx-Rx +T ant_iso +P rx_target ;

[0209] Among them, P Tx_RxLeak PL represents the receiving antenna threshold power. Tx-Rx T represents the loss between the transmitting and receiving antennas. ant_iso P represents the isolation between the transmitting and receiving antennas. rx_target This indicates the receive power threshold. The power unit here is dBm.

[0210] The maximum transmission power of the first signal differs from that of the second signal. The maximum transmission power of the first signal is determined based on one or more of the following: the capability of the terminal device, the operating frequency of the first signal, or the modulation method of the first signal. Implementation limitations may also be included.

[0211] In the above method, the transmission power of the first signal can also be determined based on the maximum transmission power of the first signal, thereby protecting the device.

[0212] Step S203: The terminal device transmits the first signal based on the transmission power of the first signal.

[0213] In one possible implementation, as shown in Figure 1(c), the network device receives a third signal based on a first received power. This third signal is the signal reflected back from the sensing target by the first signal.

[0214] In another possible implementation, as shown in Figure 1(e), the terminal device receives a third signal based on a first receiving power. This third signal is the signal reflected back from the sensing target by the first signal.

[0215] In another possible implementation, as shown in Figure 1(f), terminal device A transmits the first signal based on the transmission power of the first signal, and terminal device B receives the third signal based on the reception power of the first signal. This third signal is the signal reflected back from the sensing target by the first signal.

[0216] In the method described in Figure 2, when determining the transmission power of the first signal, if it is determined based on the required power, it can meet the service requirements; if it is determined based on the converted power, it can avoid communication system interference; if it is determined based on the receiving antenna threshold power, it can protect the device to a certain extent. In short, the determination of the transmission power of the first signal takes into account factors such as service requirements, avoiding communication system interference, and protecting the device, thereby controlling the power of the first signal.

[0217] Please refer to Figure 4, which is a schematic diagram of another signal transmission or reception method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0218] Step S401: The network device sends the first configuration information.

[0219] The network device sends first configuration information to the terminal device, which is used to configure periodic resources. These periodic resources are used to send a first signal and a second signal. For example, the periodic resources could be SRS resources.

[0220] Step S402: The terminal device receives the first configuration information.

[0221] The terminal device receives the first configuration information from the network device.

[0222] Step S403: The terminal device transmits a first signal on a first resource based on a first power, and transmits a second signal on a second resource based on a second power.

[0223] The first power and the second power are different; the first resource and the second resource are resources within a periodic resource set; the first signal is used for sensing and is used for one or more of the following purposes: detecting the presence of a target, detecting the position of the target and / or the distance to the terminal device, detecting the speed of the target, detecting the angle between the target and a determined direction, or detecting the movement path of the target. It is understood that "detection" can also be replaced by "identification," "determination," or "calculation," etc., and this application is not limited thereto. The second signal is used for communication and is used for one or more of the following purposes: measuring channel status, channel demodulation, cell access, carrying control information transmission, or carrying data information transmission. For details, please refer to the relevant description in step S202.

[0224] In one example, please refer to Figure 5, which is a schematic diagram of a periodic resource provided in an embodiment of this application. One period includes 20 time slots. The 0th and 10th time slots are used to transmit a second signal, and the resources corresponding to the 0th and 10th time slots are the second resources. The 20th time slot is used to transmit a first signal, and the resources corresponding to the 20th time slot are the first resources. It can be understood that the terminal device can reuse the periodic resources already configured for communication by the network device for sensing.

[0225] In one possible implementation, the method further includes: the terminal device sending first information, and correspondingly, the network device receiving the first information.

[0226] In this process, the terminal device sends first information to the network device, and the network device receives the first information from the terminal device.

[0227] The first information is associated with the first signal and is used to determine the transmission power of the first signal. The first information includes: the expected transmission power of the first signal and / or a first request message, which requests adjustment of the transmission power of the first signal, and / or a second request message, which requests transmission of the first signal. The expected transmission power of the first signal can also be referred to as the projected transmission power of the first signal.

