Data acquisition method, signal configuration method, device and equipment

Abstract

The invention discloses a data acquisition method, a signal configuration method, devices and equipment, and belongs to the technical field of communication, and the data acquisition method comprises the steps that first equipment sends a first signal to second equipment, and the first signal is used for sensing measurement; the first device receives a second signal sent by the second device, the second signal is used for cooperating with the first signal to carry out round-trip measurement, or the second signal is used for sensing measurement and cooperating with the first signal to carry out round-trip measurement; the first device determines first data based on the second signal, the first data being used for determining or suppressing a timing start point deviation between the first device and a second device, or the first data being used for determining or suppressing a timing start point deviation between the first device and the second device, or the first data being used for determining or suppressing a timing start point deviation between the first device and the second device; and to determine a perceived result.

Description

TECHNICAL FIELD

[0001] The present application belongs to the technical field of communication, and particularly relates to a data acquisition method, a signal configuration method, a device and equipment. BACKGROUND

[0002] In a sensing scenario, a transmitter and a receiver of a sensing signal generate a local oscillator signal and a clock signal from a frequency source in the respective device for transmission and reception of the sensing signal. There can be a difference between the clock signals of the transceiver, and the difference in the clock signals leads to a timing starting point deviation, thereby limiting the sensing performance. SUMMARY

[0003] Embodiments of the present application provide a data acquisition method, a signal configuration method, a device and equipment, which can solve the problem that a timing starting point deviation between transceivers of a sensing signal limits the sensing performance.

[0004] In a first aspect, a data acquisition method is provided, comprising:

[0005] A first device sends a first signal to a second device, the first signal being used for sensing measurement;

[0006] The first device receives a second signal sent by the second device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal;

[0007] The first device determines first data based on the second signal, the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing the timing starting point deviation between the first device and the second device, and further being used for determining a sensing result.

[0008] In a second aspect, a data acquisition method is provided, comprising:

[0009] A second device receives a first signal sent by a first device, the first signal being used for sensing measurement;

[0010] The second device determines second data based on the first signal, the second data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the second data being used for determining or suppressing the timing starting point deviation between the first device and the second device, and further being used for determining a sensing result;

[0011] The second device sends a second signal to the first device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal.

[0012] In a third aspect, a signal configuration method is provided, comprising:

[0013] The third device sends signal configuration information to at least one of the first device and the second device, the signal configuration information comprising at least one of:

[0014] signal configuration information of the first signal, signal configuration information of the second signal;

[0015] The first signal is used for sensing measurement, the second signal is used for round trip measurement in cooperation with the first signal, or the second signal is used for sensing measurement and round trip measurement in cooperation with the first signal.

[0016] In a fourth aspect, a data acquisition apparatus is provided, comprising:

[0017] The sending module is configured to send a first signal to the second device, the first signal being used for sensing measurement;

[0018] The receiving module is configured to receive a second signal sent by the second device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal;

[0019] The processing module is configured to determine first data based on the second signal, the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing the timing starting point deviation between the first device and the second device and further used for determining a sensing result.

[0020] In a fifth aspect, a data acquisition apparatus is provided, comprising:

[0021] The receiving module is configured to receive a first signal sent by the first device, the first signal being used for sensing measurement;

[0022] The processing module is configured to determine second data based on the first signal, the second data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the second data being used for determining or suppressing the timing starting point deviation between the first device and the second device and further used for determining a sensing result;

[0023] The sending module is configured to send a second signal to the first device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal.

[0024] In a sixth aspect, a signal configuration apparatus is provided, comprising:

[0025] The sending module is configured to send signal configuration information to at least one of the first device and the second device, the signal configuration information including at least one of the following:

[0026] signal configuration information of the first signal, and signal configuration information of the second signal.

[0027] The first signal is used for sensing measurement, the second signal is used for round trip measurement in cooperation with the first signal, or the second signal is used for sensing measurement and round trip measurement in cooperation with the first signal.

[0028] In a seventh aspect, a data acquisition apparatus is provided, which is configured to perform the steps of the data acquisition method on the first device side as provided in the embodiments of the present application.

[0029] In an eighth aspect, a data acquisition apparatus is provided, which is configured to perform the steps of the data acquisition method on the second device side as provided in the embodiments of the present application.

[0030] In a ninth aspect, a signal configuration apparatus is provided, which is configured to perform the steps of the signal configuration method as provided in the embodiments of the present application.

[0031] In a tenth aspect, a device is provided, which includes a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the data acquisition method on the first device side as provided in the embodiments of the present application.

[0032] In an eleventh aspect, a device is provided, which includes a processor and a communication interface, wherein the communication interface is configured to send a first signal to a second device, the first signal being used for sensing measurement; receive a second signal sent by the second device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal; and the processor is configured to determine first data based on the second signal, the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing the timing starting point deviation between the first device and the second device, and further being used for determining a sensing result.

[0033] In a twelfth aspect, a device is provided, which includes a processor and a memory, the memory storing programs or instructions executable on the processor, and the programs or instructions, when executed by the processor, implement the steps of the data acquisition method on the second device side as provided in the embodiments of the present application.

[0034] In a thirteenth aspect, a device is provided, including a processor and a communication interface, wherein the communication interface is configured to receive a first signal sent by a first device, the first signal being used for sensing measurement; the processor is configured to determine second data based on the first signal, the second data being used to determine or suppress a timing start point deviation between the first device and a second device, or the second data being used to determine or suppress a timing start point deviation between the first device and the second device, and is also configured to determine a sensing result; the communication interface is further configured to send a second signal to the first device, the second signal being used to perform round-trip measurement in conjunction with the first signal, or the second signal being used for sensing measurement and performing round-trip measurement in conjunction with the first signal.

[0035] In a fourteenth aspect, an apparatus is provided, comprising a processor and a memory, the memory storing a program or instructions executable on the processor, the program or instructions, when executed by the processor, implementing the steps of the signal configuration method provided in the embodiments of this application.

[0036] In a fifteenth aspect, a device is provided, including a processor and a communication interface, wherein the communication interface is configured to send signal configuration information to at least one of a first device and a second device, the signal configuration information including at least one of the following: signal configuration information of a first signal and signal configuration information of a second signal; wherein the first signal is used for sensing measurement, and the second signal is used to cooperate with the first signal to perform round-trip measurement, or the second signal is used for sensing measurement and to cooperate with the first signal to perform round-trip measurement.

[0037] In a sixteenth aspect, a readable storage medium is provided, on which a program or instructions are stored, which, when executed by a processor, implement the steps of a data acquisition method on a first device side as provided in the embodiments of this application, or implement the steps of a data acquisition method on a second device side as provided in the embodiments of this application, or implement the steps of a signal configuration method as provided in the embodiments of this application.

[0038] In a seventeenth aspect, a wireless communication system is provided, comprising: a first device and a second device, or comprising a first device, a second device and a third device, wherein the first device is configured to perform the steps of the data acquisition method on the first device side as provided in the embodiments of this application, the first device is configured to perform the steps of the data acquisition method on the second device side as provided in the embodiments of this application, and the third device is configured to perform the steps of the signal configuration method as provided in the embodiments of this application.

[0039] In an eighteenth aspect, a chip is provided, the chip including a processor and a communication interface, the communication interface being coupled to the processor, the processor being used to run programs or instructions to implement a data acquisition method on a first device side as provided in the embodiments of this application, to implement a data acquisition method on a second device side as provided in the embodiments of this application, or to implement a signal configuration method as provided in the embodiments of this application.

[0040] In a nineteenth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of a data acquisition method on a first device side as provided in the embodiments of this application, or the computer program / program product is executed by at least one processor to implement the steps of a data acquisition method on a second device side as provided in the embodiments of this application, or the computer program / program product is executed by at least one processor to implement the steps of a signal configuration method as provided in the embodiments of this application.

[0041] In this embodiment, a first device sends a first signal to a second device, the first signal being used for sensing measurement; the first device receives a second signal sent by the second device, the second signal being used to perform round-trip measurement in conjunction with the first signal, or the second signal being used for both sensing measurement and round-trip measurement in conjunction with the first signal; the first device determines first data based on the second signal, the first data being used to determine or suppress timing start point deviation between the first device and the second device, or the first data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result. Thus, since the first data is used to determine or suppress timing start point deviation between the first device and the second device, it supports determining or suppressing timing start point deviation between the first device and the second device in the sensing scenario, which is beneficial for improving sensing performance. Attached Figure Description

[0042] Figure 1 This is a schematic diagram of a system provided in an embodiment of this application;

[0043] Figure 2a This is a schematic diagram of a sensing and measurement scenario provided in an embodiment of this application;

[0044] Figure 2b This is a schematic diagram of a timing deviation provided in an embodiment of this application;

[0045] Figure 3 This is a flowchart of a data acquisition method provided in an embodiment of this application;

[0046] Figure 4 This is a schematic diagram of the time-domain resources of a signal provided in an embodiment of this application;

[0047] Figure 5 This is a schematic diagram of the frequency domain resources of a signal provided in an embodiment of this application;

[0048] Figure 6 This is a flowchart of another data acquisition method provided in an embodiment of this application;

[0049] Figure 7 This is a flowchart of a signal configuration method provided in an embodiment of this application;

[0050] Figure 8 This is a schematic diagram of the time delay spectrum of a signal provided in an embodiment of this application;

[0051] Figure 9 This is a schematic diagram of the time-domain resources of a signal provided in an embodiment of this application;

[0052] Figure 10 This is a structural diagram of a data acquisition device provided in an embodiment of this application;

[0053] Figure 11 This is a structural diagram of another data acquisition device provided in an embodiment of this application;

[0054] Figure 12 This is a structural diagram of a signal configuration device provided in an embodiment of this application;

[0055] Figure 13 This is a structural diagram of a communication device provided in an embodiment of this application;

[0056] Figure 14 This is a structural diagram of a device provided in an embodiment of this application;

[0057] Figure 15 This is a structural diagram of another device provided in an embodiment of this application;

[0058] Figure 16 This is a structural diagram of another device provided in an embodiment of this application. Detailed Implementation

[0059] The technical solutions of the embodiments of this application will be clearly described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application are within the scope of protection of this application.

[0060] The terms "first," "second," etc., used in this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, not limited in number; for example, the first object can be one or more. Furthermore, "or" in this application indicates at least one of the connected objects. For example, the scope of protection for "A or B" covers at least three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. In addition, the terms "A and / or B," "at least one of A and B," and "at least one of A or B" also cover at least the above three scenarios. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0061] The term "instruction" in this application can be either a direct instruction (or explicit instruction) or an indirect instruction (or implicit instruction). A direct instruction can be understood as one in which the sender explicitly informs the receiver of specific information, the operation to be performed, or the requested result, etc., in the instruction sent. An indirect instruction can be understood as one in which the receiver determines the corresponding information based on the instruction sent by the sender, or makes a judgment and determines the operation to be performed or the requested result, etc., based on the judgment result.

[0062] It is worth noting that the technology described in the embodiments of this application is not limited to Long Term Evolution (LTE) / LTE-Advanced (LTE-A) systems, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency-Division Multiple Access (SC-FDMA), or other systems.

[0063] The terms "system" and "network" used in the embodiments of this application are often used interchangeably, and the described technologies can be used with respect to the systems and radio technologies mentioned above, as well as other systems and radio technologies. The following description describes a New Radio (NR) system for illustrative purposes, and the term NR is used in most of the following description; however, these technologies can also be applied to systems other than NR systems, such as 6th generation (6G) systems. th Generation 6G communication system.

[0064] Figure 1 This diagram illustrates a block diagram of a wireless communication system applicable to embodiments of this application. The wireless communication system includes a terminal 11 and a network-side device 12.

[0065] Terminal 11 can be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipboard equipment, pedestrian user equipment (PUE), smart home (home devices with wireless communication capabilities, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM, or self-service machine, etc. Wearable devices include: smartwatches, smart bracelets, smart earphones, smart glasses, smart jewelry (smart bracelets, smart chains, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. Among these, in-vehicle devices can also be referred to as in-vehicle terminals, in-vehicle controllers, in-vehicle modules, in-vehicle components, in-vehicle chips, or in-vehicle units, etc. It should be noted that the specific type of terminal 11 is not limited in the embodiments of this application.

[0066] Network-side equipment 12 may include access network equipment or core network equipment. Access network equipment may also be referred to as Radio Access Network (RAN) equipment, radio access network function, radio access network unit, or satellite. Access network equipment may include base stations, Wireless Local Area Network (WLAN) access points (AS), or Wireless Fidelity (WiFi) nodes, etc. In this context, a base station may be referred to as a Node B (NB), Evolved Node B (eNB), Next Generation Node B (gNB), New Radio Node B (NR Node B), Access Point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), Radio Base Station, Radio Transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B, Transmit / Receive Point (TRP), or any other suitable term in the relevant field, as long as the same technical effect is achieved. The base station is not limited to any specific technical terminology. It should be noted that in this application embodiment, only a base station in an NR system is used as an example for introduction, and the specific type of base station is not limited.

[0067] Core network equipment, also known as core network nodes, core network functions, or core network elements, includes, but is not limited to, at least one of the following: Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized network configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (or L-NEF), and Binding Support Function. Support Functions (BSF), Application Functions (AF), Location Management Functions (LMF), Gateway Mobile Location Centres (GMLC), and Network Data Analytics Functions (NWDAF), etc. It should be noted that this application embodiment only uses core network equipment in the NR system as an example and does not limit the specific type of core network equipment. If the name of the core network equipment mentioned in this application embodiment changes in subsequent protocol versions (e.g., 6G), it will still be within the scope of protection of this application.

[0068] Optionally, the core network equipment can be implemented by one or more functional modules in a single device, or by multiple devices working together; this application does not specifically limit this. It is understood that the aforementioned functional modules can be network elements in hardware devices, software functional modules running on dedicated hardware, or virtualized functional modules instantiated on a platform (e.g., a cloud platform).

