Method and apparatus in communication node used for wireless communication

Abstract

The invention discloses a method and an apparatus in a communication node used for wireless communication. The communication node sends a first signal; monitoring an echo of the first signal in a first time interval along with the transmission of the first signal; the first time interval depends on the transmission of the first signal and the first time interval depends on a first parameter set; at least a portion of the first set of parameters is configurable or at least a portion of the first set of parameters is determined by the first node. According to the scheme provided by the invention, the characteristics of the echo of the first signal are considered, and the time for monitoring the echo of the first signal is optimized.

Description

Technical Field

[0001] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular, to a method and apparatus for monitoring echo. Background Art

[0002] With the continuous growth of sensing requirements, the trend of the integration of sensing and communication capabilities in the network has become increasingly obvious. The ITU-R WP 5D working group has studied the application scenarios of integrated sensing and communication (ISAC) technology for 6G. The technical report 22.837 (Rel-19) of "Feasibility Study on Integrated Sensing and Communication" released by 3GPP (the 3rd Generation Partnership Project) elaborates 26 different use cases and integrates the potential requirements and key performance indicators (KPIs) of ISAC. The 102nd meeting of 3GPP RAN passed the study item (SI) of "Study on channel modelling for Integrated Sensing And Communication (ISAC) for NR", in which the focus of the study is to define channel modelling to support the detection and / or tracking of targets, and the targets for detection and / or tracking include drones, indoor and outdoor people, cars (at least outdoors), automated guided vehicles (such as in indoor factories), objects causing hazards on roads / railways, etc. Summary of the Invention

[0003] For monostatic sensing, after the UE sends a signal, it needs to receive the echo of this signal. The inventors have found through research that the time interval for the UE to monitor the echo of this signal may affect the transmission of other communication signals / channels of the UE. Therefore, how to determine this time interval needs to be studied.

[0004] In view of the above problems, the present application provides a solution for monitoring echoes. In the above problem description, the NR system is taken as an example. The present application is also applicable to scenarios such as 5.5G systems or 6G systems and achieves similar technical effects as the NR system; further, although the present application gives specific implementation manners for single-site sensing, the present application can also be used in scenarios such as dual-site sensing and achieves similar technical effects as single-site sensing. Further, adopting a unified design solution for different scenarios also helps to reduce hardware complexity and cost. Further, although the original intention of the present application is for the Uu air interface, the present application can also be used for the PC5 interface and achieves similar technical effects as the Uu air interface. Further, although the original intention of the present application is for the terminal-base station scenario, the present application is also equally applicable to the V2X (Vehicle-to-Everything) scenario, the communication scenarios between the terminal and the relay, and between the relay and the base station, and achieves similar technical effects as in the terminal-base station scenario. Further, although the original intention of the present application is for the terminal-base station scenario, the present application is also equally applicable to the IAB (Integrated Access and Backhaul) communication scenario and achieves similar technical effects as in the terminal-base station scenario. Further, although the original intention of the present application is for the licensed band, the present application is also equally applicable to the unlicensed band communication scenario and achieves similar technical effects as in the licensed band scenario. Further, although the original intention of the present application is for the terrestrial network (TN) scenario, the present application is also equally applicable to the non-terrestrial network (NTN) communication scenario and achieves similar technical effects as in the TN scenario. In addition, adopting a unified solution for different scenarios also helps to reduce hardware complexity and cost.

[0005] As an example, the interpretation of the terms in the present application refers to the definitions in the 3GPP specification protocol series TS38.

[0006] As an example, the interpretation of the terms in the present application refers to the definitions in the 3GPP specification protocol series TS37.

[0007] It should be noted that, without conflict, the embodiments and the features in the embodiments in any node of the present application can be applied to any other node. Without conflict, the embodiments and the features in the embodiments of the present application can be combined with each other arbitrarily.

[0008] The present application discloses a method in a first node for use in wireless communication, characterized by including:

[0009] Sending a first signal;

[0010] A first receiver, along with the transmission of the first signal, monitors the echo of the first signal in a first time interval;

[0011] Wherein, the first time interval depends on the transmission of the first signal and the first time interval depends on a first set of parameters.

[0012] As an embodiment, at least part of the first set of parameters is configurable.

[0013] As an embodiment, at least part of the first set of parameters is determined by the first node.

[0014] As an embodiment, the problems to be solved by this application include: how to monitor the echo of the first signal.

[0015] As an embodiment, monitoring the echo of the first signal in the first time interval solves the above problems.

[0016] As an embodiment, the above method reduces the monitoring time through the first time interval, thereby reducing the UE power consumption.

[0017] As an embodiment, the above method improves the correct detection probability through the first time interval.

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

[0019] As an embodiment, the above method reduces the impact on the transmission of other communication signals / channels through the first time interval.

[0020] As an embodiment, the problems to be solved by this application include: how to determine the first time interval.

[0021] As an embodiment, the first time interval depends on the transmission of the first signal and the first time interval depends on a first set of parameters, thereby solving the above problems.

[0022] As an embodiment, the first time interval is jointly determined by the transmission of the first signal and the first set of parameters, thereby solving the above problems.

[0023] As an embodiment, in the above method, the first time interval takes into account the influence of the transmission of the first signal and the first set of parameters.

[0024] As an embodiment, the characteristics of the echo of the first signal are taken into account in the above method.

[0025] As an embodiment, the first time interval is optimized in the above method.

[0026] As an embodiment, the above method avoids too long or too short first time intervals.

[0027] As an embodiment, the problems to be solved by the present application include: how to determine the first parameter set.

[0028] As an embodiment, at least part of the first parameter set is configurable, thus solving the above problems.

[0029] As an embodiment, the above method is beneficial to network control.

[0030] As an embodiment, the above method is beneficial to parameter adjustment.

[0031] As an embodiment, at least part of the first parameter set is determined by the first node, thus solving the above problems.

[0032] As an embodiment, the above method is beneficial to reducing signaling interaction.

