Data acquisition method and apparatus, signal configuration method and apparatus, and device

Abstract

The present application belongs to the technical field of communications. Disclosed are a data acquisition method and apparatus, a signal configuration method and apparatus, and a device. The data acquisition method in the embodiments of the present application comprises: a first device sending a first signal to a second device, wherein the first signal is used for sensing measurement; the first device receiving a second signal sent by the second device, wherein the second signal is used for cooperating with the first signal to perform round-trip measurement, or, the second signal is used for sensing measurement and cooperating with the first signal to perform round-trip measurement; the first device determining first data on the basis of the second signal, wherein the first data is used for determining or suppressing a timing start point deviation between the first device and the second device, or, the first data is used for determining or suppressing a timing start point deviation between the first device and the second device, and is also used for determining a sensing result.

Description

Data acquisition method, signal configuration method, device and equipment

[0001] Cross-reference to related applications

[0002] This application claims priority to the Chinese patent application No. 202411236600.8, filed on September 4, 2024, and entitled "Data acquisition method, signal configuration method, device and equipment", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application belongs to the field of communication technology, and specifically relates to a data acquisition method, a signal configuration method, a device and equipment. BACKGROUND

[0004] In a sensing scenario, the transmitter and receiver of a sensing signal generate local oscillator signals and clock signals from the frequency sources in their respective devices for the transmission and reception of the sensing signal. There can be a difference in the clock signals between the transmitters and receivers, and the difference in the clock signals leads to a timing starting point deviation, thereby limiting the sensing performance. SUMMARY

[0005] Embodiments of the present application provide a data acquisition method, a signal configuration method, a device and equipment, which can solve the problem that the timing starting point deviation between the transmitters and receivers of a sensing signal limits the sensing performance.

[0006] In a first aspect, a data acquisition method is provided, comprising:

[0007] A first device sends a first signal to a second device, the first signal being used for sensing measurement;

[0008] 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;

[0009] The first device determines first data based on the second signal, 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 also for determining a sensing result.

[0010] In a second aspect, a data acquisition method is provided, comprising:

[0011] A second device receives a first signal sent by a first device, the first signal being used for sensing measurement;

[0012] The second device determines 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 also being used to determine a sensing result;

[0013] The second device sends a second signal to the first device, the second signal being used to cooperate with the first signal to perform a round trip measurement, or the second signal being used to perform a sensing measurement and cooperate with the first signal to perform a round trip measurement.

[0014] In a third aspect, a signal configuration method is provided, comprising:

[0015] 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:

[0016] Signal configuration information of the first signal, signal configuration information of the second signal;

[0017] The first signal is used for a sensing measurement, the second signal is used to cooperate with the first signal to perform a round trip measurement, or the second signal is used to perform a sensing measurement and cooperate with the first signal to perform a round trip measurement.

[0018] In a fourth aspect, a data acquisition apparatus is provided, comprising:

[0019] The sending module is configured to send a first signal to a second device, the first signal being used for a sensing measurement;

[0020] The receiving module is configured to receive a second signal sent by the second device, the second signal being used to cooperate with the first signal to perform a round trip measurement, or the second signal being used to perform a sensing measurement and cooperate with the first signal to perform a round trip measurement;

[0021] The processing module is configured to determine first data based on the second signal, 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 also being used to determine a sensing result.

[0022] In a fifth aspect, a data acquisition apparatus is provided, comprising:

[0023] The receiving module is configured to receive a first signal sent by a first device, the first signal being used for a sensing measurement;

[0024] The processing module is configured to determine second data based on the first signal, the second data being used to determine or mitigate a timing start point deviation between the first device and a second device, or the second data being used to determine or mitigate a timing start point deviation between the first device and a second device and further used to determine a sensing result.

[0025] 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.

[0026] In a sixth aspect, a signal configuration apparatus is provided, comprising:

[0027] 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 comprising at least one of:

[0028] Signal configuration information of the first signal and signal configuration information of the second signal.

[0029] 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.

[0030] In a seventh aspect, a data acquisition apparatus is provided, the apparatus being configured to perform steps of a data acquisition method on a first device side as provided in embodiments of the present application.

[0031] In an eighth aspect, a data acquisition apparatus is provided, the apparatus being configured to perform steps of a data acquisition method on a second device side as provided in embodiments of the present application.

[0032] In a ninth aspect, a signal configuration apparatus is provided, the apparatus being configured to perform steps of a signal configuration method as provided in embodiments of the present application.

[0033] In a tenth aspect, a device is provided, comprising a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions being executed by the processor to implement steps of a data acquisition method on a first device side as provided in embodiments of the present application.

[0034] 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 mitigating a timing start point bias between the first device and the second device, or the first data being used for determining or mitigating the timing start point bias between the first device and the second device and further being used for determining a sensing result.

[0035] 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 steps of the data obtaining method on the second device side provided by the embodiments of the present application.

[0036] In a thirteenth aspect, a device is provided, which includes 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 for determining or mitigating a timing start point bias between the first device and the second device, or the second data being used for determining or mitigating the timing start point bias between the first device and the second device and further being used for determining a sensing result; and the communication interface is further 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.

[0037] In a fourteenth 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 steps of the signal configuration method provided by the embodiments of the present application.

[0038] In a fifteenth aspect, a device is provided, which includes 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 signal configuration information of a first signal and signal configuration information of a second signal, wherein 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.

[0039] In a sixteenth aspect, a readable storage medium is provided, and the readable storage medium stores a program or instructions, which, when executed by a processor, implement steps of the data acquisition method on the first device side, or implement steps of the data acquisition method on the second device side, or implement steps of the signal configuration method, according to embodiments of the present application.

[0040] In a seventeenth aspect, a wireless communication system is provided, and the wireless communication system includes a first device and a second device, or includes a first device, a second device and a third device, the first device is configured to implement steps of the data acquisition method on the first device side, the first device is configured to implement steps of the data acquisition method on the second device side, and the third device is configured to implement steps of the signal configuration method, according to embodiments of the present application.

[0041] In an eighteenth aspect, a chip is provided, and the chip includes a processor and a communication interface, the communication interface is coupled to the processor, and the processor is configured to run a program or instructions to implement the data acquisition method on the first device side, to implement the data acquisition method on the second device side, or to implement the signal configuration method, according to embodiments of the present application.

[0042] In a nineteenth aspect, a computer program / program product is provided, and the computer program / program product is stored in a storage medium, and the computer program / program product is executed by at least one processor to implement steps of the data acquisition method on the first device side, or the computer program / program product is executed by at least one processor to implement steps of the data acquisition method on the second device side, or the computer program / program product is executed by at least one processor to implement steps of the signal configuration method, according to embodiments of the present application.

[0043] In the embodiments of the present application, the first device sends a first signal to the 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 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 determines first data based on the second signal, 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 also being used for determining sensing result. In this way, since the first data is used for determining or suppressing timing starting point deviation between the first device and the second device, timing starting point deviation between the first device and the second device in a sensing scenario is determined or suppressed, which is beneficial to improving sensing performance. BRIEF DESCRIPTION OF DRAWINGS

[0044] FIG. 1 is a schematic diagram of a system provided by an embodiment of the present application;

[0045] FIG. 2a is a schematic diagram of a sensing measurement scenario provided by an embodiment of the present application;

[0046] FIG. 2b is a schematic diagram of timing deviation provided by an embodiment of the present application;

[0047] FIG. 3 is a flowchart of a data acquisition method provided by an embodiment of the present application;

[0048] FIG. 4 is a schematic diagram of time domain resource of a signal provided by an embodiment of the present application;

[0049] FIG. 5 is a schematic diagram of frequency domain resource of a signal provided by an embodiment of the present application;

[0050] FIG. 6 is a flowchart of another data acquisition method provided by an embodiment of the present application;

[0051] FIG. 7 is a flowchart of a signal configuration method provided by an embodiment of the present application;

[0052] FIG. 8 is a schematic diagram of time delay spectrum of a signal provided by an embodiment of the present application;

[0053] FIG. 9 is a schematic diagram of time domain resource of a signal provided by an embodiment of the present application;

[0054] FIG. 10 is a structural diagram of a data acquisition apparatus provided by an embodiment of the present application;

[0055] FIG. 11 is a structural diagram of another data acquisition apparatus provided by an embodiment of the present application;

[0056] FIG. 12 is a structural diagram of a signal configuration apparatus provided by an embodiment of the present application;

[0057] FIG. 13 is a structural diagram of a communication device according to an embodiment of the present application;

[0058] FIG. 14 is a structural diagram of a device according to an embodiment of the present application;

[0059] FIG. 15 is a structural diagram of another device according to an embodiment of the present application;

[0060] FIG. 16 is a structural diagram of another device according to an embodiment of the present application. DETAILED DESCRIPTION

[0061] The technical solutions in the embodiments of the present application will be clearly described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of them. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art belong to the scope of protection of the present application.