[0069] In some embodiments, future Beyond 5G (B5G) and 6G wireless communication systems are expected to provide a variety of high-precision sensing services, such as indoor positioning for robot navigation, Wi-Fi sensing for smart homes, and radar sensing for autonomous vehicles. Sensing and communication systems are typically designed separately and occupy different frequency bands. Integrated Sensing and Communication (ISAC) enables sensing and communication systems to share the same frequency band and hardware, improving frequency efficiency and reducing hardware costs. ISAC will become a key technology for future wireless communication systems to support many important application scenarios. Typical applications of ISAC include: navigation and obstacle avoidance for autonomous vehicles, Wi-Fi-based indoor positioning and activity recognition, communication and sensing for unmanned aerial vehicles, extended reality (XR), and radar and communication integration. Each application has different requirements, limitations, and regulatory issues. ISAC has already attracted significant research interest and attention from academia and industry.

[0070] ISAC achieves a low-cost, integrated implementation of communication and sensing functions through shared hardware and software-defined features. Its main characteristics include: a unified and simplified architecture; reconfigurable and scalable functionality; and improved efficiency and reduced costs. The advantages of integrated communication and sensing are threefold: reduced equipment costs and smaller size; improved spectrum utilization; and enhanced system performance.

[0071] Currently, the typical scenarios of integrated communication and sensing that can be realized by upgrading the technology based on the 5G communication system architecture are shown in Table 1 below.

[0072] Table 1:

[0073]

[0074] In some embodiments, depending on the different sensing signal transmitting and receiving nodes, the methods may include, but are not limited to, those mentioned above. Figure 2a The six sensing links shown are... It should be noted that... Figure 2aEach sensing link in the example is illustrated with one sending node and one receiving node. In a real system, different sensing links can be selected according to different sensing requirements. Each sensing link can have one or more sending and receiving nodes, and a real sensing system can include multiple different sensing links. Figure 2a The perception targets in this example are people and vehicles, and it is assumed that neither people nor vehicles carry or have signal receiving / transmitting equipment installed. In reality, the perception targets will be much richer.

[0075] Sensing Link 1: Base station self-transmitting and self-receiving sensing. In this method, the base station sends sensing signals and obtains the sensing results by receiving the echoes of these signals;

[0076] Sensing Link 2: Inter-base station air interface sensing. In this mode, base station 2 receives sensing signals sent by base station 1 and obtains the sensing results.

[0077] Sensing Link 3: Uplink air interface sensing. In this mode, the base station receives sensing signals sent by the terminal and obtains the sensing results.

[0078] Sensing Link 4: Downlink Air Interface Sensing. In this mode, the terminal receives sensing signals sent by the base station and obtains the sensing results.

[0079] Sensing Link 5: Terminal Self-Sending and Receiving Sensing. In this mode, the terminal sends a sensing signal and obtains the sensing result by receiving the echo of the sensing signal.

[0080] Sensing Link 6: Sidelink sensing between terminals. For example, terminal 2 receives a sensing signal sent by terminal 1 and obtains a sensing result, or terminal 1 receives a sensing signal sent by terminal 2 and obtains a sensing result.

[0081] It should be noted that, Figure 2a Each sensing method is illustrated with a sensing signal transmitter and a sensing signal receiver as an example. In actual systems, one or more different sensing methods can be selected according to different sensing use cases and sensing requirements, and each sensing method can have one or more transmitters and receivers. Figure 2a The perception targets in this example are people and vehicles, and it is assumed that neither people nor vehicles carry or have signal receiving / transmitting equipment installed. In reality, the perception targets will be much richer.

[0082] exist Figure 2aOf the six basic sensing methods shown, in four methods—inter-base station air interface sensing, uplink air interface sensing, downlink air interface sensing, and inter-terminal sidelink sensing—the transmitter and receiver of the sensing signal belong to different devices; that is, these four sensing methods are dual-site sensing. However, in two sensing methods—base station self-transmission and self-reception sensing and terminal self-transmission and self-reception sensing—the transmitter and receiver of the sensing signal belong to the same device; that is, these two sensing methods are single-site sensing.

[0083] Dual-station sensing does not require the equipment to have full-duplex capability, and its signal propagation characteristics are essentially the same as those in existing communication systems. Therefore, dual-station sensing can fully utilize the hardware and signal design of existing communication systems, thus enabling truly integrated communication and sensing design at a lower cost. Furthermore, dual-station sensing, especially uplink or downlink air interface sensing, allows for flexible selection of the terminal equipment responsible for transmitting or receiving sensing signals. If a terminal equipment closer to the sensing target is selected, the signal propagation distance from the target to the terminal is shorter, resulting in lower signal propagation path loss and ultimately a gain in sensing signal power. Based on these advantages, dual-station sensing has remained a hot topic in integrated sensing research.

[0084] However, a significant challenge in dual-station sensing mode is the time-frequency asynchrony between the transmitter and receiver of the sensing signal. The transmitter and receiver each use their respective frequency sources to generate local oscillator and clock signals for transmitting and receiving the sensing signal. The difference between the local oscillator and clock signals between the transceivers leads to timing deviations. For example... Figure 2b As shown, timing deviation includes two parts: timing start point deviation ( Figure 2b Middle τ strat (as shown) and timed drift ( Figure 2b (As shown in Δτ1, Δτ2, Δτ3, etc.). The timing start point deviation is mainly caused by the overall deviation between the receiver clock and the transmitter clock of the sensing signal, resulting in an overall shift in the time delay spectrum. Timing drift, on the other hand, is caused by the difference in clock periods between the receiver clock and the transmitter clock of the sensing signal; as time changes, the timing drift on each OFDM symbol will change.

[0085] The following description, in conjunction with the accompanying drawings, details a data acquisition method, signal configuration method, apparatus, and device provided in this application through some embodiments and application scenarios.

[0086] Please see Figure 3 , Figure 3 This is a flowchart of a data acquisition method provided in an embodiment of this application, such as... Figure 3 As shown, it includes the following steps:

[0087] Step 301: The first device sends a first signal to the second device, the first signal being used for sensing and measurement.

[0088] The first device mentioned above can be a terminal or a network-side device, and the second device mentioned above can be a terminal or a network-side device.

[0089] The first signal mentioned above can be called the sensing signal.

[0090] Step 302: The first device receives a second signal sent by the second device. The second signal is used to cooperate with the first signal to perform round-trip measurement, or the second signal is used for sensing measurement and to cooperate with the first signal to perform round-trip measurement.

[0091] The second signal mentioned above is used in conjunction with the first signal for round-trip measurement, and can also be used for sensing measurement.

[0092] In this embodiment of the application, round-trip measurement can also be referred to as round-trip time (RTT) measurement.

[0093] The execution order of steps 301 and 302 is not limited in this embodiment; it can be as follows: Figure 3 The order in which steps 301 and 302 are executed is not limited. Alternatively, steps 302 can be executed first and then steps 301.

[0094] Step 303: The first device determines first data based on the second signal. The first data is used to determine or suppress the timing start point deviation between the first device and the second device, or the first data is used to determine or suppress the timing start point deviation between the first device and the second device, and is also used to determine the sensing result.

[0095] The determination of the first data based on the second signal can be the first data obtained by measuring the second signal, or the first data obtained based on the first signal and the second signal.

[0096] The above-mentioned suppression of timing start point deviation between the first device and the second device can be understood as eliminating the timing start point deviation between the first device and the second device after determining the timing start point deviation between the first device and the second device.

[0097] The aforementioned first data is used to determine or suppress the timing start point deviation between the first device and the second device. This can be understood as the ability to determine or suppress the timing start point deviation between the first device and the second device based on the first data combined with the round-trip measurement principle.

[0098] In this embodiment, the timing start point deviation between the transmitting and receiving ends of the first and second signals is estimated by round-trip measurement. According to the radar "stop-hop" model, the motion state (position and velocity) of the sensed target can be considered unchanged within a short period of time (e.g., a few milliseconds to tens of milliseconds). Therefore, for the same sensed target, the signal propagation delay obtained by the round-trip measurement is the same when the transmitting and receiving ends of the first and second signals transmit and receive each other in both directions. The absolute values ​​of the timing start point deviations are the same, but the signs are opposite. Therefore, the first data obtained by the round-trip measurement can determine or suppress the timing start point deviation between the first and second devices.

[0099] The timing start point deviation between the first device and the second device can refer to the timing start point deviation of the second device relative to the first device when the second device receives the first signal.

[0100] In this embodiment of the application, since the first data is used to determine or suppress the timing start point deviation between the first device and the second device, it supports the determination or suppression of the timing start point deviation between the first device and the second device in the sensing scenario, which is beneficial to improving sensing performance.

[0101] As an optional implementation, the first data includes at least one of the following:

[0102] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0103] The time delay spectrum of the second signal;

[0104] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0105] The time-delay-Doppler spectrum of the second signal;

[0106] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0107] Parameters of the perceived target;

[0108] The time difference between the uplink timing and the downlink timing of the first device;

[0109] The second signal is associated with at least one of the following: port number, synchronization signal block (SSB), and channel state information reference signal (CSI-RS);

[0110] The timestamp of the first signal;

[0111] The timestamp of the second signal;

[0112] First, adjust the information at regular intervals.

[0113] The one or more paths with the highest power in the second signal (also referred to as signal paths) can be the one or more paths with the highest power in the time delay spectrum of the second signal. These paths with the highest power can have the same received power, or they can be the paths with the highest received power in the second signal, meaning their received power is higher than that of other paths. The number of these paths can be determined by protocol or configured by network-side equipment.

[0114] In some implementations, when reporting the first data, and where the first data includes the time difference, the first data may also include the power (or amplitude) of one or more of the paths.

[0115] The timing start point deviation between the first and second devices can be determined or suppressed based on the difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal. For example, the timing start point deviation between the first and second devices can be determined or suppressed using the RTT method based on the difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal, and the difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal. Taking the example of the first device transmitting the first signal, the second device receiving the first signal and then transmitting the second signal at a predetermined time, and finally the first device receiving the second signal, the first data includes the difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal, denoted as... The superscript '1' indicates the first device, and the numbers in parentheses are the path numbers. Correspondingly, the second device extracts the time difference between the reception time of each path in the first signal and the time difference between the second device transmitting the second signal, and records them as follows: Therefore, the actual propagation time of path number 1 in space is The actual propagation time of path number 2 in space is And so on. Obviously, the difference between the time delay of one or more paths with the highest power in the second signal and the corresponding actual propagation time is denoted as the timing start point deviation, or the final timing start point deviation can be obtained by averaging the timing start point deviations extracted from multiple paths.

[0116] The time delay spectrum of the second signal is obtained by the first device measuring the second signal. Based on this time delay spectrum, the difference between the reception time of one or more paths with the highest power in the second signal and the time when the first device transmits the first signal can be determined. Therefore, based on the difference between the reception time of one or more paths with the highest power in the second signal and the time when the first device transmits the first signal, the timing start point deviation between the first device and the second device can be determined or suppressed. Alternatively, based on the time delay spectrum of the second signal, the offset between the time delay spectra of the first signal and the second signal in the time delay domain can be obtained through calculation (e.g., sliding correlation or cyclic correlation calculation). Combined with the time difference between the uplink timing and downlink timing of the first device, the timing start point deviation between the first device and the second device can be determined or suppressed.

[0117] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal can be determined by threshold decision on the power (or amplitude) of the time delay spectrum of the second signal measured by the first device based on a preset threshold (e.g., 20dB, 25dB, etc.) to determine the part of the time delay spectrum that exceeds the threshold.

[0118] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal can determine the difference between the reception time of one or more paths with the highest power in the second signal and the time when the first device sends the first signal. Therefore, based on the difference between the reception time of one or more paths with the highest power in the second signal and the time when the first device sends the first signal, the timing start point deviation between the first device and the second device can be determined or suppressed.

[0119] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal can reduce the amount of data in the first data, thereby saving computation or reporting costs.

[0120] The time-delay Doppler spectrum of the second signal is obtained by the first device measuring the second signal. Based on this time-delay Doppler spectrum, the difference between the reception time of one or more paths with the highest power in the second signal and the time when the first device transmits the first signal can be determined. Therefore, based on the difference between the reception time of one or more paths with the highest power in the second signal and the time when the first device transmits the first signal, the timing start point deviation between the first device and the second device can be determined or suppressed. Alternatively, based on the time-delay Doppler spectrum of the second signal, the offset between the time-delay Doppler spectra of the first signal and the second signal in the time-delay domain can be obtained through calculation (e.g., sliding correlation or cyclic correlation calculation). Combined with the time difference between the uplink and downlink timing of the first device, the timing start point deviation between the first device and the second device can be determined or suppressed.

[0121] Since the time-delay-Doppler spectrum allows the first data to include Doppler-related information, it can support the acquisition of timing or sensing-related information based on Doppler-related information, which is more conducive to improving sensing performance.

[0122] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal can be determined by threshold decision on the power (or amplitude) of the time-delay-Doppler spectrum of the second signal measured by the first device based on a preset threshold (e.g., 20dB, 25dB, 30dB, etc.) to determine the portion of the time-delay-Doppler spectrum that exceeds the threshold.

[0123] The time-delay-Doppler spectrum of the second signal after threshold decision can reduce the amount of data in the first data, thereby saving computation or reporting costs.

[0124] The time difference between the uplink timing and downlink timing of the first device can be the timing advance (TA) of the uplink timing relative to the downlink timing of the first device. When the first device is a terminal, the first device can report this timing advance value.

[0125] Alternatively, the time difference between the uplink timing and downlink timing of the first device can be the difference between the start time of the uplink OFDM symbol / slot / subframe / frame and the start time of the corresponding downlink OFDM symbol / slot / subframe / frame. In the NR system, the time difference between the uplink timing and downlink timing is defined as timing advance.