[0033] As an embodiment, the above method is more flexible to implement.

[0034] As an embodiment, the characteristics of the above method include: monitoring the echo of the first signal in the first time interval.

[0035] According to one aspect of the present application, it is characterized in that the first parameter set includes a first distance; the length of the first time interval depends on the first distance.

[0036] As an embodiment, the above method optimizes the length of the first time interval.

[0037] As an embodiment, the above method is beneficial to improving the correct detection probability.

[0038] As an embodiment, the above method is beneficial to the detection and / or tracking of targets.

[0039] As an embodiment, the above method avoids detecting unnecessary or incorrect targets.

[0040] 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; the second distance is not greater than the first distance.

[0041] As an embodiment, the problems to be solved by the present application include: how to determine the start time of the first time interval.

[0042] As an embodiment, the start time of the first time interval depends on the second distance, thus solving the above problems.

[0043] As an embodiment, the above method avoids premature monitoring of the echo of the first signal.

[0044] As an embodiment, the above method is conducive to improving the correct detection probability.

[0045] As an embodiment, the above method is conducive to the detection and / or tracking of the target.

[0046] As an embodiment, the above method avoids the detection of unnecessary or incorrect targets.

[0047] According to one aspect of the present application, it is characterized in that the first parameter set includes a plurality of candidate time intervals; the first time interval belongs to one of the plurality of candidate time intervals; any two candidate time intervals in the plurality of candidate time intervals do not overlap, and the plurality of candidate time intervals are configurable.

[0048] As an embodiment, the problems to be solved by the present application include: how to determine the first time interval.

[0049] As an embodiment, the first time interval belongs to one period of the periodic interval indicated by the first parameter set, thus solving the above problems.

[0050] As an embodiment, the above method is conducive to reducing signaling interaction.

[0051] As an embodiment, the above method is conducive to avoiding the overlap of sensing time and communication time.

[0052] As an embodiment, the above method is conducive to the coordination of communication and sensing.

[0053] According to one aspect of the present application, it is characterized in that the first parameter set includes the transmission duration of the first signal; the length of the first time interval depends on the transmission duration of the first signal.

[0054] As an embodiment, the problems to be solved by the present application include: how to determine the first time interval.

[0055] As an embodiment, the length of the first time interval depends on the transmission duration of the first signal, thus solving the above problems.

[0056] As an embodiment, the above method is conducive to reducing signaling interaction.

[0057] As an embodiment, the above method is conducive to the monitoring of the echo of the first signal.

[0058] As an embodiment, the above method is conducive to the coordination of communication and sensing.

[0059] According to one aspect of the present application, it is characterized by including:

[0060] Receiving a first reference signal;

[0061] Wherein, the first parameter set depends on the first reference signal.

[0062] As an embodiment, the problems to be solved by the present application include: how to determine the first parameter set.

[0063] As an embodiment, the first parameter set depends on the received first reference signal, thus solving the above problems.

[0064] As an embodiment, the above method is beneficial to the cooperation between communication and sensing.

[0065] As an embodiment, the above method is beneficial to the dynamic adjustment of parameters.

[0066] As an embodiment, the above method optimizes the first parameter set.

[0067] According to one aspect of the present application, it is characterized by including:

[0068] Sending first UE capability information, where the first UE capability information indicates a third distance;

[0069] Wherein, the first parameter set depends on the third distance.

[0070] As an embodiment, the problems to be solved by the present application include: how to determine the first parameter set.

[0071] As an embodiment, the first parameter set depends on the third distance indicated by the first UE capability information, thus solving the above problems.

[0072] As an embodiment, the above method takes into account the UE capability of the first node.

[0073] As an embodiment, the above method is beneficial to the adjustment of parameters based on different UE capabilities.

[0074] According to one aspect of the present application, it is characterized by including:

[0075] Before the first signal is sent, sending first auxiliary information;

[0076] Wherein, the first auxiliary information indicates the first time interval.

[0077] As an embodiment, the problems to be solved by the present application include: how to avoid the influence of the transmission of other communication signals / channels within the first time interval.

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

[0079] As an embodiment, the above problems are solved by indicating the first time interval through the first auxiliary information.

[0080] According to an aspect of the present application, it is characterized in that it includes:

[0081] Receiving a first RRC (Radio Resource Control) message;

[0082] Wherein, the first RRC message configures at least part of the first parameter set.

[0083] As an embodiment, compared with the LPP message, the above method can shorten the delay.

[0084] According to an aspect of the present application, it is characterized in that the waveform adopted by the first signal is a frequency modulation wave.

[0085] The present application discloses a method in a second node used for wireless communication, which is characterized in that it includes:

[0086] Sending a first RRC message;

[0087] Wherein, the receiver of the first RRC message sends a first signal; along with the sending of the first signal, the receiver of the first RRC message monitors the echo of the first signal within 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.

[0088] According to an aspect of the present application, it is characterized in that the first parameter set includes a first distance; the length of the first time interval depends on the first distance.

[0089] According to an 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; the second distance is not greater than the first distance.

[0090] According to one aspect of the present application, it is characterized in that the first parameter set includes a plurality of candidate time intervals; the first time interval belongs to one of the plurality of candidate time intervals; any two candidate time intervals in the plurality of candidate time intervals do not overlap, and the plurality of candidate time intervals are configurable.

[0091] According to one aspect of the present application, it is characterized in that the first parameter set includes the transmission duration of the first signal; the length of the first time interval depends on the transmission duration of the first signal.

[0092] According to one aspect of the present application, it includes:

[0093] Transmit a first reference signal;

[0094] Wherein, the first parameter set depends on the first reference signal.

[0095] According to one aspect of the present application, it includes:

[0096] Receive first UE capability information, and the first UE capability information indicates a third distance;

[0097] Wherein, the first parameter set depends on the third distance.

