Method and apparatus used in communication node for wireless communication

Abstract

Disclosed in the present application are a method and apparatus used in a communication node for wireless communication. The method comprises: a communication node using a plurality of spatial filtering parameters to respectively measure reference signals; and sending a first wireless signal, wherein a first spatial filtering parameter is used for sending the first wireless signal, the first spatial filtering parameter is one of the plurality of spatial filtering parameters, and received quality measured on a target path by using the plurality of spatial filtering parameters is used for determining the first spatial filtering parameter. According to the solution provided by the present application, the first spatial filtering parameter determined on the basis of the target path is used to send the first wireless signal, such that the first wireless signal reflects information of a path for the reception of the reference signals, thereby facilitating the detection and / or tracking of targets.

Description

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

[0001] This application claims priority to the Chinese patent application filed with the China Patent Office on January 3, 2024, with application number 202410008132.2 and invention name “A method and device in a communication node used for wireless communication”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to a transmission method and apparatus in a wireless communication system, and in particular to a method and apparatus for determining spatial filtering parameters. Background Art

[0003] In the existing NR (New Radio) protocol, the first path (the first path or the first detected path) is used for timing advance (Timing Advance, T ADV ), calculation of UE (User Equipment) receive-transmit time difference (UE Rx-Tx time difference), calculation of downlink (DL) PRS (Positioning Reference Signal) reference signal received path power (RSRPP), calculation of gNB Rx-Tx time difference, and measurement and / or reporting by the target device based on configuration during the LTE (Long-Term Evolution) Positioning Protocol (LPP) process. Furthermore, when determining spatial filtering parameters for a transmitted signal, the UE may use the same spatial filtering parameters as for the received signal based on the configuration. For example, the UE may use the same spatial filtering parameters as for receiving an SSB (Synchronization Signal Block, or SS / PBCH block) or a CSI (Channel State Information)-RS (Reference Signal) to transmit an SRS (Sounding Reference Signal).

[0004] With the growing demand for sensing, the convergence of sensing and communication capabilities in networks is becoming increasingly evident. ITU-R WP 5D is studying application scenarios for Integrated Sensing and Communication (ISAC) technology for 6G. 3GPP (the 3rd Generation Partnership Project) released Technical Report 22.837 (Rel-19), "Feasibility Study for Integrated Sensing and Communication," which outlines 26 different use cases and integrates potential requirements and key performance indicators (KPIs) for ISAC. The 3GPP RAN 102nd meeting adopted the Study Item (SI) "Study on channel modeling for Integrated Sensing and Communication (ISAC) for NR." The SI focuses on defining channel modeling to support target detection and / or tracking, including drones, people indoors and outdoors, cars (at least outdoors), automated guided vehicles (e.g., in indoor factories), and hazardous objects on roads and railways. Summary of the Invention

[0005] Through research, the inventors discovered that using the same spatial filtering parameters to receive a reference signal and / or transmitting an uplink signal using the same spatial filtering parameters as the received signal is difficult to reflect the path information of the received signal, making it unsuitable for future, particularly next-generation, mobile communication systems. For example, when ISAC is introduced, existing multiplexing solutions are unable to reflect the link information of the detected and / or tracked target.

[0006] To address the above-mentioned issues, the present application provides a solution. While the NR system is used as an example in the description of the above-mentioned issues, the present application is also applicable to scenarios such as LTE, LTE-A (Long-Term Evolution Advanced), 5G-A, or future 6G systems, achieving technical effects similar to those of the NR system. Furthermore, while the present application provides a specific implementation for spatial filtering parameters, the present application can also be used in scenarios with other filtering parameters, achieving technical effects similar to those of spatial filtering parameters. Furthermore, adopting a unified design solution for different scenarios also helps reduce hardware complexity and cost. Furthermore, while the present application provides a specific implementation for PRS, the present application can also be used in scenarios with other signals, such as ISAC-perceived signals, achieving technical effects similar to those of PRS. Furthermore, while the present application is initially intended for the Uu air interface, the present application can also be used for the PC5 interface, achieving technical effects similar to those of the Uu air interface. Furthermore, while the present application is initially intended for the downlink, the present application can also be used for the uplink, achieving technical effects similar to those of the downlink. Furthermore, although the original intention of this application is for the terminal and base station scenario, this application is also applicable to the V2X (Vehicle-to-Everything, Internet of Vehicles) scenario, the communication scenario between the terminal and the relay, and the relay and the base station, to achieve similar technical effects in the terminal and base station scenario. Furthermore, although the original intention of this application is for the terminal and base station scenario, this application is also applicable to the IAB (Integrated Access and Backhaul, integrated access and backhaul) communication scenario, to achieve similar technical effects in the terminal and base station scenario. Furthermore, although the original intention of this application is for the terrestrial network (TN) scenario, this application is also applicable to the non-terrestrial network (NTN) communication scenario, to achieve similar technical effects in the TN scenario. In addition, the use of a unified solution for different scenarios can also help reduce hardware complexity and cost.

[0007] As an embodiment, the interpretation of terminology in this application refers to the definition of 3GPP specification protocol TS36 series.

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

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

[0010] It should be noted that, in the absence of conflict, the embodiments and features in any node of the present application can be applied to any other node. In the absence of conflict, the embodiments and features in the embodiments of the present application can be arbitrarily combined with each other.

[0011] The present application discloses a method in a first node for wireless communication, comprising:

[0012] Using multiple spatial filtering parameters to measure reference signals respectively;

[0013] Sending a first wireless signal; wherein the first spatial filtering parameter is used to send the first wireless signal;

[0014] The first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0015] As an embodiment, the problem to be solved by this application includes: how to measure a reference signal.

[0016] As an embodiment, the characteristics of the above method include: using multiple spatial filtering parameters to measure the reference signal respectively.

[0017] As an embodiment, the problem to be solved by the present application includes: how to reflect the path information of the reference signal through the first wireless signal.

[0018] As an embodiment, the characteristics of the above method include: using first spatial filtering parameters to send the first wireless signal.

[0019] As an embodiment, the problem to be solved by the present application includes: how to determine the first spatial filtering parameter.

[0020] As an embodiment, the characteristics of the above method include: the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0021] As an embodiment, the problem to be solved by this application includes: how to send the first wireless signal.

[0022] As an embodiment, the characteristics of the above method include: the first spatial filtering parameter is used to send the first wireless signal

[0023] As an embodiment, the above method enables the first wireless signal to reflect information on the receiving path of the reference signal.

[0024] As an embodiment, the above method enables the first wireless signal to reflect link information of the detected and / or tracked target.

[0025] As an embodiment, the above method uses multiple spatial filtering parameters to measure the reference signal respectively, thereby improving the resolution.

[0026] As an embodiment, the above method is simple to implement.

[0027] As an embodiment, the above method reduces protocol impact.

[0028] As an embodiment, the above method is beneficial for detecting and / or tracking a target.

[0029] According to one aspect of the present application, the target path follows the first path measured using the multiple spatial filtering parameters.

[0030] As an embodiment, the above method avoids the influence of the first path.

[0031] As an embodiment, the above method reduces signaling overhead.

[0032] As an embodiment, the above method is helpful in avoiding non-target feedback.

[0033] As an embodiment, the above method is useful for determining a target.

[0034] As an embodiment, the above method improves the accuracy of target determination.

[0035] According to one aspect of the present application, the reception quality measured on the first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameters; the first candidate path set includes multiple warps, and the target path is one of the multiple paths.

[0036] As an embodiment, the above method takes into account the influence of multiple warps.

[0037] As an embodiment, the above method reduces the error rate of target recognition.

[0038] As an embodiment, the above method further reduces signaling overhead.

[0039] As an embodiment, the above method further improves the accuracy of target determination.

[0040] According to one aspect of the present application, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

[0041] As an embodiment, the above method takes the accuracy of reception quality into consideration.

[0042] As an embodiment, the above method facilitates target identification and / or matching.

[0043] As an embodiment, the above method further reduces signaling overhead.

[0044] As an embodiment, the above method further improves the accuracy of target determination.

[0045] According to one aspect of the present application, the reference signal occupies multiple multi-carrier symbols in the time domain; each of the multiple spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

[0046] According to one aspect of the present application, the invention comprises:

[0047] Sending first measurement information;

[0048] The first measurement information includes a difference between a reception timing of the reference signal and a transmission timing of the first wireless signal.

[0049] As an embodiment, the above method is useful for determining RTT.

[0050] As an embodiment, the above method is conducive to determining the delay information of the reference signal.

[0051] As an embodiment, the above method is helpful for determining the delay information of the path of the reference signal.

[0052] The present application discloses a method in a second node for wireless communication, comprising:

[0053] Receiving a first wireless signal; wherein the first spatial filter parameter is used by a sender of the first wireless signal to send the first wireless signal;

[0054] The sender of the first wireless signal uses multiple spatial filtering parameters to measure reference signals respectively; the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used by the sender of the first wireless signal to determine the first spatial filtering parameter.

[0055] According to one aspect of the present application, the target path follows the first path measured using the multiple spatial filtering parameters.

[0056] According to one aspect of the present application, the reception quality measured on the first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameters; the first candidate path set includes multiple warps, and the target path is one of the multiple paths.

[0057] According to one aspect of the present application, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

[0058] According to one aspect of the present application, the reference signal occupies multiple multi-carrier symbols in the time domain; each of the multiple spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

[0059] According to one aspect of the present application, the invention comprises:

[0060] receiving first measurement information;

[0061] The first measurement information includes a difference between a reception timing of the reference signal and a transmission timing of the first wireless signal.

[0062] According to one aspect of the present application, the reference signal is sent.

[0063] According to one aspect of the present application, second measurement information is sent; the second measurement information includes the difference between the reception timing of the received frame and the transmission timing of the transmitted frame; the received frame includes the first wireless signal; the transmitted frame is closest to the received frame in time.

[0064] The present application discloses a first node used for wireless communication, comprising:

[0065] A first receiver uses a plurality of spatial filtering parameters to measure reference signals respectively;

[0066] A first transmitter is configured to transmit a first wireless signal, wherein a first spatial filter parameter is used to transmit the first wireless signal;

[0067] The first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0068] The present application discloses a second node used for wireless communication, comprising:

[0069] A second transmitter transmits a reference signal; wherein a receiver of the reference signal uses a plurality of spatial filtering parameters to measure the reference signal respectively;

[0070] a second receiver configured to receive a first wireless signal, wherein the first spatial filter parameter is used by the receiver of the reference signal to transmit the first wireless signal;

[0071] The first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used by the receiver of the reference signal to determine the first spatial filtering parameter.

[0072] As an example, compared with traditional solutions, this application has the following advantages:

[0073] -. Facilitates target detection and / or tracking;

[0074] -. It is helpful to improve the accuracy of target recognition and / or matching;

[0075] - is conducive to determining the reference signal path delay information;

[0076] -. Simple implementation;

[0077] -. Reduce the impact of the agreement;

[0078] -. Reduce signaling overhead. BRIEF DESCRIPTION OF THE DRAWINGS

[0079] Other features, objects and advantages of the present application will become more apparent upon reading the detailed description of non-limiting embodiments with reference to the following drawings:

[0080] FIG1 shows a flow chart of transmission of a reference signal and a first wireless signal according to an embodiment of the present application;

[0081] FIG2 shows a schematic diagram of a network architecture according to an embodiment of the present application;

[0082] FIG3 is a schematic diagram showing an embodiment of a radio protocol architecture of a user plane and a control plane according to an embodiment of the present application;

[0083] FIG4 shows a schematic diagram of a first communication device and a second communication device according to an embodiment of the present application;

[0084] FIG5 shows a wireless signal transmission flow chart according to an embodiment of the present application;

[0085] FIG6 is a schematic diagram showing a target path after a first path is measured using multiple spatial filtering parameters according to an embodiment of the present application;

[0086] FIG7 is a schematic diagram showing how reception quality measured on a first candidate path set using multiple spatial filtering parameters is used to determine a first spatial filtering parameter according to an embodiment of the present application;

[0087] FIG8 is a schematic diagram showing that the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold according to an embodiment of the present application;

[0088] FIG9 is a schematic diagram showing a reference signal occupying multiple multi-carrier symbols in the time domain according to an embodiment of the present application;

[0089] FIG10 shows a schematic diagram of transmission of a reference signal according to an embodiment of the present application;

[0090] FIG11 is a schematic diagram showing the relationship between spatial filtering parameters and multi-carrier symbols occupied by reference signal stations according to an embodiment of the present application;

[0091] FIG12 shows a structural block diagram of a processing device used in a first node according to an embodiment of the present application;

[0092] FIG13 shows a structural block diagram of a processing device used in a second node according to an embodiment of the present application. DETAILED DESCRIPTION

[0093] The technical solution of the present application will be further described in detail below in conjunction with the accompanying drawings. It should be noted that, unless there is a conflict, the embodiments and features in the embodiments of the present application can be combined with each other in any way.