[0126] The timing start point deviation between the first and second devices can be determined or suppressed based on the time difference between the uplink and downlink timing of the first device. For example, the offset between the time delay-Doppler spectra of the first and second signals in the time delay domain can be obtained by calculation (e.g., sliding correlation or cyclic correlation) based on the time delay-Doppler spectrum of the second signal. Combined with the time difference between the uplink and downlink timing of the first device, the timing start point deviation between the first and second devices can be determined or suppressed.

[0127] The port number associated with the second signal may be the port number that receives the second signal, the SSB information may be the identifier of the SSB associated with the second signal, and the CSI-RS may be the identifier of the CSI-RS associated with the second signal.

[0128] Reporting the port number of the second signal facilitates the association and pairing between the first and second signals. Similarly, in addition to the port number, the associated SSB or CSI-RS can also be used for the aforementioned association and pairing. For example, if the beam from which the first device transmits the first signal and the beam from which the first device receives the second signal are associated with the same SSB or CSI-RS, then the transmit beam of the first signal and the receive beam of the second signal can be considered to be the same, satisfying the aforementioned association and pairing relationship. Through the association and pairing between the first and second signals, the embodiments of this application can better determine or suppress the timing start point deviation between the first and second devices.

[0129] The timestamp of the first signal can represent at least one of the transmission time and reception time of the first signal;

[0130] The timestamp of the second signal can represent at least one of the transmission and reception times of the second signal. Based on the timestamps of the first and second signals, an association between the first and second signals can be established to ensure that the time interval between the transmission and reception times of the second signal corresponding to the first data and the transmission and reception times of the first signal corresponding to the second data meets the requirements.

[0131] The aforementioned first timing adjustment information can be a timing adjustment that occurs between the time when the first device sends the first symbol of the first signal and the time when the first device receives the second symbol of the second signal. The aforementioned first timing adjustment information can be represented as an integer multiple of Tc or Ts, such as Tc = 1 / (480kHz*4096), Ts = 1 / (15kHz*2048).

[0132] The first symbol mentioned above may be at least one of the symbols occupied by the first signal mentioned above, and the second symbol mentioned above may be at least one of the symbols occupied by the second signal mentioned above.

[0133] For example: The first signal contains M1 symbols, where the transmission time or symbol index of the first symbol (earliest transmission time) is T1, and the transmission time or symbol index of the last symbol (latest transmission time) is T2. Here, M1 > 1. The second signal contains M2 symbols, where the transmission time or symbol index of the first symbol (earliest transmission time) is T3, and the transmission time or symbol index of the last symbol (latest transmission time) is T4. Here, M2 ≥ 1. Obviously, when M2 = 1, T3 = T4.

[0134] When T4 is less than T1, the transmission time of the second signal is generally earlier than the transmission time of the first signal, such as... Figure 4As shown in (a), at this time, the last symbol of the second signal is the aforementioned second symbol, and the first symbol of the first signal is the aforementioned first symbol.

[0135] When T2 is less than T3, the transmission time of the second signal is generally later than the transmission time of the first signal, such as... Figure 4 As shown in (b) above, at this time, the first symbol of the second signal is the aforementioned second symbol, and the last symbol of the first signal is the aforementioned first symbol.

[0136] If T1 is greater than or equal to T3 and less than or equal to T4, and / or if T2 is greater than or equal to T3 and less than or equal to T4, then the time span of the second signal overlaps with the time span of the first signal. Figure 4 As shown in (c) of 4, (d) of 4, and (e) of 4. At this time, in the overlapping region of the second signal and the first signal, one OFDM symbol of the second signal is the aforementioned second symbol, and one OFDM symbol of the first signal is the aforementioned first symbol.

[0137] It should be noted that in the embodiments of this application, the symbol may refer to the OFDM symbol.

[0138] The aforementioned first timing adjustment information helps to suppress the timing start point deviation between the first device and the second device. Alternatively, during the measurement reporting process, the aforementioned first timing adjustment information can be reported so that the device receiving the information can suppress the timing start point deviation between the first device and the second device, thereby improving sensing performance.

[0139] The parameters of the aforementioned sensing target can be parameters of one or more sensing targets detected based on the aforementioned second signal. For each sensing target, at least one of the following parameters is included: time delay, Doppler, power, or amplitude.

[0140] The parameters of the aforementioned sensing target can be understood as the parameters of the sensing target determined based on the first data when the first data is used to determine the sensing result.

[0141] By using the parameters of the aforementioned sensing target, sensing measurements based on a second signal can be achieved, thereby improving sensing performance.

[0142] As an optional implementation, the first signal and the second signal satisfy at least one of the following in the time domain:

[0143] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0144] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0145] The first symbol and the second symbol mentioned above can be found in the corresponding descriptions of the above embodiments.

[0146] The statement that the first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period can be understood as at least one symbol of the first signal and at least one symbol of the second signal being within the same timing adjustment period. Since the first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period, there is no need to report timing adjustment information.

[0147] The aforementioned preset thresholds can be agreed upon in the protocol or configured by the network-side devices.

[0148] Since the time interval or symbol index difference between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold, the influence of timing drift between the first symbol and the second symbol can be reduced or eliminated, thereby improving the accuracy of determining or suppressing the timing start point deviation between the first device and the second device.

[0149] As an optional implementation, the method further includes:

[0150] The first device sends the first data to the second or third device; or

[0151] The first device receives second data sent by the second device. The second data is used to determine or suppress the timing start point deviation between the first device and the second device, or the second data is used to determine or suppress the timing start point deviation between the first device and the second device, and is also used to determine the sensing result.

[0152] The aforementioned third device can be a terminal or a network-side device. In some embodiments, the aforementioned third device can be a sensing function network element, also called a sensing network element or sensing network function. It can be located on the RAN side or the core network side, referring to a network node in the core network and / or RAN responsible for at least one function such as sensing request processing, sensing resource scheduling, sensing information interaction, and sensing data processing. It can be an upgrade based on AMF or LMF in the 5G network, or it can be other network nodes or newly defined network nodes. Specifically, the functional characteristics of the sensing function network element can include at least one of the following:

[0153] The system interacts with wireless signal transmitting equipment and / or wireless signal measuring equipment (including the target terminal or the serving base station of the target terminal or the base station associated with the target area) to exchange target information. The target information includes sensing processing requests, sensing capabilities, sensing auxiliary data, sensing measurement types, sensing resource configuration information, etc., in order to obtain the value of the target sensing result or sensing measurement (uplink measurement or downlink measurement) sent by the wireless signal measuring equipment. The wireless signal can also be referred to as the sensing signal.

[0154] The sensing method used is determined based on factors such as the type of sensing service, the information of sensing service consumers, the required Quality of Service (QoS) requirements, the sensing capabilities of the wireless signal transmitting equipment, and the sensing capabilities of the wireless signal measuring equipment. The sensing method may include: base station A transmitting and base station B receiving, or base station transmitting and terminal receiving, or base station A transmitting and receiving, or terminal transmitting and base station receiving, or terminal transmitting and receiving, or terminal A transmitting and terminal B receiving, etc.

[0155] The sensing equipment serving the sensing service is determined based on factors such as the type of sensing service, information of the sensing service consumer, required sensing QoS requirements, sensing capabilities of wireless signal transmitting equipment, and sensing capabilities of wireless signal measuring equipment. The sensing equipment includes wireless signal transmitting equipment and / or wireless signal measuring equipment.

[0156] The overall coordination and scheduling of resources required for managing sensing services, such as the corresponding configuration of sensing resources for base stations and / or terminals;

[0157] The values ​​of the sensed measurements are processed or calculated to obtain the sensing results. Further, the sensing results are verified, and the sensing accuracy is estimated.

[0158] The first device sending the first data to the second or third device can enable the second or third device to determine or suppress the timing start point deviation between the first device and the second device based on the first data. For example, the second or third device can determine or suppress the timing start point deviation between the first device and the second device based on the first data and the second data.

[0159] The aforementioned second data is data determined by the second device based on the first signal.

[0160] When the first device receives the second data sent by the second device, the first device can determine or suppress the timing start point deviation between the first device and the second device based on the first data and the second data.

[0161] In some implementations, the second data includes at least one of the following:

[0162] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0163] The time-delay Doppler spectrum of the first signal;

[0164] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0165] Parameters of the perceived target;

[0166] The time difference between the uplink timing and downlink timing of the second device;

[0167] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0168] The timestamp of the first signal;

[0169] The timestamp of the second signal;

[0170] Second, adjust the information at regular intervals.

[0171] The content of the second data is described in the corresponding description of the first data, and will not be repeated here. The content of the second data can be combined with the first data to determine or suppress the timing start point deviation between the first device and the second device. For details, please refer to the corresponding description of the implementation method of the first data, and will not be repeated here.

[0172] The aforementioned second timing adjustment information may be a timing adjustment that occurs between the time when the second device receives the first symbol of the first signal and the time when the second device sends the second symbol of the second signal.

[0173] The aforementioned second timing adjustment information helps to suppress the timing start point deviation between the first device and the second device. Alternatively, during the measurement reporting process, the aforementioned second timing adjustment information can be reported so that the device receiving the information can suppress the timing start point deviation between the first device and the second device, thereby improving sensing performance.

[0174] The parameters of the aforementioned sensing target may be parameters of one or more sensing targets detected by the second device based on the aforementioned first signal. For each sensing target, at least one of the following parameters may be included: time delay, Doppler, power, or amplitude. The aforementioned parameters may be sensing measurements.

[0175] The parameters of the aforementioned sensing target can be understood as the parameters of the sensing target determined based on the first data when the first data is used to determine the sensing result.

[0176] By using the parameters of the aforementioned sensing target, sensing measurements can be performed based on the first signal, thereby improving sensing performance.

[0177] As an optional implementation, the above method further includes the following:

[0178] The first device sends signal configuration information to the second device; or

[0179] The first device receives signal configuration information sent by the second or third device;

[0180] The signal configuration information includes at least one of the following:

[0181] Signal configuration information for the first signal and signal configuration information for the second signal.

[0182] The aforementioned sending of signal configuration information from the first device to the second device can occur when the first device is a network-side device.

[0183] The first device receiving signal configuration information sent by the second or third device can be performed when the first device is a terminal or a network-side device.

[0184] The above signal configuration information enables the first device and the second device to perform round-trip measurements using the first and second signals, thereby determining or suppressing the timing start point deviation between the first device and the second device and thus improving sensing performance.

[0185] It should be noted that when the signal configuration information includes one of the signal configuration information of the first signal and the signal configuration information of the second signal, the other item can be pre-configured or agreed upon by the protocol, or both the signal configuration information of the first signal and the signal configuration information of the second signal can be agreed upon by the protocol or pre-configured.

[0186] In some implementations, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0187] Time-frequency domain resource map information;

[0188] Configuration of resource sets or resources in the time-frequency domain.

[0189] Among them, the aforementioned time-frequency domain resource pattern information can be the identifier of the time-frequency domain resource pattern.

[0190] The resource set or resource configuration of the aforementioned time-frequency domain resources can be the identifier of the resource set or the resource identifier of the time-frequency domain resources.

[0191] In some implementations, the resource set or resource configuration of the time-frequency domain resources includes at least one of the following:

[0192] The starting position of the first or second signal in the time domain;

[0193] The duration occupied in the time domain by the first or second signal, such as the time length between the sensing symbol of the smallest index and the sensing symbol of the largest index within the resource set.

[0194] Perceive the spacing between symbols;

[0195] Perceive the number of symbols;

[0196] Perceive the density of symbols;

[0197] The repetition period in the time domain of the time slot where the perception symbol is located;

[0198] The position of the perceived symbol within its time slot;

[0199] Perceiving the spatial distribution of symbols in the time domain;

[0200] The starting position of the first or second signal in the frequency domain;

[0201] The bandwidth occupied by the first or second signal in the frequency domain refers to the bandwidth between the sensing subcarrier of the smallest index and the sensing subcarrier of the largest index within the resource set.

[0202] Sensing the density of subcarriers;

[0203] The repetition period in the frequency domain of the resource block (RB) where the subcarrier is located;

[0204] Sensing the position of the subcarrier within its respective RB;

[0205] The location of the RB where the sensing subcarrier is located in the frequency domain can be represented, for example, by a bitmap.

[0206] Sensing the positional distribution of subcarriers in the frequency domain;

[0207] For a resource set, it may also include a list or identifier of the resources contained in the resource set.

[0208] The aforementioned sensing symbols refer to symbols used to perform sensing services, which may be symbols dedicated to sensing services or symbols shared by sensing services and communication services; the aforementioned sensing subcarriers refer to subcarriers used to perform sensing services, which may be symbols dedicated to sensing services or subcarriers shared by sensing services and communication services.

[0209] In some embodiments, the signal configuration information of at least one of the first signal and the second signal may further include at least one of the following:

[0210] Transmission power can be energy per resource particle (EPRE) or power offset relative to a reference signal, such as a power offset of 3dB relative to a certain SSB.

[0211] Beam information can be beam direction or association with other reference signals in the same beam direction. For example, if it is in the same beam direction as a certain identified SSB, then the identifier of that SSB is given, and the quasi co-location (QCL) relationship is given.

[0212] In some implementations, the signal configuration information of the first signal may also include an identifier of the second signal associated with the first signal.

[0213] The above-mentioned identifier can be used to identify the second signal that performs round-trip measurement in conjunction with the first signal. In some embodiments, the relationship between the second signal and the first signal can be pre-configured, that is, the identifier of the second signal associated with the first signal may not be included in the signal configuration information.

[0214] In some implementations, the signal configuration information of the second signal may also include an identifier of the first signal associated with the second signal.

[0215] The first signal that performs round-trip measurements with the second signal can be identified by the above-mentioned identifier. In some embodiments, the relationship between the second signal and the first signal can be pre-configured, that is, the signal configuration information may not include the identifier of the first signal associated with the second signal.

[0216] In some implementations, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0217] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0218] The information of the first symbol mentioned above can be the symbol index of the first symbol in the first signal.

[0219] The information of the second symbol mentioned above can be the symbol index of the second symbol in the second signal.