[0098] According to one aspect of the present application, it includes:

[0099] Receive first auxiliary information;

[0100] Wherein, before the first signal is transmitted, the receiver of the first RRC message transmits the first auxiliary information; the first auxiliary information indicates the first time interval.

[0101] According to one aspect of the present application, it is characterized in that the waveform adopted by the first signal is a frequency modulation wave.

[0102] The present application discloses a first node used for wireless communication, which is characterized in that it includes:

[0103] A first transmitter for transmitting a first signal;

[0104] A first receiver, which monitors the echo of the first signal in a first time interval along with the transmission of the first signal;

[0105] Wherein, the first time interval depends on the transmission 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.

[0106] The present application discloses a second node for use in wireless communication, comprising:

[0107] A second transmitter for sending a first RRC message;

[0108] Wherein, a receiver of the first RRC message sends a first signal; along with the sending of the first signal, the receiver 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 set of parameters; the first RRC message configures at least part of the first set of parameters. BRIEF DESCRIPTION OF THE DRAWINGS

[0109] Other features, objects, and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0110] Figure 1 A flowchart showing the transmission of a first signal and an echo of the first signal according to an embodiment of the present application;

[0111] Figure 2 A schematic diagram showing a network architecture according to an embodiment of the present application;

[0112] Figure 3 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] Figure 4 A schematic diagram showing a first communication device and a second communication device according to an embodiment of the present application;

[0114] Figure 5 A flowchart showing a wireless signal transmission according to an embodiment of the present application;

[0115] Figure 6 A schematic diagram showing that the length of a first time interval depends on a first distance according to an embodiment of the present application;

[0116] Figure 7 A schematic diagram showing that the start time of a first time interval depends on a second distance according to an embodiment of the present application;

[0117] Figure 8 A schematic diagram showing that a first time interval belongs to a cycle of a first set of candidate time intervals according to an embodiment of the present application;

[0118] Figure 9 A schematic diagram showing a first signal and a first time interval according to an embodiment of the present application;

[0119] Figure 10 Schematic diagram showing that a first signal adopts a chirp signal according to an embodiment of the present application;

[0120] Figure 11 Schematic diagram showing a first signal and an echo of the first signal according to an embodiment of the present application;

[0121] Figure 12 Structural block diagram showing a processing device in a first node according to an embodiment of the present application;

[0122] Figure 13 Structural block diagram showing a processing device in a second node according to an embodiment of the present application. Detailed implementation manners

[0123] The technical solutions of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, without conflict, the embodiments and features in the embodiments of the present application can be combined with each other arbitrarily.

[0124] Example 1

[0125] Embodiment 1 exemplifies a flowchart 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 the accompanying Figure 1 drawing. In the accompanying Figure 1 drawing, each box represents a step. It should be emphasized in particular that the order of the boxes in the drawing does not represent the chronological order between the represented steps.

[0126] In Embodiment 1, in step 101, a first node in the present application sends a first signal; in step 102, accompanying the sending of the first signal, the echo of the first signal is monitored 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.

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

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

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

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

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

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

[0133] As an example, 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 example, 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), and (Channel State Information)-RS (Reference Signal).

[0135] As an example, 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 example, the first signal is periodic.

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

[0138] As an example, the first signal is semi-persistent.

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

[0140] As an example, the first signal is on demand.

[0141] As an example, the above method is beneficial for energy saving.

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

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

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

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

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

[0147] As an example, the above method multiplexes the PRS to reduce the standardization complexity.

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

[0149] As an example, the PRS is a sensed specific PRS.

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

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

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

[0153] As an example, the above method multiplexes the SRS to reduce the standardization complexity.

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

[0155] As an example, the SRS is a sensed specific SRS.

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

[0157] As an example, the first signal is a sensing signal.

[0158] As an example, the above method avoids sensing and communication conflicts.

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

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

[0161] As an example, the sensing signal is an ISAC sensing signal.

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

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

[0164] As an embodiment, the one sensing signal is a frequency-swept signal.

[0165] As an embodiment, the one sensing signal is a Chirp signal.

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

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

[0168] As an embodiment, the one sensing 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 cos(2πft), where f is the frequency of the single-frequency wave and t is time.

[0171] As an embodiment, the one sensing signal adopts a frequency modulation wave.

[0172] As an embodiment, the frequency of the frequency modulation wave changes with time.

[0173] As an embodiment, the frequency modulation wave is a Frequency Modulated Continuous Wave (FMCW).

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

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

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

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

[0178] As an embodiment, the frequency modulation wave is FMCW, and the Chirp of the FMCW is

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

[0180] As an example, the transmission accompanying the first signal means: in response to the transmission of the first signal.

[0181] As an example, the transmission accompanying the first signal means: in response to the triggering of the first signal.

[0182] As an example, the transmission accompanying the first signal means: when the first signal is transmitted.

[0183] As an example, the transmission accompanying the first signal means: when the first signal is triggered.

[0184] As an example, the transmission accompanying the first signal means: and the transmission of the first signal is atomic.

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

[0186] As an example, the echo is a diffracted wave.

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

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

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

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

[0191] As an example, the echo of the first signal is: one path of the first signal.

[0192] As an example, the echo of the first signal is: multiple paths of the first signal.

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

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

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

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

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

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

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

[0200] As an example, the echo of the first signal is formed after the first signal passes through a reflector.

[0201] As an example, the echo of the first signal is formed after the first signal passes through a reflector.

[0202] As an example, the echo of the first signal is formed after the first signal passes through at least one reflector.

[0203] As an example, the multiple echoes of the first signal are formed after the first signal passes through a reflector.

[0204] As an example, the echo of the first signal is formed after the first signal is reflected, refracted, or diffracted in a wireless channel.

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

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

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

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

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

[0210] As an example, the relatedness means mutual derivation.

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

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

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

[0214] As an embodiment, the relatedness refers to being different.

[0215] As an embodiment, the relatedness refers to being inverse.

[0216] As an embodiment, the relatedness refers to being symmetric.