[0062] The terms "first", "second", and the like in the present application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present application can be implemented in an order other than that illustrated or described herein, and the objects distinguished by "first", "second" are usually a category and do not limit the number of objects, for example, the first object can be one or more. In addition, "or" in the present application means at least one of the connected objects. For example, the protection scope of "A or B" at least covers three schemes, namely, scheme one: including A and not including B; scheme two: including B and not including A; scheme three: including A and B. In addition, the terms "A and / or B", "at least one of A and B", "at least one of A or B" also at least cover the above three schemes, respectively. The character " / " generally represents that the objects before and after are in an "or" relationship.

[0063] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). The direct indication can be understood as that the sender explicitly informs the receiver of specific information, operations to be performed or requested results, etc. in the indication sent by the sender. The indirect indication can be understood as that the receiver determines the corresponding information according to the indication sent by the sender, or judges and determines the operations to be performed or the requested results according to the judgment result.

[0064] It is worth noting that the technology described in the embodiments of the present 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.

[0065] The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used in the above-mentioned systems and radio technologies, as well as in other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems. th

[0066] Figure 1 shows a block diagram of a wireless communication system to which the embodiments of the present application can be applied. The wireless communication system includes a terminal 11 and a network-side device 12.

[0067] ​The terminal 11 can be a terminal-side device such as a mobile phone, a Tablet Personal Computer, a Laptop Computer, a notebook computer, a Personal Digital Assistant (PDA), a palmtop computer, a netbook, an Ultra-mobile Personal Computer (UMPC), a Mobile Internet Device (MID), an Augmented Reality (AR) device, a Virtual Reality (VR) device, a robot, a wearable device, a flight vehicle, a Vehicle User Equipment (VUE), a shipboard device, a Pedestrian User Equipment (PUE), a smart home (a home device with a wireless communication function, such as a refrigerator, a television, a washing machine, or furniture), a game console, a Personal Computer (PC), a kiosk, or a self-service machine. The wearable device includes a smart watch, a smart bracelet, a smart earphone, smart glasses, smart jewelry (a smart bracelet, a smart necklace, a smart ring, a smart necklace, a smart anklet, a smart necklace, and the like), a smart wristband, smart clothing, and the like. The vehicle-mounted device can also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit. It should be noted that the specific type of the terminal 11 is not limited in the embodiments of the present application.

[0068] The network side device 12 can include an access network device or a core network device, wherein the access network device can also be referred to as a radio access network (RAN) device, a radio access network function, a radio access network unit, or a satellite. The access network device can include a base station, a wireless local area network (WLAN) access point (AP), or a wireless fidelity (WiFi) node, etc. Among them, the base station can be referred to as a node B (NB), an evolved node B (eNB), a next generation node B (gNB), a new radio node B (NR Node B), an access point, a relay base station (RBS), a serving base station (SBS), a base transceiver station (BTS), a radio base station, a radio transceiver, a basic service set (BSS), an extended service set (ESS), a home node B (HNB), a home evolved node B, a transmit / receive point (TRP), or some other suitable term in the art, as long as the same technical effect is achieved. The base station is not limited to a specific technical term, and it should be noted that in the embodiments of the present application, only the base station in the NR system is taken as an example for introduction, and the specific type of the base station is not limited.

[0069] The core network device can also be referred to as a core network node, a core network function, or a core network network element, etc., which includes but is not limited to at least one of the following: a mobility management entity (MME), an access and mobility management function (AMF), a session management function (SMF), a user plane function (UPF), a policy control function (PCF), a policy and charging rules function (PCRF), an edge application server discovery function (EASDF), a unified data management (UDM), a unified data repository (UDR), a home subscriber server (HSS), a centralized network configuration (CNC), a network repository function (NRF), a network exposure function (NEF), a local NEF (L-NEF), a binding support function (BSF), an application function (AF), a location management function (LMF), a gateway mobile location center (GMLC), a network data analytics function (NWDAF), etc. It should be noted that only the core network device in the NR system is taken as an example for introduction in the embodiments of the present application, and the specific type of the core network device is not limited. If the name of the core network device mentioned in the embodiments of the present application changes in the subsequent protocol version (for example, 6G), it is also within the protection scope of the present application.

[0070] Optionally, the core network device can be implemented by one or more function modules in one device, or can be implemented by multiple devices together, and the embodiments of the present application do not make a specific limitation here. It can be understood that the above function modules can be network elements in a hardware device, can be software function modules running on a special hardware, or can be virtualized function modules instantiated on a platform (for example, a cloud platform).

[0071] In some embodiments, future Beyond 5G (B5G) and 6G wireless communication systems are expected to provide various high-precision sensing services, such as indoor positioning for robot navigation, Wi-Fi sensing for smart home, and radar sensing for autonomous vehicles. Sensing and communication systems are usually designed separately and occupy different frequency bands. Integrated Sensing And Communication (ISAC) can enable sensing and communication systems to share the same frequency band and hardware, improve frequency efficiency, and reduce 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, indoor positioning and activity recognition based on Wi-Fi, communication and sensing for unmanned aircraft, extended reality (XR), radar and communication integration, etc. Each application has different requirements, limitations, and regulatory issues. ISAC has attracted great research interest and attention from academia and industry.

[0072] ISAC achieves the integration of communication and sensing dual functions at low cost through hardware device sharing and software-defined functions. The main features are: 1) unified and simplified architecture, 2) reconfigurable and extensible functions, 3) efficiency improvement and cost reduction. The advantages of integrated sensing and communication mainly include three aspects: 1) reduced device cost and size, 2) improved spectrum utilization, and 3) improved system performance.

[0073] Currently, typical communication and sensing integrated scenarios that are expected to be realized based on the technology upgrade of the 5G communication system architecture are shown in Table 1.

[0074] Table 1:

[0075] In some embodiments, according to the different perception signal sending nodes and receiving nodes, six kinds of perception links shown in FIG. 2a can be included, but are not limited to. It should be noted that each kind of perception link in FIG. 2a is exemplified by one sending node and one receiving node. In actual systems, different perception links can be selected according to different perception requirements. The sending node and the receiving node of each kind of perception link can be one or more, and the actual perception system can include multiple different perception links. The perception targets in FIG. 2a are exemplified by people and vehicles, and it is assumed that people and vehicles do not carry or install signal receiving / transmitting devices. The perception targets in actual scenarios will be more abundant.

[0076] Perception link 1: base station self-emission and self-reception perception. In this mode, the base station sends a perception signal and obtains a perception result by receiving the echo of the perception signal.

[0077] Perception link 2: inter-base station air interface perception. In this mode, base station 2 receives the perception signal sent by base station 1 and obtains a perception result.

[0078] Perception link 3: uplink air interface perception. In this mode, the base station receives the perception signal sent by the terminal and obtains a perception result.

[0079] Perception link 4: downlink air interface perception. In this mode, the terminal receives the perception signal sent by the base station and obtains a perception result.

[0080] Perception link 5: terminal self-emission and self-reception perception. In this mode, the terminal sends a perception signal and obtains a perception result by receiving the echo of the perception signal.

[0081] Perception link 6: inter-terminal sidelink perception. For example, terminal 2 receives the perception signal sent by terminal 1 and obtains a perception result, or terminal 1 receives the perception signal sent by terminal 2 and obtains a perception result.

[0082] It should be noted that each kind of perception mode in FIG. 2a is exemplified by one perception signal transmitter and one perception signal receiver. In actual systems, one or more different perception modes can be selected according to different perception use cases and perception requirements, and the transmitter and the receiver of each kind of perception mode can be one or more. The perception targets in FIG. 2a are exemplified by people and vehicles, and it is assumed that people and vehicles do not carry or install signal receiving / transmitting devices. The perception targets in actual scenarios will be more abundant.

[0083] In the six basic sensing modes shown in FIG. 2a, the base station-to-base station air interface sensing, the uplink air interface sensing, the downlink air interface sensing, the terminal-to-terminal sidelink sensing, and the like, the transmitter and receiver of the sensing signal belong to different devices; that is, the four sensing modes are double-station sensing. In the base station self-transmission and self-reception sensing and the terminal self-transmission and self-reception sensing, the transmitter and receiver of the sensing signal belong to the same device; that is, the two sensing modes are single-station sensing.

[0084] The double-station sensing does not require the device to have full-duplex capability, and the signal propagation characteristics are basically the same as those in the related communication system. Therefore, the double-station sensing can completely use the hardware and signal design in the related communication system, thereby truly realizing the integrated design of communication and sensing at a lower cost. In addition, the double-station sensing, especially the uplink air interface sensing or the downlink air interface sensing, can flexibly select the terminal device to perform sensing signal transmission or reception. If a terminal device close to the sensing target is selected, the signal propagation distance between the sensing target and the terminal is short, thereby obtaining a lower signal propagation path loss, and ultimately bringing a gain in the sensing signal power. Based on the above advantages, the double-station sensing mode has always been a hot spot in the research of communication and sensing integration.

