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

Abstract

A method and apparatus in a communication node used for wireless communication are disclosed. The communication node transmits a first signal; monitors for an echo of the first signal in a first time interval in conjunction with the transmission of the first signal; the first time interval is dependent on the transmission of the first signal and the first time interval is dependent on a first set of parameters; at least part of the first set of parameters is configurable or at least part of the first set of parameters is determined by the first node. The proposed scheme takes into account the characteristics of the echo of the first signal and optimizes the time for monitoring the echo of the first signal.

Description

A method and apparatus for use in a communication node for wireless communication

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on January 23, 2024, with application number 202410095343.4 and invention name “A method and device in a communication node used for wireless communication”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular to an echo monitoring method and apparatus. Background Art

[0003] With the growing demand for sensing, the convergence of sensing and communication capabilities in networks is becoming increasingly evident. ITU-R WP 5D is studying application scenarios for Integrated Sensing and Communication (ISAC) technology for 6G. 3GPP (the 3rd Generation Partnership Project) released Technical Report 22.837 (Rel-19), "Feasibility Study of Integrated Sensing and Communication," which outlines 26 different use cases and integrates potential requirements and key performance indicators (KPIs) for ISAC. The 3GPP RAN 102nd meeting adopted the Study Item (SI), "Study on channel modeling for Integrated Sensing and Communication (ISAC) for NR." The SI focuses on defining channel modeling to support detection and / or tracking of targets, including drones, people indoors and outdoors, cars (at least outdoors), automated guided vehicles (e.g., in indoor factories), and hazardous objects on roads and railways. Summary of the Invention

[0004] For monostatic sensing, after a UE sends a signal, it needs to receive the echo of that signal. The inventors have discovered that the time interval during which the UE monitors the echo of this signal may affect the transmission of other communication signals / channels of the UE. Therefore, how to determine this time interval requires further research.

[0005] In response to the above problems, the present application provides an echo monitoring solution. In the description of the above problem, the NR system is used as an example. The present application is also applicable to scenarios such as 5.5G system or 6G system, and achieves technical effects similar to those of the NR system. Furthermore, although the present application provides a specific implementation method for single-station perception, the present application can also be used in scenarios such as dual-station perception, and achieve technical effects similar to those of single-station perception. Furthermore, adopting a unified design solution for different scenarios can also help reduce hardware complexity and cost. Furthermore, although the original intention of the present application is for the Uu air interface, the present application can also be used for the PC5 port, and achieve technical effects similar to those of the Uu air interface. Furthermore, although the original intention of the present application is for the terminal and base station scenario, the present application is also applicable to V2X (Vehicle-to-Everything) scenario, the communication scenario between the terminal and the relay, and the relay and the base station, and achieve technical effects similar to those in the terminal and base station scenario. Furthermore, although the original intention of this application is for the terminal and base station scenario, this application is also applicable to the IAB (Integrated Access and Backhaul) communication scenario, and achieves technical effects similar to those in the terminal and base station scenario. Furthermore, although the original intention of this application is for the licensed frequency band, this application is also applicable to the unlicensed frequency band communication scenario, and achieves technical effects similar to those in the licensed frequency band scenario. Furthermore, although the original intention of this application is for the terrestrial network (TN) scenario, this application is also applicable to the non-terrestrial network (NTN) communication scenario, and achieves technical effects similar to those in the TN scenario. In addition, adopting a unified solution for different scenarios can also help reduce hardware complexity and cost.

[0006] As an embodiment, the interpretation of the terms in this application refers to the definition of the 3GPP specification protocol TS38 series.

[0007] As an embodiment, the interpretation of the terms in this application refers to the definitions of the 3GPP specification protocol TS37 series.

[0008] It should be noted that, in the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0009] The present application discloses a method in a first node used for wireless communication, characterized by comprising:

[0010] sending a first signal;

[0011] a first receiver, configured to monitor an echo of the first signal during a first time interval following the transmission of the first signal;

[0012] The first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set.

[0013] As an embodiment, at least part of the first parameter set is configurable.

[0014] As an embodiment, at least part of the first parameter set is determined by the first node.

[0015] As an embodiment, the problem to be solved by the present application includes: how to monitor the echo of the first signal.

[0016] As an embodiment, the echo of the first signal is monitored in a first time interval, thereby solving the above problem.

[0017] As an embodiment, the above method reduces the monitoring time by using the first time interval to reduce the UE power consumption.

[0018] As an embodiment, the above method improves the correct detection probability through the first time interval.

[0019] As an embodiment, the above method reduces the probability of false detection through the first time interval.

[0020] As an embodiment, the above method reduces the impact on the transmission of other communication signals / channels through the first time interval.

[0021] As an embodiment, the problem to be solved by the present application includes: how to determine the first time interval.

[0022] As an embodiment, the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set, thereby solving the above problem.

[0023] As an embodiment, the first time interval is determined by the sending of the first signal and the first parameter set, thereby solving the above problem.

[0024] As an embodiment, the first time interval in the above method takes into account the influence of the sending of the first signal and the first parameter set.

[0025] As an embodiment, the above method takes into account the characteristics of the echo of the first signal.

[0026] As an embodiment, the above method optimizes the first time interval.

[0027] As an embodiment, the above method avoids a first time interval that is too long or too short.

[0028] As an embodiment, the problem to be solved by this application includes: how to determine the first parameter set.

[0029] As an embodiment, at least part of the first parameter set is configurable, thereby solving the above problem.

[0030] As an embodiment, the above method is beneficial for network control.

[0031] As an embodiment, the above method is conducive to parameter adjustment.

[0032] As an embodiment, at least part of the first parameter set is determined by the first node, thereby solving the above problem.

[0033] As an embodiment, the above method is helpful in reducing signaling interaction.

[0034] As an embodiment, the above method is more flexible to implement.

[0035] As an embodiment, the above method is characterized by: monitoring the echo of the first signal in a first time interval.

[0036] According to one aspect of the present application, it is characterized in that the first parameter set includes a first distance; and the length of the first time interval depends on the first distance.

[0037] As an embodiment, the above method optimizes the length of the first time interval.

[0038] As an embodiment, the above method is helpful in improving the probability of correct detection.

[0039] As an embodiment, the above method is beneficial for detecting and / or tracking a target.

[0040] As an embodiment, the above method avoids detecting unnecessary or incorrect targets.

[0041] According to one aspect of the present application, it is characterized in that the first parameter set includes a second distance; the start time of the first time interval depends on the second distance; and the second distance is not greater than the first distance.

[0042] As an embodiment, the problem to be solved by the present application includes: how to determine the start time of the first time interval.

[0043] As an embodiment, the start time of the first time interval depends on the second distance, thereby solving the above problem.

[0044] As an embodiment, the above method avoids prematurely monitoring the echo of the first signal.

[0045] As an embodiment, the above method is helpful in improving the probability of correct detection.

[0046] As an embodiment, the above method is beneficial for detecting and / or tracking a target.

[0047] As an embodiment, the above method avoids detecting unnecessary or incorrect targets.

[0048] According to one aspect of the present application, it is characterized in that the first parameter set includes multiple candidate time intervals; the first time interval belongs to one of the multiple candidate time intervals; any two candidate time intervals among the multiple candidate time intervals do not overlap, and the multiple candidate time intervals are configurable.

[0049] As an embodiment, the problem to be solved by the present application includes: how to determine the first time interval.

[0050] As an embodiment, the first time interval belongs to a period in the periodic interval indicated by the first parameter set, thereby solving the above problem.

[0051] As an embodiment, the above method is helpful in reducing signaling interaction.

[0052] As an embodiment, the above method is helpful in avoiding overlap of perception time and communication time.

[0053] As an embodiment, the above method is conducive to the coordination of communication and perception.

[0054] According to one aspect of the present application, it is characterized in that the first parameter set includes the sending duration of the first signal; and the length of the first time interval depends on the sending duration of the first signal.

[0055] As an embodiment, the problem to be solved by the present application includes: how to determine the first time interval.

[0056] As an embodiment, the length of the first time interval depends on the sending duration of the first signal, thereby solving the above problem.

[0057] As an embodiment, the above method is helpful in reducing signaling interaction.

[0058] As an embodiment, the above method is conducive to monitoring the echo of the first signal.

[0059] As an embodiment, the above method is conducive to the coordination of communication and perception.

[0060] According to one aspect of the present application, it is characterized by comprising:

[0061] receiving a first reference signal;

[0062] The first parameter set depends on the first reference signal.

[0063] As an embodiment, the problem to be solved by this application includes: how to determine the first parameter set.

[0064] As an embodiment, the first parameter set depends on the received first reference signal, thereby solving the above problem.

[0065] As an embodiment, the above method facilitates the collaboration of communication and perception.

[0066] As an embodiment, the above method is conducive to dynamic adjustment of parameters.

[0067] As an embodiment, the above method optimizes the first parameter set.

[0068] According to one aspect of the present application, it is characterized by comprising:

[0069] sending first UE capability information, where the first UE capability information indicates a third distance;

[0070] The first parameter set depends on the third distance.

[0071] As an embodiment, the problem to be solved by this application includes: how to determine the first parameter set.

[0072] As an embodiment, the first parameter set depends on the third distance indicated by the first UE capability information, thereby solving the above problem.

[0073] As an embodiment, the above method takes into account the UE capability of the first node.

[0074] As an embodiment, the above method is conducive to adjusting parameters based on different UE capabilities.

[0075] According to one aspect of the present application, it is characterized by comprising:

[0076] Before the first signal is sent, sending first auxiliary information;

[0077] The first auxiliary information indicates the first time interval.

[0078] As an embodiment, the problem to be solved by the present application includes: how to avoid the influence of the transmission of other communication signals / channels within the first time interval.

[0079] As an embodiment, the problem to be solved by the present application includes: how to avoid the influence of the transmission of other communication signals / channels within the first time interval on the first signal.

[0080] As an embodiment, the above problem is solved by indicating the first time interval through the first auxiliary information.

[0081] According to one aspect of the present application, it is characterized by comprising:

[0082] receiving a first RRC (Radio Resource Control) message;

[0083] The first RRC message configures at least part of the first parameter set.

[0084] As an embodiment, the above method can shorten the delay compared with LPP messages.

[0085] According to one aspect of the present application, it is characterized in that the waveform used by the first signal is a frequency modulated wave.