[0217] As an embodiment, the received parameter is the reception angle, and the transmitted parameter is the transmission angle.

[0218] As an embodiment, the received parameter is the reception beam, and the transmitted parameter is the transmission beam.

[0219] As an embodiment, the received parameter is the reception time, and the transmitted parameter is the transmission time.

[0220] As an embodiment, the received parameter is the reception bandwidth, and the transmitted parameter is the transmission bandwidth.

[0221] As an embodiment, the received parameter is the reception frequency, and the transmitted parameter is the transmission frequency.

[0222] As an embodiment, the received parameter is the reception spatial filter parameter, and the transmitted parameter is the transmission spatial filter parameter.

[0223] As an embodiment, the received parameter is the reception array antenna steering vector, and the transmitted parameter is the transmission array antenna steering vector.

[0224] As an embodiment, the received parameter is the number of reception antennas, and the transmitted parameter is the number of transmission antennas.

[0225] As an embodiment, the received parameter is the number of reception MIMO (Multiple Input Multiple Output) layers, and the transmitted parameter is the number of transmission MIMO layers.

[0226] As an embodiment, the received parameter is the reception power, and the transmitted parameter is the transmission power.

[0227] As an embodiment, the received parameter is the reception beamforming, and the transmitted parameter is the transmission beamforming.

[0228] As an example, the received parameter is the received waveform, and the transmitted parameter is the transmitted waveform.

[0229] As an example, the monitoring includes: target recognition.

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

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

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

[0233] As an example, the monitoring includes: judgment.

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

[0235] As an example, the monitoring includes: measuring.

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

[0237] As an example, the monitoring includes: detecting.

[0238] As an example, the monitoring includes: skew processing.

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

[0240] As an example, the monitoring includes: filtering.

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

[0242] As an example, the monitoring refers to: detecting.

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

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

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

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

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

[0248] As an example, the monitoring of the echo of the first signal includes performing binary hypothesis testing on the echo of the first signal.

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

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

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

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

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

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

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

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

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

[0258] As an example, the filtering is band - pass filtering.

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

[0260] As an example, the filtering is Kalman filtering.

[0261] As an example, it is determined whether there is an echo of the first signal by monitoring the echo of the first signal.

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

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

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

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

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

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

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

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

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

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

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

[0273] As an example, the measurement result of the echo of the first signal is the Mean Squared Error (MSE).

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

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

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

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

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

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

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

[0281] As an embodiment, the meeting of 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, the meeting of 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 false alarm probability, or BLER, or 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 the 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 (y / x) symbol.

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

[0295] As an embodiment, the y is 1.

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

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

[0298] As an embodiment, the symbol is used in the NR system.

[0299] As an embodiment, the symbol is used in the 6G system.

[0300] As an embodiment, the symbol is used in a positioning system.

[0301] As an embodiment, the symbol is used in a sensing system.

[0302] As an embodiment, the symbol is 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 set of parameters.

[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 example, within the first time interval, the first node does not receive at least one of PDSCH or PDCCH 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 example, within the first time interval, the first node does not transmit at least one of PUSCH or PUCCH or PRACH.

[0314] As an example, the first signal is transmitted in a first time-domain resource and a first frequency-domain resource.

[0315] As an example, the first signal is transmitted on a first time-domain resource and a first frequency-domain resource.

[0316] As an example, the first signal occupies a first time-domain resource and a first frequency-domain resource.

[0317] As an example, the first time-domain resource and the first frequency-domain resource are configured on a serving cell.

[0318] As an example, the first time-domain resource and the first frequency-domain resource are configured on a BWP (BandWidth, bandwidth part).

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

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

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

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

[0323] As an example, the first time-domain resource overlaps with the first time interval.

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

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

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

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

[0330] As a sub - embodiment of the above - mentioned 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 position of the first time - domain resource is network - configured.

[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 resource is predefined.

[0339] As an embodiment, the first frequency - domain resource is configurable.

[0340] As an embodiment, the first frequency - domain resource is network - configured.

[0341] As an embodiment, the first frequency - domain resource includes 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 transmission of the first signal.

[0344] As an embodiment, the start time of the first time interval is the start time of the K1-th 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 K1-th 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 less 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 transmission 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 correlated with the first parameter set.

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

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

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

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

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

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

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

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

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

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

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

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

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

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

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

[0371] As an example, the first node determines at least part of the first parameter set based on implementation.

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

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

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

[0375] As an example, 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] Example 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in the appendix Figure 2 shown. Appendix Figure 2Describes the 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 continues to evolve in the future by 3GPP; the network architecture 200 can be referred to as 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 can be referred to as 6GS (6G System); the network architecture 200 includes at least one of UE (User Equipment) 201, RAN (Radio Access Network) 202, core network 210, HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and Internet service 230. The network architecture 200 can be interconnected with other access networks, but these entities / interfaces are not shown for simplicity. As shown in the figure, the network architecture 200 provides packet switching services. However, those skilled in the art will easily understand that the various concepts presented throughout this application can be extended to networks that provide circuit switching 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 the Xn interface (e.g., backhaul) / X2 interface. Node 203 can also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (Transmitting and Receiving Point), or some other suitable term. The core network 210 is a 5GC (5G Core Network) / EPC (Evolved Packet Core), or the core network 210 is a 6GC; node 203 provides an access point to the core network 210 for UE 201. Examples of UE 201 include cellular phones, smartphones, 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, automobiles, wearable devices, or any other similar functional device.A person skilled in the art may also refer to the UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, radio unit, remote unit, mobile device, radio 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. The node 203 is connected to the core network 210 through the S1 / NG interface. The core network 210 includes an MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) / LMF (Location Management Function) 211, other MMEs / AMFs / SMFs / LMFs 214, an S-GW (Service Gateway) / UPF (User Plane Function) 212, and a P-GW (Packet Date Network Gateway) / UPF 213. The MME / AMF / SMF / LMF 211 is a control node that processes the signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF / LMF 211 provides bearer and connection management. All user IP (Internet Protocal) packets are transmitted through the S-GW / UPF 212, and the S-GW / UPF 212 itself is connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet service 230. The Internet service 230 includes operator-corresponding Internet protocol services, specifically including the Internet, intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0378] As an example, the UE 201 is a User Equipment (UE).