[0228] Wherein, the first information is associated with the first signal, including one or more of the following: the first signal is the signal transmitted on the most recent periodic resource after the first information; the first signal is the most recent second signal after the first information; MN < C*P, where M is the time domain position of the first information, N is the time domain position of the first signal, P is the period of the periodic resource, and C is a positive integer greater than or equal to 1; MN = offset1, where M is the time domain position of the first information, N is the time domain position of the first signal, and offset1 is the first offset value; or, M2 - N = offset2, where M2 is the time domain position of the second information, N is the time domain position of the first signal, and offset2 is the second offset value. Optionally, M2 - M ≤ offset3, where offset3 is the third offset value.

[0229] Optionally, the time domain location of the first information, the first signal, or the second signal can be understood as the time slot where the first information, the first signal, or the second signal is located.

[0230] Optionally, offset1, offset2, or offset3 can be configured by higher-layer signaling, such as radio resource control signaling or radio media access control (MAC) control element (CE), or can be indicated by dynamic signaling, such as downlink control information; offset1, offset2, or offset3 can be the number of time units of offset, such as several time slots or several milliseconds.

[0231] The expected transmission power of the first signal and the first power can be the same or different. In one possible implementation, the expected transmission power of the first signal is the transmission power of the first signal. The first request message used to request adjustment of the transmission power of the first signal can refer to a request to increase or decrease the transmission power of the first signal.

[0232] In another possible implementation, the method further includes: the network device sending second information, and correspondingly, the terminal device receiving the second information.

[0233] In this process, the network device sends the second information to the terminal device, and the terminal device receives the second information from the network device.

[0234] The second information includes one or more of the following: confirmation or rejection of the expected transmission power of the first signal; confirmation or rejection of adjusting the transmission power of the first signal; confirmation or rejection of transmitting the first signal; confirmation of transmitting the first signal at a power not exceeding the maximum transmission power of the first signal, or rejection of transmitting the first signal; the power adjustment value of the first signal; the maximum transmission power of the first signal; or first indication information used to indicate the second signal. The maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by the protocol. Optionally, the second information can be carried in downlink control signaling, such as downlink control information (DCI). This approach increases the negotiation mechanism between the network device and the terminal device, which to some extent ensures the normal transmission of the first signal and avoids inaccurate measurements by the network device.

[0235] In one example, when the terminal device sends first information, including an expected transmission power of a first signal, the network device sends second information, including acknowledgment or rejection of the expected transmission power of the first signal. In another example, when the terminal device sends first information, including a first request message requesting adjustment of the transmission power of the first signal, the network device sends second information, including acknowledgment or rejection of adjusting the transmission power of the first signal. In yet another example, when the terminal device sends first information, including a second request message requesting transmission of the first signal, the network device sends second information, including acknowledgment or rejection of transmitting the first signal. In yet another example, when the terminal device sends first information, including a second request message requesting transmission of the first signal, the network device sends second information, including acknowledgment of transmitting the first signal at no more than the maximum transmission power of the first signal, or rejection of transmitting the first signal.

[0236] Optionally, the terminal device determines the transmission power of the first signal based on the second information. Determining the transmission power of the first signal based on the second information includes: determining the transmission power of the first signal based on the expected transmission power of the first signal and / or the power adjustment value of the first signal; or determining the transmission power of the first signal based on the first indication information; or calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first signal and the second signal, and determining the transmission power of the first signal based on the first power adjustment factor; wherein the transmission power of the first signal does not exceed the maximum transmission power of the first signal.

[0237] In one example, the terminal device can determine the transmission power of the first signal based on the expected transmission power of the first signal and the power adjustment value of the first signal. For example, if the expected transmission power of the first signal is 23dBm and the power adjustment value of the first signal is -5dB, the transmission power of the first signal is determined to be 23-5=17dBm.

[0238] In another example, the terminal device can determine the transmission power of the first signal based on the first indication information. For example, the transmission power of the first signal is determined by calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first signal and the second signal, and based on the first power adjustment factor. For details, please refer to the description of the calculated power in step S202.

[0239] In another example, the terminal device determines the transmission power of the first signal based on the expected transmission power of the first signal. For example, the transmission power of the first signal is equal to the expected transmission power of the first signal; for instance, if the expected transmission power of the first signal is 17 dBm, then the transmission power of the first signal is 17 dBm.