[0085] However, the double-station sensing mode also has a huge challenge, that is, the time-frequency asynchronization problem between the transmitter and receiver of the sensing signal. The transmitter and receiver of the sensing signal use the frequency sources in the respective devices to generate the local oscillator signal and the clock signal for the transmission and reception of the sensing signal. The difference between the local oscillator signals and the clock signals of the transceiver causes the timing deviation. As shown in FIG. 2b, the timing deviation includes two parts: the timing starting point deviation (shown as τ strat in FIG. 2b) and the timing drift (shown as Δτ1, Δτ2, Δτ3, and the like in FIG. 2b). Among them, the timing starting point deviation is mainly caused by the overall deviation between the receiver clock and the transmitter clock of the sensing signal, and the effect is also the overall shift of the time delay spectrum. The timing drift is caused by the difference between the clock periods of the receiver clock and the transmitter clock of the sensing signal, and the timing drift on each OFDM symbol changes over time.

[0086] The data acquisition method, the signal configuration method, the device, and the apparatus provided by the embodiments of the present application will be described in detail below in combination with the drawings and some embodiments and application scenarios.

[0087] Please refer to FIG. 3, which is a flowchart of a data acquisition method provided by an embodiment of the present application. As shown in FIG. 3, the method includes the following steps:

[0088] Step 301: A first device sends a first signal to a second device, wherein the first signal is used for sensing measurement.

[0089] The first device can be a terminal or a network side device, and the second device can be a terminal or a network side device.

[0090] The first signal can be referred to as a sensing signal.

[0091] In step 302, 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.

[0092] The second signal is used for round trip measurement in cooperation with the first signal, and can also be used for sensing measurement.

[0093] In the embodiments of the present application, the round trip measurement can also be referred to as Round-Trip Time (RTT) measurement.

[0094] The execution order of step 301 and step 302 is not limited in the embodiments of the present application, and step 301 can be executed first and then step 302 can be executed, or step 302 can be executed first and then step 301 can be executed, that is, the sending order of the first signal and the second signal is not limited.

[0095] In step 303, the first device determines first data based on the second signal, 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 also being used for determining the sensing result.

[0096] The first data determined based on the second signal can be first data obtained by measuring the second signal, or the first data can be obtained based on the first signal and the second signal.

[0097] The suppression of the timing starting point deviation between the first device and the second device can be understood as eliminating the timing starting point deviation between the first device and the second device after determining the timing starting point deviation between the first device and the second device.

[0098] The first data used for determining or suppressing the timing starting point deviation between the first device and the second device can be understood as being able to determine or suppress the timing starting point deviation between the first device and the second device based on the first data in combination with the round trip measurement principle.

[0099] In the embodiments of the present application, the timing starting point deviation between the transceiving ends of the first signal and the second signal is estimated through round trip measurement. According to the radar “stop-jump” model, in a short time (for example, several milliseconds to tens of milliseconds), it can be considered that the motion state (position and speed) of the perceived target does not change, so for the same perceived target, the signal propagation delay obtained by the round trip measurement of the bidirectional transceiving of the first signal and the second signal between the transceiving ends of the signal is the same, and the absolute value of the timing starting point deviation is the same and the sign is opposite, so the first data obtained by the round trip measurement can determine or suppress the timing starting point deviation between the first device and the second device.

[0100] The timing starting point deviation between the first device and the second device described above can refer to the timing starting point deviation of the second device relative to the first device when the second device receives the first signal.

[0101] In the embodiments of the present application, since the first data is used to determine or suppress the timing starting point deviation between the first device and the second device, the timing starting point deviation between the first device and the second device in the perception scene is supported, which is beneficial to improve the perception performance.

[0102] As an optional implementation, the first data includes at least one of the following:

[0103] 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;

[0104] The time delay spectrum of the second signal;

[0105] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0106] The time delay-Doppler spectrum of the second signal;

[0107] The time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal;

[0108] The parameter of the perceived target;

[0109] The time difference between the uplink timing and the downlink timing of the first device;

[0110] 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;

[0111] The timestamp of the first signal;

[0112] a timestamp of the second signal;

[0113] the first timing adjustment information.

[0114] The one or more paths with the highest power in the second signal (which can also be referred to as signal paths) can be one or more paths with the highest power in a time delay profile of the second signal. In this case, the multiple paths with the highest power can be paths with the same received power, or the multiple paths can be paths with the highest received power in the second signal. The number of the multiple paths can be determined by a protocol or configured by a network device.

[0115] In some embodiments, the first data can further include the power (or amplitude) of the one or more paths in addition to the difference between the time.

[0116] The difference between the time of receiving the one or more paths with the highest power in the second signal and the time of transmitting the first signal by the first device can be used to determine or suppress the timing start point deviation between the first device and the second device. For example, the difference between the time of receiving the one or more paths with the highest power in the second signal and the time of transmitting the first signal by the first device, and the difference between the time of receiving the one or more paths with the highest power in the first signal and the time of transmitting the second signal by the second device can be used to determine or suppress the timing start point deviation between the first device and the second device by using the RTT method. For example, the first device transmits the first signal, the second device receives the first signal and then transmits the second signal at a predetermined time after receiving the first signal, and finally the first device receives the second signal. In this case, the first data includes the difference between the time of receiving the one or more paths with the highest power in the second signal and the time of transmitting the first signal by the first device, which is denoted as wherein the superscript '1' represents the first device, and the number in the parentheses represents the number of the path. Correspondingly, the second device extracts the difference between the time of receiving each path in the first signal and the time of transmitting the second signal, which is denoted as The real propagation time of the path numbered 1 in space is The real propagation time of the path numbered 2 in space is And so on. Obviously, the difference between the time delay of the one or more paths with the highest power in the second signal and the corresponding real propagation time is the timing start point deviation, or the timing start point deviations extracted from the multiple paths can be averaged to obtain the final timing start point deviation.

[0117] The time delay spectrum of the second signal is measured by the first device, and based on the time delay spectrum, 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 can be determined, and then based on 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 timing starting point deviation between the first device and the second device can be determined or inhibited. Alternatively, based on the time delay spectrum of the second signal, the offset between the time delay spectrum of the first signal and the time delay spectrum of the second signal in the time delay domain is obtained through calculation (for example, sliding correlation or cyclic correlation calculation), and then combined with the time difference between the uplink timing and the downlink timing of the first device, the timing starting point deviation between the first device and the second device can be determined or inhibited.

[0118] The time delay spectrum result after the threshold decision on the time delay spectrum of the second signal can be a 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 (for example, 20 dB, 25 dB, etc.), to determine the partial time delay spectrum exceeding the threshold.

[0119] The time delay spectrum result after the threshold decision on the time delay spectrum of the second signal can determine 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, and then based on 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 timing starting point deviation between the first device and the second device can be determined or inhibited.

[0120] The time delay spectrum result after the threshold decision on the time delay spectrum of the second signal can reduce the data amount of the first data, so as to save the calculation or reporting overhead.

[0121] The time delay-Doppler spectrum of the second signal is measured by the first device, and based on the time delay-Doppler spectrum, 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 can be determined, and then based on 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 timing starting point deviation between the first device and the second device can be determined or inhibited. Alternatively, based on the time delay-Doppler spectrum of the second signal, the offset between the time delay-Doppler spectrum of the first signal and the time delay-Doppler spectrum of the second signal in the time delay domain is obtained through calculation (for example, sliding correlation or cyclic correlation calculation), and then combined with the time difference between the uplink timing and the downlink timing of the first device, the timing starting point deviation between the first device and the second device can be determined or inhibited.

[0122] Since the time-delay-Doppler spectrum can make the first data include Doppler-related information, it can support obtaining timing or sensing-related information based on Doppler-related information, and is more conducive to improving sensing performance.

[0123] The time-delay-Doppler spectrum result after the threshold decision on the time-delay-Doppler spectrum of the second signal can be a 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 (for example, 20 dB, 25 dB, 30 dB, etc.), to determine the part of the time-delay-Doppler spectrum that exceeds the threshold.

[0124] The time-delay-Doppler spectrum after the threshold decision on the time-delay-Doppler spectrum of the second signal can reduce the data amount of the first data, thereby saving the calculation or reporting overhead.

[0125] The time difference between the uplink timing and the downlink timing of the first device can be a timing advance (TA) of the uplink timing of the first device relative to the downlink timing. In the case of the first device being a terminal, the first device can report the value of the timing advance.

[0126] Alternatively, the time difference between the uplink timing and the 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, wherein in the NR system, the time difference between the uplink timing and the downlink timing is defined as the timing advance.