[0094] Example 1

[0095] Example 1 illustrates a flowchart of the transmission of a reference signal and a first wireless signal according to an embodiment of the present application, as shown in Figure 1. In Figure 1, each box represents a step, and it is particularly important to emphasize that the order of the boxes in the figure does not represent the temporal sequence between the steps represented.

[0096] In Example 1, the first node in the present application uses multiple spatial filtering parameters to measure reference signals separately in step 101; in step 102, sends a first wireless signal; wherein the first spatial filtering parameter is used to send the first wireless signal; wherein the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0097] As an embodiment, the sender of the reference signal is at least one RAN node.

[0098] As an embodiment, the sender of the reference signal is at least one transmission point (TP).

[0099] As an embodiment, the reference signal is a downlink signal.

[0100] As an embodiment, the reference signal is of a sidelink (SL).

[0101] As an embodiment, the reference signal is for uplink.

[0102] As an embodiment, the reference signal is used for positioning.

[0103] As an embodiment, the reference signal is used for sensing.

[0104] As an embodiment, the reference signal is RS (Reference Signal).

[0105] As an embodiment, the reference signal is SS.

[0106] As an embodiment, the reference signal is SSB.

[0107] As an embodiment, the reference signal is CSI-RS.

[0108] As an embodiment, the reference signal is a PRS.

[0109] As an embodiment, the reference signal and a SSB QCL (quasi-colocation).

[0110] As an embodiment, the reference signal and a CSI-RS QCL.

[0111] As an embodiment, the reference signal is a perception signal.

[0112] As an embodiment, the reference signal is configured in the RRC sublayer.

[0113] As an embodiment, the reference signal is configured by an RRC message.

[0114] As an embodiment, the reference signal is configured by an RRCReconfiguration message.

[0115] As an embodiment, the reference signal is configured by an RRC message whose name includes RRC and Reconfiguration.

[0116] As an embodiment, the reference signal is configured at the LPP layer.

[0117] As an embodiment, the reference signal is configured by a PRS CONFIGURATION REQUEST message.

[0118] As an embodiment, the reference signal is configured by a MEASUREMENT PRECONFIGURATION REQUIRED message.

[0119] As an embodiment, the reference signal is configured by a PRS Configuration IE.

[0120] As an embodiment, the reference signal is configured on a cell.

[0121] As an embodiment, the reference signal is configured on a BWP.

[0122] As an embodiment, the reference signal is configured on a bandwidth (band).

[0123] As an embodiment, the reference signal is periodic.

[0124] As a sub-embodiment of the above embodiment, the above method reduces signaling overhead.

[0125] As a sub-embodiment of the above embodiment, the above method is conducive to timely acquisition of measurement information of the reference signal.

[0126] As an embodiment, the reference signal is semi-persistent.

[0127] As a sub-embodiment of the above embodiment, the above method reduces the monitoring time of the first node for the reference signal, which is beneficial to energy saving of the first node.

[0128] As a sub-embodiment of the above embodiment, the above method reduces unnecessary transmission of reference signals by the second node, which is beneficial to energy saving of the second node.

[0129] As an embodiment, the reference signal is provided on demand.

[0130] As a sub-embodiment of the above embodiment, the above method is beneficial to energy saving.

[0131] As a sub-embodiment of the above embodiment, the above method reduces the reference signal sent by the second node, which is beneficial to energy saving of the first node.

[0132] As a sub-embodiment of the above embodiment, the above method reduces the reference signal measured by the first node, which is beneficial to energy saving of the first node.

[0133] As a sub-embodiment of the above embodiment, in response to sending a signal, the reference signals are measured respectively using the multiple spatial filtering parameters.

[0134] As a sub-embodiment of the above embodiment, the one signal triggers the reference signal.

[0135] As a sub-embodiment of the above embodiment, the one signal is associated with the reference signal.

[0136] As a sub-embodiment of the above embodiment, the one signal is used to request the reference signal.

[0137] As a sub-embodiment of the above embodiment, the signal is a physical layer signal.

[0138] As a sub-embodiment of the above embodiment, the signal is a wake-up signal (WUS).

[0139] As a sub-embodiment of the above embodiment, the one signal occupies PUCCH.

[0140] As a sub-embodiment of the above embodiment, the one signal occupies PRACH (Physical Random Access Channel).

[0141] As a sub-embodiment of the above embodiment, the one signal occupies PDCCH (Physical Downlink Control Channel).

[0142] As an embodiment, the reference signal is only one reference signal.

[0143] As a sub-embodiment of the above embodiment, the first node uses the multiple spatial filtering parameters to measure the only one reference signal respectively.

[0144] As a sub-embodiment of the above embodiment, the above method is beneficial to improving the performance of spatial filtering parameters.

[0145] As a sub-embodiment of the above embodiment, the above method is beneficial to the accuracy of positioning.

[0146] As a sub-embodiment of the above embodiment, the above method is beneficial to improving resolution.

[0147] As a sub-embodiment of the above embodiment, the above method is conducive to obtaining and feeding back multipath information.

[0148] As a sub-embodiment of the above embodiment, the above method is beneficial for locating a target.

[0149] As a sub-embodiment of the above embodiment, the above method is beneficial for tracking a target.

[0150] As an embodiment, the reference signal is multiple reference signals.

[0151] As a sub-embodiment of the above embodiment, the first node uses the multiple spatial filtering parameters to measure the multiple reference signals respectively.

[0152] As a sub-embodiment of the above embodiment, reference signals measured using any two spatial filtering parameters among the multiple spatial filtering parameters are different.

[0153] As a sub-embodiment of the above embodiment, there are two spatial filtering parameters among the multiple spatial filtering parameters, and reference signals measured using the two spatial filtering parameters are the same.

[0154] As a sub-embodiment of the above embodiment, a reference signal is measured using one of the multiple spatial filtering parameters.

[0155] As a sub-embodiment of the above embodiment, a reference signal is measured using multiple spatial filtering parameters among the multiple spatial filtering parameters.

[0156] As a sub-embodiment of the above embodiment, one spatial filtering parameter among the multiple spatial filtering parameters is used to measure multiple reference signals.

[0157] As an embodiment, the reference signal is at least one reference signal.

[0158] As an embodiment, the measuring includes monitoring.

[0159] As an embodiment, the measuring includes detecting.

[0160] As an embodiment, the measuring includes receiving.

[0161] As an embodiment, the measurement is an L1 measurement.

[0162] As an embodiment, the measurement is RSRP (Reference Signal Received Power) measurement.

[0163] As an embodiment, the measurement is an RSRPP measurement.

[0164] As an embodiment, the measurement is a SINR (Signal to Interference plus Noise Ratio) measurement.

[0165] As an embodiment, the measurement is an SNR (Signal Noise Ratio) measurement.

[0166] As an embodiment, the measurement is an MSE (mean square error) measurement.

[0167] As an embodiment, the measurement is a time measurement.

[0168] As an embodiment, the measurement is a timing measurement.

[0169] As an embodiment, the measurement is a beam level measurement.

[0170] As an embodiment, the measurement is a path level measurement.

[0171] As an embodiment, the path is an arrival path.

[0172] As an embodiment, the path is a time path.

[0173] As an embodiment, the path is a route.

[0174] As an embodiment, the path is multipath.

[0175] As an embodiment, the paths arrive within a given time interval.

[0176] As an embodiment, the arrival time of the path does not exceed a given time interval.

[0177] As an embodiment, the path is the reception amount within a given time interval.

[0178] As an embodiment, the given time interval is configurable.

[0179] As an embodiment, the given time interval is predefined.

[0180] As an embodiment, the given time interval depends on a sampling rate.

[0181] As an embodiment, the given time interval depends on subcarrier spacing (Subcarrier Spacing).

[0182] As an embodiment, measuring the reference signal refers to measuring at least one path of the reference signal.

[0183] As an embodiment, measuring the reference signal refers to measuring multiple paths of the reference signal.

[0184] As an embodiment, measuring the reference signal refers to measuring each path of the reference signal.

[0185] As an embodiment, measuring the reference signal refers to measuring at least a first path (first path / 1st path) of the reference signal.

[0186] As an embodiment, the first path of the reference signal is a path of the reference signal that is detected earliest.

[0187] As an embodiment, the first path of the reference signal is the first path of the reference signal detected in time.

[0188] As an embodiment, the first path of the reference signal is a LOS (Line of Sight) path.

[0189] As an embodiment, the first node assumes that the first path of the reference signal is a LOS path.

[0190] As an embodiment, the first path of the reference signal is an NLOS (Non Line of Sight) path.

[0191] As an embodiment, the first path refers to the first path measured using the multiple spatial filtering parameters.

[0192] As an embodiment, measuring the reference signal refers to: measuring the first path and at most K1 paths of the reference signal; K1 is an integer.

[0193] As an embodiment, K1 is a positive integer.

[0194] As an embodiment, K1 is a non-negative integer.

[0195] As an embodiment, K1 is predefined.

[0196] As an embodiment, K1 is configurable.

[0197] As an embodiment, K1 is 8.

[0198] As an embodiment, K1 is 7.

[0199] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters corresponds to a beam.

[0200] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters corresponds to a digital beam.

[0201] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters corresponds to a simulated beam.

[0202] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters corresponds to a TCI (Transmission Configuration Indicator) state.

[0203] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters corresponds to a TCI state of a reference signal.

[0204] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is a filter.

[0205] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is a digital filter.

[0206] As an embodiment, any spatial filtering parameter among the plurality of spatial filtering parameters is an analog filter.

[0207] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is configurable.

[0208] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is configured in the RRC sublayer.

[0209] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is configured at the LPP layer.

[0210] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is determined by the UE.

[0211] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters includes configuration parameters of the filter.

[0212] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is a configuration parameter of the filter.

[0213] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters includes filter coefficients.

[0214] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is a coefficient of a filter.

[0215] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters includes filter coefficients.

[0216] As an embodiment, any spatial filtering parameter among the multiple spatial filtering parameters is a coefficient of a filter.

[0217] As an embodiment, any spatial filtering parameter among the plurality of spatial filtering parameters is a spatial filter.

[0218] As an embodiment, any spatial filtering parameter among the plurality of spatial filtering parameters is a spatial domain filter.

[0219] As an embodiment, any spatial filtering parameter among the plurality of spatial filtering parameters is a receive filter.

[0220] As an embodiment, any spatial filtering parameter among the plurality of spatial filtering parameters is a spatial domain receive filter.

[0221] As an embodiment, any spatial filtering parameter among the plurality of spatial filtering parameters is a downlink spatial domain transmission filter.

[0222] As an embodiment, any spatial filtering parameter among the plurality of spatial filtering parameters is a spatial transmission filter.

[0223] As an embodiment, any spatial filter parameter among the plurality of spatial filter parameters is a downlink receive spatial filter (DL RX spatial filter).

[0224] As an embodiment, the reference signal is measured within a certain time interval.

[0225] As an embodiment, the reference signal is measured in a first time window.

[0226] As an embodiment, the first time window is an SRS processing window (Sensing Processing Window, PPW).

[0227] As an embodiment, the first time window is a PRS processing window (PRS Processing Window, PPW).

[0228] As an embodiment, the length of the first time window is determined by the first node.

[0229] As an embodiment, the length of the first time window is requested by the first node.

[0230] As an embodiment, the length of the first time window is configured in the RRC sublayer.

[0231] As an embodiment, the length of the first time window is configured at the LPP layer.

[0232] As an embodiment, the first time window is configured periodically.

[0233] As an embodiment, the first time window is event-triggered.

[0234] As an embodiment, the starting time of the first time window depends on the RRC configuration.

[0235] As an embodiment, the starting time of the first time window depends on the multiple multi-carrier symbols; the reference signal occupies the multiple multi-carrier symbols in the time domain; each of the multiple spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

[0236] As an embodiment, the starting time of the first time window depends on a MAC CE.

[0237] As an embodiment, the starting time of the first time window depends on the sending cutoff time of the one signal; wherein, as a response to sending the one signal, the reference signals are measured respectively using the multiple spatial filtering parameters.

[0238] As an embodiment, the reference signals are measured simultaneously and respectively using the multiple spatial filtering parameters.