[0240] The transmission power of the first signal does not exceed its maximum transmission power. Optionally, the transmission power of the first signal can also be determined based on a third power adjustment factor, which is determined by the terminal device or other terminal devices or network devices.

[0241] In another example, the terminal device can determine the transmission power of the first signal based on its maximum transmission power. For example, the transmission power of the first signal can be less than or equal to its maximum transmission power.

[0242] In the above method, the transmission power of the first signal, determined through the negotiation mechanism between the network device and the terminal device, can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurement by the network device.

[0243] In another possible implementation, the method further includes: the network device sending second configuration information, and correspondingly, the terminal device receiving the second configuration information.

[0244] In this process, the network device sends second configuration information to the terminal device, and the terminal device receives the second configuration information from the network device.

[0245] The second configuration information is used to indicate a first resource among periodic resources. In one possible implementation, the first resource is one or more resources among periodic resources used to transmit the second signal, as shown in Figure 5. In another possible implementation, the first resource is a resource among periodic resources used to transmit the first signal, as shown in Figure 6. Figure 6 is a schematic diagram of a first resource provided in an embodiment of this application. One period includes 20 time slots, and the 0th, 10th, and 20th time slots are used to transmit the first signal. The 0th, 10th, and 20th time slots are the first resource.

[0246] The second configuration information includes: the transmission period of the first resource and / or the time-domain offset value of the first resource. The transmission period can be an absolute time value or a number of time units, such as 100 milliseconds (ms) or 10 time slots; alternatively, the transmission period can also be the number of second signal transmission opportunities. The time-domain offset value can be an absolute time or a time unit, such as 2 ms or 2 time units, where the time unit can be, for example, a time slot; alternatively, the time-domain offset value can also be the number of second signal transmission opportunities.

[0247] In one possible implementation, the terminal device transmits the first signal at a power not exceeding the maximum transmission power of the first signal. The maximum transmission power of the first signal is configured by the network device or other terminal device, or is predefined by a protocol.

[0248] The method further includes: the terminal device sending third information, and the network device receiving the third information accordingly.

[0249] In this process, the terminal device sends third information to the network device, and the network device receives the third information from the terminal device.

[0250] This third piece of information includes business requirements and / or terminal device capabilities.

[0251] Step S404: The network device receives a third signal on the first resource based on a third power, and receives a second signal on the second resource based on a fourth power. The third power and the fourth power are different.

[0252] The third signal is the signal reflected back from the first signal after passing through the sensing target.

[0253] In the method described in Figure 4, power control can be performed on the sensing signals sent by the terminal device in the above manner.

[0254] Please refer to Figure 7, which is a schematic diagram of another signal transmission or reception method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0255] Step S701: The terminal device sends a first request message.

[0256] This step is optional.

[0257] Accordingly, the network device receives the first request message.

[0258] In this process, the terminal device sends a first request message to the network device, and the network device receives the first request message from the terminal device.

[0259] The first request message is used to request an adjustment of the transmission power of the first signal, as detailed in the relevant description in step S403.

[0260] Step S702: The network device sends an acknowledgment to adjust the transmission power of the first signal.

[0261] This step is optional.

[0262] Accordingly, the terminal device receives confirmation and adjusts the transmission power of the first signal.

[0263] In this process, the network device sends a confirmation signal to the terminal device to adjust the transmission power of the first signal, and the terminal device receives the confirmation signal from the network device to adjust the transmission power of the first signal.

[0264] Step S703: The terminal device sends the first signal with the expected transmission power.

[0265] In this process, the terminal device sends a first signal expected transmission power to the network device, and the network device receives the first signal expected transmission power from the terminal device.

[0266] Step S704: The network device sends an acknowledgment or rejection signal with the expected transmission power.

[0267] The following is a description in two parts: First, the network device sends an acknowledgment signal with the expected transmission power; second, the network device sends a rejection signal with the expected transmission power. Details are as follows:

[0268] Firstly: If the network device sends an acknowledgment of the expected transmission power of the first signal, the terminal device transmits the first signal based on this expected transmission power. Optionally, the expected transmission power of the first signal is the actual transmission power of the first signal. In one example, the expected transmission power of the first signal is 23dBm, and the terminal device transmits the first signal at 23dBm.