[0379] As an example, the UE 201 is a Base Station (BS).

[0380] As an example, the UE 201 is a Relay device.

[0381] As an example, the UE 201 is a Gateway device.

[0382] As an example, the UE201 supports LPP.

[0383] As an example, the UE201 supports NRPP (NR Positioning Protocol).

[0384] As an example, the UE201 supports NRPPa (NR Positioning Protocol A).

[0385] As an example, the UE201 supports SPP (sensing Positioning Protocol).

[0386] As an example, the UE201 supports sensing.

[0387] As an example, the UE201 supports bistatic sensing.

[0388] As an example, the UE201 supports monostatic sensing.

[0389] As an example, the UE201 supports beam sweeping.

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

[0391] As an example, the UE201 supports at least one of a Non-Terrestrial Network (NTN) or a Terrestrial Network.

[0392] As an example, the UE201 supports Dual Connection (DC).

[0393] As an example, the UE201 supports sensing.

[0394] As an example, the UE201 supports positioning.

[0395] As an example, the UE201 supports ISAC.

[0396] As an example, the UE201 supports V2X.

[0397] As an example, the UE201 supports UAV.

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

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

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

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

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

[0403] As an example, 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 example, the user equipment is a mobile terminal.

[0408] As an example, the user equipment is a mobile phone or a tablet.

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

[0410] As an example, the user equipment 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 a terminal of an industrial Internet of Things.

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

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

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

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

[0415] As an embodiment, the base station device is a macro cellular base station, a micro cell base station, a pico cell base station, or a femtocell; the base station device is a Base Transceiver Station (BTS), a Node B (NB), a gNB, an eNB, 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 air node, and the air node is a flying 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 an 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, an IAB-donor, an IAB-donor-CU, an IAB-donor-DU, 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 example, the relay device is a router.

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

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

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

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

[0433] Example 3

[0434] Embodiment 3 shows 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 the appendix Figure 3 as follows. Figure 3 It is a schematic diagram illustrating an embodiment of a radio protocol architecture for the user plane 350 and the control plane 300. Figure 3The radio protocol architecture for controlling plane 300 is shown 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. Layer 1 will be referred to as PHY301 herein. Layer 2 (L2 layer) 305 is above PHY301 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 provides handover support. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for disordered reception due to HARQ (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) in a cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in layer 3 (L3 layer) in the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring the lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes layer 1 (L1 layer) and layer 2 (L2 layer). In the user plane 350, the radio protocol architecture is generally the same as the corresponding layers and sublayers in the control plane 300 for 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 data packets to reduce radio transmission overhead. The SDAP (Service Data Adaptation Protocol) sublayer 356 is also included in the L2 layer 355 in the user plane 350. The SDAP sublayer 356 is responsible for mapping between QoS flows and data radio bearers (DRBs) to support service diversity.

[0435] As an example, the Figure 3 radio protocol architecture in

[0436] As an example, the Figure 3The wireless protocol architecture in [ID] is applicable to the second node in this application.

[0437] As an example, at least part of the first parameter set in this application is generated in the RRC306.

[0438] As an example, at least part of the first parameter set in this application is generated at a higher layer.

[0439] As an example, the first signal in this application is generated in the PHY301 or PHY351.

[0440] As an example, the first signal in this application is generated in the PHY301 or PHY351.

[0441] As an example, the first reference signal in this application is generated in the PHY301 or PHY351.

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

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

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

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

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

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

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

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

[0450] As an example, the NAS layer 307 is responsible for supporting the mobility of a user equipment (UE) (including general procedures such as authentication, identification, general 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 payloads.

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

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

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

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

[0455] As an example, 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) for the purpose of positioning the target device using location-related measurement values obtained from one or more reference sources.

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

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

[0458] As an example, the first auxiliary information in the present 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 the appendix Figure 4 as shown. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 that communicate 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 transmitting processor 468, a receiving processor 456, a multi-antenna transmitting processor 457, a multi-antenna receiving processor 458, a transmitter / receiver 454, and an antenna 452.

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

[0463] In a transmission from the second communication device 410 to the first communication device 450, at the second communication device 410, upper layer data packets from the core network are provided to the controller / processor 475. The controller / processor 475 implements L2 layer functionality. In a 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 transmitting processor 416 and the multi-antenna transmitting processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmitting processor 416 implements encoding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, and 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), M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmitting processor 471 performs digital space precoding on the encoded and modulated symbols, including codebook-based precoding and non-codebook-based precoding, and beamforming processing, to generate one or more spatial streams. The transmitting processor 416 then maps each spatial stream to subcarriers, multiplexes with reference signals (e.g., pilots) in the time domain and / or frequency domain, and then uses the inverse fast Fourier transform (IFFT) to generate a physical channel carrying time-domain multi-carrier symbol streams. Subsequently, the multi-antenna transmitting processor 471 performs transmit analog precoding / beamforming operations on the time-domain multi-carrier symbol streams. Each transmitter 418 converts the baseband multi-carrier symbol streams provided by the multi-antenna transmitting processor 471 into radio frequency streams, and then provides them to different antennas 420.

[0464] In the transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives signals via its respective antenna 452. Each receiver 454 recovers the information modulated onto the radio frequency carrier, and converts the radio frequency stream into a baseband multi-carrier symbol stream and provides it to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 perform various signal processing functions of the L1 layer. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receivers 454. The receive processor 456 uses the fast Fourier transform (FFT) to convert the baseband multi-carrier symbol stream after the receive analog precoding / beamforming operations from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receive processor 456, where the reference signal will be used for channel estimation, and the data signal recovers any spatial streams destined for the first communication device 450 after multi-antenna detection in the multi-antenna receive processor 458. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. Subsequently, the receive processor 456 decodes and de-interleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. Subsequently, the upper layer data and control signals are provided to the controller / processor 459. The controller / processor 459 performs the functions of 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. In the 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, control signal processing to recover upper layer data packets from the core network. Subsequently, the upper layer data packets are provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing.