[0239] As an embodiment, the reference signal is measured respectively in different time intervals using the multiple spatial filtering parameters.

[0240] As an embodiment, the reference signals are measured separately in a TDM manner using the multiple spatial filtering parameters.

[0241] As an embodiment, the receiver of the first wireless signal is a base station.

[0242] As an embodiment, the receiver of the first wireless signal is a reception point (RP).

[0243] As an embodiment, the first wireless signal is a downlink signal.

[0244] As an embodiment, the first wireless signal is an uplink signal.

[0245] As an embodiment, the first wireless signal is a secondary link.

[0246] As an embodiment, the first wireless signal is a physical signal.

[0247] As an embodiment, the first wireless signal is a physical layer signal.

[0248] As an embodiment, the first wireless signal is an SRS (Sounding Reference Signal).

[0249] As an embodiment, the first wireless signal is an IRS (ISAC Reference Signal).

[0250] As an embodiment, the first wireless signal is an SRS (Sensing Reference Signal).

[0251] As an embodiment, the first wireless signal is a perception signal.

[0252] As an embodiment, the first wireless signal is used for positioning.

[0253] As an embodiment, the first wireless signal is used for detection.

[0254] As an embodiment, the first wireless signal is related to the reference signal.

[0255] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal depends on the configuration.

[0256] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by RRC.

[0257] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by an RRCReconfiguration message.

[0258] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by an RRC message whose name includes RRC and Reconfiguration.

[0259] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by LPP.

[0260] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by a MEASUREMENT REQUEST message.

[0261] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by a MEASUREMENT UPDATE message.

[0262] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by a Positioning SRS Resource IE.

[0263] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured by an SRS Configuration IE.

[0264] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured for the reference signal.

[0265] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal is configured to the first node.

[0266] As an embodiment, at least one of the time domain resources, frequency domain resources and code domain resources occupied by the first wireless signal depends on the reference signal.

[0267] As an embodiment, at least one of the frequency domain resources and code domain resources occupied by the first wireless signal is the same as the reference signal.

[0268] As an embodiment, the code domain resources occupied by the first wireless signal and the code domain resources occupied by the reference signal are correlated.

[0269] As an embodiment, the starting time of the time domain resources occupied by the first wireless signal depends on the ending time of the time domain resources occupied by the reference signal.

[0270] As an embodiment, the starting time of the time domain resources occupied by the first wireless signal is the ending time of the time domain resources occupied by the reference signal.

[0271] As an embodiment, the starting time of the time domain resources occupied by the first wireless signal is the T1th symbol after the end time of the time domain resources occupied by the reference signal, and the T1 is predefined or the T1 is default or the T1 is configured.

[0272] As an embodiment, the code domain resource is a sequence.

[0273] As an embodiment, the code domain resource is an RS sequence.

[0274] As an embodiment, the code domain resource is a ZC sequence.

[0275] As an embodiment, the code domain resource is a scrambling code sequence.

[0276] As an embodiment, the phrase "first spatial filtering parameters are used to send the first wireless signal" means that the spatial filtering parameters used to send the first wireless signal depend on the first spatial filtering parameters.

[0277] As an embodiment, the phrase “first spatial filtering parameters are used to send the first wireless signal” means that the spatial filtering parameters used to send the first wireless signal are determined by the first spatial filtering parameters.

[0278] As an embodiment, the phrase "first spatial filtering parameter is used to send the first wireless signal" means that the spatial filtering parameter used to send the first wireless signal is the same as the first spatial filtering parameter.

[0279] As an embodiment, the phrase "a first spatial filtering parameter is used to send the first wireless signal" means that the first node determines that the spatial filtering parameter for sending the first wireless signal is the first spatial filtering parameter.

[0280] As an embodiment, the phrase first spatial filtering parameters are used to send the first wireless signal means that the first node assumes that the spatial filtering parameters for the first wireless signal are the same as the first spatial filtering parameters.

[0281] As an embodiment, the phrase first spatial filtering parameters are used to send the first wireless signal means that in order to send the first wireless signal, the first node uses the same spatial filtering parameters as the first spatial filtering parameters.

[0282] As a sub-embodiment of the above embodiment, the use refers to: being able to use.

[0283] As a sub-embodiment of the above embodiment, the use means: can (may) be used.

[0284] As a sub-embodiment of the above embodiment, the use means: should (shall) be used.

[0285] As a sub-embodiment of the above embodiment, the first spatial filtering parameter is a spatial filtering parameter for sending the first wireless signal.

[0286] As a sub-embodiment of the above embodiment, the spatial filtering parameter of the first wireless signal is the same as the first spatial filtering parameter.

[0287] As an embodiment, the target that measures the reference signal using the multiple spatial filtering parameters triggers the first wireless signal.

[0288] As an embodiment, under the assumption that only the first path of the reference signal is measured using the multiple spatial filtering parameters and the first path is a LOS path, the measurement reference signal does not trigger any wireless signal.

[0289] As an embodiment, under the assumption that only the first warp of the reference signal is measured using the multiple spatial filtering parameters, the measurement reference signal does not trigger any wireless signal.

[0290] As an embodiment, the above method is helpful in reducing the signaling overhead of the first node.

[0291] As an embodiment, the first spatial filtering parameter corresponds to a beam.

[0292] As an embodiment, the first spatial filtering parameter corresponds to a digital beam.

[0293] As an embodiment, the first spatial filtering parameter corresponds to an analog beam.

[0294] As an embodiment, the first spatial filtering parameter corresponds to a TCI state.

[0295] As an embodiment, the first spatial filtering parameter corresponds to the TCI state of the first wireless signal.

[0296] As an embodiment, the TCI state of the first wireless signal is a TCI-UL-State.

[0297] As an embodiment, the TCI state of the first wireless signal is a TCI-State in dl-OrJoint-TCIStateList.

[0298] As an embodiment, the first spatial filtering parameter corresponds to a QCL relationship state.

[0299] As an embodiment, the first spatial filtering parameter is a filter.

[0300] As an embodiment, the first spatial filtering parameter is a digital filter.

[0301] As an embodiment, the first spatial filtering parameter is an analog filter.

[0302] As an embodiment, the first spatial filtering parameter is a parameter of a filter.

[0303] As an embodiment, the first spatial filtering parameter is a coefficient of a filter.

[0304] As an embodiment, the first spatial filtering parameter is a spatial filter.

[0305] As an embodiment, the first spatial filtering parameter is a spatial domain filter.

[0306] As an embodiment, the first spatial filtering parameter is a spatial domain transmission filter.

[0307] As an embodiment, the first spatial filtering parameter is a transmission filter.

[0308] As an embodiment, the first spatial filtering parameter is an uplink spatial domain transmission filter.

[0309] As an embodiment, the first spatial filtering parameter is a spatial transmission filter.

[0310] As an embodiment, the first spatial filtering parameter is a spatial domain transmission filter.

[0311] As an embodiment, the first spatial filtering parameter is an uplink transmit spatial filter (UL TX spatial filter).

[0312] As an embodiment, the meaning that the first spatial filtering parameter is one of the multiple spatial filtering parameters includes: determining the first spatial filtering parameter from the multiple spatial filtering parameters.

[0313] As a sub-embodiment of the above embodiment, the first node determines the first spatial filtering parameter from the multiple spatial filtering parameters.

[0314] As a sub-embodiment of the above embodiment, the second node determines the first spatial filtering parameter from the multiple spatial filtering parameters.

[0315] As an embodiment, the meaning that the first spatial filtering parameter is one of the multiple spatial filtering parameters includes: the first spatial filtering parameter is the same as one of the multiple spatial filtering parameters.

[0316] As an embodiment, the first spatial filtering parameter is one of the multiple spatial filtering parameters, which means that the first spatial filtering parameter is the same as one of the multiple spatial filtering parameters.

[0317] As an embodiment, the reception quality is L1 filtered.

[0318] As an embodiment, the reception quality is L3 filtered.

[0319] As an embodiment, the reception quality is filtered.

[0320] As an embodiment, the reception quality is matched filtered.

[0321] As an embodiment, the reception quality is Wiener filtered.

[0322] As an embodiment, the reception quality is filtered by a pulse shaping filter.

[0323] As an embodiment, the reception quality is subjected to a rectangular filter.

[0324] As an embodiment, the reception quality is delay.

[0325] As an embodiment, the reception quality is Doppler spread.

[0326] As an embodiment, the reception quality is RRSP.

[0327] As an embodiment, the reception quality is SINR.

[0328] As an embodiment, the reception quality is SNR.

[0329] As an embodiment, the reception quality is MSE.

[0330] As an embodiment, the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter, which means that the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter from the multiple spatial filtering parameters.

[0331] As an embodiment, the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter, which means: multiple paths of the reference signal are measured using at least one spatial filtering parameter among the multiple spatial filtering parameters, and only the reception quality of the target path among the multiple paths is used to determine the first spatial filtering parameter.

[0332] As an embodiment, the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter, which means: only one spatial filtering parameter among the multiple spatial filtering parameters is used to measure multiple paths of the reference signal, and only the reception quality of the target path among the multiple paths is used to determine the first spatial filtering parameter.

[0333] As an embodiment, the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter, which means: multiple paths of the reference signal are measured respectively using multiple spatial filtering parameters among the multiple spatial filtering parameters, and only the reception quality of the target path among the multiple paths is used to determine the first spatial filtering parameter.

[0334] As an embodiment, the reception quality of the reference signal measured using the multiple spatial filtering parameters is not used to determine the first spatial filtering parameter.

[0335] As an embodiment, the reception quality of the reference signal measured using the multiple spatial filtering parameters depends on the reception quality of the reference signal measured using each of the multiple spatial filtering parameters.

[0336] As an embodiment, the reception quality of the reference signal measured using the multiple spatial filtering parameters depends on the reception quality of the reference signal measured using all the spatial filtering parameters among the multiple spatial filtering parameters.

[0337] As an embodiment, the sensing signal is used to track a target.

[0338] As an embodiment, the sensing signal is used to detect a target.

[0339] As an embodiment, the sensing signal is used for positioning.

[0340] As an embodiment, the perception signal is an ISAC perception signal.

[0341] As an embodiment, the perception signal is a perception reference signal.

[0342] As an embodiment, the perception signal is a perception physical signal.

[0343] As an embodiment, the sensing signal is a sensing pulse.

[0344] As an embodiment, the perception signal is a chirp signal.

[0345] As an embodiment, the perception signal is a group of chirp signals.

[0346] As an embodiment, the perception signal is a chirp code chip.

[0347] As an embodiment, the perception signal is a group of chirp chips.

[0348] As an embodiment, the perception signal occupies at least one OFDM (Orthogonal Frequency Division Multiplexing) RE (Resource Element).

[0349] As an embodiment, the perception signal occupies at least one OFDM time-frequency unit.

[0350] As an embodiment, the perception signal occupies at least one OTFS RE.

[0351] As an embodiment, the sensing signal occupies at least one OTFS delay-Doppler unit.

[0352] As an embodiment, the sensing signal occupies at least one FMCW (frequency modulated continuous wave) RE.

[0353] As an embodiment, the sensing signal occupies at least one FMCW delay-Doppler unit.

[0354] As an embodiment, the perception signal occupies a group of OFDM REs.

[0355] As an embodiment, the perception signal occupies a group of OFDM time-frequency units.

[0356] As an embodiment, the perception signal occupies a group of OTFS (Orthogonal Time Frequency Space) REs.

[0357] As an embodiment, the sensing signal occupies a group of OTFS delay-Doppler units.

[0358] As an embodiment, the sensing signal occupies a group of FMCW REs.

[0359] As an embodiment, the sensing signal occupies a group of FMCW delay-Doppler units.

[0360] As an embodiment, the perception signal occupies at least one perception signal transmission symbol. As an embodiment, the assumption in this application may be "can assume," "may assume," "shall assume," "should assume," or similar concepts; further, the assumption in this application may be equivalently replaced by "consider," "regard as," or similar concepts; further, the meaning of the assumption in this application may vary in different embodiments.