[0269] Secondly: If the network device sends a rejection signal with the expected transmission power, the network device sends a power adjustment value for the first signal. Correspondingly, the terminal device receives the power adjustment value for the first signal and determines the transmission power of the first signal based on the power adjustment value for the first signal.

[0270] In one example, the terminal device determines the transmission power of the first signal based on the expected transmission power and the power adjustment value of the first signal, and transmits the first signal based on the transmission power. For example, if the expected transmission power of the first signal is 23dBm and the power adjustment value of the first signal is -5dB, the determined transmission power of the first signal is 23-5=17dBm, and the terminal device transmits the first signal at 17dBm.

[0271] In the method described in Figure 7, the transmission power of the first signal, determined through the negotiation mechanism between the network device and the terminal device, can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurements by the network device.

[0272] Please refer to Figure 8, which is a schematic diagram of another signal transmission or reception method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0273] Step S801: The terminal device sends a first request message.

[0274] Accordingly, the network device receives the first request message.

[0275] In this process, the terminal device sends a first request message to the network device, and the network device receives the first request message from the terminal device.

[0276] The first request message is used to request an adjustment of the transmission power of the first signal, as detailed in the relevant description in step S403.

[0277] Step S802: The network device sends an acknowledgment to adjust the transmission power of the first signal.

[0278] This step is optional.

[0279] Accordingly, the terminal device receives confirmation and adjusts the transmission power of the first signal.

[0280] In this process, the network device sends a confirmation signal to the terminal device to adjust the transmission power of the first signal, and the terminal device receives the confirmation signal from the network device to adjust the transmission power of the first signal.

[0281] Step S803: Maximum transmission power of the network device for sending the first signal.

[0282] Correspondingly, the maximum transmission power of the terminal device to receive the first signal.

[0283] The maximum transmission power of the network device sending the first signal to the terminal device is defined as follows: the maximum transmission power of the first signal received by the terminal device is defined as follows.

[0284] In the method described in Figure 8, the maximum transmission power of the first signal is determined through the negotiation mechanism between the network device and the terminal device. The transmission power of the first signal determined subsequently is not greater than the maximum transmission power of the first signal, which can protect the device.

[0285] Please refer to Figure 9, which is a schematic diagram of another signal transmission or reception method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0286] Step S901: The terminal device sends a first request message.

[0287] Accordingly, the network device receives the first request message.

[0288] In this process, the terminal device sends a first request message to the network device, and the network device receives the first request message from the terminal device.

[0289] The first request message is used to request an adjustment of the transmission power of the first signal, as detailed in the relevant description in step S403.

[0290] Step S902: The network device sends an acknowledgment to adjust the transmission power of the first signal.

[0291] This step is optional.

[0292] Accordingly, the terminal device receives confirmation and adjusts the transmission power of the first signal.

[0293] In this process, the network device sends a confirmation signal to the terminal device to adjust the transmission power of the first signal, and the terminal device receives the confirmation signal from the network device to adjust the transmission power of the first signal.

[0294] Step S903: The network device sends the first instruction information.

[0295] Accordingly, the terminal device receives the first instruction information.

[0296] For example, the network device sends a first instruction to the terminal device, and the terminal device receives the first instruction from the network device.

[0297] The first indication information is used to indicate the second signal. The terminal device can determine the transmission power of the first signal based on the first indication information and transmit the first signal based on the transmission power of the first signal. For example, the transmission power of the first signal is determined by calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first signal and the second signal, and based on a first power adjustment factor. For details, please refer to the relevant description in step S403.

[0298] In the method described in Figure 9, the transmission power of the first signal, determined through the negotiation mechanism between the network device and the terminal device, can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurements by the network device.

[0299] Please refer to Figure 10, which is a schematic diagram of another signal transmission or reception method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0300] S1001: Maximum transmission power of the network device for sending the first signal.

[0301] This step is optional. Optionally, the network device sends configuration information, which includes the maximum transmit power of the first signal.