[0127] The time difference between the uplink timing and the downlink timing of the first device can be used to determine or suppress the timing starting point deviation between the first device and the second device. For example, based on the time-delay-Doppler spectrum of the second signal, the time-delay-Doppler spectrum of the first signal is obtained by operation (for example, sliding correlation or cyclic correlation operation), and the offset of the time-delay-Doppler spectrum of the second signal in the time delay domain, combined with the time difference between the uplink timing and the downlink timing of the first device, the timing starting point deviation between the first device and the second device can be determined or suppressed.

[0128] The port number associated with the second signal can be the port number receiving the second signal, the SSB information can be the identifier of the SSB associated with the second signal, and the CSI-RS can be the identifier of the CSI-RS associated with the second signal.

[0129] The port number of the reported second signal helps to associate and pair the first signal and the second signal. Similarly, in addition to the port number, the associated SSB or CSI-RS can also be used to associate and pair the first signal and the second signal. For example, if the beam of the first device transmitting the first signal is associated with the beam of the first device receiving the second signal, and the same SSB or CSI-RS is associated, it can be considered that the transmitting beam of the first signal and the receiving beam of the second signal are the same, satisfying the association and pairing relationship described above. Through the association and pairing between the first signal and the second signal, the effect of determining or suppressing the timing starting point deviation between the first device and the second device can be better.

[0130] The timestamp of the first signal can represent at least one of the transmission time and the reception time of the first signal.

[0131] The timestamp of the second signal can represent at least one of the transmission time and the reception time of the second signal. In this way, based on the timestamp of the first signal and the timestamp of the second signal, the association relationship between the first signal and the second signal can be established, and it is ensured that the time interval between the transmission and reception time of the second signal corresponding to the first data and the transmission and reception time of the first signal corresponding to the second data meets the requirements.

[0132] The first timing adjustment information can be a timing adjustment occurring between the time of the first symbol of the first signal transmitted by the first device and the time of the second symbol of the second signal received by the first device. The representation of the first timing adjustment information can be an integer multiple of Tc or Ts, such as Tc = 1 / (480kHz*4096) and Ts = 1 / (15kHz*2048).

[0133] The first symbol can be at least one of the symbols occupied by the first signal, and the second symbol can be at least one of the symbols occupied by the second signal.

[0134] For example, the first signal contains M1 symbols, where the transmission time or symbol index of the first symbol (earliest transmission time) of the first signal 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) of the second signal is T3, and the transmission time or symbol index of the last symbol (latest transmission time) is T4. Here, M2≥1. Obviously, in the case of M2 = 1, T3 = T4.

[0135] In the case where T4 is less than T1, the transmission time of the second signal is earlier than the transmission time of the first signal as a whole, as shown in (a) of FIG. 4. At this time, the last symbol of the second signal is the second symbol, and the first symbol of the first signal is the first symbol.

[0136] In a case that T2 is less than T3, the transmission time of the second signal is later than the transmission time of the first signal as a whole, as shown in (b) of FIG. 4, and in this case, the first symbol of the second signal is the second symbol and the last symbol of the first signal is the first symbol.

[0137] In a case that T1 is greater than or equal to T3 and less than or equal to T4, and / or, T2 is greater than or equal to T3 and less than or equal to T4, the time span of the second signal overlaps with the time span of the first signal, as shown in (c) of FIG. 4, (d) of FIG. 4 and (e) of FIG. 4. In this case, in the overlapping interval of the second signal and the first signal, one OFDM symbol of the second signal is the second symbol and one OFDM symbol of the first signal is the first symbol.

[0138] It should be noted that in the embodiments of the present application, the symbol can refer to an OFDM symbol.

[0139] The first timing adjustment information helps to suppress the timing starting point deviation between the first device and the second device, or in the process of reporting the measurement quantity, the first timing adjustment information is reported, so that the device receiving the information suppresses the timing starting point deviation between the first device and the second device, so as to improve the sensing performance.

[0140] The parameters of the sensing target can be parameters of one or more sensing targets detected based on the second signal, and for each sensing target, at least one of the following parameters: time delay, Doppler, power or amplitude.

[0141] The parameters of the sensing target can be understood as parameters of the sensing target determined based on the first data in a case that the first data is used to determine the sensing result.

[0142] The parameters of the sensing target can be used to implement sensing measurement based on the second signal, so as to improve the sensing performance.

[0143] As an optional implementation, the first signal and the second signal satisfy at least one of the following in the time domain:

[0144] The first symbol of the first signal and the second symbol of the second signal are in the same timing adjustment period; or

[0145] The difference between the time interval or the symbol index of the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0146] The first symbol and the second symbol can refer to the corresponding description of the above embodiments.

[0147] The first symbol of the first signal and the second symbol of the second signal being in 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 in the same timing adjustment period. In this way, the first symbol of the first signal and the second symbol of the second signal are in the same timing adjustment period, so that the reporting of the timing adjustment information is not required.

[0148] The preset threshold can be agreed upon by a protocol or configured by a network side device.

[0149] Since 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 the preset threshold, the influence of the 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 starting point deviation between the first device and the second device.

[0150] As an optional implementation, the method further comprises:

[0151] The first device sends the first data to the second device or a third device; or

[0152] The first device receives second data sent by the second device, the second data being used to determine or suppress the timing starting point deviation between the first device and the second device, or the second data being used to determine or suppress the timing starting point deviation between the first device and the second device and also being used to determine the sensing result.

[0153] The third device can be a terminal or a network side device, and in some implementations, the third device can be a sensing function (Sensing Function) network element, also referred to as a sensing network element or a sensing network function, which can be located at the RAN side or the core network side. The sensing function network element refers to a network node responsible for at least one of sensing request processing, sensing resource scheduling, sensing information interaction, sensing data processing, etc. in the core network and / or RAN, and can be an upgrade based on the AMF or LMF in the 5G network, or other network nodes or newly defined network nodes. Specifically, the function characteristics of the sensing function network element can include at least one of the following:

[0154] Interacting with a wireless signal sending device and / or a wireless signal measuring device (including a target terminal or a serving base station of the target terminal or a base station associated with a target area) to obtain a target sensing result or a value of a sensing measurement quantity (uplink measurement quantity or downlink measurement quantity) sent by the wireless signal measuring device, wherein the target information includes a sensing processing request, a sensing capability, sensing auxiliary data, a sensing measurement quantity type, and sensing resource configuration information, and the wireless signal can also be referred to as a sensing signal.

[0155] The sensing method used is determined according to the type of the sensing service, information of the sensing service consumer, required sensing QoS requirement information, sensing capability of the wireless signal transmitting device, sensing capability of the wireless signal measuring device, and other factors, and the sensing method can include: base station A transmitting and base station B receiving, or base station transmitting and terminal receiving, or base station A self-transmitting and self-receiving, or terminal transmitting and base station receiving, or terminal self-transmitting and self-receiving, or terminal A transmitting and terminal B receiving, and the like;

[0156] The sensing device serving the sensing service is determined according to the type of the sensing service, information of the sensing service consumer, required sensing QoS requirement information, sensing capability of the wireless signal transmitting device, sensing capability of the wireless signal measuring device, and other factors, and the sensing device includes the wireless signal transmitting device and / or the wireless signal measuring device;

[0157] Overall coordination and scheduling of resources required for the sensing service are managed, such as corresponding configuration of sensing resources of the base station and / or the terminal;

[0158] Data processing is performed on the value of the sensing measurement quantity, or a sensing result is obtained by calculation. Further, the sensing result is verified, and the sensing accuracy is estimated.

[0159] The first device sends the first data to the second device or the third device, so that the second device or the third device determines or suppresses the timing starting point deviation between the first device and the second device based on the first data, or the second device or the third device determines or suppresses the timing starting point deviation between the first device and the second device based on the first data and the second data.

[0160] The second data is data determined by the second device based on the first signal.

[0161] In the case where the first device receives the second data sent by the second device, the first device determines or suppresses the timing starting point deviation between the first device and the second device based on the first data and the second data.

[0162] In some embodiments, the second data includes at least one of:

[0163] The difference between the time of receiving the one or more paths with the highest power in the first signal and the time when the second device sends the second signal;

[0164] The time delay-Doppler spectrum of the first signal;

[0165] The time delay-Doppler spectrum result after threshold decision is made on the time delay-Doppler spectrum of the first signal;

[0166] The parameter of the sensing target;

[0167] a time difference between uplink timing and downlink timing of the second device;

[0168] information of at least one of port number, SSB, CSI-RS associated with the first signal;

[0169] a timestamp of the first signal;

[0170] a timestamp of the second signal;

[0171] second timing adjustment information.

[0172] The second data includes content as described in the first data, which will not be repeated here. The content included in the second data can be combined with the first data to determine or suppress the timing starting point deviation between the first device and the second device. For details, see the corresponding description of the embodiments of the first data above, which will not be repeated here.