[0465] In the transmission from the first communication device 450 to the second communication device 410, at the first communication device 450, a data source 467 is used to provide an upper layer data packet to a controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission function described at the second communication device 410 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, and implements L2 layer functions for the user plane and the control plane. The controller / processor 459 is also responsible for retransmitting lost packets and signaling to the second communication device 410. A transmit processor 468 performs modulation mapping and channel coding processing. A multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Subsequently, the transmit processor 468 modulates the generated spatial streams into multi-carrier / single-carrier symbol streams, and after an analog precoding / beamforming operation in the multi-antenna transmit processor 457, provides them to different antennas 452 via a transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a radio frequency symbol stream and then provides it to the antenna 452.

[0466] In the transmission from the first communication device 450 to the second communication device 410, the function at the second communication device 410 is similar to the receiving function described at the first communication device 450 in the transmission from the second communication device 410 to the first communication device 450. Each receiver 418 receives a radio frequency signal through its corresponding antenna 420, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 jointly implement L1 layer functions. A controller / processor 475 implements L2 layer functions. The controller / processor 475 may be associated with a memory 476 that stores program code and data. The memory 476 may be referred to as a computer-readable medium. In the transmission from the first communication device 450 to the second communication device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packet from the UE 450. The upper layer data packet from the controller / processor 475 may be provided to the core network.

[0467] As an example, 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 with the at least one processor, and the first communication device 450 is at least: sending a first signal; a first receiver, accompanying the sending of the first signal, monitoring an 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.

[0468] As an example, the first communication device 450 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: sending a first signal; a first receiver, accompanying the sending of the first signal, monitoring an 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.

[0469] As an example, 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 is at least: 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 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 set of parameters; the first RRC message configures at least part of the first set of parameters.

[0470] As an example, the second communication device 410 includes: a memory storing a computer-readable instruction program, the computer-readable instruction program generating actions when executed by at least one processor, the actions including: 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 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 set of parameters; the first RRC message configures at least part of the first set of parameters.

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

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

[0473] As an example, 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 reference signal.

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

[0475] As an example, 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 example, at least one of the antenna 420, the transmitter 418, the transmitting processor 416, and the controller / processor 475 is used to send a first RRC message.

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

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

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

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

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

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

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

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

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

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

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

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

[0489] Example 5

[0490] Embodiment 5 exemplifies a wireless signal transmission flowchart according to an embodiment of the present application, as shown in the appendix. Figure 5 It should be specifically noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

[0491] For First Node U01 , in step S5101, the 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, the first RRC message is received; wherein, the first RRC message configures at least part of the first parameter set; in step S5103, the 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, the first auxiliary information is sent; wherein, the first auxiliary information indicates the first time interval; in step S5105, the 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 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 Third Node N03 , in step S5301, the first UE capability information is received; in step S5302, the first auxiliary information is received.

[0494] For Reflector N04 , the first signal forms an echo of the first signal after being reflected by reflector N04 in the wireless channel.

[0495] In Embodiment 5, the first time interval depends on the transmission 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 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 sensing 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 SLP.

[0516] As an embodiment, the location server is at least one of E-SMLC or 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, there is a wireless connection between the first node U01 and the second node N02.

[0523] As an embodiment, there is a Uu interface connection between the first node U01 and the second node N02.

[0524] As an embodiment, there is an IAB interface connection between the first node U01 and the second node N02.

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

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

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

[0528] As an embodiment, the dashed 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 sensing 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 sensing 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 sensing capability is communication and sensing capability.

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

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

[0540] As an example, a UECapabilityInformation message includes a field that is set to supported.

[0541] As a sub-example of the above example, the name of the one field includes sensing.

[0542] As a sub-example of the above example, the name of the one field includes ISAC.

[0543] As an example, the first UE capability information includes sensing capabilities that do not include the third distance.

[0544] As an example, the first UE capability information indicating the third distance means that the first UE capability information includes sensing capabilities that include the third distance.

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

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

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

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

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

[0550] As an example, the third distance is the distance resolution that the first node U01 can support.

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

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

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

[0554] As an example, the unit of the third distance is meters.

[0555] As an example, the unit of the third distance is centimeters.

[0556] As an example, the unit of the third distance is decimeters.

[0557] As an example, the dashed box F5.2 is optional.

[0558] As an example, the dashed box F5.2 does not exist.

[0559] As an example, the dashed box F5.2 exists.

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

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

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

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

[0564] As an example, at least part of the first parameter set configured by the first RRC message depends on the first UE capability information; the first UE capability information is an RRC message.

[0565] As an example, 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 example, the first RRC message is transmitted through the DCCH (Dedicated Control Channel).

[0567] As an example, the first RRC message is transmitted through the CCCH (Control Channel CCCH).

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

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

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

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

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

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

[0574] As an example, the third node configures at least part of the first parameter set depending on the first UE capability information; the first UE capability information is an LPP message.

[0575] As an example, the dashed box F5.3 is optional.

[0576] As an example, the dashed box F5.3 does not exist.

[0577] As an example, the dashed box F5.3 exists.

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

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

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

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

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

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

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

[0585] As an example, 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; 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; 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 dashed box F5.4 is optional.

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

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

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

[0598] As an embodiment, the first auxiliary information is a UCI (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 example, the first auxiliary information is a UE Assistance Information message.

[0602] As an example, the first auxiliary information is at least one field in a UE Assistance Information message.

[0603] As an example, the first auxiliary information is a field in a UE Assistance Information message.