[0086] The present application discloses a method used in a second node of wireless communication, characterized by comprising:

[0087] Sending a first RRC message;

[0088] The recipient of the first RRC message sends a first signal; accompanying the sending of the first signal, the recipient of the first RRC message monitors the echo of the first signal in a first time interval; the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; the first RRC message configures at least part of the first parameter set.

[0089] According to one aspect of the present application, it is characterized in that the first parameter set includes a first distance; and the length of the first time interval depends on the first distance.

[0090] According to one aspect of the present application, it is characterized in that the first parameter set includes a second distance; the start time of the first time interval depends on the second distance; and the second distance is not greater than the first distance.

[0091] According to one aspect of the present application, it is characterized in that the first parameter set includes multiple candidate time intervals; the first time interval belongs to one of the multiple candidate time intervals; any two candidate time intervals among the multiple candidate time intervals do not overlap, and the multiple candidate time intervals are configurable.

[0092] According to one aspect of the present application, it is characterized in that the first parameter set includes the sending duration of the first signal; and the length of the first time interval depends on the sending duration of the first signal.

[0093] According to one aspect of the present application, it is characterized by comprising:

[0094] sending a first reference signal;

[0095] The first parameter set depends on the first reference signal.

[0096] According to one aspect of the present application, it is characterized by comprising:

[0097] receiving first UE capability information, where the first UE capability information indicates a third distance;

[0098] The first parameter set depends on the third distance.

[0099] According to one aspect of the present application, it is characterized by comprising:

[0100] receiving first auxiliary information;

[0101] Before the first signal is sent, the recipient of the first RRC message sends first auxiliary information; the first auxiliary information indicates the first time interval.

[0102] According to one aspect of the present application, it is characterized in that the waveform used by the first signal is a frequency modulated wave.

[0103] The present application discloses a first node used for wireless communication, characterized by comprising:

[0104] A first transmitter sends a first signal;

[0105] a first receiver, configured to monitor an echo of the first signal during a first time interval following the transmission of the first signal;

[0106] The first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; at least part of the first parameter set is configurable or at least part of the first parameter set is determined by the first node.

[0107] The present application discloses a second node used for wireless communication, characterized by comprising:

[0108] A second transmitter sends a first RRC message;

[0109] The recipient of the first RRC message sends a first signal; accompanying the sending of the first signal, the recipient of the first RRC message monitors the echo of the first signal in a first time interval; the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; the first RRC message configures at least part of the first parameter set. BRIEF DESCRIPTION OF THE DRAWINGS

[0110] FIG1 shows a flow chart of transmission of a first signal and an echo of the first signal according to one embodiment of the present application;

[0111] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0112] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0113] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0114] FIG5 shows a wireless signal transmission flow chart according to an embodiment of the present application;

[0115] FIG6 is a schematic diagram showing how the length of a first time interval depends on a first distance according to an embodiment of the present application;

[0116] FIG7 is a schematic diagram showing that the start time of the first time interval depends on the second distance according to an embodiment of the present application;

[0117] FIG8 is a schematic diagram showing that a first time interval belongs to a period of a first candidate time interval according to an embodiment of the present application;

[0118] FIG9 shows a schematic diagram of a first signal and a first time interval according to an embodiment of the present application;

[0119] FIG10 is a schematic diagram showing a first signal using a linear frequency modulation wave according to an embodiment of the present application;

[0120] FIG11 is a schematic diagram showing a first signal and an echo of the first signal according to an embodiment of the present application;

[0121] FIG12 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0122] FIG13 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0123] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0124] Example 1

[0125] Example 1 illustrates a flow chart of the transmission of a first signal and an echo of the first signal according to an embodiment of the present application, as shown in FIG1 . In FIG1 , each box represents a step, and it is particularly important to emphasize that the order of the boxes in the figure does not represent the temporal sequence of the steps represented.

[0126] In Example 1, the first node in the present application sends a first signal in step 101; in step 102, accompanying the sending of the first signal, monitors the echo of the first signal in a first time interval; wherein the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; at least part of the first parameter set is configurable or at least part of the first parameter set is determined by the first node.

[0127] As an embodiment, the first signal is for detecting and / or tracking a target.

[0128] As an embodiment, the first signal is for positioning of a target.

[0129] As an embodiment, the first signal is for sensing of a target.

[0130] As an embodiment, the target is detected and / or tracked.

[0131] As an embodiment, the target is to be detected and / or tracked.

[0132] As an embodiment, the target is a reflector.

[0133] As an embodiment, the first signal is not any one of PUSCH (Physical uplink shared channel), PUCCH (Physical Uplink Control Channel), PRACH (Physical Random Access Channel), and SRS (Sounding Reference Signal).

[0134] As an embodiment, the first signal is not any one of PDSCH (Physical downlink shared channel), PDCCH (Physical downlink control channel), SSB (Synchronization Signal Block, or SS / PBCH block), (Channel State Information)-RS (Reference Signal).

[0135] As an embodiment, the first signal is not any one of PUSCH, PUCCH, PRACH, and SRS, and the first signal is not any one of PDSCH, PDCCH, SSB, and CSI-RS.

[0136] As an embodiment, the first signal is periodic.

[0137] As an embodiment, the above method reduces signaling overhead.

[0138] As an embodiment, the first signal is semi-continuous.

[0139] As an embodiment, the above method is beneficial for saving energy while reducing signaling overhead.

[0140] As an embodiment, the first signal is an on-demand service.

[0141] As an embodiment, the above method is beneficial to energy saving.

[0142] As an embodiment, the first signal is a physical signal.

[0143] As an embodiment, the first signal is a physical layer signal.

[0144] As an embodiment, the first signal is used for positioning.

[0145] As an embodiment, the first signal is not a PRS (Positioning Reference Signal).

[0146] As an embodiment, the first signal is a PRS.

[0147] As an embodiment, the above method reuses PRS to reduce standardization complexity.

[0148] As an embodiment, the one PRS is a specific PRS.

[0149] As an embodiment, the one PRS is a perception-specific PRS.

[0150] As an embodiment, the first signal is used for detection.

[0151] As an embodiment, the first signal is not an SRS.

[0152] As an embodiment, the first signal is an SRS.

[0153] As an embodiment, the above method reuses SRS to reduce standardization complexity.

[0154] As an embodiment, the one SRS is a specific SRS.

[0155] As an embodiment, the one SRS is a perception-specific SRS.

[0156] As an embodiment, the first signal is used for sensing.

[0157] As an embodiment, the first signal is a perception signal.

[0158] As an embodiment, the above method avoids perception and communication conflicts.

[0159] As an embodiment, the above method reduces protocol impact.

[0160] As an embodiment, the perception signal is an IRS (ISAC Reference Signal).

[0161] As an embodiment, the one perception signal is an ISAC perception signal.

[0162] As an embodiment, the one perception signal is an ISAC perception reference signal.

[0163] As an embodiment, the one perception signal is an ISAC reference signal.

[0164] As an embodiment, the sensing signal is a frequency sweep signal.

[0165] As an embodiment, the perception signal is a chirp signal.

[0166] As an embodiment, the perception signal is a special frequency modulation signal.

[0167] As an embodiment, the sensing signal is a linear frequency modulation pulse signal.

[0168] As an embodiment, the one perception signal adopts a single-frequency wave.

[0169] As an embodiment, the frequency of the single-frequency wave does not change with time.

[0170] As an embodiment, the single frequency wave is a single frequency continuous wave (2πft), wherein f is the frequency of the single-frequency wave and t is time.

[0171] As an embodiment, the perception signal adopts a frequency modulated wave.

[0172] As an embodiment, the frequency of the FM wave varies with time.

[0173] As an embodiment, the frequency modulated wave is a frequency modulated continuous wave (FMCW).

[0174] As an embodiment, the frequency modulated wave is a linear frequency modulated continuous wave.

[0175] As an embodiment, the frequency modulated wave is a sawtooth linear frequency modulated continuous wave.

[0176] As an embodiment, the frequency modulated wave is a triangular linear frequency modulated continuous wave.

[0177] As an embodiment, the frequency modulated wave is a segmented linear frequency modulated continuous wave.

[0178] As an embodiment, the frequency modulated wave is FMCW, and the Chirp of the FMCW is e^(jπβt^2 / τ).

[0179] As an embodiment, the frequency modulated wave is FMCW, and the Chirp of the FMCW is e^(jπ(βt+ω)t / τ).

[0180] As an embodiment, the sending of the first signal refers to: being sent as a response to the first signal.

[0181] As an embodiment, the sending accompanying the first signal refers to: being a response triggered by the first signal.

[0182] As an embodiment, the sending of the first signal refers to: when the first signal is sent.

[0183] As an embodiment, the sending of the first signal refers to: when the first signal is triggered.

[0184] As an embodiment, the sending of the first signal is atomic with the sending of the first signal.

[0185] As an embodiment, the echo is a reflected wave.

[0186] As an embodiment, the echo is a diffraction wave.

[0187] As an embodiment, the echo is a transmitted wave.

[0188] As an embodiment, the echo of the first signal is: an echo signal of the first signal.

[0189] As an embodiment, the echo of the first signal is: the first signal.

[0190] As an embodiment, the echo of the first signal is: at least one warp of the first signal.

[0191] As an embodiment, the echo of the first signal is: a warp of the first signal.

[0192] As an embodiment, the echo of the first signal is: multiple warps of the first signal.

[0193] As an embodiment, the echo of the first signal is: the first signal after passing through a specific wireless channel.

[0194] As an embodiment, the echo of the first signal is: a signal after the first signal has passed through a specific wireless channel.

[0195] As an embodiment, the echo of the first signal is at least one echo of the first signal.

[0196] As an embodiment, the echo of the first signal is an echo of the first signal.

[0197] As an embodiment, the echo of the first signal is multiple echoes of the first signal.

[0198] As an embodiment, the echo of the first signal is received within a given time interval.

[0199] As an embodiment, the echo of the first signal is detected within a given time interval.

[0200] As an embodiment, the first signal forms an echo of the first signal after passing through a reflector.

[0201] As an embodiment, the first signal forms an echo of the first signal after passing through a reflector.

[0202] As an embodiment, the first signal forms an echo of the first signal after passing through at least one reflector.

[0203] As an embodiment, the first signal forms multiple echoes of the first signal after passing through a reflector.