[0173] The second timing adjustment information can be a timing adjustment that occurs between the time of the first symbol of the first signal received by the second device and the time of the second symbol of the second signal sent by the second device.

[0174] The second timing adjustment information helps to suppress the timing starting point deviation between the first device and the second device. In the process of reporting the measurement quantity, the second timing adjustment information is reported, so that the device receiving the information suppresses the timing starting point deviation between the first device and the second device, thereby improving the sensing performance.

[0175] The parameters of the sensing target can be one or more parameters of the sensing target detected by the second device based on the first signal. For each sensing target, at least one of the following parameters is included: time delay, Doppler, power or amplitude, wherein the parameters can be sensing measurement quantities.

[0176] The parameters of the sensing target can be understood as parameters of the sensing target determined according to the first data in the case where the first data is used to determine the sensing result.

[0177] The parameters of the sensing target can be used to perform sensing measurement based on the first signal, thereby improving the sensing performance.

[0178] As an optional embodiment, the method further includes one of the following:

[0179] The first device sends signal configuration information to the second device; or

[0180] The first device receives signal configuration information sent by the second device or the third device;

[0181] The signal configuration information includes at least one of the following:

[0182] The signal configuration information of the first signal and the signal configuration information of the second signal.

[0183] The first device sends the signal configuration information to the second device, which can be that the first device is a network side device.

[0184] The first device receives the signal configuration information sent by the second device or the third device, which can be that the first device is a terminal or a network side device.

[0185] The signal configuration information can be used for round trip measurement between the first device and the second device through the first signal and the second signal, so as to determine or suppress the timing starting point deviation between the first device and the second device, and further improve the sensing performance.

[0186] It should be noted that, in the case where 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 can be pre-configured or agreed by protocol, or both the signal configuration information of the first signal and the signal configuration information of the second signal can be pre-configured or agreed by protocol.

[0187] In some embodiments, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0188] Time-frequency domain resource pattern information;

[0189] Resource set (ResourceSet) or resource (Resource) configuration of time-frequency domain resource.

[0190] The time-frequency domain resource pattern information can be an identifier of a time-frequency domain resource pattern.

[0191] The resource set or resource configuration of the time-frequency domain resource can be an identifier of a resource set of time-frequency domain resource or a resource identifier.

[0192] In some embodiments, the resource set or resource configuration of the time-frequency domain resource includes at least one of the following:

[0193] Starting position of the first signal or the second signal in time domain;

[0194] Duration of the first signal or the second signal in time domain, such as the time length between the sensing symbol with the smallest index and the sensing symbol with the largest index in the resource set;

[0195] a perceived gap between symbols;

[0196] a perceived number of symbols;

[0197] a perceived density of symbols;

[0198] a perceived repetition period of time slots in time domain where the symbols are located;

[0199] a perceived location of the symbols within the time slots where the symbols are located;

[0200] a perceived distribution of locations of the symbols in time domain;

[0201] a perceived starting location of the first signal or the second signal in frequency domain;

[0202] a perceived bandwidth of the first signal or the second signal in frequency domain, which is the bandwidth between the smallest indexed perceived subcarrier and the largest indexed perceived subcarrier in the resource set;

[0203] a perceived density of perceived subcarriers;

[0204] a perceived repetition period of resource blocks (RBs) in frequency domain where the perceived subcarriers are located;

[0205] a perceived location of the perceived subcarriers within the RBs where the perceived subcarriers are located;

[0206] a perceived location of the RBs in frequency domain where the perceived subcarriers are located, e.g., represented by a bitmap;

[0207] a perceived distribution of locations of the perceived subcarriers in frequency domain;

[0208] For a resource set, a list or an identification of resources included in the resource set can also be included.

[0209] wherein the perceived symbols refer to symbols used for performing sensing service, which can be dedicated to sensing service or shared by sensing service and communication service; and the perceived subcarriers refer to subcarriers used for performing sensing service, which can be dedicated to sensing service or shared by sensing service and communication service.

[0210] In some embodiments, the signal configuration information of at least one of the first signal and the second signal can further include at least one of:

[0211] a transmit power, which can be an energy per RE (EPRE) or a power offset relative to a certain reference signal, e.g., 3dB relative to a certain identified SSB;

[0212] Beam information, which can be a beam direction, or other reference signal association of the same beam direction, such as the same beam direction as a certain identified SSB, and the identification of the SSB is given, and the Quasi co-location (QCL) relationship is given.

[0213] In some embodiments, the signal configuration information of the first signal further comprises an identification of the second signal associated with the first signal.

[0214] The second signal for round trip measurement with the first signal can be determined by the above identification. In some embodiments, the relationship between the second signal and the first signal can be pre-configured, i.e., the signal configuration information can not include the identification of the second signal associated with the first signal.

[0215] In some embodiments, the signal configuration information of the second signal further comprises an identification of the first signal associated with the second signal.

[0216] The first signal for round trip measurement with the second signal can be determined by the above identification. In some embodiments, the relationship between the second signal and the first signal can be pre-configured, i.e., the signal configuration information can not include the identification of the first signal associated with the second signal.

[0217] In some embodiments, the signal configuration information of the first signal further comprises information of a first symbol of the first signal.

[0218] The signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0219] The information of the first symbol can be a symbol index of the first symbol in the first signal.

[0220] The information of the second symbol can be a symbol index of the second symbol in the second signal.

[0221] The first symbol and the second symbol are described in the corresponding description of the above embodiments, which will not be repeated here.

[0222] Due to the information of the first symbol and the second symbol, more accurate timing adjustment information can be determined based on the information, such as determining the first timing adjustment information or the second timing adjustment information, to improve the accuracy of determining or suppressing the timing starting point deviation between the first device and the second device, and to further improve the sensing performance.

[0223] In some embodiments, the first signal and the second signal satisfy one of the following in the frequency domain:

[0224] 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

[0225] 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.

[0226] The bandwidth of a signal determines the resolution of time delay, and the frequency interval between adjacent subcarriers occupied by the signal determines the maximum unambiguous range of time delay. In the above implementation, since the bandwidths of the first signal and the second signal are the same, and the frequency intervals between adjacent subcarriers are the same, the first signal and the second signal have the same time delay resolution and the same maximum unambiguous range of time delay, so as to improve the reliability of the round-trip measurement.

[0227] The bandwidth of the second signal being greater than the bandwidth of the first signal and / or the frequency interval between adjacent subcarriers occupied by the second signal being less than the frequency interval between adjacent subcarriers occupied by the first signal can be understood as that the first signal and the second signal satisfy at least one of the following in the frequency domain:

[0228] The bandwidth of the second signal is greater than the bandwidth of the first signal.

[0229] 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.

[0230] The bandwidth of the second signal being greater than the bandwidth of the first signal and / or the frequency interval between adjacent subcarriers occupied by the second signal being less than the frequency interval between adjacent subcarriers occupied by the first signal can also make the value of the time delay resolution of the second signal less than the data of the time delay resolution of the second signal, the maximum unambiguous range of time delay of the second signal greater than the maximum unambiguous range of time delay of the first signal, and in some implementations, the above-mentioned round-trip measurement can also be performed.

[0231] In some implementations, 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 less than the frequency interval between adjacent subcarriers occupied by the first signal:

[0232] Sampling the second signal in the frequency domain can make the bandwidths of the sampled second signal and the first signal same, and the frequency interval between adjacent subcarriers occupied by the sampled second signal same as the frequency interval between adjacent subcarriers occupied by the first signal.

[0233] The sampling of the second signal in the frequency domain can refer to extracting part of the frequency domain resource in the frequency domain resource occupied by the second signal to obtain the second signal transmitted by the part of the frequency domain resource, or can refer to cutting part of the bandwidth of the first signal on the frequency domain of the second signal.

[0234] In this embodiment, the bandwidths of the first signal and the second signal can be made same by sampling, and the frequency intervals between adjacent subcarriers can be made same, so as to improve the reliability of the round trip measurement.

[0235] For example, the bandwidth of the first signal is a first bandwidth (denoted as B1), the number of subcarriers occupied by the first signal is a first number (denoted as N1), and the frequency interval between adjacent subcarriers occupied by the first signal is a first frequency interval (denoted as Δ1). Wherein, the first bandwidth is the frequency interval between the subcarrier with the lowest frequency and the subcarrier with the highest frequency in the subcarriers occupied by the first signal; thus Here represents rounding up.

[0236] The bandwidth of the second signal is a second bandwidth (denoted as B2), the number of subcarriers occupied by the second signal is a second number (denoted as N2), and the frequency interval between adjacent subcarriers occupied by the second signal is a second frequency interval (denoted as Δ2). Wherein, the second bandwidth is the frequency interval between the subcarrier with the lowest frequency and the subcarrier with the highest frequency in the subcarriers occupied by the second signal; thus Here represents rounding up.