[0361] Example 2

[0362] Embodiment 2 illustrates a schematic diagram of a network architecture according to an embodiment of the present application, as shown in FIG2 . FIG2 illustrates a network architecture 200 . The network architecture 200 is a 5G NR (New Radio) / LTE (Long-Term Evolution) / LTE-A (Long-Term Evolution Advanced) system, or the network architecture 200 is a 5G+ network architecture, or the network architecture 200 is a 6G network architecture, or the network architecture 200 is a network architecture that will continue to evolve in the future by 3GPP; the network architecture 200 may be called a 5GS (5G System) / EPS (Evolved Packet System), or the network architecture 200 may be called a 6GS (6G System); the network architecture 200 includes at least one of a UE (User Equipment) 201, a RAN (Radio Access Network) 202, a core network 210, an HSS (Home Subscriber Server) / UDM (Unified Data Management) 220, and an Internet service 230. The network architecture 200 can interconnect with other access networks, but for simplicity, these entities / interfaces are not shown. As shown, the network architecture 200 provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks providing circuit-switched services or other cellular networks. The RAN includes node 203 and other nodes 204. Node 203 provides user and control plane protocol termination towards UE 201. Node 203 can be connected to other nodes 204 via an Xn interface (e.g., backhaul) / X2 interface. Node 203 may also be referred to as a base station, base transceiver station, radio base station, radio transceiver, transceiver function, basic service set (BSS), extended service set (ESS), TRP (transmitter / receiver node), or some other appropriate terminology. The core network 210 is a 5G Core Network (5G Core Network) / EPC (Evolved Packet Core), or alternatively, a 6G Core Network; node 203 provides an access point to the core network 210 for UE 201.Examples of UE 201 include cellular phones, smart phones, Session Initiation Protocol (SIP) phones, laptop computers, personal digital assistants (PDAs), satellite radios, non-terrestrial base station communications, satellite mobile communications, global positioning systems, multimedia devices, video devices, digital audio players (e.g., MP3 players), cameras, game consoles, drones, aircraft, narrowband Internet of Things devices, machine type communication devices, land vehicles, cars, wearable devices, or any other similar functional devices. Those skilled in the art may also refer to UE 201 as a mobile station, subscriber station, mobile unit, subscriber unit, wireless unit, remote unit, mobile device, wireless device, wireless communication device, remote device, mobile subscriber station, access terminal, mobile terminal, wireless terminal, remote terminal, handset, user agent, mobile client, client, or some other suitable term. Node 203 is connected to the core network 210 via an S1 / NG interface. The core network 210 includes the MME (Mobility Management Entity) / AMF (Authentication Management Field) / SMF (Session Management Function) / LMF (Location Management Function) 211, other MMEs / AMFs / SMFs / LMFs 214, the S-GW (Service Gateway) / UPF (User Plane Function) 212, and the P-GW (Packet Data Network Gateway) / UPF 213. The MME / AMF / SMF / LMF 211 is the control node that handles signaling between the UE 201 and the core network 210. Generally, the MME / AMF / SMF / LMF 211 provides bearer and connection management. All user Internet Protocol (IP) packets are transmitted through the S-GW / UPF 212, which is itself connected to the P-GW / UPF 213. The P-GW provides UE IP address allocation and other functions. The P-GW / UPF 213 is connected to the Internet Services 230. The Internet Services 230 includes the operator's corresponding Internet Protocol services, which may include the Internet, Intranet, IMS (IP Multimedia Subsystem), and packet-switched streaming services.

[0363] As an embodiment, the UE 201 is a user equipment (UE).

[0364] As an embodiment, the UE 201 is a base station (BS).

[0365] As an embodiment, the UE 201 is a relay device.

[0366] As an embodiment, the UE 201 is a gateway device.

[0367] As an embodiment, the UE 201 is a target device.

[0368] As an embodiment, the target device is a UE.

[0369] As an embodiment, the target device is a SET.

[0370] As an embodiment, the UE 201 supports LPP.

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

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

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

[0374] As an embodiment, the UE 201 supports perception.

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

[0376] As an embodiment, the UE 201 supports monostatic awareness.

[0377] As an embodiment, the UE 201 supports beam sweeping.

[0378] As an embodiment, the UE 201 supports using multiple spatial filtering parameters to measure reference signals respectively.

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

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

[0381] As an embodiment, the node 203 is a user equipment.

[0382] As an embodiment, the node 203 is a relay device.

[0383] As an embodiment, the node 203 is a gateway device.

[0384] As an embodiment, the node 203 is a location server.

[0385] As an embodiment, the location server includes LMF.

[0386] As an embodiment, the location server includes an SLP.

[0387] As an embodiment, the location server is at least one of E-SMLC, LMF or SLP.

[0388] As an embodiment, the user equipment supports low-latency and high-reliability transmission.

[0389] As an embodiment, the user equipment supports at least one of a non-terrestrial network (NTN) or a terrestrial network (Terrestrial Network).

[0390] As an embodiment, the user equipment supports dual connection (Dual Connection, DC).

[0391] As an embodiment, the user equipment supports ISAC.

[0392] As an embodiment, the user equipment is a mobile terminal.

[0393] As an embodiment, the user device is a mobile phone or a tablet.

[0394] As an embodiment, the user equipment is an aircraft.

[0395] As an embodiment, the user device is an Internet of Things device, and the Internet of Things device is an Internet of Things terminal or a vehicle-mounted terminal or a ship or an industrial Internet of Things terminal.

[0396] As an embodiment, the user equipment is a test device or a signaling tester.

[0397] As an embodiment, the user equipment is an IAB (Integrated Access and Backhaul)-MT.

[0398] As an embodiment, the base station device supports transmission in a non-terrestrial network.

[0399] As an embodiment, the base station device supports transmission of a terrestrial network.

[0400] As an embodiment, the base station device is a macro cellular (Marco Cellular) base station or a micro cell (Micro Cell) base station or a pico cell (Pico Cell) base station or a home base station (Femtocell); the base station device is a base transceiver station (Base Transceiver Station, BTS) or a node B (NodeB, NB) or a gNB or an eNB or an ng-eNB or an en-gNB.

[0401] 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).

[0402] As an embodiment, the base station device is an aerial node, and the aerial node is a flight platform device, a satellite device, or an NTN base station.

[0403] As an embodiment, the base station device is a test device or a signaling tester.

[0404] As an embodiment, the base station device is a gateway device.

[0405] As an embodiment, the base station device is a RAN node.

[0406] As an embodiment, the RAN node is a NG-RAN node.

[0407] As an embodiment, the RAN node is a gNB.

[0408] As an embodiment, the RAN node is an ng-eNB.

[0409] As an embodiment, the RAN node is a NodeB.

[0410] As an embodiment, the RAN node is an eNodeB.

[0411] As an embodiment, the base station device is an IAB node, and the IAB node is an IAB-node or an IAB-donor or an IAB-donor-CU or an IAB-donor-DU or an IAB-DU or an IAB-MT.

[0412] As an embodiment, the relay device is a relay, and the relay is an L3 relay, an L2 relay, or an L1 relay.

[0413] As an embodiment, the relay device is a router.

[0414] As an embodiment, the relay device is a RIS.

[0415] As an embodiment, the relay device is a switch or a gateway device.

[0416] As an embodiment, the relay device is a user equipment.

[0417] As an embodiment, the relay device is a network device.

[0418] Example 3

[0419] Embodiment 3 illustrates a schematic diagram of an embodiment of a radio protocol architecture for a user plane and a control plane according to the present application, as shown in FIG3 . FIG3 is a schematic diagram illustrating an embodiment of a radio protocol architecture for a user plane 350 and a control plane 300. FIG3 illustrates the radio protocol architecture for the control plane 300 using at least Layer 1, Layer 2, and Layer 3. Layer 1 (L1 layer) is the lowest layer and implements various PHY (physical layer) signal processing functions. The L1 layer will be referred to herein as PHY 301. Layer 2 (L2 layer) 305 is above PHY 301 and includes a MAC (Medium Access Control) sublayer 302, an RLC (Radio Link Control) sublayer 303, and a PDCP (Packet Data Convergence Protocol) sublayer 304. The PDCP sublayer 304 provides multiplexing between different radio bearers and logical channels. The PDCP sublayer 304 also provides security by encrypting data packets and supports inter-zone mobility. The RLC sublayer 303 provides segmentation and reassembly of upper layer data packets, retransmission of lost data packets, and reordering of data packets to compensate for out-of-order reception due to HARQ (Hybrid Automatic Repeat Request). The MAC sublayer 302 provides multiplexing between logical and transport channels. The MAC sublayer 302 is also responsible for allocating various radio resources (e.g., resource blocks) within a cell. The MAC sublayer 302 is also responsible for HARQ operations. The RRC (Radio Resource Control) sublayer 306 in Layer 3 (L3) of the control plane 300 is responsible for obtaining radio resources (i.e., radio bearers) and configuring lower layers using RRC signaling. The radio protocol architecture of the user plane 350 includes Layer 1 (L1) and Layer 2 (L2). The radio protocol architecture in the user plane 350 is generally identical to the corresponding layers and sublayers in the control plane 300, including the physical layer 351, the PDCP sublayer 354 in the L2 layer 355, the RLC sublayer 353 in the L2 layer 355, and the MAC sublayer 352 in the L2 layer 355. However, the PDCP sublayer 354 also provides header compression for upper layer packets to reduce radio transmission overhead. The L2 layer 355 in the user plane 350 also includes the SDAP (Service Data Adaptation Protocol) sublayer 356, which is responsible for mapping QoS flows to data radio bearers (DRBs) to support service diversity.

[0420] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the first node in this application.

[0421] As an embodiment, the wireless protocol architecture in FIG3 is applicable to the second node in this application.

[0422] As an embodiment, the reference signal in this application is generated by the PHY301 or PHY351.

[0423] As an embodiment, the first wireless signal in the present application is generated by the PHY301 or PHY351.

[0424] As an embodiment, the first measurement information in the present application is generated in the RRC sublayer 306.

[0425] As an embodiment, the radio protocol architecture of the control plane 300 may further include a NAS (Non Access Stratum) layer 307 .

[0426] As an embodiment, the NAS layer 307 is responsible for supporting the mobility of the user equipment (UE) (including common procedures such as authentication, identification, common UE configuration update and security mode control procedures), and / or, supporting session management procedures to establish and maintain data connectivity between the terminal and the data network, and / or, providing SMS, LPP, LCS, UE policy container, SOR transparent container and UE parameter update information payload.

[0427] As an embodiment, the first measurement information in this application is generated in the NAS layer 307 .

[0428] As an embodiment, the radio protocol architecture of the control plane 300 may further include an LPP layer 308 .

[0429] As an embodiment, the LPP layer 308 is used point-to-point between a location server (E-SMLC, LMF or SLP) and a target device (UE or SET) to locate the target device using location-related measurements obtained from one or more reference sources.

[0430] As an embodiment, the first measurement information in this application is generated in the LPP layer 308 .

[0431] As a sub-embodiment of the above embodiment, the higher layer is the NAS layer 307 .

[0432] As a sub-embodiment of the above embodiment, the higher layer is the LPP layer 308 .

[0433] As an embodiment, the first measurement information in the present application is generated in the MAC sublayer 302 or the MAC sublayer 352.

[0434] As an embodiment, the first measurement information in this application is generated by the PHY301 or PHY351.

[0435] Example 4

[0436] Embodiment 4 shows a schematic diagram of a first communication device and a second communication device according to the present application, as shown in Figure 4. Figure 4 is a block diagram of a first communication device 450 and a second communication device 410 communicating with each other in an access network.

[0437] The first communication device 450 includes a controller / processor 459 , a memory 460 , a data source 467 , a transmit processor 468 , a receive processor 456 , a multi-antenna transmit processor 457 , a multi-antenna receive processor 458 , a transmitter / receiver 454 and an antenna 452 .

[0438] The second communication device 410 includes a controller / processor 475 , a memory 476 , a receive processor 470 , a transmit processor 416 , a multi-antenna receive processor 472 , a multi-antenna transmit processor 471 , a transmitter / receiver 418 , and an antenna 420 .

[0439] During transmission from the second communication device 410 to the first communication device 450, upper layer data packets from the core network are provided to the controller / processor 475 at the second communication device 410. The controller / processor 475 implements L2 layer functionality. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 475 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and radio resource allocation to the first communication device 450 based on various priority metrics. The controller / processor 475 is also responsible for retransmission of lost packets and signaling to the first communication device 450. The transmit processor 416 and the multi-antenna transmit processor 471 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 416 implements coding and interleaving to facilitate forward error correction (FEC) at the second communication device 410, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase-shift keying (BPSK), quadrature phase-shift keying (QPSK), M-phase-shift keying (M-PSK), and M-quadrature amplitude modulation (M-QAM)). The multi-antenna transmit processor 471 performs digital spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 416 then maps each spatial stream to a subcarrier, multiplexes it with a reference signal (e.g., a pilot) in the time and / or frequency domain, and then uses an inverse fast Fourier transform (IFFT) to generate a physical channel carrying the time-domain multicarrier symbol stream. The multi-antenna transmit processor 471 then performs transmit analog precoding / beamforming operations on the time-domain multicarrier symbol stream. Each transmitter 418 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 471 into a radio frequency stream, and then provides it to a different antenna 420.