[0204] As an embodiment, the first signal is reflected, refracted, or diffracted in a wireless channel to form an echo of the first signal.

[0205] As an embodiment, the first signal is reflected, refracted, or diffracted by one or more reflectors in a wireless channel to form an echo of the first signal.

[0206] As an embodiment, the one or more reflectors include the second node, a user carrying the second node, or a device carrying the second node.

[0207] As an embodiment, the one or more reflectors do not include the second node, a user carrying the second node, or a device carrying the second node.

[0208] As an embodiment, the reception parameters of the echo of the first signal are the same as the transmission parameters of the first signal.

[0209] As an embodiment, the reception parameters of the echo of the first signal are related to the transmission parameters of the first signal.

[0210] As an embodiment, the correlation refers to mutual inference.

[0211] As an embodiment, the correlation refers to the existence of a dependency relationship.

[0212] As an embodiment, the correlation refers to being the same or similar.

[0213] As an embodiment, the correlation refers to similarity.

[0214] As an embodiment, the correlation refers to mutual difference.

[0215] As an embodiment, the correlation refers to reciprocity.

[0216] As an embodiment, the correlation refers to symmetry.

[0217] As an embodiment, the receiving parameter is a receiving angle, and the transmitting parameter is a sending angle.

[0218] As an embodiment, the receiving parameter is a receiving beam, and the transmitting parameter is a transmitting beam.

[0219] As an embodiment, the receiving parameter is the receiving time, and the transmitting parameter is the sending time.

[0220] As an embodiment, the receiving parameter is the receiving bandwidth, and the transmitting parameter is the sending bandwidth.

[0221] As an embodiment, the receiving parameter is the receiving frequency, and the transmitting parameter is the sending frequency.

[0222] As an embodiment, the receiving parameter is a receiving spatial filter parameter, and the transmitting parameter is a sending spatial filter parameter.

[0223] As an embodiment, the receiving parameter is a receiving array antenna steering vector, and the transmitting parameter is a transmitting array antenna steering vector.

[0224] As an embodiment, the receiving parameter is the number of receiving antennas, and the transmitting parameter is the number of transmitting antennas.

[0225] As an embodiment, the receiving parameter is the number of receiving MIMO (Multiple Input Multiple Output) layers, and the transmitting parameter is the number of sending MIMO layers.

[0226] As an embodiment, the receiving parameter is receiving power, and the transmitting parameter is transmitting power.

[0227] As an embodiment, the receiving parameter is receive beamforming, and the transmitting parameter is transmit beamforming.

[0228] As an embodiment, the receiving parameter is a receiving waveform, and the transmitting parameter is a sending waveform.

[0229] As an embodiment, the monitoring includes: target identification.

[0230] As an embodiment, the monitoring includes: target extraction.

[0231] As an embodiment, the monitoring includes: clutter suppression processing.

[0232] As an embodiment, the monitoring includes: processing.

[0233] As an embodiment, the monitoring includes: judging.

[0234] As an embodiment, the monitoring includes: receiving.

[0235] As an embodiment, the monitoring includes: measurement.

[0236] As an embodiment, the monitoring includes: sampling.

[0237] As an embodiment, the monitoring includes: detection.

[0238] As an embodiment, the monitoring includes: oblique processing.

[0239] As an embodiment, the monitoring includes: estimating.

[0240] As an embodiment, the monitoring includes filtering.

[0241] As an embodiment, the monitoring refers to: monitor.

[0242] As an embodiment, the monitoring refers to: detection.

[0243] As an embodiment, the monitoring refers to: receiving.

[0244] As an embodiment, monitoring the echo of the first signal includes: performing correlation detection on the echo of the first signal.

[0245] As an embodiment, monitoring the echo of the first signal includes: performing autocorrelation detection on the echo of the first signal.

[0246] As an embodiment, monitoring the echo of the first signal includes: performing MSE (mean square error) detection on the echo of the first signal.

[0247] As an embodiment, monitoring the echo of the first signal includes: performing maximum likelihood detection on the echo of the first signal.

[0248] As an embodiment, monitoring the echo of the first signal includes: performing a binary hypothesis test on the echo of the first signal.

[0249] As an embodiment, monitoring the echo of the first signal includes: performing filtering detection on the echo of the first signal.

[0250] As an embodiment, monitoring the echo of the first signal includes: performing a constant false alarm rate (CFAR) detection on the echo of the first signal.

[0251] As an embodiment, monitoring the echo of the first signal includes: sampling the echo of the first signal.

[0252] As an embodiment, monitoring the echo of the first signal includes: filtering the echo of the first signal.

[0253] As an embodiment, the filtering is matched filtering.

[0254] As a sub-embodiment of the above embodiment, the matched filter is a time-domain matched filter.

[0255] As a sub-embodiment of the above embodiment, the matched filter is a frequency domain matched filter.

[0256] As an embodiment, the filtering is a low-pass filtering.

[0257] As an embodiment, the filtering is a high-pass filtering.

[0258] As an embodiment, the filtering is bandpass filtering.

[0259] As an embodiment, the filtering is band-stop filtering.

[0260] As an embodiment, the filtering is a Kalman filter.

[0261] As an embodiment, whether the echo of the first signal exists is determined by monitoring the echo of the first signal.

[0262] As an embodiment, whether a measurement result of the echo of the first signal meets a target threshold is determined by monitoring the echo of the first signal.

[0263] As an embodiment, the target threshold is a signal measurement threshold.

[0264] As an embodiment, the target threshold is a detection threshold.

[0265] As an embodiment, the target threshold is a detection threshold.

[0266] As an embodiment, satisfying the target threshold means being greater than the target threshold.

[0267] As an embodiment, satisfying the target threshold means: not less than the target threshold.

[0268] As an embodiment, satisfying the target threshold means being less than the target threshold.

[0269] As an embodiment, satisfying the target threshold means: not greater than the target threshold.

[0270] As an embodiment, the measurement result of the echo of the first signal is a correct detection probability.

[0271] As an embodiment, the measurement result of the echo of the first signal is a false detection probability.

[0272] As an embodiment, the measurement result of the echo of the first signal is a false alarm probability.

[0273] As an embodiment, the measurement result of the echo of the first signal is a mean square error (MSE).

[0274] As an embodiment, the measurement result of the echo of the first signal is RSRP.

[0275] As an embodiment, the measurement result of the echo of the first signal is RSRQ.

[0276] As an embodiment, the measurement result of the echo of the first signal is SINR.

[0277] As an embodiment, the measurement result of the echo of the first signal is BLER.

[0278] As an embodiment, the measurement result of the echo of the first signal is unfiltered.

[0279] As an embodiment, the measurement result of the echo of the first signal is L1 filtered.

[0280] As an embodiment, the measurement result of the echo of the first signal is L3 filtered.

[0281] As an embodiment, satisfying the target threshold means: being greater than the target threshold, or not less than the target threshold; the measurement result of the echo of the first signal is one of the correct detection probability or RSRP (Reference Signal Received Power) or RSRPP (reference signal received path power) or RSRQ (Reference Signal Received quality) or SINR (Signal to Interference plus Noise Ratio).

[0282] As an embodiment, satisfying the target threshold means: being less than the target threshold, or not greater than the target threshold; the measurement result of the echo of the first signal is one of the false detection probability or the false alarm probability or the BLER or the mean square error.

[0283] As an embodiment, the first time interval is a time window.

[0284] As an embodiment, the first time interval is a timer.

[0285] As an embodiment, the first time interval includes at least one time unit.

[0286] As an embodiment, the first time interval is an observation time.

[0287] As an embodiment, the unit of the time unit is millisecond (ms).

[0288] As an embodiment, the unit of the time unit is microsecond (μs).

[0289] As an embodiment, the unit of the time unit is nanosecond (ns).

[0290] As an embodiment, the time unit is Tc.

[0291] As an embodiment, the time unit is a symbol.

[0292] As an embodiment, the time unit is (y / x)Tc.

[0293] As an embodiment, the time unit is a (y / x) symbol.

[0294] As an embodiment, x is an integer greater than 1; y is an integer not less than 1.

[0295] As an embodiment, y is 1.

[0296] As an embodiment, y is greater than 1.

[0297] As an embodiment, the symbol is a multi-carrier symbol.

[0298] As an embodiment, the symbols are used in a NR system.

[0299] As an embodiment, the symbols are used in a 6G system.

[0300] As an embodiment, the symbols are used in a positioning system.

[0301] As an embodiment, the symbols are used in a perception system.

[0302] As an example, the symbols are used in an ISAC system.

[0303] As an embodiment, the symbol is an OFDM (Orthogonal Frequency Division Multiplexing) symbol.

[0304] As an embodiment, the symbol is an OFDMA (OFDM Access) symbol.

[0305] As an embodiment, the symbol is a CP-OFDM symbol.

[0306] As an embodiment, the symbol is a DFT-S-OFDM symbol.

[0307] As an embodiment, the symbol is an FMCW symbol.

[0308] As an embodiment, the symbol is an OTFS (Orthogonal Time Frequency Space) symbol.

[0309] As an embodiment, the time unit depends on the first parameter set.

[0310] As an embodiment, the time unit depends on the subcarrier spacing.

[0311] As an embodiment, within the first time interval, the first node does not receive unicast.

[0312] As an embodiment, within the first time interval, the first node does not receive PDSCH or at least one of PDCCHs scrambled by C(cell)-RNTI (Radio Network Temporary Identifier) ​​or CS (Configured Scheduling)-RNTI or MCS (Modulation Coding Scheme)-C(Cell)-RNTI.

[0313] As an embodiment, within the first time interval, the first node does not send at least one of PUSCH, PUCCH or PRACH.

[0314] As an embodiment, the first signal is sent in a first time domain resource and a first frequency domain resource.

[0315] As an embodiment, the first signal is sent on a first time domain resource and a first frequency domain resource.

[0316] As an embodiment, the first signal occupies first time domain resources and first frequency domain resources.

[0317] As an embodiment, the first time domain resources and the first frequency domain resources are configured on a serving cell.

[0318] As an embodiment, the first time domain resource and the first frequency domain resource are configured on one BWP (Band Width, bandwidth part).

[0319] As an embodiment, the first time domain resources and the first frequency domain resources are configured on a downlink (DL) carrier.

[0320] As an embodiment, the first time domain resources and the first frequency domain resources are configured on an uplink (UL) carrier.