[0237] The first signal and the second signal satisfy one of the following in the frequency domain:

[0238] The first signal and the second signal have the same bandwidth, i.e., the first bandwidth B1 is equal to the second bandwidth B2, and the frequency interval between adjacent subcarriers occupied by the first signal is same as the frequency interval between adjacent subcarriers occupied by the second signal, i.e., the first frequency interval Δ1 is equal to the second frequency interval Δ2.

[0239] The bandwidth of the second signal being greater than the bandwidth of the first signal can mean that the second bandwidth B2 is greater than the first bandwidth B1, 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, i.e. the second frequency interval Δ2 is less than the first frequency interval Δ1; and it is satisfied that the same bandwidth and the same frequency interval between adjacent subcarriers of the first signal and the second signal can be achieved by sampling the second signal in the frequency domain.

[0240] It is easy to understand that there are a total number of subcarriers greater than or equal to N1 within the first bandwidth B1, and the first signal occupies N1 subcarriers in a comb form, and there are a total number of subcarriers greater than or equal to N2 within the second bandwidth B2, and the second signal occupies N2 subcarriers in a comb form, which can be specifically shown in FIG. 5.

[0241] The subcarrier interval of the first signal and the subcarrier interval of the second signal can be the same or different, as shown in the case 1 of the second signal in FIG. 5, which is the case that the subcarrier interval of the second signal is the same as that of the first signal, and the case 2 of the second signal, which is the case that the subcarrier interval of the second signal is different from that of the first signal; it is easy to see that in both cases, the first bandwidth and the second bandwidth are the same, and the first frequency interval and the second frequency interval are the same.

[0242] As an optional implementation, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0243] The beam for transmitting the first signal and the beam for receiving the second signal are the same beam;

[0244] The beam for transmitting the second signal and the beam for receiving the first signal are the same beam;

[0245] The port for transmitting the first signal and the port for receiving the second signal are QCL;

[0246] The port for transmitting the second signal and the port for receiving the first signal are QCL;

[0247] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0248] In this implementation, since the beam for transmitting the first signal and the beam for receiving the second signal are the same beam, the round trip measurement is performed based on the same beam, so that the round trip measurement can be performed according to 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 perception performance.

[0249] In this embodiment, since the beam for transmitting the second signal is the same as the beam for receiving the first signal, the round trip measurement is performed based on the same beam, so that the round trip measurement is performed based on the first signal and the second signal to determine or suppress the timing starting point deviation between the first device and the second device, thereby improving the final perception performance.

[0250] In this embodiment, since the port for transmitting the first signal is QCL with the port for receiving the second signal, the round trip measurement is performed based on the QCL relationship, so that the round trip measurement is performed based on the first signal and the second signal to determine or suppress the timing starting point deviation between the first device and the second device, thereby improving the final perception performance.

[0251] 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, so that the round trip measurement is performed based on the first signal and the second signal to determine or suppress the timing starting point deviation between the first device and the second device, thereby improving the final perception performance.

[0252] As an optional embodiment, the second signal is a signal dedicated for round trip measurement.

[0253] In this embodiment, since the beam for transmitting the first signal is the same as the beam for receiving the second signal, the round trip measurement is performed based on the same beam, so that the round trip measurement is performed based on the first signal and the second signal to determine or suppress the timing starting point deviation between the first device and the second device, thereby improving the final perception performance.

[0254] As an optional embodiment, the second signal is a reference signal for communication.

[0255] The reference signal for communication can be a positioning reference signal (PRS), a channel state information reference signal (CSI-RS), a sounding reference signal (SRS), or a demodulation reference signal (DMRS).

[0256] In this embodiment, the second signal is a reference signal for communication. This can avoid introducing a new signal, thereby saving the signal overhead.

[0257] In the embodiment of the present application, the first device sends a first signal to the 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 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 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 also being used for determining a sensing result. In this way, since the first data is used for determining or suppressing the timing starting point deviation between the first device and the second device, the timing starting point deviation between the first device and the second device is determined or suppressed in a sensing scenario, which is beneficial to improving sensing performance.

[0258] Please refer to FIG. 6, which is a flow chart of a data acquisition method according to an embodiment of the present application. As shown in FIG. 6, the method comprises the following steps:

[0259] In step 601, the second device receives a first signal sent by the first device, the first signal being used for sensing measurement.

[0260] In step 602, 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 also being used for determining a sensing result.

[0261] In step 603, 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.

[0262] It should be noted that the execution order of step 602 and step 603 is not limited in the embodiment of the present application. As shown in FIG. 6, step 602 is executed first and then step 603 is executed. Alternatively, step 602 and step 603 can be executed simultaneously, or step 603 is executed first and then step 602 is executed. For example, when the second data is determined, the second data can be determined based on the first signal and the second signal.

[0263] In the embodiment, since the second data is used for determining or suppressing the timing starting point deviation between the first device and the second device, the timing starting point deviation between the first device and the second device is determined or suppressed in a sensing scenario, which is beneficial to improving sensing performance.

[0264] Optionally, the second data comprises at least one of the following:

[0265] 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;

[0266] The time-delay Doppler spectrum of the first signal;

[0267] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the first signal;

[0268] Parameters of the perceived target;

[0269] The time difference between the uplink timing and downlink timing of the second device;

[0270] Information on at least one of the following: the port number associated with the first signal, SSB, and CSI-RS;

[0271] The timestamp of the first signal;

[0272] The timestamp of the second signal;

[0273] Second, adjust the information at regular intervals.

[0274] Optionally, the method further includes:

[0275] 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...

[0276] The second device sends the second data to the first device or the third device.

[0277] Optionally, the first data includes at least one of the following:

[0278] 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;

[0279] The time delay spectrum of the second signal;

[0280] The time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0281] The time-delay-Doppler spectrum of the second signal;

[0282] The time-delay-Doppler spectrum result after threshold decision on the time-delay-Doppler spectrum of the second signal;

[0283] Parameters of the perceived target;

[0284] a time difference between uplink timing and downlink timing of the first device;

[0285] 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;

[0286] a timestamp of the first signal;

[0287] a timestamp of the second signal;

[0288] first timing adjustment information.

[0289] Optionally, the method further comprises one of the following:

[0290] the second device receives signal configuration information sent by the first device or a third device; or

[0291] the second device sends signal configuration information to the first device;

[0292] The signal configuration information comprises at least one of the following:

[0293] signal configuration information of the first signal and signal configuration information of the second signal.

[0294] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0295] 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

[0296] 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.

[0297] Optionally, 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 less than the frequency interval between adjacent subcarriers occupied by the first signal:

[0298] 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.

[0299] Optionally, the first signal and the second signal satisfy at least one of the following in time domain:

[0300] A first symbol of the first signal and a second symbol of the second signal are in a same time adjustment period; or

[0301] A time interval or a 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.

[0302] Optionally, a beam of the first signal and a beam of the second signal satisfy at least one of the following:

[0303] The beam for transmitting the first signal and the beam for receiving the second signal are a same beam;

[0304] The beam for transmitting the second signal and the beam for receiving the first signal are a same beam;

[0305] A port for transmitting the first signal and a port for receiving the second signal are quasi co-located (QCL);

[0306] A port for transmitting the second signal and a port for receiving the first signal are QCL;

[0307] The first signal and the second signal are associated with a same SSB or CSI-RS.

[0308] Optionally, the second signal is a signal dedicated for round trip measurement; or

[0309] The second signal is a reference signal for communication.

[0310] Optionally, signal configuration information of at least one of the first signal and the second signal comprises at least one of the following:

[0311] Time-frequency domain resource pattern information;

[0312] Resource set or resource configuration of time-frequency domain resource.

[0313] Optionally, the signal configuration information of the first signal further comprises an identification of the second signal associated with the first signal; and / or

[0314] The signal configuration information of the second signal further comprises an identification of the first signal associated with the second signal.

[0315] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal;

[0316] The signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0317] It should be noted that the embodiment is as the implementation of the second device corresponding to the embodiment shown in FIG. 3, and the specific implementation can refer to the related description of the embodiment shown in FIG. 3. To avoid repeated description, the embodiment will not be described again.

[0318] Please refer to FIG. 7, which is a flow chart of a signal configuration method provided by an embodiment of the present application. As shown in FIG. 7, the method comprises the following steps:

[0319] In 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 comprises at least one of the following:

[0320] Signal configuration information of the first signal and signal configuration information of the second signal;

[0321] 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.

[0322] Optionally, the method further comprises at least one of the following:

[0323] The third device receives first data sent by the first device, wherein the first data is used for determining or suppressing timing starting point deviation between the first device and the second device, or the first data is used for determining or suppressing timing starting point deviation between the first device and the second device and is also used for determining sensing result.

[0324] The third device receives second data sent by the second device, wherein the second data is used for determining or suppressing timing starting point deviation between the first device and the second device, or the second data is used for determining or suppressing timing starting point deviation between the first device and the second device and is also used for determining sensing result.