[0220] The first and second symbols mentioned above are described in the corresponding descriptions of the above embodiments, and will not be repeated here.

[0221] Because the information includes the first and second symbols mentioned above, more accurate timing adjustment information can be determined based on this information, such as determining the first or second timing adjustment information, so as to improve the accuracy of determining or suppressing the timing start point deviation between the first and second devices, which is more conducive to improving sensing performance.

[0222] In some implementations, the first signal and the second signal satisfy one of the following in the frequency domain:

[0223] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0224] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency interval between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency interval between adjacent subcarriers in the subcarrier occupied by the first signal.

[0225] The bandwidth of a signal determines the resolution of the delay, and the frequency spacing between adjacent subcarriers in the subcarriers occupied by the signal determines the maximum unambiguous range of the delay. In the above embodiment, since the bandwidth of the first signal and the second signal are the same and the frequency spacing between adjacent subcarriers is the same, the first signal and the second signal can have the same delay resolution and the same maximum unambiguous range of the delay, so as to improve the reliability of round-trip measurement.

[0226] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal. This can be understood as the first signal and the second signal satisfying at least one of the following in the frequency domain:

[0227] The bandwidth of the second signal is greater than the bandwidth of the first signal;

[0228] The frequency spacing between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0229] The bandwidth of the second signal is greater than that of the first signal and / or the frequency interval between adjacent subcarriers in the subcarrier occupied by the second signal is less than that between adjacent subcarriers in the subcarrier occupied by the first signal. This can also make the value of the delay resolution of the second signal less than the data of the delay resolution of the second signal, and the maximum unambiguous range of the delay of the second signal greater than the maximum unambiguous range of the delay of the first signal. In some embodiments, the above-mentioned round-trip measurement can also be performed.

[0230] In some implementations, when the bandwidth of the second signal is greater than the bandwidth of the first signal and / or the frequency spacing between adjacent subcarriers in the subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarriers occupied by the first signal:

[0231] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0232] The above-mentioned sampling of the second signal in the frequency domain can refer to extracting a portion of the frequency domain resources occupied by the second signal to obtain the second signal transmitted by this portion of the frequency domain resources, or it can refer to intercepting a portion of the bandwidth of the first signal in the frequency domain of the second signal.

[0233] In this embodiment, the first and second signals can be made to have the same bandwidth through sampling, and the frequency spacing between adjacent subcarriers can be the same, thereby improving the reliability of round-trip measurements.

[0234] For example: the bandwidth of the first signal is the first bandwidth (denoted as B1), the number of subcarriers occupied by the first signal is the first quantity (denoted as N1), and the frequency interval between adjacent subcarriers occupied by the first signal is the first frequency interval (denoted as Δ1). Here, the first bandwidth is the frequency interval between the lowest frequency subcarrier and the highest frequency subcarrier occupied by the first signal; therefore, we have... here This indicates rounding up to the nearest integer.

[0235] The bandwidth of the second signal is the second bandwidth (denoted as B2), the number of subcarriers occupied by the second signal is the second quantity (denoted as N2), and the frequency interval between adjacent subcarriers occupied by the second signal is the second frequency interval (denoted as Δ2). Here, the second bandwidth is the frequency interval between the lowest frequency subcarrier and the highest frequency subcarrier occupied by the second signal; therefore, we have... here This indicates rounding up to the nearest integer.

[0236] The first signal and the second signal satisfy the following condition in the frequency domain:

[0237] The first signal and the second signal have the same bandwidth, that is, the first bandwidth B1 is equal to the second bandwidth B2. The frequency interval between adjacent subcarriers in the subcarrier occupied by the first signal is the same as the frequency interval between adjacent subcarriers in the subcarrier occupied by the second signal, that is, the first frequency interval Δ1 is equal to the second frequency interval Δ2.

[0238] The bandwidth of the second signal being greater than that of the first signal can be expressed as the second bandwidth B2 being greater than the second bandwidth B1, and / or the frequency interval between adjacent subcarriers in the subcarrier occupied by the second signal being less than the frequency interval between adjacent subcarriers in the subcarrier occupied by the first signal, i.e., the second frequency interval Δ2 being less than the first frequency interval Δ1; and satisfying that by sampling the second signal in the frequency domain, it is possible to achieve the same bandwidth for the first signal and the second signal, and the same frequency interval between adjacent subcarriers.

[0239] It is easy to understand that within the first bandwidth B1, there are a total of N1 or more subcarriers, and the first signal occupies N1 subcarriers in a comb-like manner. Within the second bandwidth B2, there are a total of N2 or more subcarriers, and the second signal occupies N2 subcarriers in a comb-like manner. Specifically, it can be described as follows: Figure 5 As shown.

[0240] The subcarrier spacing of the first signal and the subcarrier spacing of the second signal can be the same or different, such as... Figure 5 Case 1 of the second signal scheme shows the case where the subcarrier spacing of the second signal and the first signal are the same, while case 2 of the second signal shows the case where the subcarrier spacing of the second signal and the first signal are different. It is easy to see that in both cases, the first bandwidth and the second bandwidth are the same, and the first frequency spacing and the second frequency spacing are the same.

[0241] As an optional implementation, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0242] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0243] The beam that transmits the second signal is the same beam that receives the first signal;

[0244] The port that transmits the first signal and the port that receives the second signal are QCL;

[0245] The port that transmits the second signal and the port that receives the first signal are QCL;

[0246] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0247] In this embodiment, since the beam that transmits the first signal and the beam that receives the second signal are the same beam, round-trip measurements can be performed based on the same beam. This allows round-trip measurements to be performed based on the first and second signals to determine or suppress timing start point deviations between the first and second devices, thereby improving the final sensing performance.

[0248] In this embodiment, since the beam that transmits the second signal and the beam that receives the first signal are the same beam, round-trip measurements can be performed based on the same beam. This allows round-trip measurements to be performed based on the first and second signals to determine or suppress timing start point deviations between the first and second devices, thereby improving the final sensing performance.

[0249] In this embodiment, since the port transmitting the first signal and the port receiving the second signal are QCL, the round-trip measurement is performed based on the QCL relationship. This allows the round-trip measurement to be performed based on the first signal and the second signal to determine or suppress the timing start point deviation between the first device and the second device, thereby improving the final sensing performance.

[0250] In this embodiment, since the first signal and the second signal are associated with the same SSB or CSI-RS, the round-trip measurement is performed based on the same SSB or CSI-RS. This allows the round-trip measurement to be performed based on the first signal and the second signal to determine or suppress the timing start point deviation between the first device and the second device, thereby improving the final sensing performance.

[0251] As an alternative implementation, the second signal is a signal specifically used for round-trip measurements.

[0252] In this embodiment, since the beam that transmits the first signal and the beam that receives the second signal are the same beam, round-trip measurements can be performed based on the same beam. This allows round-trip measurements to be performed based on the first and second signals to determine or suppress timing start point deviations between the first and second devices, thereby improving the final sensing performance.

[0253] As an optional implementation, the second signal is a reference signal used for communication.

[0254] Among them, the reference signals used for communication can be positioning reference signals (PRS), channel state information reference signals (CSI-RS), sounding reference signals (SRS), and demodulation reference signals (DMRS).

[0255] In this embodiment, the second signal is a reference signal used for communication. This avoids introducing new signals and saves signal overhead.

[0256] In this embodiment, a first device sends a first signal to a second device, the first signal being used for sensing measurement; the first device receives a second signal sent by the second device, the second signal being used to perform round-trip measurement in conjunction with the first signal, or the second signal being used for both sensing measurement and round-trip measurement in conjunction with the first signal; the first device determines first data based on the second signal, the first data being used to determine or suppress timing start point deviation between the first device and the second device, or the first data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result. Thus, since the first data is used to determine or suppress timing start point deviation between the first device and the second device, it supports determining or suppressing timing start point deviation between the first device and the second device in the sensing scenario, which is beneficial for improving sensing performance.

[0257] Please see Figure 6 , Figure 6 This is a flowchart of a data acquisition method provided in an embodiment of this application, such as... Figure 6 As shown, it includes the following steps:

[0258] Step 601: The second device receives a first signal sent by the first device, the first signal being used for sensing and measurement;

[0259] Step 602: The second device determines second data based on the first signal. The second data is used to determine or suppress the timing start point deviation between the first device and the second device, or the second data is used to determine or suppress the timing start point deviation between the first device and the second device, and is also used to determine the sensing result.

[0260] Step 603: The second device sends a second signal to the first device. The second signal is used to cooperate with the first signal to perform round-trip measurement, or the second signal is used for sensing measurement and to cooperate with the first signal to perform round-trip measurement.

[0261] It should be noted that the execution order of steps 602 and 603 is not limited in the embodiments of this application. Figure 6 The step 602 is executed first, followed by the step 603. Alternatively, steps 602 and 603 can be executed simultaneously, or step 603 can be executed first, followed by step 602. For example, when determining the second data, the second data can be determined based on the first signal and the second signal.

[0262] In this embodiment, since the second data is used to determine or suppress the timing start point deviation between the first device and the second device, it supports the determination or suppression of the timing start point deviation between the first device and the second device in the sensing scenario, which is beneficial to improving sensing performance.

[0263] Optionally, the second data includes at least one of the following:

[0264] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0265] The time-delay Doppler spectrum of the first signal;

[0266] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0267] Parameters of the perceived target;

[0268] The time difference between the uplink timing and downlink timing of the second device;

[0269] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0270] The timestamp of the first signal;

[0271] The timestamp of the second signal;

[0272] Second, adjust the information at regular intervals.

[0273] Optionally, the method further includes:

[0274] The second device receives first data sent by the first device, the first data being used to determine or suppress timing start point deviation between the first device and the second device; or, the first data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine sensing results; or...

[0275] The second device sends the second data to the first device or the third device.

[0276] Optionally, the first data includes at least one of the following:

[0277] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0278] The time delay spectrum of the second signal;

[0279] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0280] The time-delay-Doppler spectrum of the second signal;

[0281] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0282] Parameters of the perceived target;

[0283] The time difference between the uplink timing and the downlink timing of the first device;

[0284] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0285] The timestamp of the first signal;

[0286] The timestamp of the second signal;

[0287] First, adjust the information at regular intervals.

[0288] Optionally, the method further includes the following:

[0289] The second device receives signal configuration information sent by the first device or the third device; or

[0290] The second device sends signal configuration information to the first device;

[0291] The signal configuration information includes at least one of the following:

[0292] Signal configuration information for the first signal and signal configuration information for the second signal.

[0293] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0294] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0295] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0296] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0297] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0298] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0299] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0300] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0301] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0302] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0303] The beam that transmits the second signal is the same beam that receives the first signal;

[0304] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0305] The port that transmits the second signal and the port that receives the first signal are QCL;

[0306] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0307] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0308] The second signal is a reference signal used for communication.

[0309] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0310] Time-frequency domain resource map information;

[0311] Resource sets or resource allocation in the time-frequency domain.

[0312] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0313] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0314] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0315] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0316] It should be noted that this embodiment is as a comparison with... Figure 3 The implementation method of the second device corresponding to the illustrated embodiment can be found in the following examples. Figure 3 To avoid repetition, the relevant descriptions of the embodiments shown will not be repeated in this embodiment.

[0317] Please see Figure 7 , Figure 7 This is a flowchart of a signal configuration method provided in an embodiment of this application, such as... Figure 7 As shown, it includes the following steps:

[0318] Step 701: The third device sends signal configuration information to at least one of the first device and the second device, wherein the signal configuration information includes at least one of the following:

[0319] Signal configuration information of the first signal and signal configuration information of the second signal;

[0320] Wherein, the first signal is used for sensing measurement, and the second signal is used to cooperate with the first signal for round-trip measurement, or the second signal is used for sensing measurement and cooperates with the first signal for round-trip measurement.

[0321] Optionally, the method further includes at least one of the following:

[0322] The third device receives first data sent by the first device. The first data is used to determine or suppress the timing start point deviation between the first device and the second device, or the first data is used to determine or suppress the timing start point deviation between the first device and the second device, and is also used to determine the sensing result.

[0323] The third device receives second data sent by the second device. The second data is used to determine or suppress the timing start point deviation between the first device and the second device, or the second data is used to determine or suppress the timing start point deviation between the first device and the second device, and is also used to determine the sensing result.

[0324] Optionally, the first data includes at least one of the following:

[0325] The first data includes at least one of the following:

[0326] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0327] The time delay spectrum of the second signal;

[0328] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0329] The time-delay-Doppler spectrum of the second signal;

[0330] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0331] Parameters of the perceived target;

[0332] The time difference between the uplink timing and the downlink timing of the first device;

[0333] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0334] The timestamp of the first signal;

[0335] The timestamp of the second signal;

[0336] First, adjust the information at regular intervals.

[0337] Optionally, the second data includes at least one of the following:

[0338] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0339] The time-delay Doppler spectrum of the first signal;

[0340] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0341] Parameters of the perceived target;

[0342] The time difference between the uplink timing and downlink timing of the second device;

[0343] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0344] The timestamp of the first signal;

[0345] The timestamp of the second signal;

[0346] Second, adjust the information at regular intervals.

[0347] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0348] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0349] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0350] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0351] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0352] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0353] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0354] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0355] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0356] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0357] The beam that transmits the second signal is the same beam that receives the first signal;

[0358] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0359] The port that transmits the second signal and the port that receives the first signal are QCL.

[0360] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0361] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0362] The second signal is a reference signal used for communication.

[0363] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0364] Time-frequency domain resource map information;

[0365] Resource sets or resource allocation in the time-frequency domain.

[0366] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0367] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0368] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0369] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0370] It should be noted that this embodiment is as a comparison with... Figure 3 The implementation method of the third device corresponding to the illustrated embodiment can be found in the following examples. Figure 3 To avoid repetition, the relevant descriptions of the embodiments shown will not be repeated in this embodiment.