[0440] During transmission from the second communication device 410 to the first communication device 450, at the first communication device 450, each receiver 454 receives a signal via its corresponding antenna 452. Each receiver 454 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream, which is provided to the receive processor 456. The receive processor 456 and the multi-antenna receive processor 458 implement various L1 signal processing functions. The multi-antenna receive processor 458 performs receive analog precoding / beamforming operations on the baseband multi-carrier symbol stream from the receiver 454. The receive processor 456 converts the baseband multi-carrier symbol stream, after the receive analog precoding / beamforming operations, from the time domain to the frequency domain using a fast Fourier transform (FFT). In the frequency domain, the receive processor 456 demultiplexes the physical layer data signal and reference signal, where the reference signal is used for channel estimation. The data signal undergoes multi-antenna detection in the multi-antenna receive processor 458 to recover any spatial streams destined for the first communication device 450. The symbols on each spatial stream are demodulated and recovered in the receive processor 456, and soft decisions are generated. The receive processor 456 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 410 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 459. The controller / processor 459 implements the functions of the L2 layer. The controller / processor 459 may be associated with a memory 460 that stores program code and data. The memory 460 may be referred to as a computer-readable medium. During transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the core network. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 layer for L3 processing.

[0441] During transmission from the first communication device 450 to the second communication device 410, a data source 467 is used at the first communication device 450 to provide upper layer data packets to the controller / processor 459. The data source 467 represents all protocol layers above the L2 layer. Similar to the transmission functionality at the second communication device 410 described in the transmission from the second communication device 410 to the first communication device 450, the controller / processor 459 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels based on radio resource allocation, implementing L2 layer functions for the user plane and control plane. The controller / processor 459 is also responsible for retransmission of lost packets and signaling to the second communication device 410. The transmit processor 468 performs modulation mapping and channel coding, while the multi-antenna transmit processor 457 performs digital multi-antenna spatial precoding, including codebook-based and non-codebook-based precoding, and beamforming. The transmit processor 468 then modulates the resulting spatial stream into a multi-carrier / single-carrier symbol stream. After analog precoding and beamforming operations in the multi-antenna transmit processor 457, the stream is provided to different antennas 452 via the transmitter 454. Each transmitter 454 first converts the baseband symbol stream provided by the multi-antenna transmit processor 457 into a RF symbol stream before providing it to the antenna 452.

[0442] During transmission from the first communications device 450 to the second communications device 410, the functionality at the second communications device 410 is similar to the reception functionality at the first communications device 450 described for transmission from the second communications device 410 to the first communications device 450. Each receiver 418 receives RF signals via its corresponding antenna 420, converts the received RF signals into baseband signals, and provides the baseband signals to a multi-antenna receive processor 472 and a receive processor 470. The receive processor 470 and the multi-antenna receive processor 472 collectively implement L1 layer functionality. A controller / processor 475 implements L2 layer functionality. The controller / processor 475 may be associated with a memory 476 storing program codes and data. The memory 476 may be referred to as a computer-readable medium. During transmission from the first communications device 450 to the second communications device 410, the controller / processor 475 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the UE 450. Upper layer packets from controller / processor 475 may be provided to the core network.

[0443] As an embodiment, the first communication device 450 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor, and the first communication device 450 at least: uses multiple spatial filtering parameters to measure reference signals respectively; sends a first wireless signal; wherein the first spatial filtering parameter is used to send the first wireless signal; wherein the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0444] As an embodiment, the first communication device 450 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates actions when executed by at least one processor, the actions including: using multiple spatial filtering parameters to measure reference signals respectively; sending a first wireless signal; wherein the first spatial filtering parameter is used to send the first wireless signal; wherein the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0445] As an embodiment, the second communication device 410 includes: at least one processor and at least one memory, the at least one memory including computer program code; the at least one memory and the computer program code being configured to be used with the at least one processor. The second communication device 410 at least: receives a first wireless signal; wherein a first spatial filtering parameter is used by a sender of the first wireless signal to send the first wireless signal; wherein the sender of the first wireless signal uses multiple spatial filtering parameters to measure reference signals respectively; the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used by the sender of the first wireless signal to determine the first spatial filtering parameter.

[0446] As an embodiment, the second communication device 410 includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor, and the action includes: receiving a first wireless signal; wherein a first spatial filtering parameter is used by the sender of the first wireless signal to send the first wireless signal; wherein the sender of the first wireless signal uses multiple spatial filtering parameters to measure reference signals respectively; the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used by the sender of the first wireless signal to determine the first spatial filtering parameter.

[0447] As an embodiment, at least one of the antenna 452 , the receiver 454 , the receive processor 456 , and the controller / processor 459 is used to receive a reference signal.

[0448] As an embodiment, at least one of the antenna 420, the transmitter 418, the transmit processor 416, and the controller / processor 475 is used to transmit a reference signal.

[0449] As an embodiment, at least one of the antenna 452, the transmitter 454, the transmit processor 468, and the controller / processor 459 is used to transmit a first wireless signal.

[0450] As an embodiment, at least one of the antenna 420 , the receiver 418 , the receiving processor 470 , and the controller / processor 475 is used to receive a first wireless signal.

[0451] As an embodiment, at least one of the antenna 452 , the transmitter 454 , the transmit processor 468 , and the controller / processor 459 is used to send first measurement information.

[0452] As an embodiment, at least one of the antenna 420 , the receiver 418 , the receiving processor 470 , and the controller / processor 475 is used to receive first measurement information.

[0453] As an embodiment, the first communication device 450 corresponds to the first node in this application.

[0454] As an embodiment, the second communication device 410 corresponds to the second node in this application.

[0455] As an embodiment, the first communication device 450 is a user equipment.

[0456] As an embodiment, the first communication device 450 is a base station device.

[0457] As an embodiment, the first communication device 450 is a relay device.

[0458] As an embodiment, the first communication device 450 is a target device.

[0459] As an embodiment, the second communication device 410 is a user equipment.

[0460] As an embodiment, the second communication device 410 is a base station device.

[0461] As an embodiment, the second communication device 410 is a location server.

[0462] As an embodiment, the second communication device 410 is a relay device.

[0463] Example 5

[0464] Example 5 illustrates a wireless signal transmission flow chart according to an embodiment of the present application, as shown in FIG5. It should be noted that the order in this example does not limit the signal transmission order and implementation order in the present application.

[0465] For the first node U01: in step S5101, multiple spatial filtering parameters are used to measure the reference signal respectively; in step S5102, a first wireless signal is sent; wherein the first spatial filtering parameter is used to send the first wireless signal; in step S5103, first measurement information is sent.

[0466] For the second node N02: in step S5201, receive the first wireless signal; in step S5202, send second measurement information; the second measurement information includes the difference between the receiving timing of the received frame and the sending timing of the sent frame; the received frame includes the first wireless signal.

[0467] For the third node N03: in step S5301, the reference signal is sent.

[0468] For the fourth node N04: in step S5401, receive the first measurement information; in step S5402, receive the second measurement information.

[0469] In Example 5, the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter; the first measurement information includes the difference between the reception timing of the reference signal and the transmission timing of the first wireless signal.

[0470] As an embodiment, the first node U01 and the second node N02 are connected wirelessly.

[0471] As an embodiment, the first node U01 and the second node N02 are connected via a Uu port.

[0472] As an embodiment, the first node U01 and the second node N02 are connected via an IAB port.

[0473] As an embodiment, the first node U01 and the second node N02 are connected via a PC5 interface.

[0474] As an embodiment, the first node U01 and the third node N03 are connected wirelessly.

[0475] As an embodiment, the first node U01 and the third node N03 are connected via a Uu port.

[0476] As an embodiment, the first node U01 and the third node N03 are connected via an IAB port.

[0477] As an embodiment, the first node U01 and the third node N03 are connected via a PC5 interface.

[0478] As an embodiment, the first node U01 and the fourth node N04 are connected wirelessly.

[0479] As an embodiment, the first node U01 and the fourth node N04 are connected via a wired connection.

[0480] As an embodiment, the first node U01 and the fourth node N04 are connected via a Uu port.

[0481] As an embodiment, the first node U01 and the fourth node N04 are connected via an IAB port.

[0482] As an embodiment, the first node U01 and the fourth node N04 are connected via a PC5 interface.

[0483] As an embodiment, the first node is a target device.

[0484] As an embodiment, the first node is a UE.

[0485] As an embodiment, the first node is a RAN node.

[0486] As an embodiment, the second node is a RAN node.

[0487] As an embodiment, the second node is part of a RAN node.

[0488] As an embodiment, the second node is a receiving point, and the definition of the RP refers to 3GPP TS 38.305.

[0489] As an embodiment, the second node is an SRS-only RP, and the definition of the SRS-only RP refers to 3GPP TS 38.305.

[0490] As an embodiment, the second node is a sensing-only RP.

[0491] As an embodiment, the second node is an IRS-only RP.

[0492] As an embodiment, the second node is a Transmission-Reception Point (TRP), and the definition of the TRP refers to 3GPP TS 38.305.

[0493] As an embodiment, the third node and the second node are the same.

[0494] As an embodiment, the third node and the second node are different.

[0495] As an embodiment, the third node is a transmitting point, and the definition of the TP refers to 3GPP TS 38.305.

[0496] As an embodiment, the third node is a PRS-only TP, and the definition of the PRS-only TP refers to 3GPP TS 38.305.

[0497] As an embodiment, the third node N03 uses the multiple spatial filtering parameters to send the reference signals respectively.

[0498] As an embodiment, the third node N03 uses only one spatial filtering parameter to send the reference signal.

[0499] As an embodiment, the fourth node is the same as the second node.

[0500] As an embodiment, the fourth node is different from the second node.

[0501] As an embodiment, the fourth node is a UE.

[0502] As an embodiment, the fourth node is a RAN node.

[0503] As an embodiment, the fourth node is a location server.

[0504] As an embodiment, the first node is a RAN node; the second node, the third node and the fourth node are a UE.

[0505] As an embodiment, the first node is a UE; the second node, the third node and the fourth node are a RAN node.

[0506] As an embodiment, the first node is a target device; the second node and the third node are a RAN node; and the fourth node is a location server.

[0507] As an embodiment, the first node is a target device; the second node and the third node are respectively a RAN node; and the fourth node is a location server.

[0508] As an embodiment, the dotted box F5.1 is optional.

[0509] As an embodiment, the dotted box F5.1 exists.

[0510] As an embodiment, the dotted box F5.1 does not exist.

[0511] As an embodiment, the dotted box F5.2 is optional.

[0512] As an embodiment, the dotted box F5.2 exists.

[0513] As a sub-embodiment of the above embodiment, the first node is a target device; the second node and the third node are respectively a RAN node; and the fourth node is a location server.

[0514] As a sub-embodiment of the above embodiment, the second measurement information includes that the difference between the reception timing of the received frame and the transmission timing of the transmitted frame is the gNB Rx-Tx time difference.

[0515] As a sub-embodiment of the above embodiment, the receiving timing of the transmission frame is T gNB-TX .

[0516] As a sub-embodiment of the above embodiment, the sending frame is closest to the receiving frame in time.

[0517] As a sub-embodiment of the above embodiment, the receiving timing of the received frame is T gNB-RX .

[0518] As a sub-embodiment of the above embodiment, the received frame includes at least one path of the first wireless signal.

[0519] As a sub-embodiment of the above embodiment, the received frame includes a first path of the first wireless signal.

[0520] As a sub-embodiment of the above embodiment, the received frame includes the path with the strongest reception quality of the first wireless signal.

[0521] As a sub-embodiment of the above embodiment, the received frame includes a path of the first wireless signal that is reciprocal to the target path.

[0522] As a sub-embodiment of the above embodiment, the received frame is an uplink frame, and the sent frame is a downlink frame.

[0523] As a sub-embodiment of the above embodiment, the received frame is a downlink frame, and the sent frame is an uplink frame.

[0524] As a sub-embodiment of the above embodiment, the receiving frame is a sub-link frame, and the sending frame is a sub-link frame.

[0525] As a sub-embodiment of the above embodiment, the second measurement information includes the SRPP of the first wireless signal.

[0526] As a sub-embodiment of the above embodiment, the second measurement information includes the RSRPP of the first path of the first wireless signal.