[0325] Optionally, the first data comprises at least one of the following:

[0326] The first data comprises at least one of the following:

[0327] Difference between the time of receiving one or more paths with the highest power in the second signal and the time of sending the first signal by the first device;

[0328] Time delay spectrum of the second signal;

[0329] Time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0330] Time delay-Doppler spectrum of the second signal;

[0331] a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal;

[0332] a parameter of the target;

[0333] a time difference between uplink timing and downlink timing of the first device;

[0334] 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;

[0335] a timestamp of the first signal;

[0336] a timestamp of the second signal;

[0337] first timing adjustment information.

[0338] Optionally, the second data includes at least one of:

[0339] 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;

[0340] a time delay-Doppler spectrum of the first signal;

[0341] a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the first signal;

[0342] a parameter of the target;

[0343] a time difference between uplink timing and downlink timing of the second device;

[0344] 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 first signal;

[0345] a timestamp of the first signal;

[0346] a timestamp of the second signal;

[0347] second timing adjustment information.

[0348] Optionally, the first signal and the second signal satisfy one of the following in a frequency domain:

[0349] the bandwidths of the first signal and the second signal are the same, and a frequency interval between adjacent subcarriers in the subcarriers occupied by the first signal is the same as a frequency interval between adjacent subcarriers in the subcarriers occupied by the second signal; or

[0350] a bandwidth of the second signal is greater than a bandwidth of the first signal, and / or a frequency interval between adjacent subcarriers occupied by the second signal is smaller than a frequency interval between adjacent subcarriers occupied by the first signal.

[0351] Optionally, in a case where a bandwidth of the second signal is greater than a bandwidth of the first signal, and / or a frequency interval between adjacent subcarriers occupied by the second signal is smaller than a frequency interval between adjacent subcarriers occupied by the first signal:

[0352] sampling the second signal in the frequency domain can enable a bandwidth of the sampled second signal to be the same as a bandwidth of the first signal, and a frequency interval between adjacent subcarriers occupied by the sampled second signal to be the same as a frequency interval between adjacent subcarriers occupied by the first signal.

[0353] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0354] a first symbol of the first signal and a second symbol of the second signal are within a same time adjustment period; or

[0355] a time interval or a 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.

[0356] Optionally, a beam of the first signal and a beam of the second signal satisfy at least one of the following:

[0357] the beam that transmits the first signal and the beam that receives the second signal are a same beam;

[0358] the beam that transmits the second signal and the beam that receives the first signal are a same beam;

[0359] a port that transmits the first signal and a port that receives the second signal are quasi co-located (QCL);

[0360] a port that transmits the second signal and a port that receives the first signal are QCL.

[0361] the first signal and the second signal are associated with a same SSB or CSI-RS.

[0362] Optionally, the second signal is a signal dedicated for round trip time measurement; or

[0363] the second signal is a reference signal for communication.

[0364] Optionally, signal configuration information of at least one of the first signal and the second signal comprises at least one of the following:

[0365] time-frequency domain resource pattern information;

[0366] a resource set or resource configuration of time-frequency domain resources.

[0367] Optionally, the signal configuration information of the first signal further comprises an identification of the second signal associated with the first signal; and / or

[0368] the signal configuration information of the second signal further comprises an identification of the first signal associated with the second signal.

[0369] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal.

[0370] the signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0371] It should be noted that the embodiment is as an implementation of the third device corresponding to the embodiment shown in FIG. 3, and the specific implementation can refer to the related description of the embodiment shown in FIG. 3. To avoid repeated description, the embodiment will not be described here.

[0372] The method provided by the embodiment of the application is exemplified by a plurality of embodiments as follows:

[0373] Embodiment one:

[0374] This embodiment mainly describes the signaling flow, including the following:

[0375] The first device and / or the second device obtain: signal configuration information (first configuration) of the first signal and / or signal configuration information (second configuration) of the second signal.

[0376] The signal configuration information of the first signal and the signal configuration information of the second signal are described in the above embodiments, which will not be repeated here.

[0377] The first device and / or the second device obtain the signal configuration information of the first signal and / or the signal configuration information of the second signal, including the following cases:

[0378] Downlink sensing (the first device is a base station, and the second device is a terminal) includes that the first device sends the signal configuration information of the first signal and / or the signal configuration information of the second signal to the second device.

[0379] Uplink sensing (the first device is a terminal, and the second device is a base station) includes that the second device sends the signal configuration information of the first signal and / or the signal configuration information of the second signal to the first device.

[0380] When the inter-base station link sensing (the first device is a base station 1, and the second device is a base station 2) or the sidelink sensing (the first device is a terminal 1, and the second device is a terminal 2), the method comprises: the perception function network element sending, to the first device, the signal configuration information of the first signal and / or the signal configuration information of the second signal, and the perception function network element sending, to the second device, the signal configuration information of the first signal and / or the signal configuration information of the second signal.

[0381] The first device sends the first signal to the second device and receives the second signal sent by the second device; and the second device receives the first signal sent by the first device and sends the second signal to the second device.

[0382] The first signal is sent by the first device and received by the second device, and is used to perform sensing to obtain a sensing measurement.

[0383] The second signal is sent by the second device and received by the first device, and is used to perform a round trip measurement in cooperation with the first signal to extract or suppress the influence of a timing starting point deviation.

[0384] In some embodiments, after receiving the second signal, the first device determines first data.

[0385] The first data is obtained by the first device through measurement on the second signal, and comprises at least one of the following:

[0386] The difference between the time of receiving the one or more paths with the highest power and the time when the first device sends the first signal, wherein the number of paths whose time difference is reported is configured by the network, and the specific parameters can comprise: the time difference of each path and the power (or amplitude) of the path whose time difference is reported;

[0387] A delay spectrum: the delay spectrum of the second signal measured by the first device;

[0388] The result after thresholding the delay spectrum: a threshold (for example, 20 dB) is set, the power (or amplitude) of the delay spectrum of the second signal measured by the first device is thresholded, and the part that exceeds the threshold is reported;

[0389] A delay-Doppler spectrum: the delay-Doppler spectrum of the second signal measured by the first device;

[0390] The result after thresholding the delay-Doppler spectrum: a threshold is set, the power (or amplitude) of the delay-Doppler spectrum of the delay spectrum of the second signal measured by the first device is thresholded, and the part that exceeds the threshold is reported;

[0391] The parameters of one or more detected perception targets, comprising at least one of the following parameters for each perception target: delay, Doppler, power or amplitude;

[0392] A time difference between the uplink timing and the downlink timing of the first device, wherein if the first device is a terminal, the uplink timing of the first device has a timing advance relative to the downlink timing, and the first device can need to report the value of the timing advance. For example, in the case of sidelink awareness;

[0393] A port number, or an associated SSB ID, or an associated CSI-RS ID;

[0394] A timestamp: a transmission / reception time of the first signal, and / or a transmission / reception time of the second signal;

[0395] First timing adjustment information: a timing adjustment that occurs between a time when the first device transmits a first symbol of the first signal and a time when the first device receives a second symbol of the second signal.

[0396] Wherein, the representation of the first timing adjustment information can be an integer multiple of Tc or Ts. Wherein, Tc = 1 / (480kHz*4096), Ts = 1 / (15kHz*2048).

[0397] 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 is reported.

[0398] Correspondingly, when the second device measures the first signal, the time delay spectrum of the multiple symbols should also be aligned to the time delay spectrum of the first symbol, and then subsequent processing is performed.

[0399] That is, the first symbol or the second symbol can be respectively understood as a time reference point of the first signal or the second signal. When performing round trip measurement, the first signal or the second signal should be respectively taken as a reference to suppress the timing starting point deviation.

[0400] It should be noted that in the embodiment, the measurement quantity reported by the first data does not necessarily correspond to a line of sight (LOS) path, i.e., it can work in LOS conditions or non line of sight (NLOS) conditions.

[0401] In some embodiments, the second device determines the second data after receiving the first signal.

[0402] The second data is obtained by the second device by measuring the first signal, and includes at least one of the following:

[0403] Time-Doppler spectrum: Time-Doppler spectrum of the first signal measured by the second device;

[0404] Result after threshold decision on the Time-Doppler spectrum: Set a threshold, threshold decision on the power (or amplitude) of the Time-Doppler spectrum of the time spectrum of the first signal measured by the second device, and report the part that exceeds the threshold;

[0405] Parameters of one or more detected sensing targets, including at least one of the following parameters for each sensing target: time delay, Doppler, power or amplitude;

[0406] Time difference between uplink timing and downlink timing of the second device, wherein if the second device is a terminal, the uplink timing of the second device has a timing advance relative to the downlink timing, and the second device may need to report the value of the timing advance. For example, in the case of sidelink sensing;

[0407] Port number, or associated SSB ID, or associated CSI-RS ID;

[0408] Timestamp: transmission / reception time of the first signal, and / or transmission / reception time of the second signal;

[0409] Second timing adjustment information.