[0321] As an embodiment, the first time domain resource and the first frequency domain resource are configured on a SUL (Supplementary Uplink).

[0322] As an embodiment, the first time domain resources and the first frequency domain resources are configured on a sidelink (SL) carrier.

[0323] As an embodiment, the first time domain resource and the first time interval overlap.

[0324] As a sub-embodiment of the above embodiment, the first time domain resource belongs to the first time interval.

[0325] As a sub-embodiment of the above embodiment, the first time domain resource is the first time interval.

[0326] As a sub-embodiment of the above embodiment, the first signal is sent in the first time interval and an echo of the first signal is monitored in the first time interval.

[0327] As a sub-embodiment of the above embodiment, part of the first time domain resources belongs to the first time interval, and part of the first time domain resources does not belong to the first time interval.

[0328] As an embodiment, the first time domain resource and the first time interval do not overlap.

[0329] As a sub-embodiment of the above embodiment, the first time domain resource does not belong to the first time interval.

[0330] As a sub-embodiment of the above embodiment, the first time domain resource and the first time interval are orthogonal.

[0331] As an embodiment, the first time domain resource includes at least one time unit.

[0332] As an embodiment, the number of time units included in the first time domain resource is configurable.

[0333] As an embodiment, the number of time units included in the first time domain resource is predefined.

[0334] As an embodiment, the time domain position of the first time domain resource is predefined.

[0335] As an embodiment, the time domain position of the first time domain resource is configurable.

[0336] As an embodiment, the time domain location of the first time domain resource is configured by the network.

[0337] As an embodiment, the time domain position of the first time domain resource is determined by the first node.

[0338] As an embodiment, the first frequency domain resources are predefined.

[0339] As an embodiment, the first frequency domain resources are configurable.

[0340] As an embodiment, the first frequency domain resources are configured by the network.

[0341] As an embodiment, the first frequency domain resources include at least one frequency.

[0342] As an embodiment, the first frequency domain resource includes a bandwidth.

[0343] As an embodiment, the start time of the first time interval depends on the sending of the first signal.

[0344] As an embodiment, the start time of the first time interval is the start time of the K1th time unit occupied by the first signal; the number of time units occupied by the first signal is not less than K1, and K1 is a positive integer.

[0345] As an embodiment, the start time of the first time interval is the end time of the K1th time unit occupied by the first signal; the number of time units occupied by the first signal is not less than K1, and K1 is a positive integer.

[0346] As an embodiment, the number of time units occupied by the first signal is smaller than K1.

[0347] As an embodiment, the number of time units occupied by the first signal is equal to K1.

[0348] As an embodiment, K1 is 1.

[0349] As an embodiment, K1 is greater than 1.

[0350] As an embodiment, K1 is configurable.

[0351] As an embodiment, K1 is predefined.

[0352] As an embodiment, the start time of the first time interval depends on the sending of the first signal and the first parameter set.

[0353] As an embodiment, the length of the first time interval depends on the first parameter set.

[0354] As an embodiment, the length of the first time interval is related to the first parameter set.

[0355] As an embodiment, the length of the first time interval is related to the first parameter set.

[0356] As an embodiment, the length of the first time interval is linearly related to the first parameter set.

[0357] As an embodiment, the length of the first time interval is non-linearly related to the first parameter set.

[0358] As an embodiment, the length of the first time interval varies with the change of the first parameter set.

[0359] As an embodiment, the first parameter set is used to determine the length of the first time interval.

[0360] As an embodiment, the first parameter set is used to calculate the length of the first time interval.

[0361] As an embodiment, the first parameter set is used to derive the length of the first time interval.

[0362] As an embodiment, the first parameter set explicitly indicates the length of the first time interval.

[0363] As an embodiment, the first parameter set implicitly indicates the length of the first time interval.

[0364] As an embodiment, the first parameter set includes the length of the first time interval.

[0365] As an embodiment, the first parameter set includes an index of the length of the first time interval.

[0366] As an embodiment, the length of the first time interval depends on the sending of the first signal and the first parameter set.

[0367] As an embodiment, at least part of the first parameter set is configurable.

[0368] As an embodiment, the RRC sublayer configures at least part of the first parameter set.

[0369] As an embodiment, the LPP (LTE (Long-Term Evolution) Positioning Protocol) layer configures at least part of the first parameter set.

[0370] As an embodiment, at least part of the first parameter set is determined by the first node.

[0371] As an embodiment, the first node determines at least a portion of the first set of parameters based on implementation.

[0372] As an embodiment, the first node determines at least part of the first parameter set based on preconfigured parameters.

[0373] As an embodiment, the first node determines at least a portion of the first parameter set based on a moving speed of the first node.

[0374] As an embodiment, the first node determines at least part of the first parameter set based on a moving speed of the target.

[0375] As an embodiment, at least part of the first parameter set is configurable and at least part of the first parameter set is determined by the first node.

[0376] Example 2

[0377] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG2 . FIG2 illustrates a network architecture 200 . The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or the network architecture 200 is a 5G+ network architecture, or the network architecture 200 is a 6G network architecture, or the network architecture 200 is a network architecture that will continue to evolve in the future by 3GPP; the network architecture 200 may be called a 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 may be called a 6GS (6G System); the network architecture 200 includes at least one of a UE (User Equipment) 201, a RAN (Radio Access Network) 202, a core network 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and an Internet service 230. The network architecture 200 can interconnect with other access networks, but for simplicity, these entities / interfaces are not shown. As shown, the network architecture 200 provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 can be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter / receiver node), or some other appropriate terminology. The core network 210 is a 5G Core Network (5G Core Network) / EPC (Evolved Packet Core), or alternatively, a 6G Core Network; node 203 provides an access point to the core network 210 for UE 201.Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) / LMF (Location Management Function) 211, other MMEs / AMFs / SMFs / LMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF / LMF 211 is the control node that handles signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF / LMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet Services 230. The Internet Services 230 includes the operator's corresponding Internet Protocol services, which may include the Internet, Intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0378] As an embodiment, the UE 201 is a user equipment (UE).

[0379] As an embodiment, the UE 201 is a base station (BS).

[0380] As an embodiment, the UE 201 is a relay device.

[0381] As an embodiment, the UE 201 is a gateway device.

[0382] As an embodiment, the UE 201 supports LPP.

[0383] As an embodiment, the UE 201 supports NRPP (NR Positioning Protocol).

[0384] As an embodiment, the UE 201 supports NRPPa (NR Positioning Protocol A).

[0385] As an embodiment, the UE 201 supports SPP (sensing Positioning Protocol).

[0386] As an embodiment, the UE 201 supports perception.

[0387] As an embodiment, the UE 201 supports bistatic sensing.

[0388] As an embodiment, the UE 201 supports monostatic awareness.

[0389] As an embodiment, the UE 201 supports beam sweeping.

[0390] As an embodiment, the UE201 supports low-latency and high-reliability transmission.

[0391] As an embodiment, the UE 201 supports at least one of a non-terrestrial network (NTN) or a terrestrial network (Terrestrial Network).

[0392] As an embodiment, the UE 201 supports dual connectivity (Dual Connection, DC).

[0393] As an embodiment, the UE 201 supports sensing.

[0394] As an embodiment, the UE 201 supports positioning.

[0395] As an embodiment, the UE 201 supports ISAC.

[0396] As an embodiment, the UE 201 supports V2X.

[0397] As an embodiment, the UE 201 supports UAV.

[0398] As an embodiment, the UE 201 supports full-duplex.

[0399] As an embodiment, the node 203 corresponds to the second node in this application.

[0400] As an embodiment, the node 203 is a base station device.

[0401] As an embodiment, the node 203 is a user equipment.

[0402] As an embodiment, the node 203 is a relay device.

[0403] As an embodiment, the node 203 is a gateway device.

[0404] Typically, the UE 201 is a user equipment, and the node 203 is a base station device.

[0405] Typically, the UE 201 is a user equipment, and the node 203 is a user equipment.

[0406] Typically, the UE 201 is a base station device, and the node 203 is a base station device.

[0407] As an embodiment, the user equipment is a mobile terminal.

[0408] As an embodiment, the user device is a mobile phone or a tablet.

[0409] As an embodiment, the user equipment is an aircraft.

[0410] As an embodiment, the user device is an Internet of Things device, and the Internet of Things device is an Internet of Things terminal or a vehicle-mounted terminal or a ship or an industrial Internet of Things terminal.

[0411] As an embodiment, the user equipment is a test device or a signaling tester.

[0412] As an embodiment, the user equipment is an IAB (Integrated Access and Backhaul)-MT.

[0413] As an embodiment, the base station device supports transmission in a non-terrestrial network.

[0414] As an embodiment, the base station device supports transmission of a terrestrial network.

[0415] As an embodiment, the base station device is a macro cellular (Marco Cellular) base station or a micro cell (Micro Cell) base station or a pico cell (Pico Cell) base station or a home base station (Femtocell); the base station device is a base transceiver station (Base Transceiver Station, BTS) or a node B (NodeB, NB) or a gNB or an eNB or an ng-eNB or an en-gNB.

[0416] As an embodiment, the base station device includes at least one of a CU (Centralized Unit), a DU (Distributed Unit), or a TRP (Transmitter Receiver Point).

[0417] As an embodiment, the base station device is an aerial node, and the aerial node is a flight platform device, a satellite device, or an NTN base station.

[0418] As an embodiment, the base station device is a test device or a signaling tester.

[0419] As an embodiment, the base station device is a gateway device.

[0420] As an embodiment, the base station device is a RAN node.

[0421] As an embodiment, the RAN node is a NG-RAN node.

[0422] As an embodiment, the RAN node is a gNB.

[0423] As an embodiment, the RAN node is an ng-eNB.

[0424] As an embodiment, the RAN node is a NodeB.

[0425] As an embodiment, the RAN node is an eNodeB.

[0426] As an embodiment, the base station device is an IAB node, and the IAB node is an IAB-node or an IAB-donor or an IAB-donor-CU or an IAB-donor-DU or an IAB-DU or an IAB-MT.

[0427] As an embodiment, the relay device is a relay, and the relay is an L3 relay, an L2 relay, or an L1 relay.

[0428] As an embodiment, the relay device is a router.

[0429] As an embodiment, the relay device is a RIS.

[0430] As an embodiment, the relay device is a switch or a gateway device.

[0431] As an embodiment, the relay device is a user equipment.