[0302] Correspondingly, the maximum transmission power of the terminal device to receive the first signal.

[0303] The maximum transmission power of the network device sending the first signal to the terminal device is defined as follows: the maximum transmission power of the first signal received by the terminal device is defined as follows.

[0304] S1002: The terminal device sends a second request message.

[0305] The second request message is used to request the sending of the first signal.

[0306] Accordingly, the network device receives the second request message.

[0307] In this process, the terminal device sends a second request message to the network device, and the network device receives the second request message from the terminal device.

[0308] S1003: The network device sends an acknowledgment or refuses to send the first signal.

[0309] The process of a network device sending an acknowledgment or rejection signal for the first signal has two aspects. First, if the network device sends an acknowledgment signal for the first signal, the terminal device receives the acknowledgment and then transmits the first signal at a power not exceeding the maximum transmission power of the first signal. Second, if the network device sends a rejection signal for the first signal, the terminal device receives the rejection signal and then does not transmit the first signal.

[0310] In the method described in Figure 10, the transmission power of the first signal, determined through the negotiation mechanism between the network device and the terminal device, can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurements by the network device.

[0311] Please refer to Figure 11, which is a schematic diagram of another signal transmission or reception method provided in an embodiment of this application. The method includes, but is not limited to, the following steps:

[0312] S1101: Maximum transmission power of the network device for sending the first signal.

[0313] This step is optional. Optionally, the network device sends configuration information, which includes the maximum transmit power of the first signal.

[0314] Correspondingly, the maximum transmission power of the terminal device to receive the first signal.

[0315] The maximum transmission power of the network device sending the first signal to the terminal device is defined as follows: the maximum transmission power of the first signal received by the terminal device is defined as follows.

[0316] S1102: The terminal device sends a second request message.

[0317] The second request message is used to request the sending of the first signal.

[0318] Accordingly, the network device receives the second request message.

[0319] In this process, the terminal device sends a second request message to the network device, and the network device receives the second request message from the terminal device.

[0320] S1103: The network device sends an acknowledgment to send the first signal at a power not exceeding the maximum transmission power of the first signal, or sends a rejection to send the first signal.

[0321] Accordingly, the terminal device receives confirmation to transmit the first signal at a power not exceeding the maximum transmission power of the first signal, or receives confirmation to refuse to transmit the first signal.

[0322] When the terminal device receives an acknowledgment, it transmits the first signal at a power not exceeding the maximum transmission power of the first signal. Then, the terminal device transmits the first signal at a power not exceeding the maximum transmission power of the first signal.

[0323] If the terminal device receives a rejection signal, then the terminal device will not send the first signal.

[0324] In the method described in Figure 11, the transmission power of the first signal, determined through the negotiation mechanism between the network device and the terminal device, can, to a certain extent, ensure the normal transmission of the first signal and avoid inaccurate measurements by the network device.

[0325] The methods of the embodiments of this application have been described in detail above, and the apparatus of the embodiments of this application is provided below.

[0326] Please refer to Figure 12. Figure 12 is a schematic diagram of the structure of a signal transmitting or receiving device 1200 provided in an embodiment of this application. The signal transmitting or receiving device 1200 may include modules, units, or means that correspond one-to-one with the methods / operations / steps / actions performed by the terminal device or network device in the above method embodiments. The modules, units, or means may be hardware circuits, software, or a combination of hardware circuits and software.

[0327] In one possible implementation, the signal transmitting or receiving device 1200 may include a processing unit 1201 and a transceiver unit 1202, the specific details of which are as follows:

[0328] The processing unit 1201 is used for data processing. The transceiver unit 1202 can implement corresponding communication functions. The transceiver unit 1202 can also be called a communication interface or a communication module.

[0329] Optionally, the signal transmitting or receiving device 1200 may further include a storage unit, which can be used to store instructions and / or data. The processing unit 1201 can read the instructions and / or data in the storage module to implement the aforementioned method embodiments.

[0330] Optionally, the transceiver unit 1202 may include a sending unit and a receiving unit. The sending unit is used to perform the sending operation in the above method embodiments. The receiving unit is used to perform the receiving operation in the above method embodiments.