[0371] The methods provided in the embodiments of this application are illustrated below through multiple examples:

[0372] Example 1:

[0373] This embodiment mainly describes the signaling process, including the following:

[0374] The first device and / or the second device acquire: signal configuration information (first configuration) of the first signal and / or signal configuration information (second configuration) of the second signal.

[0375] The signal configuration information of the first signal and the signal configuration information of the second signal are described in the corresponding descriptions of the above embodiments, and will not be repeated here.

[0376] The first device and / or the second device acquires the signal configuration information of the first signal and / or the signal configuration information of the second signal, including the following situations:

[0377] Downlink awareness (the first device is a base station and the second device is a terminal) includes: signal configuration information of the first signal and / or signal configuration information of the second signal sent by the first device to the second device.

[0378] Uplink awareness (the first device is a terminal and the second device is a base station) includes: signal configuration information of the first signal and / or signal configuration information of the second signal sent by the second device to the first device.

[0379] Inter-base station link sensing (the first device is base station 1 and the second device is base station 2), or side link sensing (the first device is terminal 1 and the second device is terminal 2), includes: signal configuration information of the sensing function network element sending the first signal and / or the second signal to the first device, and signal configuration information of the sensing function network element sending the first signal and / or the second signal to the second device.

[0380] The first device sends a first signal to the second device and receives a second signal sent by the second device; the second device receives the first signal sent by the first device and sends a second signal to the second device.

[0381] The first signal is sent by the first device and received by the second device, and is used to perform sensing to obtain sensing measurements.

[0382] The second signal is sent by the second device and received by the first device. It is used to perform round-trip measurements in conjunction with the first signal in order to extract or suppress the influence of timing start point deviation.

[0383] In some implementations, the first device determines the first data after receiving the second signal.

[0384] The first data is obtained by the first device through measurement of the second signal, and includes at least one of the following:

[0385] The difference between the reception time of the path or multiple paths with the highest power and the time when the first device sends the first signal, wherein the specific number of paths whose time differences are reported is configured by the network, and specific parameters may include: the reported time differences of each path and the power (or amplitude) of the path.

[0386] Time delay spectrum: The time delay spectrum of the second signal measured by the first device;

[0387] The result after threshold decision on the time delay spectrum: Set a threshold (e.g., 20dB), perform threshold decision on the power (or amplitude) of the time delay spectrum of the second signal measured by the first device, and report the part that exceeds the threshold;

[0388] Time-delay Doppler spectrum: The time-delay Doppler spectrum of the second signal obtained by the first device;

[0389] The result after threshold decision on the time-delay-Doppler spectrum: Set a threshold, perform threshold decision on the power (or amplitude) of the time-delay-Doppler spectrum of the second signal measured by the first device, and report the part that exceeds the threshold;

[0390] The parameters of one or more sensed targets detected include at least one of the following parameters for each sensed target: time delay, Doppler, power, or amplitude;

[0391] The time difference between the uplink and downlink timings of the first device. If the first device is a terminal, the uplink timing of the first device will be ahead of the downlink timing, and the first device may need to report this timing advance value. For example, in the case of sidelink sensing;

[0392] Port number, or associated SSB ID, or associated CSI-RS ID;

[0393] Timestamp: the time of transmission / reception of the first signal, and / or the time of transmission / reception of the second signal;

[0394] First timing adjustment information: The timing adjustment that occurs between the time when the first device sends the first symbol of the first signal and the time when the first device receives the second symbol of the second signal.

[0395] The first timing adjustment information can be represented as an integer multiple of Tc or Ts. Where Tc = 1 / (480kHz*4096), Ts = 1 / (15kHz*2048).

[0396] It should be noted that when the first device measures the received second signal, if the second signal includes multiple symbols, the time delay spectrum of the multiple symbols should be aligned to the time delay spectrum of the second symbol, and then the time delay spectrum, or the reception time of the strongest path or multiple paths and the time difference between the first device sending the first signal should be reported.

[0397] Correspondingly, when the second device measures the first signal, it also needs to align the time delay spectra of multiple symbols to the time delay spectrum of the first symbol before performing subsequent processing.

[0398] In other words, the first symbol or the second symbol can be understood as the time reference point of the first signal or the second signal, respectively. During round-trip measurements, the first signal or the second signal should be referenced to their respective time reference points to suppress timing start point deviations.

[0399] It should be noted that, in this embodiment, the measurement quantity reported by the first data does not necessarily need to correspond to the line of sight (LOS) path. That is, it can work under LOS conditions or under non-line of sight (NLOS) conditions.

[0400] In some implementations, the second device determines the second data after receiving the first signal.

[0401] The second data is obtained by the second device through measurement of the first signal, and includes at least one of the following:

[0402] Delay-Doppler spectrum: The delay-Doppler spectrum of the first signal measured by the second device;

[0403] The result after threshold decision on the time-delay-Doppler spectrum: Set a threshold, perform threshold decision on the power (or amplitude) of the time-delay-Doppler spectrum of the first signal measured by the second device, and report the part that exceeds the threshold;

[0404] The parameters of one or more sensed targets detected include at least one of the following parameters for each sensed target: time delay, Doppler, power, or amplitude;

[0405] The time difference between the uplink and downlink timings of the second device. If the second device is a terminal, the uplink timing of the second device will be ahead of the downlink timing, and the second device may need to report this timing advance value. For example, in the case of sidelink sensing;

[0406] Port number, or associated SSB ID, or associated CSI-RS ID;

[0407] Timestamp: the time of transmission / reception of the first signal, and / or the time of transmission / reception of the second signal;

[0408] Second, adjust the information at regular intervals.

[0409] In some implementations, the first device sends first data to the second device, and the second device determines the sensing result based on the first data and the first data.

[0410] The second device sends second data to the first device, and the first device determines the sensing result based on the first data and the second data.

[0411] The first device sends first data to the sensing function network element, and the second device sends second data to the sensing function network element. The sensing function network element determines the sensing result based on the first data and the second data.

[0412] Example 2:

[0413] In this embodiment, the first signal is used for sensing and measurement; the second signal is only used for round-trip measurement to cooperate with the first signal to eliminate timing start point deviation.

[0414] In this embodiment, the second signal can have fewer symbols, thereby enabling round-trip measurement with less time-frequency resource overhead to suppress timing start-point deviation. Here, "fewer symbols" means a number of symbols much smaller than that of the first signal. For example, if the first signal occupies 100 symbols in a comb-like manner, then the second signal can occupy 1, 2, 4, or other similar numbers of symbols.

[0415] Specifically, the symbols of the second signal can be multiple symbols that are consecutive in the time domain, or multiple symbols that are spaced out in a comb-like pattern. Generally, the first signal has a larger time span in the time domain; to satisfy the maximum unambiguous measurement range of Doppler, the first signal typically occupies M symbols in a comb-like pattern to reduce the number of resources it uses. In this respect, the second signal differs from the first signal.

[0416] In terms of temporal relationships, the second signal can precede the first signal entirely, such as... Figure 4 As shown in (a); the second signal can be sent entirely after the first signal, as in... Figure 4 As shown in (b); the second signal can precede the first signal, but the time spans overlap to some extent, such as Figure 4 As shown in (c); the second signal can follow the first signal, but the time spans overlap to some extent, such as... Figure 4 As shown in (d) in the figure; the time range of the second signal can also be within the time range of the first signal, as shown in 4(e) in the figure.

[0417] In some implementations, the first symbol is used to align the time delay spectrum of a plurality of symbols of the first signal, and the time delay spectrum of the aligned plurality of symbols of the first signal is used to determine the second data.

[0418] The second symbol is used to align the time delay spectrum of multiple symbols of the second signal, and the time delay spectrum of the aligned multiple symbols of the second signal is used to determine the first data.

[0419] When the first device receives the second signal and performs signal processing, it aligns the time delay spectra of multiple symbols of the second signal (if the second signal includes multiple symbols) to the second symbols; then, it performs coherent or incoherent combining of the time delay spectra of the multiple symbols to obtain the time delay spectrum of the second signal (denoted as the second time delay spectrum). The first device can then perform the following processing on this time delay spectrum:

[0420] The second time delay spectrum is directly reported as one of the first data items;

[0421] A threshold decision is made on the second time delay spectrum, and the portion exceeding the threshold is reported as an item in the first data.

[0422] One or more paths with the highest power in the second time delay spectrum are reported as one of the first data items.

[0423] When the second device receives the first signal and performs sensing signal processing, it aligns the time delay spectrum of the M symbols of the first signal to the first symbol; then it performs coherent or incoherent combining of the time delay spectra of the M symbols to obtain the time delay spectrum of the first signal (denoted as the first time delay spectrum). Alternatively, it may use only the time delay spectrum on the first symbol as the first time delay spectrum.

[0424] Based on the reciprocity of the channel, the first and second delay spectra are highly similar, except that there is a time offset between them due to the timing start point deviation and the signal transmission / reception direction. Figure 8 The image shows an example of the first and second time delay spectra obtained in a single test. Figure 8 The curve with the midpoint peak at the beginning represents the first time delay spectrum, and the curve with the midpoint peak at the end represents the second time delay spectrum.

[0425] After obtaining the first data and / or the second data, the timing start point deviation in the first signal can be suppressed by the following processing.

[0426] If the first data includes a second time delay spectrum or the result of threshold decision on the second time delay spectrum, the offset between the first and second time delay spectra in the time delay domain can be obtained through calculations (e.g., sliding correlation or cyclic correlation). Then, by combining the time difference (e.g., TA) between the uplink and downlink timing of the first device in the first data, the timing start point deviation on the first signal can be obtained or eliminated. For example, the offset of the first time delay spectrum relative to the second time delay spectrum is Δτ. 1,2 After suppressing the first starting point deviation, the correct first time delay spectrum is reduced or increased by the time delay value Δτ. 1,2 / 2+τ TA Or Δτ 1,2 / 2-τ TA , where τ TA This represents the time difference between the uplink timing and downlink timing of the first device and the time difference between the uplink timing and downlink timing of the second device, which is either the difference or the sum of the two. Whether to "subtract" or "add" and which of the two values ​​to use depends on the definition of the positive and negative polarities of the time difference between the uplink timing and downlink timing.

[0427] If the first data includes the time difference between the reception time of one or more paths with the highest power in the second delay spectrum and the time difference between the first signal and the transmission time of the first signal, then the second data may include the time difference between the reception time of one or more paths with the highest power in the first delay spectrum and the time difference between the transmission time of the second signal by the second device, thereby enabling the timing start point deviation in the first signal to be determined according to the RTT method.

[0428] For example, the transmission and reception sequence of the first and second signals is as follows: the first device transmits the first signal, the second device receives the first signal and then transmits the second signal at a predetermined time, and finally the first device receives the second signal. Then, the time difference between the reception time of one or more paths in the second signal included in the first data and the time difference between the first device transmitting the first signal is denoted as follows: The superscript '1' indicates the first device, and the numbers in parentheses are the path numbers. Correspondingly, the second device extracts the time difference between the reception time of each path in the first time delay spectrum and the time difference between the second device transmitting the second signal, and records them as follows: Therefore, the actual propagation time of path number 1 in space is The actual propagation time of path number 2 in space is And so on. Clearly, the difference between the time delay of each path in the first time delay spectrum and the corresponding actual propagation time is denoted as the timing start point deviation. The final timing start point deviation can be obtained by averaging the timing start point deviations extracted from multiple paths.

[0429] Another scenario involves the transmission and reception sequence of the first and second signals as follows: the second device sends the second signal, the first device receives the second signal and then sends the first signal at a predetermined time, and finally the second device receives the first signal. The specific principle is similar to that described in the previous paragraph and will not be repeated here.

[0430] Example 3:

[0431] In this embodiment, both the first and second signals are used for sensing and round-trip measurements. The second signal, in addition to suppressing timing start-point deviation, is also used for target detection and parameter estimation. Through the bidirectional sensing of the first and second signals for target detection and parameter estimation, timing start-point deviation is suppressed, while collaborative sensing also enhances sensing performance.

[0432] In this embodiment, the second signal has multiple symbols, enabling Doppler estimation based on these multiple symbols. Preferably, the second signal has the same number of symbols as the first signal, and the time interval between adjacent symbols in the second signal is the same as the time interval between adjacent symbols in the first signal.

[0433] For the same sensing target, in order to ensure that the first and second signals can estimate the same time delay and Doppler effect, the time spans of the first and second signals need to overlap as much as possible, such as... Figure 9 As shown.

[0434] When the first device receives the second signal and performs sensing signal processing, it aligns the time delay spectra of multiple symbols of the second signal to the second symbol; then, it performs an FFT along the time dimension (or symbol index dimension) to obtain the time delay-Doppler spectrum (denoted as the second time delay-Doppler spectrum). Based on the second time delay-Doppler spectrum, it performs sensing target detection and parameter estimation on the detected sensing targets to obtain information such as time delay, Doppler, and power of each sensing target. Then, the first device reports the obtained information such as time delay, Doppler, and power of each sensing target as part of the first data. In addition, the first data also needs to include the time difference (e.g., TA) between the uplink timing and downlink timing of the first device.

[0435] When the second device receives the first signal and performs sensing signal processing, it aligns the time delay spectrum of the M symbols of the first signal to the first symbol; then, it performs FFT along the time dimension (or symbol index dimension) to obtain the time delay-Doppler spectrum (denoted as the first time delay-Doppler spectrum). Based on the first time delay-Doppler spectrum, it performs sensing target detection and parameter estimation on the detected sensing targets to obtain information such as time delay, Doppler, and power of each sensing target.

[0436] After obtaining the time delay, Doppler effect, and power of one or more sensing targets extracted from the first time delay spectrum in the second data, and the time delay, Doppler effect, and power of one or more sensing targets extracted from the second time delay spectrum in the first data, as well as the time difference between the uplink and downlink timing of the first device, and combining this with the time difference between the uplink and downlink timing of the second device, the timing start point deviation contained in the time delay information of the one or more sensing targets can be determined. This allows obtaining the time delay value corresponding to the one or more sensing targets that is solely caused by spatial propagation. For example, for any sensing target, if the time delay value in the second data is τ1 and the time delay value in the first data is τ2, then the actual propagation time delay in space through the reflection path of the sensing target is (τ1+τ2) / 2, or the timing start point deviation of the second device relative to the first device is τ1-(τ1+τ2) / 2.