[0432] As an embodiment, the relay device is a network device.

[0433] Example 3

[0434] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in FIG3 . FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for the control plane 300 using at least Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and supports inter-zone mobility. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture in the user plane 350 is generally identical to the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS flows to data radio bearers (DRBs) to support service diversity.

[0435] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0436] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0437] As an embodiment, at least a portion of the first parameter set in the present application is generated in the RRC306.

[0438] As an embodiment, at least a portion of the first parameter set in the present application is generated at a higher layer.

[0439] As an embodiment, the first signal in the present application is generated by the PHY301 or PHY351.

[0440] As an embodiment, the first signal in the present application is generated by the PHY301 or PHY351.

[0441] As an embodiment, the first reference signal in the present application is generated by the PHY301 or PHY351.

[0442] As an embodiment, the first UE capability information in this application is generated in the RRC306.

[0443] As an embodiment, the first UE capability information in this application is generated by the MAC302 or MAC352.

[0444] As an embodiment, the first UE capability information in this application is generated at a higher layer.

[0445] As an embodiment, the first auxiliary information in this application is generated in the RRC306.

[0446] As an embodiment, the first auxiliary information in this application is generated by the MAC302 or MAC352.

[0447] As an embodiment, the first auxiliary information in this application is generated at a higher layer.

[0448] As an embodiment, the first RRC message in this application is generated in the RRC306.

[0449] As an embodiment, the radio protocol architecture of the control plane 300 may further include a NAS (Non Access Stratum) layer 307 .

[0450] As an embodiment, the NAS layer 307 is responsible for supporting the mobility of the user equipment (UE) (including common procedures such as authentication, identification, common UE configuration update and security mode control procedures), and / or, supporting session management procedures to establish and maintain data connectivity between the terminal and the data network, and / or, providing SMS, LPP, LCS, UE policy container, SOR transparent container and UE parameter update information payload.

[0451] As an embodiment, at least part of the first parameter set in the present application is generated in the NAS layer 307 .

[0452] As an embodiment, the first UE capability information in this application is generated in the NAS layer 307.

[0453] As an embodiment, the first auxiliary information in this application is generated in the NAS layer 307.

[0454] As an embodiment, the radio protocol architecture of the control plane 300 may further include an LPP layer 308 .

[0455] As an embodiment, the LPP layer 308 is used point-to-point between a location server (E-SMLC, LMF or SLP) and a target device (UE or SET) to locate the target device using location-related measurements obtained from one or more reference sources.

[0456] As an embodiment, at least part of the first parameter set in the present application is generated in the LPP layer 308 .

[0457] As an embodiment, the first UE capability information in this application is generated in the LPP layer 308.

[0458] As an embodiment, the first auxiliary information in this application is generated in the LPP layer 308 .

[0459] Example 4

[0460] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0461] The first communication device 450 includes a controller / processor 459 , a memory 460 , a data source 467 , a transmit processor 468 , a receive processor 456 , a multi-antenna transmit processor 457 , a multi-antenna receive processor 458 , a transmitter / receiver 454 and an antenna 452 .

[0462] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 , and an antenna 420 .

[0463] During transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to the controller / processor 475 at the second communication device 410. The controller / processor 475 implements L2 layer functionality. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0464] During transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a fast Fourier transform (FFT). In the frequency domain, the receive processor 456 demultiplexes the physical layer data signal and reference signal, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 layer for L3 processing.

[0465] During transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functionality at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, the stream is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0466] During transmission from the first communications device 450 to the second communications device 410, the functionality at the second communications device 410 is similar to the reception functionality at the first communications device 450 described for transmission from the second communications device 410 to the first communications device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. A controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. During transmission from the first communications device 450 to the second communications device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0467] As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: sends a first signal; a first receiver, accompanying the sending of the first signal, monitors the echo of the first signal in a first time interval; wherein the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; at least part of the first parameter set is configurable or at least part of the first parameter set is determined by the first node.

[0468] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, the actions including: sending a first signal; a first receiver, accompanying the sending of the first signal, monitoring the echo of the first signal in a first time interval; wherein the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; at least part of the first parameter set is configurable or at least part of the first parameter set is determined by the first node.

[0469] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used with the at least one processor. The second communication device 410 at least: sends a first RRC message; wherein a recipient of the first RRC message sends a first signal; concomitant with the sending of the first signal, the recipient of the first RRC message monitors an echo of the first signal in a first time interval; the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; and the first RRC message configures at least a portion of the first parameter set.

[0470] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, the actions including: sending a first RRC message; wherein the recipient of the first RRC message sends a first signal; accompanying the sending of the first signal, the recipient of the first RRC message monitors the echo of the first signal in a first time interval; the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; the first RRC message configures at least part of the first parameter set.

[0471] As an embodiment, at least one of the antenna 452 , the receiver 454 , the receive processor 456 , and the controller / processor 459 is used to monitor the echo of the first signal.

[0472] As an embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 is used to transmit a first signal.

[0473] As an embodiment, at least one of the antenna 452 , the receiver 454 , the receive processor 456 , and the controller / processor 459 is used to receive a first reference signal.

[0474] As an embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller / processor 475 is used to transmit a first reference signal.

[0475] As an embodiment, at least one of the antenna 452, the receiver 454, the receiving processor 456, and the controller / processor 459 is used to receive a first RRC message.

[0476] As an embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller / processor 475 is used to send a first RRC message.

[0477] As an embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 is used to send first UE capability information.

[0478] As an embodiment, at least one of the antenna 420, the receiver 418, the reception processor 470, and the controller / processor 475 is used to receive first UE capability information.

[0479] As an embodiment, at least one of the antenna 452 , the transmitter 454 , the transmit processor 468 , and the controller / processor 459 is used to transmit the first auxiliary information.

[0480] As an embodiment, at least one of the antenna 420 , the receiver 418 , the reception processor 470 , and the controller / processor 475 is configured to receive first auxiliary information.

[0481] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0482] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0483] As an embodiment, the first communication device 450 is a user equipment.

[0484] As an embodiment, the first communication device 450 is a base station device.

[0485] As an embodiment, the first communication device 450 is a relay device.

[0486] As an embodiment, the second communication device 410 is a user equipment.

[0487] As an embodiment, the second communication device 410 is a base station device.

[0488] As an embodiment, the second communication device 410 is a relay device.

[0489] Example 5

[0490] Example 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG5. It should be noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

[0491] For the first node U01, in step S5101, first UE capability information is sent, and the first UE capability information indicates a third distance; wherein the first parameter set depends on the third distance; in step S5102, a first RRC message is received; wherein the first RRC message configures at least part of the first parameter set; in step S5103, a first reference signal is received; wherein the first parameter set depends on the first reference signal; in step S5104, before the first signal is sent, first auxiliary information is sent; wherein the first auxiliary information indicates the first time interval; in step S5105, a first signal is sent; in step S5106, accompanying the sending of the first signal, the echo of the first signal is monitored in the first time interval.

[0492] For the second node N02, in step S5201, the first RRC message is sent; in step S5202, the first reference signal is sent; in step S5203, the first signal is received.

[0493] For the third node N03, in step S5301, the first UE capability information is received; in step S5302, the first auxiliary information is received.

[0494] For the reflector N04, the first signal forms an echo of the first signal through the reflector N04 in the wireless channel.

[0495] In embodiment 5, the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; at least part of the first parameter set is configurable or at least part of the first parameter set is determined by the first node U01.

[0496] As an embodiment, the first node U01 is a target device.

[0497] As an embodiment, the target device is a UE.

[0498] As an embodiment, the target device is a SET.

[0499] As an embodiment, the first node U01 is a UE.

[0500] As an embodiment, the first node U01 is a RAN (Radio Access Network) node.

[0501] As an embodiment, the first node U01 is a target device.

[0502] As an embodiment, the second node N02 is a UE.

[0503] As an embodiment, the second node N02 is a RAN node.

[0504] As an embodiment, the RAN node includes a reception point (RP), and the definition of the RP refers to 3GPP TS 38.305.

[0505] As an embodiment, the RAN node includes a Transmission-Reception Point (TRP), and the definition of the TRP refers to 3GPP TS 38.305.

[0506] As an embodiment, the RAN node includes a DU.

[0507] As an embodiment, the RAN node includes a CU.

[0508] As an embodiment, the third node N03 is the second node N02.

[0509] As an embodiment, the third node N03 is not the second node N02.

[0510] As an embodiment, the third node N03 is a RAN node.

[0511] As an embodiment, the third node N03 is a perception server.

[0512] As an embodiment, the third node N03 is a location server.

[0513] As an embodiment, the location server includes SMF (Sensing Management Function).

[0514] As an embodiment, the location server includes LMF.

[0515] As an embodiment, the location server includes an SLP.

[0516] As an embodiment, the location server is at least one of E-SMLC, LMF or SLP.

[0517] As an embodiment, the first node U01 is a target device; the second node N02 is a RAN node; and the third node N03 is a location server.

[0518] As an embodiment, the first node U01 is a UE; the second node N02 is a RAN node, and the third node N03 is the second node N02.

[0519] As an embodiment, the first node U01 is a RAN node; the second node N02 is a UE.

[0520] As an embodiment, the first node U01 is a RAN node; the second node N02 is a RAN node.

[0521] As an embodiment, the first node U01 is a UE; the second node N02 is a UE.

[0522] As an embodiment, the first node U01 and the second node N02 are connected wirelessly.

[0523] As an embodiment, the first node U01 and the second node N02 are connected via a Uu port.

[0524] As an embodiment, the first node U01 and the second node N02 are connected via an IAB port.

[0525] As an embodiment, the first node U01 and the second node N02 are connected via a PC5 interface.

[0526] As an embodiment, the dotted box F5.1 is optional.

[0527] As an embodiment, the dotted box F5.1 does not exist.

[0528] As an embodiment, the dotted box F5.1 exists.

[0529] As an embodiment, the first UE capability information is an RRC message.

[0530] As an embodiment, the first UE capability information is a UEAssistanceInformation message.

[0531] As an embodiment, the first UE capability information is a UECapabilityInformation message.

[0532] As an embodiment, the first UE capability information is triggered by a UECapabilityEnquiry message.

[0533] As an embodiment, the first UE capability information is triggered by the first node itself.