[0331] It should be noted that the signal transmitting or receiving device 1200 may include a transmitting unit but not a receiving unit. Alternatively, the signal transmitting or receiving device 1200 may include a receiving unit but not a transmitting unit. Specifically, it depends on whether the above-described scheme performed by the signal transmitting or receiving device 1200 includes both transmitting and receiving actions.

[0332] The processing unit 1201 is used to execute the processing operations performed by the terminal device or network device in the embodiments shown in Figures 2, 4, 7, 8, 9, 10, or 11. The transceiver unit 1202 is used to execute the transceiver operations performed by the terminal device or network device in the embodiments shown in Figures 2, 4, 7, 8, 9, 10, or 11. For details, please refer to the relevant descriptions in the above method embodiments; they will not be elaborated upon here.

[0333] It should be noted that the module division in this embodiment is illustrative and is only a logical functional division. In actual implementation, there may be other division methods.

[0334] The processing unit 1201 in the above embodiments can be implemented by at least one processor or processor-related circuitry. The transceiver unit 1202 can be implemented by a transceiver or transceiver-related circuitry. The transceiver unit 1202 can also be referred to as a communication module or communication interface. The storage module can be implemented by at least one memory.

[0335] Please refer to Figure 13. Figure 13 is a schematic diagram of the structure of a signal transmitting or receiving device 1300 provided in an embodiment of this application. The signal transmitting or receiving device 1300 may include modules, units or means corresponding to the methods / operations / steps / actions performed by the terminal device or network device in the above method embodiments. The modules, units or means may be hardware circuits, software, or hardware circuits combined with software.

[0336] The signal transmitting or receiving device 1300 includes at least one processor 1301. Optionally, it also includes a communication interface 1303 and a memory 1302. The processor 1301, memory 1302, and communication interface 1303 are interconnected via a bus 1304. Optionally, the processor 1301 and memory 1302 can be integrated together.

[0337] The memory 1302 includes, but is not limited to, random access memory (RAM), read-only memory (ROM), erasable programmable read-only memory (EPROM), or compact disc read-only memory (CD-ROM), and is used for related computer programs and data. The communication interface 1303 is used for receiving and sending data.

[0338] Processor 1301 can be one or more central processing units (CPUs). When processor 1301 is a CPU, the CPU can be a single-core CPU or a multi-core CPU.

[0339] The processor 1301 in the signal transmitting or receiving device 1300 is used to read the computer program or instructions stored in the memory 1302 to implement the functions of the processing unit. The communication interface 1303 in the signal transmitting or receiving device 1300 is used to implement the functions of the transceiver unit.

[0340] This application also provides a chip device including at least one processor, which is used to call a computer program or instructions stored in a memory to cause the processor to execute the method provided in the above embodiments.

[0341] In one possible implementation, the input of the chip device corresponds to the receiving operation in any of the above embodiments, and the output of the chip device corresponds to the sending operation in any of the above embodiments.

[0342] Optionally, the processor is coupled to the memory via an interface.

[0343] Optionally, the chip device may also include a memory storing computer program instructions.

[0344] This application also provides a computer-readable storage medium storing a computer program or instructions that, when executed on a processor, implement the method performed by a terminal device or network device in the above method embodiments.

[0345] This application also provides a computer program product, which includes a computer program or instructions that, when run on a processor, implement the method executed by a terminal device or network device in the above method embodiments.

[0346] It is understood that the processor in the embodiments of this application may be a Central Processing Unit (CPU), or other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor may be a microprocessor or any conventional processor.

[0347] The method steps in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, CD-ROMs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an ASIC. Alternatively, the ASIC can reside in a base station or terminal. Of course, the processor and storage medium can also exist as discrete components in the base station or terminal.

[0348] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0349] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0350] In the description of this application, terms such as “first,” “second,” “S201,” or “S202” are used only for the purpose of distinguishing descriptions and for the convenience of context. The different sequence numbers themselves do not have specific technical meanings and should not be construed as indicating or implying relative importance, nor should they be construed as indicating or implying the order of execution of operations. The order of execution of each process should be determined by its function and internal logic.