[0604] As an example, the first auxiliary information is a bit in a UE Assistance Information message.

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

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

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

[0608] As an example, the first RRC message configures the PRACH resources of a preamble to be associated with the first time interval.

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

[0610] As an example, 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 example, the first auxiliary information requests to configure the first time interval.

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

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

[0614] As an example, the first auxiliary information requests to send and receive the first signal in the first time interval.

[0615] As an example, the first auxiliary information requests to send the first signal in the first time interval.

[0616] As an example, the first auxiliary information request receives the first signal during the first time interval.

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

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

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

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

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

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

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

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

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

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

[0627] As an example, the step S5203 is optional.

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

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

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

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

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

[0633] As an example, the step S5203 exists.

[0634] As a sub - embodiment of the above - mentioned embodiment, the above - mentioned method is conducive to improving the sensing performance.

[0635] As a sub - embodiment of the above - mentioned embodiment, the above - mentioned method uses the second node N02 to assist the sensing of the first node U01.

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

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

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

[0639] Example 6

[0640] Embodiment 6 exemplifies a schematic diagram in which the length of the first time interval depends on the first distance according to an embodiment of the present application, as shown in the appendix Figure 6 as shown.

[0641] In Embodiment 6, the first parameter set includes the first distance; 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 the index of the first distance.

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

[0646] As an embodiment, the first parameter set is the 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; L0 and L1 have the same unit.

[0648] As an embodiment, L0 is fixed.

[0649] As an embodiment, L0 is configurable.

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

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

[0652] As an example, the distance unit is pre-configured.

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

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

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

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

[0657] As an example, the distance unit is at least 1 millimeter.

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

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

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

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

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

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

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

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

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

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

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

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

[0670] As an example, the greater the first distance, the greater the length of the first time interval.

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

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

[0673] As an example, the first variable depends on the frequency.

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

[0675] Example 7

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

[0677] In Example 7, the first parameter set includes the 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.

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

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

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

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

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

[0683] As an example, 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 example, the index of the second distance is Q2, and the second distance is equal to Q2 distance units; Q2 is a positive integer.

[0685] As an example, the second distance being not greater than the first distance means that the second distance is less than the first distance.

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

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

[0688] As an example, the second distance indicates the minimum distance of the target.

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

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

[0691] As an example, the second distance being not greater than the first distance means that the second distance is less than the first distance.

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

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

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

[0695] As an example, the start time of the first time interval is the time after the start time of the first signal passes through the second time interval.

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

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

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

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

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

[0701] As an example, the greater the second distance, the greater the length of the second time interval.

[0702] Example 8

[0703] Example 8 exemplifies a schematic diagram of a cycle in which a first time interval belongs to a first candidate time interval according to an embodiment of the present application, as shown in the appendix. Figure 8 As shown.

[0704] In Example 8, the first parameter set 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.

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

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

[0707] As an embodiment, the plurality of 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 - mentioned embodiment, each candidate time interval in the plurality of candidate time intervals is at least one symbol; the first time interval is a non - integer number of symbols.

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

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

[0712] As a sub - embodiment of the above - mentioned embodiment, each candidate time interval in the plurality of candidate time intervals is one symbol; 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 (y / x) symbols.

[0714] As a sub - embodiment of the above - mentioned embodiment, each candidate time interval in the plurality of candidate time intervals is (y / x) symbols; the first time interval is one of the plurality of candidate time intervals.

[0715] As an embodiment, the first time interval is one of the plurality of 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, where the signaling indicates a cycle length and a start offset value, and the plurality of 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 cycle length, the start offset value, and the SFN.

[0719] As an embodiment, the plurality of candidate time intervals depend on the cycle length, the 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 cycle length, the 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 exemplifies a schematic diagram of a first signal and a first time interval according to an embodiment of the present application, as shown in the appendix Figure 9 as shown.

[0726] In Embodiment 9, the first parameter set includes the transmission duration of the first signal; the length of the first time interval depends on the transmission 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 transmission 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 transmission duration of the first signal is the time interval from the first time unit configured for the first signal to the last time unit configured for the first signal.

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

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

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

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

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

[0735] As a sub - embodiment of the above - mentioned embodiment, the greater the first distance, the greater the transmission duration of the first signal.

[0736] As a sub - embodiment of the above - mentioned embodiment, the first distance is configured in the RRC sub - layer.

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

[0738] As a sub - embodiment of the above - mentioned embodiment, the first node determines the transmission 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 transmission duration of the first signal.

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

[0744] As an embodiment, the above - mentioned embodiment is conducive to detecting by using the mixing of the first signal and the echo of the first signal.

[0745] As an embodiment, the above - mentioned embodiment has a lower implementation complexity.

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

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

[0748] Example 10

[0749] Embodiment 10 exemplifies a schematic diagram of a first signal using a chirp signal according to an embodiment of the present application, as shown in the attached Figure 10 figure. In the attached Figure 10 figure, the horizontal axis represents time and the vertical axis represents frequency; the thick solid lines 1, 2,..., N1 are N1 chirps respectively; the N1 is an integer not less than 1.

[0750] In Embodiment 10, the first signal uses a chirp signal, 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, the N1 is 1.

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

[0754] As an embodiment, the 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 of 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 of the N1 chirps is T c .

[0761] As an embodiment, the transmission duration of the first signal depends on T c .

[0762] As an embodiment, the transmission duration of the first signal is equal to the T c is equal.

[0763] As an embodiment, the transmission duration of the first signal and the T c ×N1 are equal.

[0764] As an embodiment, the transmission duration of the first signal and the T c ×N1 + T1×(N1 - 1) are equal; where, the T1 is an offset.

[0765] As an embodiment, the transmission duration of the first signal and the (T c + T1)×N1 are equal; where, the T1 is an offset.

[0766] As an embodiment, the transmission duration of the first signal and the T c ×N1 + T1 are equal; where, the T1 is an offset.

[0767] As an embodiment, the T1 is the time interval between two adjacent Chirps.