[0534] As an embodiment, the first UE capability information is a UE capability IE (UE capability information element), and the UE capability IE includes perception capability; the UE capability IE belongs to a UECapabilityInformation message.

[0535] As an embodiment, the first UE capability information is a UE capability IE (UE capability information element), and the UE capability IE includes perception capability; the UE capability IE belongs to a UEAssistanceInformation message.

[0536] As an embodiment, the sensing capability is an ISAC capability.

[0537] As an embodiment, the perception capability is communication and perception capability.

[0538] As an embodiment, the name of the UE capability IE includes at least one of UE or Capability or sensing or ISAC.

[0539] As an embodiment, the UE capability IE is a UE-NR-Capability IE.

[0540] As an embodiment, a UECapabilityInformation message includes a field, and the field is set to supported.

[0541] As a sub-embodiment of the above embodiment, the name of the domain includes sensing.

[0542] As a sub-embodiment of the above embodiment, the name of the domain includes ISAC.

[0543] As an embodiment, the first UE capability information includes perception capability, and the perception capability does not include the third distance.

[0544] As an embodiment, the first UE capability information indicating the third distance means that: the first UE capability information includes perception capability, and the perception capability includes the third distance.

[0545] As an embodiment, the third distance is related to the UE implementation of the first node U01.

[0546] As an embodiment, the third distance is related to an algorithm supported by the first node U01.

[0547] As an embodiment, the third distance is related to the UE capability of the first node U01.

[0548] As an embodiment, the third distance is related to the configuration of the first node U01.

[0549] As an embodiment, the third distance is the minimum distance that the first node U01 can distinguish.

[0550] As an embodiment, the third distance is a distance resolution that can be supported by the first node U01.

[0551] As an embodiment, the third distance is a resolution.

[0552] As an embodiment, the third distance is a distance resolution.

[0553] As an embodiment, the unit of the third distance is 10 meters.

[0554] As an embodiment, the unit of the third distance is meter.

[0555] As an embodiment, the unit of the third distance is centimeter.

[0556] As an embodiment, the unit of the third distance is decimeter.

[0557] As an embodiment, the dotted box F5.2 is optional.

[0558] As an embodiment, the dotted box F5.2 does not exist.

[0559] As an embodiment, the dotted box F5.2 exists.

[0560] As an embodiment, the first RRC message is an RRCReconfiguration message.

[0561] As an embodiment, the name of the first RRC message includes RRC and Reconfiguration.

[0562] As an embodiment, at least part of the first parameter set configured by the first RRC message is dedicated to the first node.

[0563] As an embodiment, at least part of the first parameter set configured by the first RRC message is cell common.

[0564] As an embodiment, the first RRC message configuration of the first parameter set at least partially depends on the first UE capability information; the first UE capability information is an RRC message.

[0565] As an embodiment, at least part of the first parameter set configured by the first RRC message does not exceed the first UE capability information.

[0566] As an embodiment, the first RRC message is transmitted via a DCCH (Dedicated Control Channel).

[0567] As an embodiment, the first RRC message is transmitted via CCCH (Control Channel CCCH, common control channel).

[0568] As an embodiment, the first RRC message is transmitted via SCCH (Sidelink Control Channel).

[0569] As an embodiment, the first RRC message includes at least part of the first parameter set.

[0570] As an embodiment, the first RRC message indicates at least part of the first parameter set.

[0571] As an embodiment, the first RRC message explicitly indicates at least part of the first parameter set.

[0572] As an embodiment, the first RRC message implicitly indicates at least part of the first parameter set.

[0573] As an embodiment, the third node configures at least part of the first parameter set.

[0574] As an embodiment, the configuration of the first parameter set by the third node at least partially depends on the first UE capability information; the first UE capability information is an LPP message.

[0575] As an embodiment, the dotted box F5.3 is optional.

[0576] As an embodiment, the dotted box F5.3 does not exist.

[0577] As an embodiment, the dotted box F5.3 exists.

[0578] As an embodiment, the first parameter set depends on the first reference signal.

[0579] As an embodiment, the first reference signal is a path loss reference.

[0580] As an embodiment, the first reference signal is an SSB.

[0581] As an embodiment, the first reference signal is a CSI-RS.

[0582] As an embodiment, the first reference signal is a PRS.

[0583] As an embodiment, the first reference signal and one SSB are QCL (quasi-colocation).

[0584] As an embodiment, the first reference signal and one CSI-RS are QCL.

[0585] As an embodiment, the length of the first time interval depends on the first parameter set.

[0586] As an embodiment, the length of the first time interval does not exceed the air interface delay of the first reference signal; and the first parameter set includes the air interface delay of the first reference signal.

[0587] As an embodiment, the length of the first time interval is equal to the length of the air interface delay of the first reference signal; and the first parameter set includes the air interface delay of the first reference signal.

[0588] As an embodiment, the air interface delay of the first reference signal is the delay of the first path of the first reference signal.

[0589] As an embodiment, the air interface delay of the first reference signal is the delay of the last path of the first reference signal.

[0590] As an embodiment, the air interface delay of the first reference signal is the delay of at least one path of the first reference signal.

[0591] As an embodiment, the air interface delay of the first reference signal is measured by the first node U01.

[0592] As an embodiment, the air interface delay of the first reference signal is obtained according to the path loss of the first reference signal.

[0593] As an embodiment, the air interface delay of the first reference signal is obtained according to the received power of the first reference signal.

[0594] As an embodiment, the dotted box F5.4 is optional.

[0595] As an embodiment, the dotted box F5.4 does not exist.

[0596] As an embodiment, the dotted box F5.4 exists.

[0597] As an embodiment, the first auxiliary information is a Preamble.

[0598] As an embodiment, the first auxiliary information is UCI (Uplink Control Information, uplink control information).

[0599] As an embodiment, the first auxiliary information is a MAC CE (Control Element).

[0600] As an embodiment, the first auxiliary information is an RRC message.

[0601] As an embodiment, the first assistance information is a UEAssistanceInformation message.

[0602] As an embodiment, the first assistance information is at least one field in a UEAssistanceInformation message.

[0603] As an embodiment, the first assistance information is a field in a UEAssistanceInformation message.

[0604] As an embodiment, the first assistance information is a bit in a UEAssistanceInformation message.

[0605] As an embodiment, the first auxiliary information depends on the first RRC message.

[0606] As an embodiment, the triggering of the first auxiliary information depends on the configuration of at least part of the first parameter set by the first RRC message.

[0607] As an embodiment, the first RRC message configures the time-frequency resources occupied by the first auxiliary information.

[0608] As an embodiment, the first RRC message configures the PRACH resource of the Preamble to be associated with the first time interval.

[0609] As an embodiment, the first RRC message depends on the first auxiliary information.

[0610] As an embodiment, after the first auxiliary information is sent, the first RRC message is received; the first RRC message configures at least part of the first parameter set.

[0611] As an embodiment, the first auxiliary information request configures the first time interval.

[0612] As an embodiment, the first auxiliary information explicitly indicates the first time interval.

[0613] As an embodiment, the first auxiliary information implicitly indicates the first time interval.

[0614] As an embodiment, the first auxiliary information requests sending and receiving the first signal in the first time interval.

[0615] As an embodiment, the first auxiliary information requests sending the first signal at the first time interval.

[0616] As an embodiment, the first auxiliary information requests receiving the first signal in the first time interval.

[0617] As an embodiment, the first auxiliary information indicates a start time of the first time interval and a length of the first time interval.

[0618] As an embodiment, the reflector N04 is optional.

[0619] As an embodiment, the reflector N04 exists.

[0620] As a sub-embodiment of the above embodiment, within the first time interval, an echo of the first signal is monitored.

[0621] As a sub-embodiment of the above embodiment, the first signal passes through at least one reflector.

[0622] As a sub-embodiment of the above embodiment, the first signal passes through multiple reflectors.

[0623] As a sub-embodiment of the above embodiment, the reflector N04 is any reflector through which the echo of the first signal passes.

[0624] As a sub-embodiment of the above embodiment, the reflector N04 is a reflector through which any echo of the first signal passes.

[0625] As an embodiment, the reflector N04 does not exist.

[0626] As a sub-embodiment of the above embodiment, within the first time interval, the echo of the first signal is not monitored.

[0627] As an embodiment, step S5203 is optional.

[0628] As an embodiment, step S5203 does not exist.

[0629] As a sub-embodiment of the above embodiment, the above method is simple to implement.

[0630] As a sub-embodiment of the above embodiment, the above method reduces signaling interaction.

[0631] As a sub-embodiment of the above embodiment, the second node N02 does not receive the first signal.

[0632] As a sub-embodiment of the above embodiment, the second node N02 is not required to receive the first signal.

[0633] As an embodiment, step S5203 exists.

[0634] As a sub-embodiment of the above embodiment, the above method is beneficial to improving perception performance.

[0635] As a sub-embodiment of the above embodiment, the above method assists the first node U01 in perception through the second node N02.

[0636] As a sub-embodiment of the above embodiment, the second node N02 receives the first signal.

[0637] As a sub-embodiment of the above embodiment, after receiving the first signal, the second node N02 sends relevant measurement information of the first signal to the third node N03.

[0638] As a sub-embodiment of the above embodiment, after monitoring the first signal, the first node U01 sends relevant monitoring information of the first signal to the third node N03.

[0639] Example 6

[0640] Example 6 illustrates a schematic diagram of how the length of the first time interval depends on the first distance according to an embodiment of the present application, as shown in FIG6 .

[0641] In embodiment 6, the first parameter set includes a first distance; and the length of the first time interval depends on the first distance.

[0642] As an embodiment, the first parameter set indicates the first distance.

[0643] As an embodiment, the first parameter set is the first distance.

[0644] As an embodiment, the first parameter set includes an index of the first distance.

[0645] As an embodiment, the first parameter set indicates an index of the first distance.

[0646] As an embodiment, the first parameter set is an index of the first distance.

[0647] As an embodiment, the index of the first distance is L1, and L1 indicates that the first distance is not less than L1 and not greater than (L1+L0); L1 is a distance; and the units of L0 and L1 are the same.

[0648] As an embodiment, the L0 is fixed.

[0649] As an embodiment, the L0 is configurable.

[0650] As an embodiment, the index of the first distance is Q1, the first distance is equal to Q1 distance units; and Q1 is a positive integer.

[0651] As an embodiment, the distance unit is configurable.