[0527] As a sub-embodiment of the above embodiment, the second measurement information includes an RSRPP of the first wireless signal on a path that is reciprocal with the target path.

[0528] As an embodiment, the dotted box F5.2 does not exist.

[0529] As an embodiment, the receiver of the first measurement information is a location server.

[0530] As an embodiment, the receiver of the first measurement information is a RAN node.

[0531] As an embodiment, the first measurement information is a measurement report.

[0532] As an embodiment, the first measurement information is generated in the RRC sublayer.

[0533] As an embodiment, the above method reduces the impact on the protocol.

[0534] As an embodiment, the above method can support more flexible reporting.

[0535] As an embodiment, the above method is more reliable.

[0536] As an embodiment, the above method saves resources of the physical layer control channel.

[0537] As an embodiment, the first measurement information is an RRC message.

[0538] As an embodiment, the first measurement information includes at least one RRC IE (Information Element).

[0539] As an embodiment, the first measurement information includes at least one RRC field.

[0540] As an embodiment, the first measurement information is transmitted via a PUSCH (Physical uplink shared channel).

[0541] As an embodiment, the first measurement information belongs to a DCCH (Dedicated Control Channel) message.

[0542] As an embodiment, the first measurement information is transmitted via SRB1 (Signalling Radio Bearer 1).

[0543] As an embodiment, the first measurement information is transmitted via SRB3 (Signalling Radio Bearer 3).

[0544] As an embodiment, the first measurement information belongs to a MeasurementReport message.

[0545] As an embodiment, the first measurement information belongs to an RRC IE, and the RRC IE is for ISAC.

[0546] As an embodiment, the first measurement information belongs to an RRC IE, and the RRC IE is for positioning.

[0547] As an embodiment, the first measurement information belongs to an RRC IE, and the RRC IE is for perception.

[0548] As an embodiment, the first measurement information belongs to a UEAssistanceInformation message.

[0549] As an embodiment, the first measurement information is physical layer signaling.

[0550] As an embodiment, the above method is helpful in reducing latency.

[0551] As an embodiment, the above method is beneficial to improving data reliability.

[0552] As an embodiment, the first measurement information is UCI (Uplink Control Information, uplink control information).

[0553] As an embodiment, the first measurement information is transmitted via PUCCH (Physical Uplink Control Channel).

[0554] As an embodiment, the first measurement information is transmitted via PUSCH.

[0555] As an embodiment, the first measurement information is MAC (Medium Access Control) CE (Control Element).

[0556] As an embodiment, the above method reduces latency while minimizing the impact on the protocol.

[0557] As an embodiment, the above method reduces latency while saving resources of the physical layer control channel.

[0558] As an embodiment, the first measurement information is generated at the LPP layer.

[0559] As an embodiment, the first measurement information is an LPP message.

[0560] As an embodiment, the first measurement information is transmitted via SRB2.

[0561] As an embodiment, the first measurement information belongs to an RRC container.

[0562] As an embodiment, the first measurement information belongs to a ULInformationTransfer message.

[0563] As a sub-embodiment of the above embodiment, an LPP PDU includes the first measurement information.

[0564] As a sub-embodiment of the above embodiment, an LPP PDU in a payload container of a UL NAS Transport message includes the first measurement information.

[0565] As a sub-embodiment of the above embodiment, an RRC UL Information Transfer message includes the first measurement information.

[0566] As an embodiment, the first measurement information is terminated at the fourth node.

[0567] As an embodiment, the fourth node receives an RRC message, where the RRC message includes the first measurement information.

[0568] As an embodiment, the fourth node receives an LPP PDU, where the LPP PDU includes the first measurement information.

[0569] As an embodiment, the first node sends an RRC message, wherein the first measurement information is generated in the RRC sublayer, and the one RRC message includes the first measurement information; the fourth node receives the one RRC message.

[0570] As an embodiment, the first node sends an RRC message, wherein the first measurement information is generated at the LPP layer, the first RRC message includes an LPP PDU, and the LPP PDU includes the first measurement information; an NG-RAN node receives the RRC message and forwards the LPP PDU to an AMF via a UL NAS Transport message; the AMF receives the UL NAS Transport message and forwards the LPP PDU to the fourth node via a Namf_Communication_N1MessageNotify.

[0571] As an embodiment, the difference between the reception timing of the reference signal and the transmission timing of the first wireless signal is an Rx-Tx time difference.

[0572] As an embodiment, the difference between the reception timing of the reference signal and the transmission timing of the first wireless signal is one TUE-RX-TUE-TX.

[0573] As an embodiment, the reception timing of the reference signal refers to: the reception timing of only one path of the reference signal.

[0574] As a sub-embodiment of the above embodiment, the only one path refers to: the last path.

[0575] As a sub-embodiment of the above embodiment, the above method is helpful in determining the delay information of the last path.

[0576] As a sub-embodiment of the above embodiment, the only one path refers to: the first path.

[0577] As a sub-embodiment of the above embodiment, the above method is conducive to determining the delay information of the first path.

[0578] As a sub-embodiment of the above embodiment, the only one path refers to: the target path.

[0579] As a sub-embodiment of the above embodiment, the above method is helpful in determining the delay information of the target path.

[0580] As an embodiment, the reception timing of the reference signal refers to: the reception timing of at least one path of the reference signal.

[0581] As a sub-embodiment of the above embodiment, the first measurement information includes a difference between a reception timing of at least one path of the reference signal and a transmission timing of the first wireless signal.

[0582] As an embodiment, the first measurement information includes the difference between the reception timing of multiple paths of the reference signal and the transmission timing of the first wireless signal.

[0583] As a sub-embodiment of the above embodiment, the multiple paths of the reference signal refer to: all paths of the reference signal.

[0584] As a sub-embodiment of the above embodiment, the multiple paths of the reference signal refer to: the first path and the at most K1 paths.

[0585] As a sub-embodiment of the above embodiment, the multiple paths of the reference signal refer to: the paths in the first candidate path set; wherein the reception quality measured on the first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameters; the first candidate path set includes multiple paths, and the target path is one of the multiple paths.

[0586] As an embodiment, the first measurement information includes a difference between a reception timing of only one path of the reference signal and a transmission timing of the first wireless signal.

[0587] As an embodiment, the receiving timing of a path refers to the receiving time of the path.

[0588] As an embodiment, the reception timing of a path refers to a given frame timing of the path.

[0589] As a sub-embodiment of the above embodiment, the given frame is a downlink frame.

[0590] As a sub-embodiment of the above embodiment, the given frame is of a secondary link.

[0591] As a sub-embodiment of the above embodiment, the given frame is of an IAB link.

[0592] As a sub-embodiment of the above embodiment, the reference signal is used to determine the start of the given frame.

[0593] As a sub-embodiment of the above embodiment, multiple warps of the reference signal are used to determine the start of the given frame.

[0594] As a sub-embodiment of the above embodiment, the first path is used to determine the start of the given frame.

[0595] As a sub-embodiment of the above embodiment, the target stripe diameter is used to determine the start of the given frame.

[0596] As a sub-embodiment of the above embodiment, the given frame timing of the path refers to the reception timing of a given frame to which the path belongs.

[0597] As a sub-embodiment of the above embodiment, the given frame timing of the one path refers to the reception timing of a given frame defined by the one path.

[0598] As a sub-embodiment of the above embodiment, the given frame timing of the one path refers to a receiving timing of receiving a given frame of the one path.

[0599] As a sub-embodiment of the above embodiment, the given frame timing of the one path refers to the timing of the one path in a given frame.

[0600] As an embodiment, the given frame is an NR frame.

[0601] As an embodiment, the given frame is a frame of a 6G system.

[0602] As an embodiment, the given frame is a frame of the ISAC system.

[0603] As an embodiment, the given frame refers to a superframe.

[0604] As an embodiment, the given frame refers to a radio frame.

[0605] As an embodiment, the given frame refers to a system frame.

[0606] As an embodiment, the given frame refers to a half frame.

[0607] As an embodiment, the given frame refers to a subframe.

[0608] As an embodiment, the given frame refers to a time slot.

[0609] As an embodiment, the given frame refers to a symbol.

[0610] As an embodiment, the given frame includes a plurality of time slots.

[0611] As an embodiment, the given frame includes a plurality of symbols.

[0612] Typically, the reception timing of the reference signal refers to the reception timing of the downlink subframe defined by the first path.

[0613] Typically, the reception timing of the reference signal refers to the reception timing of the downlink subframe defined by the target path.

[0614] As an embodiment, after the reference signals are measured respectively using the multiple spatial filtering parameters, only the first wireless signal is sent.

[0615] As an embodiment, after the reference signals are measured respectively using the multiple spatial filtering parameters, Q1 wireless signals are sent; wherein, Q2 spatial filtering parameters are used to send the Q1 wireless signals; wherein, the Q2 spatial filtering parameters are one of the multiple spatial filtering parameters, and the reception quality measured respectively on the Q3 strip paths using the Q2 spatial filtering parameters is used to determine the Q1 spatial filtering parameters; the first wireless signal is one of the Q1 wireless signals; the first spatial filtering parameter is one of the Q2 spatial filtering parameters; the target path is one of the Q3 strip paths.

[0616] As a sub-embodiment of the above embodiment, the Q1 wireless signals are directed to Q1 targets.

[0617] As a sub-embodiment of the above embodiment, any two wireless signals among the Q1 wireless signals use different spatial filtering parameters; and Q2 is Q1.

[0618] As a sub-embodiment of the above embodiment, there are two wireless signals among the Q1 wireless signals, and the two wireless signals use the same spatial filtering parameters; and Q2 is smaller than Q1.

[0619] As a sub-embodiment of the above embodiment, Q1, Q2 and Q3 are equal.

[0620] As a sub-embodiment of the above embodiment, Q1 is an integer greater than 1.

[0621] As a sub-embodiment of the above embodiment, Q1 is 1.

[0622] As a sub-embodiment of the above embodiment, Q1 is fixed.

[0623] As a sub-embodiment of the above embodiment, Q1 depends on the configuration.

[0624] As a sub-embodiment of the above embodiment, Q1 is an integer not greater than Q2.

[0625] As a sub-embodiment of the above embodiment, Q1 is an integer not greater than Q3.

[0626] As a sub-embodiment of the above embodiment, Q2 is Q1.

[0627] As a sub-embodiment of the above embodiment, Q2 is an integer not greater than Q3.

[0628] As a sub-embodiment of the above embodiment, Q2 is an integer not greater than Q1.

[0629] As an embodiment, the first measurement information includes the difference between the reception timing of the reference signal and the transmission timing of the Q1 wireless signals.

[0630] As an embodiment, the first measurement information includes a difference between a reception timing of the target path and a reception timing of the first path.

[0631] As a sub-embodiment of the above embodiment, the first measurement information includes a difference between a reception timing of each path in the first candidate path set and a reception timing of the first path.

[0632] As a sub-embodiment of the above embodiment, the first measurement information includes a difference between a reception timing of each path in the Q3 paths and a reception timing of the first path.

[0633] As an embodiment, the first measurement information does not indicate the reception quality of the target path.

[0634] As an embodiment, the first measurement information indicates the reception quality of the target path.

[0635] As a sub-embodiment of the above embodiment, the first measurement information includes the RSRP of the target path.

[0636] As a sub-embodiment of the above embodiment, the first measurement information includes the RSRPP of the target path.

[0637] As a sub-embodiment of the above embodiment, the first measurement information includes the SINR of the target path.

[0638] As a sub-embodiment of the above embodiment, the first measurement information includes the SNR of the target path.

[0639] As a sub-embodiment of the above embodiment, the first measurement information includes the MSE of the target path.

[0640] As an embodiment, the first measurement information does not indicate the transmission power of the first wireless signal.

[0641] As an embodiment, the first measurement information indicates the transmission power of the first wireless signal.

[0642] As a sub-embodiment of the above embodiment, the first measurement information includes parameters of the transmission power of the first wireless signal.

[0643] As a sub-embodiment of the above embodiment, the first measurement information includes an index of the transmission power of the first wireless signal.

[0644] As an embodiment, the first measurement information does not indicate that the first wireless signal is repeated.

[0645] As an embodiment, the first measurement information indicates that the first wireless signal is repeated.

[0646] As a sub-embodiment of the above embodiment, the first measurement information indicates the number of repetitions of the first wireless signal.

[0647] Example 6

[0648] Example 6 illustrates a schematic diagram of a target path after the first path is measured using multiple spatial filtering parameters according to an embodiment of the present application, as shown in FIG6 .

[0649] In embodiment 6, the target path is after the first path measured using the multiple spatial filtering parameters.