[0437] The data acquisition method provided in this application can be executed by a data acquisition device. This application uses an example of a data acquisition device executing the data acquisition method to illustrate the data acquisition device provided in this application.

[0438] The signal configuration method provided in this application can be executed by a signal configuration device. This application uses an example of a signal configuration device executing the signal configuration method to illustrate the signal configuration device provided in this application.

[0439] This application provides a data acquisition device. As an example, the data acquisition device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0440] This application provides a signal configuration device. As an example, the signal configuration device may be a communication device or a component within a communication device, such as a chip. The communication device may be a terminal, a network-side device, or a server, etc. Exemplarily, the terminal may include, but is not limited to, the type of terminal 11 listed above, and the network-side device may include, but is not limited to, the type of network-side device 12 listed above. This application does not impose specific limitations.

[0441] The data acquisition device or signal configuration device may include a receiving module, a transmitting module, and a processing module. These modules can be implemented in software or hardware. When implemented in hardware, the processing module can be implemented by a processor. For example, the processor may include a general-purpose processor, a special-purpose processor, such as a Central Processing Unit (CPU), a microprocessor, a Digital Signal Processor (DSP), an Artificial Intelligence (AI) processor, a Graphics Processing Unit (GPU), an Application Specific Integrated Circuit (ASIC), a Network Processor (NP), a Field Programmable Gate Array (FPGA), or other programmable logic devices, gate circuits, transistors, discrete hardware components, etc. The receiving and transmitting modules may be implemented by a communication interface, which may include one or more of the following: a transceiver, pins, circuits, a bus, and a radio frequency unit.

[0442] For details, see Figure 10When the data acquisition device is a terminal or a component within a terminal, or when the data acquisition device is a network-side device or a component within a network-side device, the data acquisition device 1000 includes:

[0443] The transmitting module 1001 is used to send a first signal to the second device, the first signal being used for sensing and measurement;

[0444] The receiving module 1002 is used to receive a second signal sent by the second device, the second signal being used to perform round-trip measurement in conjunction with the first signal, or the second signal being used for sensing measurement and performing round-trip measurement in conjunction with the first signal;

[0445] The processing module 1003 is used to determine first data based on the second signal, the first data being used to determine or suppress the timing start point deviation between the first device and the second device, or the first data being used to determine or suppress the timing start point deviation between the first device and the second device, and is also used to determine the sensing result.

[0446] Optionally, the first data includes at least one of the following:

[0447] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0448] The time delay spectrum of the second signal;

[0449] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0450] The time-delay-Doppler spectrum of the second signal;

[0451] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0452] Parameters of the perceived target;

[0453] The time difference between the uplink timing and the downlink timing of the first device;

[0454] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0455] The timestamp of the first signal;

[0456] The timestamp of the second signal;

[0457] First, adjust the information at regular intervals.

[0458] Optionally, the sending module 1001 is further configured to send the first data to the second device or the third device; or

[0459] The receiving module 1002 is further configured to receive second data sent by the second device, the second data being used to determine or suppress timing start point deviation between the first device and the second device, or the second data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result.

[0460] Optionally, the second data includes at least one of the following:

[0461] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0462] The time-delay Doppler spectrum of the first signal;

[0463] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0464] Parameters of the perceived target;

[0465] The time difference between the uplink timing and downlink timing of the second device;

[0466] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0467] The timestamp of the first signal;

[0468] The timestamp of the second signal;

[0469] Second, adjust the information at regular intervals.

[0470] Optionally, the transmitting module 1001 is further configured to transmit signal configuration information to the second device; or

[0471] The receiving module 1002 is also used to receive signal configuration information sent by the second device or the third device;

[0472] The signal configuration information includes at least one of the following:

[0473] Signal configuration information for the first signal and signal configuration information for the second signal.

[0474] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0475] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0476] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency interval between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency interval between adjacent subcarriers in the subcarrier occupied by the first signal.

[0477] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0478] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0479] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0480] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0481] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0482] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0483] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0484] The beam that transmits the second signal is the same beam that receives the first signal;

[0485] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0486] The port that transmits the second signal and the port that receives the first signal are QCL;

[0487] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0488] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0489] The second signal is a reference signal used for communication.

[0490] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0491] Time-frequency domain resource map information;

[0492] Resource sets or resource allocation in the time-frequency domain.

[0493] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0494] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0495] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0496] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0497] The aforementioned data acquisition device is beneficial for improving sensing performance.

[0498] The data acquisition device provided in this application embodiment can achieve... Figure 3 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0499] For details, see Figure 11 When the data acquisition device is a terminal or a component within a terminal, or when the data acquisition device is a network-side device or a component within a network-side device, the data acquisition device 1100 includes:

[0500] Receiver module 1101 is used to receive a first signal sent by the first device, the first signal being used for sensing and measurement;

[0501] The processing module 1102 is used to determine second data based on the first signal, the second data being used to determine or suppress the timing start point deviation between the first device and the second device, or the second data being used to determine or suppress the timing start point deviation between the first device and the second device, and is also used to determine the sensing result.

[0502] The transmitting module 1103 is used to transmit a second signal to the first device. The second signal is used to perform round-trip measurement in conjunction with the first signal, or the second signal is used for sensing measurement and to perform round-trip measurement in conjunction with the first signal.

[0503] Optionally, the second data includes at least one of the following:

[0504] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0505] The time-delay Doppler spectrum of the first signal;

[0506] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0507] Parameters of the perceived target;

[0508] The time difference between the uplink timing and downlink timing of the second device;

[0509] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0510] The timestamp of the first signal;

[0511] The timestamp of the second signal;

[0512] Second, adjust the information at regular intervals.

[0513] Optionally, the receiving module 1101 is further configured to receive first data sent by the first device, the first data being used to determine or suppress the timing start point deviation between the first device and the second device; or, the first data being used to determine or suppress the timing start point deviation between the first device and the second device, and further configured to determine the sensing result; or,

[0514] The sending module 1103 is also used to send the second data to the first device or the third device.

[0515] Optionally, the first data includes at least one of the following:

[0516] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0517] The time delay spectrum of the second signal;

[0518] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0519] The time-delay-Doppler spectrum of the second signal;

[0520] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0521] Parameters of the perceived target;

[0522] The time difference between the uplink timing and the downlink timing of the first device;

[0523] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0524] The timestamp of the first signal;

[0525] The timestamp of the second signal;

[0526] First, adjust the information at regular intervals.

[0527] Optionally, the receiving module 1101 is further configured to receive signal configuration information sent by the first device or the third device; or

[0528] The sending module 1103 is also used to send signal configuration information to the first device;

[0529] The signal configuration information includes at least one of the following:

[0530] Signal configuration information for the first signal and signal configuration information for the second signal.

[0531] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0532] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0533] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0534] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0535] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0536] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0537] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0538] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0539] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0540] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0541] The beam that transmits the second signal is the same beam that receives the first signal;

[0542] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0543] The port that transmits the second signal and the port that receives the first signal are QCL;

[0544] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0545] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0546] The second signal is a reference signal used for communication.

[0547] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0548] Time-frequency domain resource map information;

[0549] Resource sets or resource allocation in the time-frequency domain.

[0550] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0551] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0552] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0553] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0554] The aforementioned data acquisition device is beneficial for improving sensing performance.

[0555] The data acquisition device provided in this application embodiment can achieve... Figure 6 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0556] See Figure 12 When the signal configuration device is a terminal or a component within a terminal, or when the signal configuration device is a network-side device or a component within a network-side device, the signal configuration device 1200 includes:

[0557] Transmitting module 1201 is configured to transmit signal configuration information to at least one of a first device and a second device, wherein the signal configuration information includes at least one of the following:

[0558] Signal configuration information of the first signal and signal configuration information of the second signal;

[0559] Wherein, the first signal is used for sensing measurement, and the second signal is used to cooperate with the first signal for round-trip measurement, or the second signal is used for sensing measurement and cooperates with the first signal for round-trip measurement.

[0560] Optionally, the device further includes a receiving module, the receiving module being used for at least one of the following:

[0561] The device receives first data sent by the first device, the first data being used to determine or suppress timing start point deviation between the first device and the second device, or the first data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result.

[0562] The device receives second data sent by the second device, the second data being used to determine or suppress timing start point deviation between the first device and the second device, or the second data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result.

[0563] Optionally, the first data includes at least one of the following:

[0564] The first data includes at least one of the following:

[0565] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0566] The time delay spectrum of the second signal;

[0567] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0568] The time-delay-Doppler spectrum of the second signal;

[0569] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0570] Parameters of the perceived target;

[0571] The time difference between the uplink timing and the downlink timing of the first device;

[0572] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0573] The timestamp of the first signal;

[0574] The timestamp of the second signal;

[0575] First, adjust the information at regular intervals.

[0576] Optionally, the second data includes at least one of the following:

[0577] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0578] The time-delay Doppler spectrum of the first signal;

[0579] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0580] Parameters of the perceived target;

[0581] The time difference between the uplink timing and downlink timing of the second device;

[0582] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0583] The timestamp of the first signal;

[0584] The timestamp of the second signal;

[0585] Second, adjust the information at regular intervals.

[0586] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0587] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0588] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0589] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0590] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0591] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0592] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0593] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0594] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0595] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0596] The beam that transmits the second signal is the same beam that receives the first signal;

[0597] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0598] The port that transmits the second signal and the port that receives the first signal are QCL;

[0599] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0600] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0601] The second signal is a reference signal used for communication.

[0602] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0603] Time-frequency domain resource map information;

[0604] Resource sets or resource allocation in the time-frequency domain.

[0605] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0606] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0607] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0608] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0609] The aforementioned signal configuration device is beneficial for improving sensing performance.

[0610] The signal configuration device provided in this application embodiment can achieve... Figure 7 The various processes implemented in the method embodiments achieve the same technical effect, and will not be described again here to avoid repetition.

[0611] like Figure 13 As shown in the illustration, this application also provides a communication device 1300, including a processor 1301 and a memory 1302. The memory 1302 stores a program or instructions that can run on the processor 1301. For example, when the communication device 1300 is a first device, the program or instructions executed by the processor 1301 implement the various steps of the data acquisition method embodiment on the first device side described above, and achieve the same technical effect. When the communication device 1300 is a second device, the program or instructions executed by the processor 1301 implement the various steps of the data acquisition method embodiment on the second device side described above, and achieve the same technical effect. When the communication device 1300 is a third device, the program or instructions executed by the processor 1301 implement the various steps of the signal configuration method embodiment described above, and achieve the same technical effect. To avoid repetition, further details are omitted here.

[0612] This application embodiment also provides a device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, as shown in the example. Figure 3The steps in the method embodiment shown are illustrated. This device embodiment corresponds to the above data acquisition method embodiment, and all implementation processes and methods of the above method embodiments can be applied to this device embodiment and achieve the same technical effect. The device can be... Figure 10 The data acquisition device shown. Specifically, Figure 14 This is a schematic diagram of the hardware structure of a device according to an embodiment of this application. The device is a first device.

[0613] The device 1400 includes, but is not limited to, at least some of the following components: radio frequency unit 1401, network module 1402, audio output unit 1403, input unit 1404, sensor 1405, display unit 1406, user input unit 1407, interface unit 1408, memory 1409, and processor 1410.

[0614] Those skilled in the art will understand that the device 1400 may also include a power supply (such as a battery) for supplying power to various components. The power supply may be logically connected to the processor 1410 through a power management system, thereby enabling functions such as managing charging, discharging, and power consumption through the power management system. Figure 14 The device structure shown does not constitute a limitation on the device. The device may include more or fewer components than shown, or combine certain components, or have different component arrangements, which will not be elaborated here.

[0615] It should be understood that, in this embodiment, the input unit 1404 may include a graphics processor 14041 and a microphone 14042. The graphics processor 14041 processes image data of still images or videos obtained by an image capture device (such as a camera) in video capture mode or image capture mode. The display unit 1406 may include a display panel 14061, which may be configured in the form of a liquid crystal display, an organic light-emitting diode, or the like. The user input unit 1407 includes at least one of a touch panel 14071 and other input devices 14072. The touch panel 14071 is also called a touch screen. The touch panel 14071 may include a touch detection device and a touch controller. Other input devices 14072 may include, but are not limited to, physical keyboards, function keys (such as volume control buttons, power buttons, etc.), trackballs, mice, and joysticks, which will not be described in detail here.

[0616] In this embodiment, after receiving downlink data from the network-side device, the radio frequency unit 1401 can transmit it to the processor 1410 for processing; in addition, the radio frequency unit 1401 can send uplink data to the network-side device. Typically, the radio frequency unit 1401 includes, but is not limited to, antennas, amplifiers, transceivers, couplers, low-noise amplifiers, duplexers, etc.

[0617] The memory 1409 can be used to store software programs or instructions, as well as various data. The memory 1409 may primarily include a first storage area for storing programs or instructions and a second storage area for storing data. The first storage area may store the operating system, application programs or instructions required for at least one function (such as sound playback, image playback, etc.). Furthermore, the memory 1409 may include volatile memory or non-volatile memory. The non-volatile memory may be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. Volatile memory can be random access memory (RAM), static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct memory bus RAM (DRRAM). The memory 1409 in this embodiment includes, but is not limited to, these and any other suitable types of memory.

[0618] Processor 1410 may include one or more processing units; optionally, processor 1410 integrates an application processor and a modem processor, wherein the application processor mainly handles operations involving the operating system, user interface, and applications, and the modem processor mainly handles wireless communication signals, such as a baseband processor. It is understood that the aforementioned modem processor may also not be integrated into processor 1410.