[0652] As an embodiment, the distance unit is preconfigured.

[0653] As an embodiment, the distance unit is predefined.

[0654] As an embodiment, the distance unit is a distance length.

[0655] As an embodiment, the distance unit is at least 1 meter.

[0656] As an embodiment, the distance unit is at least 1 centimeter.

[0657] As an embodiment, the distance unit is at least 1 mm.

[0658] As an embodiment, the distance unit is the third distance.

[0659] As an embodiment, the first distance is a maximum detection distance.

[0660] As an embodiment, the first distance indicates a maximum distance of the target.

[0661] As an embodiment, the first distance is the maximum distance between the target and the first node.

[0662] As an embodiment, the distance between the target and the first node does not exceed the first distance.

[0663] As an embodiment, the first distance is configurable.

[0664] As an embodiment, the first distance is determined by the first node.

[0665] As an embodiment, the length of the first time interval is related to the first distance.

[0666] As an embodiment, the length of the first time interval is linearly related to the first distance.

[0667] As an embodiment, the length of the first time interval is a function of the first distance.

[0668] As an embodiment, the length of the first time interval is equal to (the first distance / the first variable).

[0669] As an embodiment, the length of the first time interval is related to the first distance and frequency.

[0670] As an embodiment, the larger the first distance is, the longer the first time interval is.

[0671] As an embodiment, the first variable is the speed of light.

[0672] As an embodiment, the first variable is the product of the speed of light and a coefficient.

[0673] As an embodiment, the first variable is frequency dependent.

[0674] As an embodiment, the first variable depends on bandwidth.

[0675] Example 7

[0676] Example 7 illustrates a schematic diagram of how the start time of the first time interval depends on the second distance according to an embodiment of the present application, as shown in FIG7 .

[0677] In embodiment 7, the first parameter set includes a second distance; the start time of the first time interval depends on the second distance; and the second distance is not greater than the first distance.

[0678] As an embodiment, the first parameter set indicates the second distance.

[0679] As an embodiment, the first parameter set is the second distance.

[0680] As an embodiment, the first parameter set includes an index of the second distance.

[0681] As an embodiment, the first parameter set indicates an index of the second distance.

[0682] As an embodiment, the first parameter set is an index of the second distance.

[0683] As an embodiment, the index of the second distance is L2, and L2 indicates that the second distance is not less than L2 and not greater than (L2+L0); L2 is a distance.

[0684] As an embodiment, the index of the second distance is Q2, the second distance is equal to Q2 distance units; and Q2 is a positive integer.

[0685] As an embodiment, the second distance is not greater than the first distance means that the second distance is smaller than the first distance.

[0686] As an embodiment, the second distance is not greater than the first distance means that the second distance is equal to or less than the first distance.

[0687] As an embodiment, the second distance is a minimum detection distance.

[0688] As an embodiment, the second distance indicates a minimum distance to the target.

[0689] As an embodiment, the second distance is the minimum distance between the target and the first node.

[0690] As an embodiment, the distance between the target and the first node is not less than the first distance.

[0691] As an embodiment, the second distance is not greater than the first distance means that the second distance is smaller than the first distance.

[0692] As an embodiment, the second distance is not greater than the first distance means that the second distance is less than or equal to the first distance.

[0693] As an embodiment, the first distance is configurable.

[0694] As an embodiment, the first distance is determined by the first node.

[0695] As an embodiment, the start time of the first time interval is the time between the start time of the first signal and the second time interval.

[0696] As an embodiment, the length of the second time interval is related to the second distance.

[0697] As an embodiment, the length of the second time interval is linearly related to the second distance.

[0698] As an embodiment, the length of the second time interval is a function of the second distance.

[0699] As an embodiment, the length of the second time interval is equal to (the second distance / the first variable).

[0700] As an embodiment, the length of the second time interval is related to the second distance and frequency.

[0701] As an embodiment, the larger the second distance is, the longer the second time interval is.

[0702] Example 8

[0703] Embodiment 8 illustrates a schematic diagram of a first time interval belonging to a period of a first candidate time interval according to an embodiment of the present application, as shown in FIG8 .

[0704] In embodiment 8, the first parameter set includes multiple candidate time intervals; the first time interval belongs to one of the multiple candidate time intervals; any two of the multiple candidate time intervals do not overlap, and the multiple candidate time intervals are configurable.

[0705] As an embodiment, the time domain position of each candidate time interval in the multiple candidate time intervals is configurable.

[0706] As an embodiment, the length of each candidate time interval in the multiple candidate time intervals is configurable.

[0707] As an embodiment, the multiple candidate time intervals appear periodically.

[0708] As an embodiment, each candidate time interval in the plurality of candidate time intervals is at least one symbol.

[0709] As a sub-embodiment of the above embodiment, each candidate time interval in the multiple candidate time intervals is at least one symbol; and the first time interval is a non-integer number of symbols.

[0710] As a sub-embodiment of the above embodiment, the above method is conducive to compatibility with existing protocols.

[0711] As a sub-embodiment of the above embodiment, the above method reduces the impact on existing protocols.

[0712] As a sub-embodiment of the above embodiment, each candidate time interval in the multiple candidate time intervals is a symbol; and the first time interval is (y / x) in the symbol to which the first time interval belongs.

[0713] As an embodiment, each candidate time interval in the plurality of candidate time intervals is a (y / x) symbol.

[0714] As a sub-embodiment of the above embodiment, each candidate time interval in the multiple candidate time intervals is a (y / x) symbol; and the first time interval is a candidate time interval in the multiple candidate time intervals.

[0715] As an embodiment, the first time interval is a candidate time interval among the multiple candidate time intervals.

[0716] As an embodiment, the position of the first time interval in the candidate time intervals to which the first time interval belongs is configurable.

[0717] As an embodiment, a signaling is received, wherein the signaling indicates a cycle length and a start offset value, and the multiple candidate time intervals depend on the cycle length and the start offset value.

[0718] As an embodiment, the plurality of candidate time intervals depend on the one cycle length, the one start offset value and the SFN.

[0719] As an embodiment, the plurality of candidate time intervals depend on the one cycle length, the one start offset value, the SFN, the subframe number and the time slot number.

[0720] As an embodiment, the plurality of candidate time intervals depend on the one cycle length, the one start offset value, the SFN, the subframe number, the time slot number and the symbol number.

[0721] As an embodiment, the signaling is an RRC message.

[0722] As an embodiment, the signaling is the first RRC message.

[0723] As an embodiment, the signaling is an LPP message.

[0724] Example 9

[0725] Embodiment 9 illustrates a schematic diagram of a first signal and a first time interval according to an embodiment of the present application, as shown in FIG9 .

[0726] In embodiment 9, the first parameter set includes a sending duration of the first signal; and the length of the first time interval depends on the sending duration of the first signal.

[0727] As an embodiment, the transmission duration of the first signal is the first time domain resource.

[0728] As an embodiment, the sending duration of the first signal is the time interval from the first time unit occupied by the first signal to the last time unit occupied by the first signal.

[0729] As an embodiment, the sending duration of the first signal is a time interval from a first time unit configured for the first signal to a last time unit configured for the first signal.

[0730] As an embodiment, the sending duration of the first signal is configurable.

[0731] As a sub-embodiment of the above embodiment, the sending duration of the first signal is configured in the RRC sublayer.

[0732] As a sub-embodiment of the above embodiment, the sending duration of the first signal is configured at the LPP layer.

[0733] As an embodiment, the sending duration of the first signal depends on the first distance.

[0734] As a sub-embodiment of the above embodiment, the sending duration of the first signal is proportional to the first distance.

[0735] As a sub-embodiment of the above embodiment, the greater the first distance is, the longer the duration of sending the first signal is.

[0736] As a sub-embodiment of the above embodiment, the first distance is configured at the RRC sublayer.

[0737] As a sub-embodiment of the above embodiment, the first distance is configured at the LPP layer.

[0738] As a sub-embodiment of the above embodiment, the first node determines a sending duration of the first signal according to the first distance.

[0739] As an embodiment, the transmission duration of the first signal depends on the frequency of the first signal.

[0740] As an embodiment, the transmission duration of the first signal depends on the bandwidth occupied by the first signal.

[0741] As an embodiment, the transmission duration of the first signal depends on the bandwidth occupied by the first signal.

[0742] As an embodiment, the length of the first time interval is equal to the length of the sending duration of the first signal.

[0743] As an embodiment, the first time interval is the sending duration of the first signal.

[0744] As an embodiment, the above embodiment is conducive to performing detection by mixing the first signal and the echo of the first signal.

[0745] As an embodiment, the above embodiment has low implementation complexity.

[0746] As an embodiment, the length of the first time interval is not less than the sending duration of the first signal.

[0747] As an embodiment, the sending duration of the first signal belongs to the first time interval.

[0748] Example 10

[0749] Example 10 illustrates a schematic diagram of a first signal using a linear frequency modulation wave according to an embodiment of the present application, as shown in Figure 10. In Figure 10, the horizontal axis represents time, and the vertical axis represents frequency; the thick solid lines 1, 2, ..., N1 represent N1 chirps, respectively; N1 is an integer not less than 1.

[0750] In embodiment 10, the first signal adopts a linear frequency modulation wave, and the first signal includes the N1 chirps.

[0751] As an embodiment, the first signal is composed of the N1 Chirps.

[0752] As an embodiment, N1 is 1.

[0753] As an embodiment, N1 is greater than 1.

[0754] As an embodiment, N1 is configurable.

[0755] As an embodiment, the N1 Chirps are continuous in time.

[0756] As an embodiment, the N1 Chirps are non-continuous in time.

[0757] As an embodiment, the N1 Chirps are equally spaced in time.

[0758] As an embodiment, the frequency of each Chirp in the N1 Chirps increases linearly with time.

[0759] As an embodiment, the N1 Chirps are N1 repetitions of the same Chirp.

[0760] As an embodiment, the duration of each Chirp in the N1 Chirps is T_c.

[0761] As an embodiment, the sending duration of the first signal depends on T_c.

[0762] As an embodiment, the sending duration of the first signal is equal to the T_c.

[0763] As an embodiment, the sending duration of the first signal is equal to T_c×N1.

[0764] As an embodiment, the sending duration of the first signal is equal to T_c×N1+T_1×(N1-1); wherein T_1 is an offset.