[0650] As an embodiment, the spatial filtering parameter used to measure the target path is not the first spatial filtering parameter.

[0651] As an embodiment, the spatial filtering parameter used to measure the target path is the first spatial filtering parameter.

[0652] As an embodiment, reception quality measured on the first path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0653] As an embodiment, the target path is not the first path.

[0654] As an embodiment, the time interval between the target path and the first path satisfies a threshold.

[0655] As an embodiment, the threshold is configurable.

[0656] As an embodiment, the threshold is preconfigured.

[0657] As an embodiment, the threshold is configured at the LPP layer.

[0658] As an embodiment, the threshold is configured in the RRC sublayer.

[0659] As an embodiment, the time interval between the target path and the first path refers to the time delay between the target path and the first path.

[0660] As an embodiment, the time interval between the target path and the first path refers to the time interval between measuring the first path and measuring the target path.

[0661] As an embodiment, the time interval between the target path and the first path refers to the time interval between the start time of receiving the target path and the start time of receiving the first path.

[0662] As an embodiment, the time interval between the target path and the first path refers to the time interval between a reception cutoff time of the target path and a reception cutoff time of the first path.

[0663] Example 7

[0664] Embodiment 7 illustrates a schematic diagram of using a plurality of spatial filtering parameters to determine a first spatial filtering parameter using reception quality measured on a first candidate path set according to an embodiment of the present application, as shown in FIG7 .

[0665] In embodiment 7, the reception quality measured on a first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameters; the first candidate path set includes multiple warps, and the target path is one of the multiple warps.

[0666] As an embodiment, the first candidate path set includes at least one path.

[0667] As an embodiment, the first candidate path set includes the first warp.

[0668] As an embodiment, the first candidate path set does not include the first warp.

[0669] As an embodiment, the paths in the first candidate path set are correlated.

[0670] As an embodiment, the meaning that the paths in the first candidate path set are correlated includes: the delay between any two paths in the first candidate path set is less than a given delay threshold.

[0671] As an embodiment, the meaning that the paths in the first candidate path set are correlated includes: the difference in reception quality between any two paths in the first candidate path set is less than a given reception quality threshold.

[0672] As an embodiment, the correlation of the paths in the first candidate path set means that the delay between any two paths in the first candidate path set is less than a given delay threshold, and the difference in reception quality between any two paths in the first candidate path set is less than a given reception quality threshold.

[0673] As an embodiment, the first candidate path set is used to determine the same target.

[0674] As an embodiment, the paths in the first candidate path set all pass through the same target.

[0675] As an embodiment, the paths in the first candidate path set are reflected by the target.

[0676] As an embodiment, the first node determines that the first candidate path set is directed to the same target based on correlation between paths in the first candidate path set.

[0677] As an embodiment, the target is passive.

[0678] As an embodiment, the target reflects the reference signal.

[0679] As an embodiment, the type of the target is preconfigured.

[0680] As an embodiment, the type of the target is predefined.

[0681] As an embodiment, the size of the target is preconfigured.

[0682] As an embodiment, the size of the target is predefined.

[0683] As an embodiment, the target is a vehicle.

[0684] As an embodiment, the target is an unmanned aerial vehicle (UAV).

[0685] As an embodiment, the target is a human.

[0686] As an embodiment, the target is an automated guided vehicle.

[0687] As an embodiment, the target is a dangerous object.

[0688] As an embodiment, the target path follows the first path measured using the multiple spatial filtering parameters; the reception quality measured on the first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameters; the first candidate path set includes multiple paths, and the target path is one of the multiple paths.

[0689] As an embodiment, the target path is any one of the multiple paths.

[0690] As an embodiment, the target path is the earliest path among the multiple paths.

[0691] As an embodiment, the earliest path among the multiple paths refers to: a path among the multiple paths that is detected earliest.

[0692] As an embodiment, the earliest path among the multiple paths refers to: the path among the multiple paths that is detected first in time.

[0693] Example 8

[0694] Embodiment 8 illustrates a schematic diagram of ensuring that the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold according to an embodiment of the present application, as shown in FIG8 .

[0695] In Embodiment 8, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

[0696] As an embodiment, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold value, which means that the reception quality measured on only the target path using the multiple spatial filtering parameters is not lower than the specific threshold value.

[0697] As an embodiment, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold value, which means that the reception quality measured on only the target path outside the first path using the multiple spatial filtering parameters is not lower than the specific threshold value.

[0698] As an embodiment, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold value, which means that: the reception quality measured on multiple paths using the multiple spatial filtering parameters is not lower than the specific threshold value; and the target path is one of the multiple paths.

[0699] As a sub-embodiment of the above embodiment, the target path is any one of the multiple paths.

[0700] As a sub-embodiment of the above embodiment, the target path is a path with the highest reception quality among the multiple paths.

[0701] As an embodiment, before sending the first wireless signal, the first spatial filtering parameter is determined.

[0702] As an embodiment, after respectively measuring reference signals using the multiple spatial filtering parameters, the first spatial filtering parameter is determined.

[0703] As an embodiment, the first spatial filtering parameter is determined as a response of measuring a reference signal respectively using the multiple spatial filtering parameters.

[0704] As an embodiment, determining the first spatial filtering parameter depends on whether the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

[0705] As an embodiment, the reception quality measured on the target path using the multiple spatial filtering parameters is not lower than a specific threshold and is used to determine the first spatial filtering parameter.

[0706] As an embodiment, when the reception quality measured on the target path using at least the first spatial filtering parameter is not lower than a specific threshold, the first spatial filtering parameter is determined.

[0707] As an embodiment, the first spatial filtering parameter is determined only when the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

[0708] As an embodiment, the reception quality measured on the target path using the multiple spatial filtering parameters is not lower than a specific threshold, which triggers the determination of the first spatial filtering parameter.

[0709] As an embodiment, the sending of the first wireless signal is triggered when the reception quality measured on the target path using the multiple spatial filtering parameters is not lower than a specific threshold.

[0710] As an embodiment, the specific threshold is configurable.

[0711] As an embodiment, the specific threshold is preconfigured.

[0712] As an embodiment, the specific threshold is configured by the second node.

[0713] As an embodiment, the specific threshold is configured by the fourth node.

[0714] As an embodiment, the specific threshold is configured at the LPP layer.

[0715] As an embodiment, the specific threshold is configured in the RRC sublayer.

[0716] As an embodiment, the not lower than is higher than.

[0717] As an embodiment, the not less than is higher than or equal to.

[0718] As an embodiment, the specific threshold is dedicated to a specific type of target.

[0719] As an embodiment, it is beneficial to detect and / or track different types of targets.

[0720] As an embodiment, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold and the reception quality measured on the target path using the first spatial filtering parameter is not higher than a given threshold.

[0721] As an embodiment, the given threshold is configured by the second node.

[0722] As an embodiment, the given threshold is configured by the fourth node.

[0723] As an embodiment, the given threshold is configured at the LPP layer.

[0724] As an embodiment, the given threshold is configured in the RRC sublayer.

[0725] As an embodiment, the not higher than is lower than.

[0726] As an embodiment, the not higher than is lower than or equal to.

[0727] As an embodiment, the specific threshold and the given threshold are dedicated to a specific type of target.

[0728] As an embodiment, the above method avoids perception errors.

[0729] As an embodiment, the reception quality measured on the first candidate path set using the first spatial filtering parameter is not lower than the specific threshold; the reception quality measured on the first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter; the first candidate path set includes multiple paths, and the target path is one of the multiple paths.

[0730] As a sub-embodiment of the above embodiment, the reception quality measured on the first candidate path set using the first spatial filtering parameter is not lower than the specific threshold includes the reception quality measured on the target path using the first spatial filtering parameter is not lower than the specific threshold.

[0731] As a sub-embodiment of the above embodiment, the reception quality measured on the first candidate path set refers to: the reception quality measured on any path in the first candidate path set.

[0732] As a sub-embodiment of the above embodiment, the reception quality measured on the first candidate path set refers to: an average value of the reception quality measured on all paths in the first candidate path set.

[0733] As a sub-embodiment of the above embodiment, the reception quality measured on the first candidate path set refers to: a weighted average of the reception qualities measured on all paths in the first candidate path set.

[0734] As a sub-embodiment of the above embodiment, the reception quality measured on the first candidate path set refers to: the reception quality measured on each path in the first candidate path set.

[0735] Example 9

[0736] Embodiment 9 illustrates a schematic diagram of a reference signal occupying multiple multi-carrier symbols in the time domain according to an embodiment of the present application, as shown in FIG9 .

[0737] In embodiment 9, the reference signal occupies multiple multi-carrier symbols in the time domain; each of the multiple spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

[0738] As an embodiment, the reference signal occupying multiple multi-carrier symbols in the time domain means that the first node assumes that the reference signal is sent on the multiple multi-carrier symbols.

[0739] As an embodiment, the reference signal occupying multiple multi-carrier symbols in the time domain means that the second node sends the reference signal on the multiple multi-carrier symbols.

[0740] As an embodiment, the reference signal occupying multiple multi-carrier symbols in the time domain means that the multiple multi-carrier symbols are configured for the reference signal.

[0741] As an embodiment, the reference signal occupying multiple multi-carrier symbols in the time domain means that the multiple multi-carrier symbols carry the reference signal.

[0742] As an embodiment, the reference signal occupies multiple multi-carrier symbols in the time domain, which means that the reception timing of the reference signal occupies the multiple multi-carrier symbols in the time domain.

[0743] As an embodiment, the reference signal occupying multiple multi-carrier symbols in the time domain means that each period of the reference signal in the time domain occupies multiple multi-carrier symbols.

[0744] As an embodiment, the multi-carrier symbols are used in a NR system.

[0745] As an embodiment, the multi-carrier symbols are used in a 6G system.

[0746] As an embodiment, the multi-carrier symbols are used in a positioning system.

[0747] As an embodiment, the multi-carrier symbols are used in a sensing system.

[0748] As an embodiment, the multi-carrier symbols are used in an ISAC system.

[0749] As an embodiment, the multi-carrier symbol is an FMCW symbol.

[0750] As an embodiment, the multi-carrier symbol is an OTFS symbol.

[0751] As an embodiment, the multi-carrier symbol is an OFDM symbol.

[0752] As an embodiment, the multi-carrier symbol is a CP-OFDM symbol.

[0753] As an embodiment, the multi-carrier symbol is a DFT-S-OFDM symbol.

[0754] As an embodiment, the multi-carrier symbol is an OFDMA symbol.

[0755] As an embodiment, the multiple multi-carrier symbols belong to the same frame.

[0756] As an embodiment, the multiple multi-carrier symbols belong to the same half-frame.

[0757] As an embodiment, the multiple multi-carrier symbols belong to the same subframe.

[0758] As an embodiment, the index of the first multi-carrier symbol in the plurality of multi-carrier symbols is preconfigured.

[0759] As an embodiment, the index of the first multi-carrier symbol in the plurality of multi-carrier symbols depends on the sub-carrier spacing.

[0760] As an embodiment, the reference signal occupies multi-carrier symbols that are continuous in the time domain.

[0761] As an embodiment, the reference signal occupies non-continuous multi-carrier symbols in the time domain.

[0762] As an embodiment, the number of multi-carrier symbols occupied by the reference signal is configurable.

[0763] As an embodiment, the number of multi-carrier symbols occupied by the reference signal is preconfigured.

[0764] As an embodiment, the number of multi-carrier symbols occupied by the reference signal depends on the subcarrier spacing.

[0765] As an embodiment, the number of the at least one multi-carrier symbol does not exceed the number of multi-carrier symbols occupied by the reference signal in the time domain.

[0766] As an embodiment, the number of the at least one multi-carrier symbol is smaller than the number of multi-carrier symbols occupied by the reference signal in the time domain.

[0767] As an embodiment, the reference signal is repeated on the multiple multi-carrier symbols.

[0768] As a sub-embodiment of the above embodiment, the number of times the reference signal is repeated on the multiple multi-carrier symbols is fixed.

[0769] As a sub-embodiment of the above embodiment, the number of times the reference signal is repeated on the multiple multi-carrier symbols is preconfigured.

[0770] As a sub-embodiment of the above embodiment, the number of times the reference signal is repeated on the multiple multi-carrier symbols is configured at the LPP layer.

[0771] As a sub-embodiment of the above embodiment, the number of times the reference signal is repeated on the multiple multi-carrier symbols is configured in the RRC sublayer.

[0772] As an embodiment, each of the plurality of spatial filtering parameters is used to receive the reference signal on the plurality of multi-carrier symbols.