[0619] The radio frequency unit 1401 is used to send a first signal to the second device, and the first signal is used for sensing and measurement.

[0620] The radio frequency unit 1401 is also used to receive a second signal sent by the second device, the second signal being used to perform round-trip measurement in conjunction with the first signal, or the second signal being used for sensing measurement and performing round-trip measurement in conjunction with the first signal;

[0621] The processor 1410 is configured to determine first data based on the second signal, the first data being configured to determine or suppress timing start point deviation between the first device and the second device, or the first data being configured to determine or suppress timing start point deviation between the first device and the second device, and is also configured to determine a sensing result.

[0622] Optionally, the first data includes at least one of the following:

[0623] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0624] The time delay spectrum of the second signal;

[0625] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0626] The time-delay-Doppler spectrum of the second signal;

[0627] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0628] Parameters of the perceived target;

[0629] The time difference between the uplink timing and the downlink timing of the first device;

[0630] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0631] The timestamp of the first signal;

[0632] The timestamp of the second signal;

[0633] First, adjust the information at regular intervals.

[0634] Optionally, the radio frequency unit 1401 is also used for:

[0635] Send the first data to the second or third device; or

[0636] The device receives second data sent by the second device, the second data being used to determine or suppress timing start point deviation between the first device and the second device, or the second data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result.

[0637] Optionally, the second data includes at least one of the following:

[0638] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0639] The time-delay Doppler spectrum of the first signal;

[0640] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0641] Parameters of the perceived target;

[0642] The time difference between the uplink timing and downlink timing of the second device;

[0643] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0644] The timestamp of the first signal;

[0645] The timestamp of the second signal;

[0646] Second, adjust the information at regular intervals.

[0647] Optionally, the radio frequency unit 1401 is also used for one of the following:

[0648] Send signal configuration information to the second device; or

[0649] Receive signal configuration information sent by the second or third device;

[0650] The signal configuration information includes at least one of the following:

[0651] Signal configuration information for the first signal and signal configuration information for the second signal.

[0652] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0653] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0654] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency interval between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency interval between adjacent subcarriers in the subcarrier occupied by the first signal.

[0655] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0656] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0657] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0658] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0659] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0660] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0661] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0662] The beam that transmits the second signal is the same beam that receives the first signal;

[0663] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0664] The port that transmits the second signal and the port that receives the first signal are QCL;

[0665] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0666] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0667] The second signal is a reference signal used for communication.

[0668] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0669] Time-frequency domain resource map information;

[0670] Resource sets or resource allocation in the time-frequency domain.

[0671] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0672] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0673] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0674] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0675] The aforementioned equipment is beneficial for improving sensing performance.

[0676] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the data acquisition method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0677] It should be noted that this embodiment uses the first device as the terminal for illustration. In this embodiment, the second device can also be a terminal, that is, the aforementioned terminal can also be implemented. Figure 6 The steps in the method shown.

[0678] This application embodiment also provides a device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, as shown in the example. Figure 6 The steps of the method embodiment shown are illustrated. This device embodiment corresponds to the data acquisition method embodiment described above. All implementation processes and methods of the above method embodiments can be applied to this device embodiment and achieve the same technical effects.

[0679] Specifically, this application also provides a device, which is a second device, and the device can be... Figure 11 The signal configuration device shown. For example... Figure 15 As shown, the device 1500 includes: an antenna 1501, a radio frequency (RF) device 1502, a baseband device 1503, a processor 1504, and a memory 1505. The antenna 1501 is connected to the RF device 1502. In the uplink direction, the RF device 1502 receives information through the antenna 1501 and transmits the received information to the baseband device 1503 for processing. In the downlink direction, the baseband device 1503 processes the information to be transmitted and sends it to the RF device 1502. The RF device 1502 processes the received information and transmits it through the antenna 1501.

[0680] The methods executed by the device in the above embodiments can be implemented in the baseband device 1503, which includes a baseband processor.

[0681] The baseband device 1503 may, for example, include at least one baseband board on which multiple chips are disposed, such as... Figure 15 As shown, one of the chips is, for example, a baseband processor, which is connected to the memory 1505 via a bus interface to call the program in the memory 1505 and execute the network device operation shown in the above method embodiment.

[0682] The device may also include a network interface 1506, such as a Common Public Radio Interface (CPRI).

[0683] Specifically, the device 1500 in this embodiment further includes: instructions or programs stored in memory 1505 and executable on processor 1504, wherein processor 1504 calls the instructions or programs in memory 1505 to execute. Figure 11 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0684] Radio frequency device 1502 is used to receive a first signal sent by a first device, the first signal being used for sensing and measurement;

[0685] The processor 1504 is configured to determine second data based on the first signal, the second data being used to determine or suppress a timing start point deviation between the first device and the second device, or the second data being used to determine or suppress a timing start point deviation between the first device and the second device, and is also used to determine a sensing result.

[0686] The radio frequency device 1502 is also used to send a second signal to the first device, the second signal being used to perform round-trip measurements in conjunction with the first signal, or the second signal being used to perform sensing measurements and round-trip measurements in conjunction with the first signal.

[0687] Optionally, the second data includes at least one of the following:

[0688] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0689] The time-delay Doppler spectrum of the first signal;

[0690] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0691] Parameters of the perceived target;

[0692] The time difference between the uplink timing and downlink timing of the second device;

[0693] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0694] The timestamp of the first signal;

[0695] The timestamp of the second signal;

[0696] Second, adjust the information at regular intervals.

[0697] Optionally, the radio frequency device 1502 is further configured to receive first data transmitted by the first device, the first data being used to determine or suppress a timing start point deviation between the first device and the second device; or, the first data being used to determine or suppress a timing start point deviation between the first device and the second device, and further configured to determine a sensing result; or,

[0698] The radio frequency device 1502 is also used to transmit the second data to the first device or the third device.

[0699] Optionally, the first data includes at least one of the following:

[0700] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0701] The time delay spectrum of the second signal;

[0702] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0703] The time-delay-Doppler spectrum of the second signal;

[0704] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0705] Parameters of the perceived target;

[0706] The time difference between the uplink timing and the downlink timing of the first device;

[0707] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0708] The timestamp of the first signal;

[0709] The timestamp of the second signal;

[0710] First, adjust the information at regular intervals.

[0711] Optionally, the radio frequency device 1502 is further configured to receive signal configuration information transmitted by the first device or the third device; or

[0712] The radio frequency device 1502 is also used to send signal configuration information to the first device;

[0713] The signal configuration information includes at least one of the following:

[0714] Signal configuration information for the first signal and signal configuration information for the second signal.

[0715] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0716] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0717] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0718] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0719] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0720] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0721] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0722] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0723] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0724] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0725] The beam that transmits the second signal is the same beam that receives the first signal;

[0726] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0727] The port that transmits the second signal and the port that receives the first signal are QCL;

[0728] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0729] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0730] The second signal is a reference signal used for communication.

[0731] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0732] Time-frequency domain resource map information;

[0733] Resource sets or resource allocation in the time-frequency domain.

[0734] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0735] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0736] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0737] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0738] The aforementioned equipment is beneficial for improving sensing performance.

[0739] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the data acquisition method embodiment and achieve the same or corresponding technical effect. To avoid repetition, it will not be described again here.

[0740] It should be noted that this embodiment uses the second device as a network-side device for illustration. In this application embodiment, the first device can also be a network-side device, that is, the aforementioned network-side device can also be implemented. Figure 3 The steps in the method shown.

[0741] This application embodiment also provides a device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement, as shown in the example. Figure 7 The steps of the method embodiment shown are illustrated. This device embodiment corresponds to the signal configuration method embodiment described above. All implementation processes and methods of the above method embodiments can be applied to this device embodiment and achieve the same technical effects.

[0742] Specifically, embodiments of this application also provide a network-side device, which is a third-party device. For example... Figure 16 As shown, the network-side device 1600 includes a processor 1601, a network interface 1602, and a memory 1603. The network interface 1602 is, for example, a common public radio interface (CPRI).

[0743] Specifically, the network-side device 1600 in this application embodiment further includes: instructions or programs stored in memory 1603 and executable on processor 1601, wherein processor 1601 calls the instructions or programs in memory 1603 to execute. Figure 12 The methods executed by each module shown achieve the same technical effect, and to avoid repetition, they will not be described in detail here.

[0744] The network interface 1602 is used to send signal configuration information to at least one of the first device and the second device, wherein the signal configuration information includes at least one of the following:

[0745] Signal configuration information of the first signal and signal configuration information of the second signal;

[0746] Wherein, the first signal is used for sensing measurement, and the second signal is used to cooperate with the first signal for round-trip measurement, or the second signal is used for sensing measurement and cooperates with the first signal for round-trip measurement.

[0747] Optionally, network interface 1602 is also used for at least one of the following:

[0748] The device receives first data sent by the first device, the first data being used to determine or suppress timing start point deviation between the first device and the second device, or the first data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result.

[0749] The device receives second data sent by the second device, the second data being used to determine or suppress timing start point deviation between the first device and the second device, or the second data being used to determine or suppress timing start point deviation between the first device and the second device, and also to determine the sensing result.

[0750] Optionally, the first data includes at least one of the following:

[0751] The first data includes at least one of the following:

[0752] The difference between the reception time of the one or more paths with the highest power in the second signal and the time when the first device transmits the first signal;

[0753] The time delay spectrum of the second signal;

[0754] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0755] The time-delay-Doppler spectrum of the second signal;

[0756] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0757] Parameters of the perceived target;

[0758] The time difference between the uplink timing and the downlink timing of the first device;

[0759] The information includes at least one of the following: the port number associated with the second signal, the synchronization signal block SSB, and the channel state information reference signal CSI-RS;

[0760] The timestamp of the first signal;

[0761] The timestamp of the second signal;

[0762] First, adjust the information at regular intervals.

[0763] Optionally, the second data includes at least one of the following:

[0764] The difference between the reception time of the one or more paths with the highest power in the first signal and the time when the second device transmits the second signal;

[0765] The time-delay Doppler spectrum of the first signal;

[0766] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0767] Parameters of the perceived target;

[0768] The time difference between the uplink timing and downlink timing of the second device;

[0769] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0770] The timestamp of the first signal;

[0771] The timestamp of the second signal;

[0772] Second, adjust the information at regular intervals.

[0773] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0774] The first signal and the second signal have the same bandwidth, and the frequency spacing between adjacent subcarriers occupied by the first signal is the same as the frequency spacing between adjacent subcarriers occupied by the second signal; or

[0775] The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers in the subcarrier occupied by the second signal is less than the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0776] Optionally, if the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency spacing between adjacent subcarriers occupied by the second signal is less than the frequency spacing between adjacent subcarriers occupied by the first signal:

[0777] Sampling the second signal in the frequency domain ensures that the sampled second signal has the same bandwidth as the first signal, and the frequency spacing between adjacent subcarriers in the subcarrier occupied by the sampled second signal is the same as the frequency spacing between adjacent subcarriers in the subcarrier occupied by the first signal.

[0778] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0779] The first symbol of the first signal and the second symbol of the second signal are within the same timing adjustment period; or

[0780] The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0781] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0782] The beam that transmits the first signal and the beam that receives the second signal are the same beam;

[0783] The beam that transmits the second signal is the same beam that receives the first signal;

[0784] The port that transmits the first signal and the port that receives the second signal are quasi-co-located (QCL).

[0785] The port that transmits the second signal and the port that receives the first signal are QCL;

[0786] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0787] Optionally, the second signal is a signal dedicated to round-trip measurements; or

[0788] The second signal is a reference signal used for communication.

[0789] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0790] Time-frequency domain resource map information;

[0791] Resource sets or resource allocation in the time-frequency domain.

[0792] Optionally, the signal configuration information of the first signal may further include the identifier of the second signal associated with the first signal; and / or

[0793] The signal configuration information of the second signal also includes the identifier of the first signal associated with the second signal.

[0794] Optionally, the signal configuration information of the first signal further includes: information about the first symbol of the first signal;

[0795] The signal configuration information of the second signal also includes: information about the second symbol of the second signal.

[0796] The aforementioned equipment is beneficial for improving sensing performance.

[0797] It is understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the signal configuration method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described again here.

[0798] This application also provides a readable storage medium storing a program or instructions. When the program or instructions are executed by a processor, they implement the various processes of the above-described data acquisition method or signal configuration method embodiments and achieve the same technical effect. To avoid repetition, they will not be described again here.

[0799] The processor mentioned above is the processor in the terminal described in the above embodiments. The readable storage medium includes computer-readable storage media, such as computer read-only memory (ROM), random access memory (RAM), magnetic disk, or optical disk. In some examples, the readable storage medium may be a non-transient readable storage medium.

[0800] This application embodiment also provides a chip, which includes a processor and a communication interface. The communication interface is coupled to the processor. The processor is used to run programs or instructions to implement the various processes of the above-described data acquisition method or signal configuration method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0801] It should be understood that the chip mentioned in the embodiments of this application may also be referred to as a system-on-a-chip, system chip, chip system, or system-on-a-chip, etc.

[0802] This application also provides a computer program / program product, which is stored in a storage medium and executed by at least one processor to implement the various processes of the above-described data acquisition method or signal configuration method embodiments, and can achieve the same technical effect. To avoid repetition, it will not be described again here.

[0803] This application also provides a wireless communication system, including: a first device and a second device, or including a first device, a second device and a third device. The first device can be used to perform the steps of the data acquisition method on the first device side as provided in the embodiments of this application, the first device can be used to perform the steps of the data acquisition method on the second device side as provided in the embodiments of this application, and the third device can be used to perform the steps of the signal configuration method as provided in the embodiments of this application.

[0804] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, it should be noted that the scope of the methods and apparatuses in the embodiments of this application is not limited to performing functions in the order shown or discussed, but may also include performing functions substantially simultaneously or in the reverse order, depending on the functions involved. For example, the described methods may be performed in a different order than described, and various steps may be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

[0805] From the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of computer software products plus necessary general-purpose hardware platforms, and of course, they can also be implemented by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes several instructions to cause the terminal or network-side device to execute the methods described in the various embodiments of this application.