[0765] As an embodiment, the sending duration of the first signal is equal to (T_c+T_1)×N1; wherein T_1 is an offset.

[0766] As an embodiment, the sending duration of the first signal is equal to T_c×N1+T_1; wherein T_1 is an offset.

[0767] As an embodiment, T_1 is the time interval between two adjacent Chirps.

[0768] As an embodiment, T_1 is configurable.

[0769] As an embodiment, the T_1 is determined by the first node.

[0770] As an embodiment, the T_1 is related to the first node.

[0771] As an embodiment, the T_1 is related to the parameters of the first node.

[0772] As an embodiment, the T_1 is related to the hardware of the first node.

[0773] As an embodiment, this embodiment does not limit other implementation forms of the first signal. The first signal may also adopt other forms of frequency-modulated waves, or may also adopt a single-frequency wave.

[0774] Example 11

[0775] Example 11 illustrates a schematic diagram of a first signal and an echo of the first signal according to an embodiment of the present application, as shown in FIG11 .

[0776] In embodiment 11, the first signal is sent by the first node; the first signal forms an echo of the first signal through a reflector in a wireless channel; and the echo of the first signal is monitored by the first node.

[0777] As an embodiment, the first signal forming an echo of the first signal through a reflector in the wireless channel means that the first signal is reflected, diffracted, or refracted by the reflector in the wireless channel to form the echo of the first signal.

[0778] As an embodiment, the first signal forming an echo of the first signal through a reflector in the wireless channel means that the first signal is affected by the reflector in the wireless channel to form an echo of the first signal.

[0779] As an embodiment, the echo of the first signal is not modulated by the reflector.

[0780] As an embodiment, the reflector is a target to be detected and / or tracked.

[0781] As an embodiment, the reflector is not a target for detection and / or tracking.

[0782] As an embodiment, the reflector is passive.

[0783] As an embodiment, the reflector is active.

[0784] As an embodiment, the reflector monitors the first signal.

[0785] As an embodiment, the second node monitors the first signal.

[0786] As an embodiment, the reflector does not monitor the first signal.

[0787] As an embodiment, this embodiment does not limit the number of the reflectors.

[0788] As an embodiment, this embodiment does not limit the position of the reflector.

[0789] As an embodiment, this embodiment does not limit the size of the reflector.

[0790] Example 12

[0791] Embodiment 12 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG12. In FIG12, the processing device 1200 in the first node includes a first receiver 1201 and a first transmitter 1202.

[0792] A first transmitter 1202 sends a first signal;

[0793] The first receiver 12 monitors the echo of the first signal in a first time interval accompanying the transmission of the first signal.

[0794] In embodiment 12, the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; at least part of the first parameter set is configurable or at least part of the first parameter set is determined by the first node.

[0795] As an embodiment, the first parameter set includes a first distance; and the length of the first time interval depends on the first distance.

[0796] As an embodiment, the first parameter set includes a second distance; the start time of the first time interval depends on the second distance; and the second distance is not greater than the first distance.

[0797] As an embodiment, the first parameter set includes multiple candidate time intervals; the first time interval belongs to one of the multiple candidate time intervals; any two of the multiple candidate time intervals do not overlap, and the multiple candidate time intervals are configurable.

[0798] As an embodiment, the first parameter set includes a sending duration of the first signal; and the length of the first time interval depends on the sending duration of the first signal.

[0799] As an embodiment, the first receiver 1201 receives a first reference signal; wherein the first parameter set depends on the first reference signal.

[0800] As an embodiment, the first transmitter 1202 sends first UE capability information, and the first UE capability information indicates a third distance; wherein the first parameter set depends on the third distance.

[0801] As an embodiment, the first transmitter 1202 sends first auxiliary information before the first signal is sent; wherein the first auxiliary information indicates the first time interval.

[0802] As an embodiment, the first receiver 1201 receives a first RRC message; wherein, the first RRC message configures at least part of the first parameter set.

[0803] As an embodiment, the waveform adopted by the first signal is a frequency modulated wave.

[0804] As an embodiment, the first receiver 1201 includes at least one of the antenna 452 or the receiver 454 or the multi-antenna receiving processor 458 or the receiving processor 456 or the controller / processor 459 or the memory 460 or the data source 467 in FIG. 4 of the present application.

[0805] As an embodiment, the first receiver 1201 includes at least the antenna 452 and the receiver 454 in FIG. 4 of the present application.

[0806] As an embodiment, the first transmitter 1202 includes at least one of the antenna 452 or transmitter 454 or multi-antenna transmission processor 457 or transmission processor 468 or controller / processor 459 or memory 460 or data source 467 in FIG. 4 of the present application.

[0807] As an embodiment, the first transmitter 1202 includes at least the antenna 452 and the transmitter 454 in FIG. 4 of the present application.

[0808] Example 13

[0809] Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG13. In FIG13, the processing device 1300 in the second node includes a second transmitter 1301 and a second receiver 1302.

[0810] The second transmitter 1301 sends a first RRC message;

[0811] In embodiment 13, the recipient of the first RRC message sends a first signal; accompanying the sending of the first signal, the recipient of the first RRC message monitors the echo of the first signal in a first time interval; the first time interval depends on the sending of the first signal and the first time interval depends on a first parameter set; the first RRC message configures at least part of the first parameter set.

[0812] As an embodiment, the first parameter set includes a first distance; and the length of the first time interval depends on the first distance.

[0813] As an embodiment, the first parameter set includes a second distance; the start time of the first time interval depends on the second distance; and the second distance is not greater than the first distance.

[0814] As an embodiment, the first parameter set includes multiple candidate time intervals; the first time interval belongs to one of the multiple candidate time intervals; any two of the multiple candidate time intervals do not overlap, and the multiple candidate time intervals are configurable.

[0815] As an embodiment, the first parameter set includes a sending duration of the first signal; and the length of the first time interval depends on the sending duration of the first signal.

[0816] As an embodiment, the second transmitter 1301 sends a first reference signal; wherein the first parameter set depends on the first reference signal.

[0817] As an embodiment, the second receiver 1302 receives first UE capability information, where the first UE capability information indicates a third distance; wherein the first parameter set depends on the third distance.

[0818] As an embodiment, the second receiver 1302 receives first auxiliary information; wherein, before the first signal is sent, the recipient of the first RRC message sends the first auxiliary information; the first auxiliary information indicates the first time interval.

[0819] As an embodiment, the second receiver 1302 receives first auxiliary information; wherein, before the first signal is sent, the recipient of the first RRC message sends the first auxiliary information; the first auxiliary information indicates the first time interval.

[0820] As an embodiment, the waveform adopted by the first signal is a frequency modulated wave.

[0821] As an embodiment, the second transmitter 1301 includes at least one of the antenna 420 or the transmitter 418 or the multi-antenna transmission processor 471 or the transmission processor 416 or the controller / processor 475 or the memory 476 in FIG. 4 of the present application.

[0822] As an embodiment, the second transmitter 1301 includes at least the antenna 420 and the transmitter 418 in FIG. 4 of the present application.

[0823] As an embodiment, the second receiver 1302 includes at least one of the antenna 420 or the receiver 418 or the multi-antenna receiving processor 472 or the receiving processor 470 or the controller / processor 475 or the memory 476 in FIG. 4 of the present application.

[0824] As an embodiment, the second receiver 1302 includes at least the antenna 420 and the receiver 418 in FIG. 4 of the present application.

[0825] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR node B) NR node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0826] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A first node used for wireless communication, characterized in that, Comprising: A first transmitter that sends a first signal; A first receiver that, accompanying the sending of the first signal, monitors the echo of the first signal in a first time interval; Wherein, the first time interval depends on the sending of the first signal and the first time interval depends on a first set of parameters; at least part of the first set of parameters is configurable or at least part of the first set of parameters is determined by the first node.

2. The first node according to claim 1, wherein The first set of parameters includes a first distance; the length of the first time interval depends on the first distance.

3. The first node according to claim 2, wherein The first set of parameters includes a second distance; the start time of the first time interval depends on the second distance; the second distance is not greater than the first distance.

4. The first node according to any one of claims 1 to 3, characterized in that, The first set of parameters includes a plurality of candidate time intervals; the first time interval belongs to one of the plurality of candidate time intervals; any two of the plurality of candidate time intervals do not overlap, and the plurality of candidate time intervals are configurable.

5. The first node according to any one of claims 1 to 4, characterized in that, The first set of parameters includes the sending duration of the first signal; the length of the first time interval depends on the sending duration of the first signal.

6. The first node according to any one of claims 1 to 5, characterized in that, Comprising: The first receiver that receives a first reference signal; Wherein, the first set of parameters depends on the first reference signal.

7. The first node according to any one of claims 1 to 6, characterized in that Comprising: The first transmitter that sends first UE capability information, and the first UE capability information indicates a third distance; Wherein, the first set of parameters depends on the third distance.

8. The first node according to any one of claims 1 to 7, characterized in that, Comprising: The first transmitter that, before the first signal is sent, sends first auxiliary information; 9. The first node according to any one of claims 1 to 8, characterized in that, Wherein, the first auxiliary information indicates the first time interval. Comprising: The first receiver that receives a first RRC message; 10. A method in a first node used for wireless communication, characterized in that, Wherein, the first RRC message configures at least part of the first set of parameters. Comprising: Sending a first signal; A first receiver that, accompanying the sending of the first signal, monitors the echo of the first signal in a first time interval; 11. A second node used for wireless communication, characterized in that, Wherein, the first time interval depends on the sending of the first signal and the first time interval depends on a first set of parameters; at least part of the first set of parameters is configurable or at least part of the first set of parameters is determined by the first node. Comprising: A second transmitter that sends a first RRC message; [[ID=2,6]]Wherein, the receiver of the first RRC message sends a first signal; 12. A method in a second node for use in wireless communication, characterized in that, Accompanying the sending of the first signal, the receiver of the first RRC message monitors the echo of the first signal in a first time interval; the first time interval depends on the sending of the first signal and the first time interval depends on a first set of parameters; the first RRC message configures at least part of the first set of parameters. Comprising: Sending a first RRC message; Wherein, the receiver of the first RRC message sends a first signal; accompanying the sending of the first signal, the receiver of the first RRC message monitors the echo of the first signal in a first time interval; the first time interval depends on the sending of the first signal and the first time interval depends on a first set of parameters; the first RRC message configures at least part of the first set of parameters.

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