[0773] As a sub-embodiment of the above embodiment, each of the plurality of spatial filtering parameters is used to receive the reference signal on each of the plurality of multi-carrier symbols.

[0774] As a sub-embodiment of the above embodiment, the above method is conducive to timely detection of targets.

[0775] As a sub-embodiment of the above embodiment, the above method avoids missed detection.

[0776] As an embodiment, each of the plurality of spatial filter parameters is used to receive the reference signal on only one multi-carrier symbol.

[0777] As a sub-embodiment of the above embodiment, the above method is beneficial to energy saving.

[0778] As a sub-embodiment of the above embodiment, the above method is advantageously implemented.

[0779] As a sub-embodiment of the above embodiment, the above method reduces the impact on the first node.

[0780] As a sub-embodiment of the above embodiment, the above method reduces interference.

[0781] As a sub-embodiment of the above embodiment, the reference signal is received in a beam scanning manner using the multiple spatial filtering parameters.

[0782] As an embodiment, each of the plurality of spatial filter parameters is used to receive the reference signal on more than one multi-carrier symbol.

[0783] As an embodiment, each of the plurality of spatial filtering parameters is used to receive the reference signal on one or more than one multi-carrier symbol.

[0784] As an embodiment, each of the multiple spatial filtering parameters is used to receive the reference signal on M1 multi-carrier symbols; the M1 is configurable and is a positive integer.

[0785] As an embodiment, on each of the multiple carrier symbols, only one of the multiple spatial filter parameters is adopted.

[0786] As an embodiment, on each of the multi-carrier symbols in the plurality of multi-carrier symbols, more than one of the plurality of spatial filter parameters is adopted.

[0787] As an embodiment, on each of the multiple multi-carrier symbols, N1 spatial filtering parameters among the multiple spatial filtering parameters are adopted; the N1 is configurable and is a positive integer.

[0788] Example 10

[0789] Example 10 illustrates a schematic diagram of reference signal transmission according to an embodiment of the present application, as shown in Figure 10. In Figure 10, the third node transmits a reference signal, and the first node receives the reference signal; dashed ellipses 1001 and 1002 correspond to two different spatial filtering parameters; P1 and P2 are paths of the reference signal; and the solid box represents a target.

[0790] In Example 10, at least spatial filtering parameters 1001 and spatial filtering parameters 1002 are used to measure the reference signal respectively; P1 is the first path of the reference signal measured using the spatial filtering parameters 1002; and P2 is the target path of the reference signal measured using the spatial filtering parameters 1001.

[0791] As an embodiment, this embodiment does not limit the number of spatial filtering parameters used to measure the reference signal.

[0792] As an embodiment, this embodiment does not limit the number of measured paths of the reference signal.

[0793] As an embodiment, this embodiment does not limit the number of targets that the reference signal passes through.

[0794] Example 11

[0795] Embodiment 11 illustrates a schematic diagram of the relationship between spatial filtering parameters and multi-carrier symbols occupied by a reference signal station according to an embodiment of the present application, as shown in FIG11. In FIG11, a thick solid box 1100 represents a frame; a box 1103 and a box 1104 filled with diagonal lines correspond to two different time domain resources for receiving reference signals; dotted ellipses 1101 and 1102 correspond to two different spatial filtering parameters; the box 1103 filled with diagonal lines represents the time domain resource for receiving the reference signal using the spatial filtering parameters 1101; and the box 1104 filled with diagonal lines represents the time domain resource for receiving the reference signal using the spatial filtering parameters 1102.

[0796] In embodiment 11, the reference signal occupies multiple multi-carrier symbols of the frame in the time domain; each of the multiple spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

[0797] As an embodiment, in the time domain resources corresponding to the oblique line filled box 1103, the reference signal is received using the spatial filtering parameters 1101; in the time domain resources corresponding to the oblique line filled box 1104, the reference signal is received using the spatial filtering parameters 1102.

[0798] As an embodiment, each box filled with oblique lines represents a multi-carrier symbol; and the time domain resource for receiving a reference signal using each of the multiple spatial filtering parameters is only one multi-carrier symbol.

[0799] As an embodiment, each box filled with slashes represents more than one multi-carrier symbol; and the time domain resource for receiving the reference signal using each of the multiple spatial filtering parameters is more than one multi-carrier symbol.

[0800] As an embodiment, each box filled with oblique lines represents more than one multi-carrier symbol; and the time domain resources for receiving the reference signal using each of the multiple spatial filtering parameters are the M1 multi-carrier symbols.

[0801] As an embodiment, this embodiment does not limit the multiple multi-carrier symbols to belong to a downlink frame.

[0802] As an embodiment, this embodiment does not limit the number of the multiple multi-carrier symbols.

[0803] As an embodiment, this embodiment does not limit the number of the at least one multi-carrier symbol.

[0804] As an embodiment, this embodiment does not limit the positions of the multiple multi-carrier symbols in the downlink frame.

[0805] Example 12

[0806] Embodiment 12 illustrates a structural block diagram of a processing device in a first node according to an embodiment of the present application, as shown in FIG12. In FIG12, the processing device 1200 in the first node includes a first receiver 1201 and a first transmitter 1202.

[0807] The first receiver 1201 uses multiple spatial filtering parameters to measure reference signals respectively;

[0808] A first transmitter 1202 transmits a first wireless signal; wherein a first spatial filter parameter is used to transmit the first wireless signal;

[0809] In Embodiment 12, the first spatial filtering parameter is one of the multiple spatial filtering parameters, and reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

[0810] As an embodiment, the target path is after the first path measured using the multiple spatial filtering parameters.

[0811] As an embodiment, the reception quality measured on a first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameters; the first candidate path set includes multiple warps, and the target path is one of the multiple warps.

[0812] As an embodiment, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

[0813] As an embodiment, the reference signal occupies multiple multi-carrier symbols in the time domain; each of the multiple spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

[0814] As an embodiment, the first transmitter sends first measurement information; wherein the first measurement information includes the difference between the reception timing of the reference signal and the transmission timing of the first wireless signal.

[0815] As an embodiment, the first receiver 1201 includes at least one of the antenna 452 or the receiver 454 or the multi-antenna receiving processor 458 or the receiving processor 456 or the controller / processor 459 or the memory 460 or the data source 467 in FIG. 4 of the present application.

[0816] As an embodiment, the first receiver 1201 includes at least the antenna 452 and the receiver 454 in FIG. 4 of the present application.

[0817] As an embodiment, the first transmitter 1202 includes at least one of the antenna 452 or transmitter 454 or multi-antenna transmission processor 457 or transmission processor 468 or controller / processor 459 or memory 460 or data source 467 in FIG. 4 of the present application.

[0818] As an embodiment, the first transmitter 1202 includes at least the antenna 452 and the transmitter 454 in FIG. 4 of the present application.

[0819] Example 13

[0820] Embodiment 13 illustrates a structural block diagram of a processing device in a second node according to an embodiment of the present application, as shown in FIG13. In FIG13, the processing device 1300 in the second node includes a second transmitter 1301 and a second receiver 1302.

[0821] A second receiver 1302 receives a first wireless signal, wherein the first spatial filter parameter is used by a sender of the first wireless signal to send the first wireless signal;

[0822] In Example 13, the sender of the first wireless signal uses multiple spatial filtering parameters to measure the reference signal separately; the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used by the sender of the first wireless signal to determine the first spatial filtering parameter.

[0823] As an embodiment, the target path is after the first path measured using the multiple spatial filtering parameters.

[0824] As an embodiment, the reception quality measured on a first candidate path set using the multiple spatial filtering parameters is used to determine the first spatial filtering parameters; the first candidate path set includes multiple warps, and the target path is one of the multiple warps.

[0825] As an embodiment, the reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

[0826] As an embodiment, the reference signal occupies multiple multi-carrier symbols in the time domain; each of the multiple spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

[0827] As an embodiment, the second receiver 1302 receives first measurement information; wherein the first measurement information includes the difference between the reception timing of the reference signal and the transmission timing of the first wireless signal.

[0828] As an embodiment, the second transmitter 1301 sends the reference signal.

[0829] As an embodiment, the second transmitter 1301 sends second measurement information; the second measurement information includes the difference between the receiving timing of the received frame and the sending timing of the sent frame; the received frame includes the first wireless signal.

[0830] As an embodiment, the second transmitter 1301 includes at least one of the antenna 420 or the transmitter 418 or the multi-antenna transmission processor 471 or the transmission processor 416 or the controller / processor 475 or the memory 476 in FIG. 4 of the present application.

[0831] As an embodiment, the second transmitter 1301 includes at least the antenna 420 and the transmitter 418 in FIG. 4 of the present application.

[0832] As an embodiment, the second receiver 1302 includes at least one of the antenna 420 or the receiver 418 or the multi-antenna receiving processor 472 or the receiving processor 470 or the controller / processor 475 or the memory 476 in FIG. 4 of the present application.

[0833] As an embodiment, the second receiver 1302 includes at least the antenna 420 and the receiver 418 in FIG. 4 of the present application.

[0834] Those skilled in the art will appreciate that all or part of the steps in the above method can be completed by instructing relevant hardware through a program, and the program can be stored in a computer-readable storage medium, such as a read-only memory, a hard disk or an optical disk. Optionally, all or part of the steps in the above embodiment can also be implemented using one or more integrated circuits. Accordingly, each module unit in the above embodiment can be implemented in the form of hardware or in the form of a software functional module. This application is not limited to any specific form of combination of software and hardware. The user equipment, terminal and UE in this application include but are not limited to drones, communication modules on drones, remote-controlled aircraft, aircraft, small aircraft, mobile phones, tablet computers, notebooks, vehicle-mounted communication equipment, wireless sensors, internet cards, Internet of Things terminals, RFID terminals, NB-IOT terminals, MTC (Machine Type Communication) terminals, eMTC (enhanced MTC) terminals, data cards, internet cards, vehicle-mounted communication equipment, low-cost mobile phones, low-cost tablet computers and other wireless communication devices. The base stations or system devices in this application include but are not limited to macrocell base stations, microcell base stations, home base stations, relay base stations, gNB (NR node B) NR node B, TRP (Transmitter Receiver Point) and other wireless communication devices.

[0835] The above description is only a preferred embodiment of the present application and is not intended to limit the scope of protection of the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application shall be included in the scope of protection of the present application.

Claims

1. A first node used for wireless communication, characterized in that include: A first receiver uses a plurality of spatial filtering parameters to measure reference signals respectively; A first transmitter is configured to transmit a first wireless signal, wherein a first spatial filter parameter is used to transmit the first wireless signal; The first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

2. The first node according to claim 1, wherein: The target path follows the first path measured using the multiple spatial filtering parameters.

3. The first node according to claim 1 or 2, characterized in that Reception qualities measured on a first candidate path set using the multiple spatial filtering parameters are used to determine the first spatial filtering parameters; the first candidate path set includes multiple warps, and the target path is one of the multiple warps.

4. The first node according to any one of claims 1 to 3, characterized in that: The reception quality measured on the target path using the first spatial filtering parameter is not lower than a specific threshold.

5. The first node according to any one of claims 1 to 4, characterized in that: The reference signal occupies a plurality of multi-carrier symbols in the time domain; each of the plurality of spatial filtering parameters is used to receive the reference signal on at least one multi-carrier symbol.

6. The first node according to any one of claims 1 to 5, characterized in that: include: The first transmitter sends first measurement information; The first measurement information includes a difference between a reception timing of the reference signal and a transmission timing of the first wireless signal.

7. A method in a first node for wireless communication, characterized in that include: Using multiple spatial filtering parameters to measure reference signals respectively; Sending a first wireless signal; wherein the first spatial filtering parameter is used to send the first wireless signal; The first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used to determine the first spatial filtering parameter.

8. A second node used for wireless communication, characterized in that include: a second receiver configured to receive a first wireless signal, wherein the first spatial filter parameter is used by a sender of the first wireless signal to send the first wireless signal; The sender of the first wireless signal uses multiple spatial filtering parameters to measure reference signals respectively; the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used by the sender of the first wireless signal to determine the first spatial filtering parameter.

9. A method in a second node for wireless communication, characterized in that include: Receiving a first wireless signal; wherein the first spatial filter parameter is used by a sender of the first wireless signal to send the first wireless signal; The sender of the first wireless signal uses multiple spatial filtering parameters to measure reference signals respectively; the first spatial filtering parameter is one of the multiple spatial filtering parameters, and the reception quality measured on the target path using the multiple spatial filtering parameters is used by the sender of the first wireless signal to determine the first spatial filtering parameter.

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