[0768] As an embodiment, the T1 is configurable.

[0769] As an embodiment, the T1 is determined by the first node.

[0770] As an embodiment, the T1 is related to the first node.

[0771] As an embodiment, the T1 is related to the parameters of the first node.

[0772] As an embodiment, the T1 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 modulation waves, and the first signal may also adopt single-frequency waves.

[0774] Example 11

[0775] Embodiment 11 exemplifies a schematic diagram of the first signal and the echo of the first signal according to an embodiment of the present application, as shown in the appendix Figure 11 as shown.

[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 the wireless channel; the echo of the first signal is monitored by the first node.

[0777] As an example, that the echo of the first signal is formed by a reflector in a wireless channel means that the echo of the first signal is formed by the reflection, diffraction, or refraction of the first signal by the reflector in the wireless channel.

[0778] As an example, that the echo of the first signal is formed by a reflector in a wireless channel means that the echo of the first signal is formed by the influence of the reflector on the first signal in the wireless channel.

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

[0780] As an example, the reflector is a target for detection and / or tracking.

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

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

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

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

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

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

[0787] As an example, the number of reflectors is not limited in this example.

[0788] As an example, the position of the reflector is not limited in this example.

[0789] As an example, the size of the reflector is not limited in this example.

[0790] Example 12

[0791] Example 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 the appendix Figure 12 shown. In the appendix Figure 12 In it, the processing device 1200 in the first node includes a first receiver 1201 and a first transmitter 1202.

[0792] The first transmitter 1202 transmits the first signal;

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

[0794] In Embodiment 12, the first time interval depends on the transmission 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.

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

[0796] As an embodiment, 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.

[0797] As an embodiment, 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.

[0798] As an embodiment, the first set of parameters includes the transmission duration of the first signal; the length of the first time interval depends on the transmission duration of the first signal.

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

[0800] As an embodiment, the first transmitter 1202 transmits 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.

[0801] As an embodiment, the first transmitter 1202 transmits first auxiliary information before the first signal is transmitted; 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 set of parameters.

[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 the appendix of this application Figure 4at least one of the antenna 452, the receiver 454, the multi-antenna receiving processor 458, the receiving processor 456, the controller / processor 459, the memory 460, or the data source 467.

[0805] As an embodiment, the first receiver 1201 includes at least the antenna 452 and the receiver 454 attached to this application Figure 4 in the present application.

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

[0807] As an embodiment, the first transmitter 1202 includes at least the antenna 452 and the transmitter 454 attached to this application Figure 4 in the present application.

[0808] Example 13

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

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

[0811] In Embodiment 13, the receiver of the first RRC message sends a first signal; along with the transmission 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 transmission 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.

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

[0813] As an embodiment, 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.

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

[0815] As an example, the first parameter set includes the transmission duration of the first signal; the length of the first time interval depends on the transmission duration of the first signal.

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

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

[0818] As an example, the second receiver 1302 receives first auxiliary information; wherein, before the first signal is transmitted, the receiver of the first RRC message transmits the first auxiliary information; the first auxiliary information indicates the first time interval.

[0819] As an example, the second receiver 1302 receives first auxiliary information; wherein, before the first signal is transmitted, the receiver of the first RRC message transmits the first auxiliary information; the first auxiliary information indicates the first time interval.

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

[0821] As an example, 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 attached to this application Figure 4 in this application.

[0822] As an example, the second transmitter 1301 includes at least the antenna 420 and the transmitter 418 attached to this application Figure 4 in this application.

[0823] As an example, the second receiver 1302 includes at least one of the antenna 420 or the receiver 418 or the multi-antenna reception processor 472 or the reception processor 470 or the controller / processor 475 or the memory 476 attached to this application Figure 4 in this application.

[0824] As an example, the second receiver 1302 includes at least antenna 420 and receiver 418 attached to the present application. Figure 4 in.

[0825] Those of ordinary skill in the art can understand that all or part of the steps in the above methods 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 disc. Optionally, all or part of the steps in the above embodiments can also be implemented using one or more integrated circuits. Correspondingly, the various module units in the above embodiments can be implemented in hardware form or in the form of software function modules. The present application is not limited to any specific form of the combination of software and hardware. The user equipment, terminal, and UE in the present application include, but are not limited to, drones, communication modules on drones, remote control airplanes, aircraft, small airplanes, mobile phones, tablet computers, laptops, vehicle-mounted communication devices, wireless sensors, network cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, network cards, vehicle-mounted communication devices, low-cost mobile phones, low-cost tablet computers, and other wireless communication devices. The base stations or system devices in the present 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 is only a preferred embodiment of the present application and is not intended to limit the protection scope of the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A first node used for wireless communication, characterized in that, Comprising: A first transmitter that transmits a first signal; A first receiver that, accompanying the transmission of the first signal, monitors an echo of the first signal in a first time interval; Wherein, the first time interval depends on the transmission 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 transmission duration of the first signal; the length of the first time interval depends on the transmission 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 transmits first UE capability information indicating 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 transmitted, transmits first auxiliary information; Wherein, the first auxiliary information indicates the first time interval.

9. The first node according to any one of claims 1 to 8, characterized in that Comprising: The first receiver that receives a first RRC message; Wherein, the first RRC message configures at least part of the first set of parameters.

10. A method used in a first node for wireless communication, characterized in that, Comprising: Transmit a first signal; A first receiver that, accompanying the transmission of the first signal, monitors an echo of the first signal in a first time interval; Wherein, the first time interval depends on the transmission 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.

11. A second node used for wireless communication, characterized in that, Comprising: A second transmitter that transmits a first RRC message; Wherein, the recipient of the first RRC message transmits a first signal; Accompanying the transmission 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 transmission 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.

12. A method in a second node used for wireless communication, characterized in that, Comprising: Transmit a first RRC message; Wherein, the recipient of the first RRC message transmits a first signal; accompanying the transmission 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 transmission 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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