Claims

1. A signal transmission method, characterized in that, include: The transmission power of the first signal is determined by one or more of the following, including: required power, calculated power, or receive antenna threshold power. The required power refers to the power determined to meet the requirements. The calculated power is determined by calculating the transmission power of the second signal based on the ratio of the frequency domain resources of the first signal and the second signal, and is also determined based on a first power adjustment factor. The receive antenna threshold power is the maximum transmission power determined according to the receive power threshold of the receive antenna. The first signal is transmitted based on the transmission power of the first signal.

2. The method according to claim 1, characterized in that, The first signal is used for sensing, and the second signal is used for communication.

3. The method according to claim 1 or 2, characterized in that, The required power is determined based on the service distance and / or the received signal-to-interference-plus-noise ratio (SINNR); the service distance or the received SINNR is determined based on the capabilities of the terminal equipment and / or use case requirements.

4. The method according to claim 1 or 2, characterized in that, The required power is determined by the terminal device according to the first rule, or indicated by the network device, or predefined by the protocol.

5. The method according to claim 4, characterized in that, The first rule includes one or more of the following: The required power is determined based on the initial values; Determine whether the required power meets the business needs; or Determine whether the required power is greater than the maximum transmission power of the first signal.

6. The method according to claim 5, characterized in that, The method further includes: If it is determined that the required power does not meet the service requirements, the required power is increased by a first power step size, or... If it is determined that the required power is greater than the maximum transmission power of the first signal, the required power is reduced according to the second power step size.

7. The method according to any one of claims 4-6, characterized in that, The required power is determined by the terminal device according to a first rule, including: The required power is the power that does not exceed the maximum transmission power of the first signal; or, The required power is the power that does not exceed the maximum transmission power of the first signal and meets the service requirements.

8. The method according to any one of claims 1-7, characterized in that, The second signal is determined by one or more of the following methods: The second signal is the signal that is closest to the first signal in the time domain; The time-domain distance between the second signal and the first signal is less than or less than and equal to the first threshold value; The second signal has the same frequency bandwidth as the first signal; The second signal occupies the same number of frequency domain resource units as the first signal; The second signal is transmitted using the same antenna port as the first signal; or The second signal uses the same beam as the first signal.

9. A signal transmission method, characterized in that, include: Receive first configuration information, which is used to configure periodic resources; The periodic resources are used to send the first signal and the second signal; A first signal is transmitted on a first resource based on a first power; A second signal is transmitted on a second resource based on a second power, wherein the first power and the second power are different, and the first resource and the second resource are resources in the periodic resource; the first signal is used for sensing, and the second signal is used for communication.

10. The method according to claim 9, characterized in that, The method further includes: Sending first information, which is associated with the first signal, and used to determine the transmission power of the first signal, the first information includes: The expected transmission power of the first signal; and / or A first request message, wherein the first request message is used to request adjustment of the transmission power of the first signal; and / or The second request message is used to request the sending of the first signal.

11. The method according to claim 10, characterized in that, The first information is associated with the first signal and includes one or more of the following: The first signal is the signal transmitted on the most recent periodic resource after the first information; The first signal is the most recent second signal after the first information; MN < C * P, where M is the time domain location of the first information, N is the time domain location of the first signal, P is the period of the periodic resource, and C is a positive integer greater than or equal to 1; MN = offset1, where M is the time-domain location of the first information, N is the time-domain location of the first signal, and offset1 is the first offset value, or... M2-N = offset2, where M2 is the time domain location of the second information, N is the time domain location of the first signal, and offset2 is the second offset value.

12. The method according to claim 10 or 11, characterized in that, The method further includes: Receive a second message, which is used to respond to the first message.

13. The method according to claim 12, characterized in that, The second information includes one or more of the following: Confirm or reject the expected transmission power of the first signal; Confirm or reject adjusting the transmission power of the first signal; Confirm or refuse to send the first signal; Confirm that the first signal is transmitted at a power not exceeding the maximum transmission power of the first signal, or refuse to transmit the first signal; The power adjustment value of the first signal; The maximum transmission power of the first signal; or The first indication information is used to indicate the second signal.