[0806] The embodiments of this application have been described above with reference to the accompanying drawings. However, this application is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other implementations under the guidance of this application without departing from the spirit and scope of the claims. All of these implementations are within the protection scope of this application.

Claims

1. A data acquisition method, characterized by, The method comprises: a first device sending a first signal to a second device, the first signal being used for sensing measurement; the first device receiving a second signal sent by the second device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal; the first device determining first data based on the second signal, the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device and further being used for determining a sensing result.

2. The method of claim 1, wherein, The first data comprises at least one of: a difference between a time of receiving one or more paths with the highest power in the second signal and a time of sending the first signal by the first device; a time delay spectrum of the second signal; a time delay spectrum result after threshold decision on the time delay spectrum of the second signal; a time delay-Doppler spectrum of the second signal; a time delay-Doppler result after threshold decision on the time delay-Doppler spectrum of the second signal; a parameter of a sensing target; a time difference between uplink timing and downlink timing of the first device; information of at least one of a port number, a synchronization signal block (SSB) and a channel state information reference signal (CSI-RS) associated with the second signal; a time stamp of the first signal; a time stamp of the second signal; first timing adjustment information.

3. The method according to claim 1 or 2, characterized in that, The method further comprises: the first device sending the first data to the second device or a third device; or the first device receiving second data sent by the second device, the second data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the second data being used for determining or suppressing a timing starting point deviation between the first device and the second device and further being used for determining a sensing result.

4. The method of claim 3, wherein, The second data comprises at least one of: a difference between a time of receiving one or more paths with the highest power in the first signal and a time of sending the second signal by the second device; a time delay-Doppler spectrum of the first signal; a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the first signal; a parameter of a sensing target; a time difference between uplink timing and downlink timing of the second device; information of at least one of a port number, an SSB and a CSI-RS associated with the first signal; a time stamp of the first signal; a time stamp of the second signal; second timing adjustment information.

5. The method according to any one of claims 1 to 4, characterized in that, The method further comprises one of: the first device sending signal configuration information to the second device; or the first device receiving signal configuration information sent by the second device or a third device; The signal configuration information comprises at least one of: signal configuration information of the first signal and signal configuration information of the second signal.

6. The method of claim 5, wherein, The first signal and the second signal satisfy one of the following in the frequency domain: The bandwidths of the first signal and the second signal are the same, and the frequency interval between adjacent subcarriers occupied by the first signal is the same as the frequency interval between adjacent subcarriers occupied by the second signal; or The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency interval between adjacent subcarriers occupied by the second signal is smaller than the frequency interval between adjacent subcarriers occupied by the first signal.

7. The method of claim 6, wherein, In the case where the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency interval between adjacent subcarriers occupied by the second signal is smaller than the frequency interval between adjacent subcarriers occupied by the first signal: Sampling the second signal in the frequency domain can make the bandwidth of the sampled second signal the same as the bandwidth of the first signal, and the frequency interval between adjacent subcarriers occupied by the sampled second signal the same as the frequency interval between adjacent subcarriers occupied by the first signal.

8. The method according to any one of claims 1 to 7, characterized in that, The first signal and the second signal satisfy at least one of the following in the time domain: The first symbol of the first signal and the second symbol of the second signal are in the same timing adjustment period; or The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

9. The method according to any one of claims 1 to 8, characterized in that, The beams of the first signal and the beams of the second signal satisfy at least one of the following: The beam for transmitting the first signal and the beam for receiving the second signal are the same beam; The beam for transmitting the second signal and the beam for receiving the first signal are the same beam; The port for transmitting the first signal and the port for receiving the second signal are quasi co-located (QCL); The port for transmitting the second signal and the port for receiving the first signal are QCL; The first signal and the second signal are associated with the same SSB or CSI-RS.

10. The method according to any one of claims 1 to 9, characterized in that, The second signal is a signal dedicated for round trip measurement; or The second signal is a reference signal for communication.

11. The method according to any one of claims 5 to 10, characterized in that, The signal configuration information of at least one of the first signal and the second signal includes at least one of the following: time-frequency domain resource pattern information; resource set or resource configuration of time-frequency domain resources.

12. The method of claim 11, wherein, The signal configuration information of the first signal further includes the identification of the second signal associated with the first signal; and / or The signal configuration information of the second signal further includes the identification of the first signal associated with the second signal.

13. The method according to claim 11 or 12, characterized in that, The signal configuration information of the first signal further includes the information of the first symbol of the first signal. The signal configuration information of the second signal further includes the information of the second symbol of the second signal.

14. A data acquisition method characterized by, The method comprises: The second device receives the first signal sent by the first device, and the first signal is used for perception measurement; The second device determines second data based on the first signal, the second data is used for determining or inhibiting the timing starting point deviation between the first device and the second device, or the second data is used for determining or inhibiting the timing starting point deviation between the first device and the second device, and is also used for determining the perception result; The second device sends a second signal to the first device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal.

15. The method of claim 14, wherein, The second data includes at least one of: a difference between a time of receiving one or more paths with the highest power in the first signal and a time of sending the second signal by the second device; a time delay-Doppler spectrum of the first signal; a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the first signal; a parameter of a sensing target; a time difference between uplink timing and downlink timing of the second device; information of at least one of a port number, an SSB, and a CSI-RS associated with the first signal; a timestamp of the first signal; a timestamp of the second signal; second timing adjustment information.

16. The method according to claim 14 or 15, characterized in that The method further includes: The second device receives first data sent by the first device, the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device and further being used for determining a sensing result; or The second device sends the second data to the first device or a third device.

17. The method of claim 16, wherein, The first data includes at least one of: a difference between a time of receiving one or more paths with the highest power in the second signal and a time of sending the first signal by the first device; a time delay spectrum of the second signal; a time delay spectrum result after threshold decision on the time delay spectrum of the second signal; a time delay-Doppler spectrum of the second signal; a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal; a parameter of a sensing target; a time difference between uplink timing and downlink timing of the first device; information of at least one of a port number, an SSB, and a CSI-RS associated with the second signal; a timestamp of the first signal; a timestamp of the second signal; first timing adjustment information.

18. The method according to any one of claims 14 to 17, characterized in that, The method further includes one of: The second device receives signal configuration information sent by the first device or a third device; or The second device sends signal configuration information to the first device; The signal configuration information includes at least one of: signal configuration information of the first signal and signal configuration information of the second signal.

19. The method of claim 18, wherein, The first signal and the second signal satisfy one of the following in the frequency domain: The bandwidths of the first signal and the second signal are the same, and the frequency interval between adjacent subcarriers occupied by the first signal is the same as the frequency interval between adjacent subcarriers occupied by the second signal; or The bandwidth of the second signal is greater than the bandwidth of the first signal, and / or the frequency interval between adjacent subcarriers occupied by the second signal is less than the frequency interval between adjacent subcarriers occupied by the first signal.

20. The method of any one of claims 14 to 19, wherein, The first signal and the second signal satisfy at least one of the following in the time domain: The first symbol of the first signal and the second symbol of the second signal are in the same timing adjustment period; or The time interval or the difference in symbol index between the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

21. The method according to any one of claims 14 to 20, characterized in that, The beam of the first signal and the beam of the second signal satisfy at least one of the following: The beam for transmitting the first signal and the beam for receiving the second signal are the same beam; The beam for transmitting the second signal and the beam for receiving the first signal are the same beam; The port for transmitting the first signal and the port for receiving the second signal are quasi co-located (QCL); The port for transmitting the second signal and the port for receiving the first signal are QCL; The first signal and the second signal are associated with the same SSB or CSI-RS.

22. The method of any one of claims 18-21, wherein, The signal configuration information of at least one of the first signal and the second signal includes at least one of the following: Time-frequency domain resource pattern information; Resource set or resource configuration of time-frequency domain resources.

23. A signal configuration method, comprising: The method comprises: The third device sends signal configuration information to at least one of the first device and the second device, and the signal configuration information includes at least one of the following: Signal configuration information of the first signal and signal configuration information of the second signal; The first signal is used for sensing measurement, the second signal is used for round trip measurement in cooperation with the first signal, or the second signal is used for sensing measurement and round trip measurement in cooperation with the first signal.

24. The method of claim 23, wherein, The method further comprises at least one of the following: The third device receives first data sent by the first device, and the first data is used for determining or suppressing the timing starting point deviation between the first device and the second device, or the first data is used for determining or suppressing the timing starting point deviation between the first device and the second device and is also used for determining the sensing result; The third device receives second data sent by the second device, and the second data is used for determining or suppressing the timing starting point deviation between the first device and the second device, or the second data is used for determining or suppressing the timing starting point deviation between the first device and the second device and is also used for determining the sensing result.

25. The method of claim 24, wherein, The first data includes at least one of the following: The difference between the time of receiving the one or more paths with the highest power in the second signal and the time of sending the first signal by the first device; The time delay spectrum of the second signal; The time delay spectrum result after threshold decision on the time delay spectrum of the second signal; The time delay-Doppler spectrum of the second signal; The time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal; The parameters of the sensing target; The time difference between the uplink timing and the downlink timing of the first device; The information of at least one of the port number, the synchronization signal block (SSB), and the channel state information reference signal (CSI-RS) associated with the second signal; The timestamp of the first signal; The timestamp of the second signal; The first timing adjustment information.

26. The method of claim 24 or 25, wherein, The second data includes at least one of the following: The difference between the time of receiving the one or more paths with the highest power in the first signal and the time of sending the second signal by the second device; a time delay-Doppler spectrum of the first signal; a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the first signal; a parameter of a sensing target; a time difference between uplink timing and downlink timing of the second device; information of at least one of a port number, an SSB, and a CSI-RS associated with the first signal; a timestamp of the first signal; a timestamp of the second signal; second timing adjustment information.

27. A data acquisition device, comprising: Comprising: a sending module, configured to send a first signal to a second device, the first signal being used for sensing measurement; a receiving module, configured to receive a second signal sent by the second device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal; a processing module, configured to determine first data based on the second signal, the first data being used for determining or suppressing a timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing the timing starting point deviation between the first device and the second device and further used for determining a sensing result.

28. The apparatus of claim 27, wherein, the sending module is further configured to send the first data to the second device or a third device; or the receiving module is further configured to receive second data sent by the second device, the second data being used for determining or suppressing the timing starting point deviation between the first device and the second device, or the second data being used for determining or suppressing the timing starting point deviation between the first device and the second device and further used for determining a sensing result.

29. The apparatus of claim 27 or 28, wherein, the sending module is further configured to send signal configuration information to the second device; or the receiving module is further configured to receive signal configuration information sent by the second device or a third device; wherein the signal configuration information comprises at least one of the following: signal configuration information of the first signal, and signal configuration information of the second signal.

30. A data acquisition device, comprising: Comprising: a receiving module, configured to receive a first signal sent by a first device, the first signal being used for sensing measurement; a processing module, configured to determine second data based on the first signal, the second data being used for determining or suppressing a timing starting point deviation between the first device and a second device, or the second data being used for determining or suppressing the timing starting point deviation between the first device and the second device and further used for determining a sensing result; a sending module, configured to send a second signal to the first device, the second signal being used for round trip measurement in cooperation with the first signal, or the second signal being used for sensing measurement and round trip measurement in cooperation with the first signal.

31. The apparatus of claim 30, wherein, the receiving module is further configured to receive first data sent by the first device, the first data being used for determining or suppressing the timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing the timing starting point deviation between the first device and the second device and further used for determining a sensing result; or the sending module is further configured to send the second data to the first device or a third device.

32. The apparatus of claim 30 or 31, wherein, the receiving module is further configured to receive signal configuration information sent by the first device or a third device; or The sending module is further configured to send signal configuration information to the first device. The signal configuration information comprises at least one of the following: Signal configuration information of the first signal, and signal configuration information of the second signal.

33. An apparatus for signal configuration, comprising: The sending module is further configured to send signal configuration information to the first device. The signal configuration information comprises at least one of the following: Signal configuration information of the first signal, and signal configuration information of the second signal. The first signal is used for sensing measurement, the second signal is used for round trip measurement in cooperation with the first signal, or the second signal is used for sensing measurement and round trip measurement in cooperation with the first signal.

34. The apparatus of claim 33, wherein, The apparatus further comprises a receiving module configured to at least one of the following: Receive first data sent by the first device, the first data being used for determining or suppressing timing starting point deviation between the first device and the second device, or the first data being used for determining or suppressing timing starting point deviation between the first device and the second device and further being used for determining sensing result; Receive second data sent by the second device, the second data being used for determining or suppressing timing starting point deviation between the first device and the second device, or the second data being used for determining or suppressing timing starting point deviation between the first device and the second device and further being used for determining sensing result.

35. An apparatus comprising: The apparatus comprises a processor and a memory, the memory stores programs or instructions executable on the processor, the programs or instructions are executed by the processor to implement steps of the data acquisition method according to any one of claims 1 to 13, or the programs or instructions are executed by the processor to implement steps of the data acquisition method according to any one of claims 14 to 22, or the programs or instructions are executed by the processor to implement steps of the signal configuration method according to any one of claims 23 to 26.

36. A readable storage medium, characterized by, The readable storage medium stores programs or instructions, the programs or instructions are executed by the processor to implement steps of the data acquisition method according to any one of claims 1 to 13, or implement steps of the data acquisition method according to any one of claims 14 to 22, or implement steps of the signal configuration method according to any one of claims 23 to 26.

37. A computer program product, characterised in that, The computer program product is stored in a storage medium, and the computer program product is executed by at least one processor to implement steps of the data acquisition method according to any one of claims 1 to 13, or implement steps of the data acquisition method according to any one of claims 14 to 22, or implement steps of the signal configuration method according to any one of claims 23 to 26.

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