14. The method according to claim 12 or 13, characterized in that, The method further includes: The transmission power of the first signal is determined based on the second information.

15. The method according to claim 14, characterized in that, Determining the transmission power of the first signal based on the second information includes: The transmission power of the first signal is determined based on the expected transmission power of the first signal and / or the power adjustment value of the first signal; or The transmission power of the first signal is determined based on the first indication information; or The transmission power of the second signal is calculated based on the ratio of the frequency domain resources of the first signal and the second signal, and the transmission power of the first signal is determined based on the first power adjustment factor. Wherein, the transmission power of the first signal does not exceed the maximum transmission power of the first signal.

16. The method according to claim 15, characterized in that, The method further includes: The transmission power of the first signal is determined according to a third power adjustment factor, which is determined by the terminal device or other terminal devices or network devices.

17. The method according to claim 9, characterized in that, The method further includes: Receive second configuration information, which is used to indicate a first resource among the periodic resources.

18. The method according to claim 17, characterized in that, The method further includes: The first signal is transmitted at a power not exceeding the maximum transmission power of the first signal.

19. The method according to claim 17 or 18, characterized in that, The method further includes: Send a third piece of information, which includes: service requirement information and / or terminal device capability information.

20. A signal receiving method, characterized in that, include: Send first configuration information, which is used to configure periodic resources; The periodic resources are used to receive the first signal and the second signal; A third signal is received on the first resource based on the third power, wherein the third signal is the signal reflected back from the sensing target by the first signal; A second signal is received on a second resource based on a fourth power, wherein the third power is different from the fourth power, and the first resource and the second resource are resources in the periodic resource; the first signal is used for sensing, and the second signal is used for communication.

21. The method according to claim 20, characterized in that, The method further includes: Receive first information, which is associated with the first signal, and is used to determine the transmission power of the first signal. The first information includes: The expected transmission power of the first signal; and / or A first request message, wherein the first request message is used to request adjustment of the transmission power of the first signal; and / or The second request message is used to request the sending of the first signal.

22. The method according to claim 21, characterized in that, The first information is associated with the first signal and includes one or more of the following: The first signal is the signal transmitted on the most recent periodic resource after the first information; The first signal is the most recent second signal after the first information; MN < C * P, where M is the time domain location of the first information, N is the time domain location of the first signal, P is the period of the periodic resource, and C is a positive integer greater than or equal to 1; MN = offset1, where M is the time-domain location of the first information, N is the time-domain location of the first signal, and offset1 is the first offset value, or... M2-N = offset2, where M2 is the time domain location of the second information, N is the time domain location of the first signal, and offset2 is the second offset value.

23. The method according to claim 21 or 22, characterized in that, The method further includes: Send a second message, which is used to respond to the first message.

24. The method according to claim 23, characterized in that, The second information includes one or more of the following: Confirm or reject the expected transmission power of the first signal; Confirm or reject adjusting the transmission power of the first signal; Confirm or refuse to send the first signal; Confirm that the first signal is transmitted at a power not exceeding the maximum transmission power of the first signal, or refuse to transmit the first signal; the power adjustment value of the first signal; The maximum transmission power of the first signal; or The first indication information is used to indicate the second signal.

25. The method according to any one of claims 20-24, characterized in that, The method further includes: Send second configuration information, which is used to indicate the first resource in the periodic resources.

26. The method according to claim 25, characterized in that, The method further includes: The first signal is received at a power not exceeding the maximum transmission power of the first signal.

27. The method according to claim 25 or 26, characterized in that, The method further includes: Receive third information, which includes: service requirement information and / or terminal device capability information.

28. A signal transmitting or receiving device, characterized in that, The apparatus includes a transceiver unit and a processing unit, wherein the processing unit is configured to perform the processing operation in the method as described in any one of claims 1-8, 9-19, or 20-27, and the transceiver unit is configured to perform the transceiver operation in the method as described in any one of claims 1-8, 9-19, or 20-27.

29. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores a computer program or instructions that, when executed on a processor, implement the method as described in any one of claims 1-27.

30. A computer program product, characterized in that, The computer program product includes a computer program or instructions that, when run on a computer, implement the method as described in any one of claims 1-27.

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