[0410] In some embodiments, the first device sends first data to the second device, and the second device determines the sensing result according to the first data and the first data.

[0411] The second device sends second data to the first device, and the first device determines the sensing result according to the first data and the second data.

[0412] 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, and the sensing function network element determines the sensing result according to the first data and the second data.

[0413] Embodiment two:

[0414] In this embodiment, the first signal is measured for sensing, and the second signal is only used for round-trip measurement to eliminate the timing starting point deviation of the first signal.

[0415] In this embodiment, the second signal can have a smaller number of symbols, so that the round-trip measurement can be realized with less time-frequency resource overhead to suppress the timing starting point deviation. Here, the smaller number of symbols means much smaller than the number of symbols of the first signal. For example, the first signal occupies 100 symbols in the form of a comb, and the second signal can occupy 1, 2, 4, etc. Number of symbols.

[0416] In particular, the multiple symbols of the second signal can be multiple symbols that are continuous in time domain, or multiple symbols that are distributed in a comb form. In general, the first signal has a large time span in time domain; under the premise of satisfying the maximum unambiguous measurement range of Doppler, the first signal usually occupies M symbols in a comb form to reduce the number of resources occupied by the first signal. At this point, the second signal is different from the first signal.

[0417] In terms of time domain relationship, the second signal can be entirely before the first signal, as shown in (a) of FIG. 4; the second signal can be entirely after the first signal, as shown in (b) of FIG. 4; the second signal can be before the first signal with a certain time span overlap, as shown in (c) of FIG. 4; the second signal can be after the first signal with a certain time span overlap, as shown in (d) of FIG. 4; the time range of the second signal can also be within the time range of the first signal, as shown in (e) of FIG. 4.

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

[0419] The second symbol is used to align the time delay spectrum of the multiple symbols of the second signal, and the aligned time delay spectrum of the multiple symbols of the second signal is used to determine the first data.

[0420] When the first device receives the second signal for signal processing, the time delay spectrum of the multiple symbols (if the second signal includes multiple symbols) of the second signal is aligned to the second symbol; then the time delay spectrum of the multiple symbols is coherently or non-coherently combined to obtain the time delay spectrum of the second signal (denoted as second time delay spectrum). Then, the first device can process the time delay spectrum as follows:

[0421] Directly reporting the second time delay spectrum as an item in the first data;

[0422] Threshold decision is made on the second time delay spectrum, and the part that exceeds the threshold is reported as an item in the first data;

[0423] The one or more paths with the highest power in the second time delay spectrum are reported as an item in the first data.

[0424] When the second device receives the first signal for sensing signal processing, the time delay spectrum of the M symbols of the first signal is aligned to the first symbol; then the time delay spectrum of the M symbols is coherently or non-coherently combined to obtain the time delay spectrum of the first signal (denoted as first time delay spectrum). Alternatively, only the time delay spectrum on the first symbol is taken as the first time delay spectrum.

[0425] According to the reciprocity of the channel, the first delay profile and the second delay profile have high similarity, except for the timing starting point bias and the influence of the signal transmission direction, and there is a time offset between them. FIG. 8 shows an example of the first delay profile and the second delay profile obtained in one test, in which the peak value of the front curve is the first delay profile and the peak value of the rear curve is the second delay profile.

[0426] After obtaining the first data and / or the second data, the timing starting point bias in the first signal can be suppressed by the following processing.

[0427] If the second delay profile or the result after thresholding the second delay profile is included in the first data, the offset of the first delay profile in the second data in the delay domain from the second delay profile can be obtained by an operation (for example, sliding correlation or circular correlation) operation; then, in combination with the time difference (for example, TA) between the uplink timing and the downlink timing of the first device in the first data, the timing starting point bias on the first signal can be obtained or eliminated. For example, the offset value of the first delay profile relative to the second delay profile is Δτ 1,2 , then after suppressing the first starting point bias, the correct first delay profile is reduced or added by the delay value Δτ 1,2 / 2+τ TA or Δτ 1,2 / 2-τ TA , where τ TA represents the time difference between the uplink timing and the downlink timing of the first device and the time difference between the uplink timing and the downlink timing of the second device, and the difference or sum of the two; whether it is “reduced” or “added” and which of the above two values is used depends on the definition of the polarity of the offset value and the time difference between the uplink timing and the downlink timing.

[0428] If the first data includes the time difference between the time of receiving the one or more paths with the highest power in the second delay profile and the time of sending the first signal, the second data can include the time difference between the time of receiving the one or more paths with the highest power in the first delay profile and the time of sending the second signal by the second device, and then the timing starting point bias in the first signal can be determined according to the RTT method.

[0429] For example, the transmission and reception sequence of the first signal and the second signal is that the first device sends the first signal, the second device sends the second signal at a predetermined time after receiving the first signal, and finally the first device receives the second signal. Then, the time difference between the time of receiving the one or more paths in the second signal and the time of sending the first signal by the first device is included in the first data, and is respectively denoted as where the superscript '1' denotes the first device, and the number in the round bracket is the number of the path. Correspondingly, the second device extracts the time difference between the reception time of each path in the first time delay profile and the time when the second device transmits the second signal, denoted as The real propagation time of the path numbered 1 in space is The real propagation time of the path numbered 2 in space is And so on. Obviously, the difference between the time delay of each path in the first time delay profile and the corresponding real propagation time is denoted as the timing start point deviation. The timing start point deviations extracted through multiple paths can be averaged to obtain the final timing start point deviation.

[0430] Another case is that the transmission and reception sequence of the first signal and the second signal is that the second device transmits the second signal, the first device transmits the first signal at a predetermined time after receiving the second signal, and finally the second device receives the first signal. The specific principle is similar to that described in the previous paragraph, which is not repeated here.

[0431] Embodiment Three:

[0432] In this embodiment, both the first signal and the second signal are subjected to perception measurement and round-trip measurement. The second signal is used not only to suppress the timing start point deviation, but also to detect and estimate the parameters of the target. Through the target detection and parameter estimation of the bidirectional perception signal of the first signal and the second signal, the timing start point deviation is suppressed, and the cooperative perception is also improved to enhance the perception performance.

[0433] In this embodiment, the second signal has multiple symbols, and the Doppler can be estimated based on the multiple symbols. The preferred scheme is that the number of symbols of the second signal is the same as that of the first signal, and the time interval between adjacent symbols occupied by the second signal is the same as that between adjacent symbols occupied by the first signal.

[0434] For the same perception target, in order to ensure that the first signal and the second signal can estimate the same time delay and Doppler, the time span of the first signal and the second signal needs to coincide as much as possible, as shown in FIG. 9.

[0435] When the first device receives the second signal to perform the sensing signal processing, the time delay spectrum of a plurality of symbols of the second signal is aligned to the second symbol, and then a FFT is performed along the time dimension (or the symbol index dimension) to obtain a time delay-Doppler spectrum (denoted as a second time delay-Doppler spectrum). Based on the second time delay-Doppler spectrum, sensing target detection is performed, and parameter estimation is performed on the detected sensing target to obtain time delay, Doppler, power and the like of each sensing target. Then, the first device reports the obtained time delay, Doppler, power and the like of each sensing target as part of the first data. In addition, the first data also needs to include the time difference (for example, TA) between the uplink timing and the downlink timing of the first device.

[0436] When the second device receives the first signal to perform the sensing signal processing, the time delay spectrum of M symbols of the first signal is aligned to the first symbol, and then a FFT is performed along the time dimension (or the symbol index dimension) to obtain a time delay-Doppler spectrum (denoted as a first time delay-Doppler spectrum). Based on the first time delay-Doppler spectrum, sensing target detection is performed, and parameter estimation is performed on the detected sensing target to obtain time delay, Doppler, power and the like of each sensing target.

[0437] After obtaining the time delay, Doppler, power and the like of one or more sensing targets extracted based on the first time delay spectrum in the second data, and the time delay, Doppler, power and the like of one or more sensing targets extracted based on the second time delay spectrum in the first data, and the time difference between the uplink timing and the downlink timing of the first device, the time difference between the uplink timing and the downlink timing of the second device is combined to determine the timing starting point deviation contained in the time delay information of the one or more sensing targets, so that the time delay value caused only by spatial propagation corresponding to the one or more sensing targets can be obtained. For example, for any sensing target, the time delay value in the second data is τ1, and the time delay value in the first data is τ2, and the real propagation time delay of the reflection path of the sensing target in space is (τ1+τ2) / 2, or the timing starting point deviation of the second device relative to the first device is τ1-(τ1+τ2) / 2.

[0438] The data acquisition method provided in the embodiments of the present application can be executed by a data acquisition device. In the embodiments of the present application, the data acquisition device is taken as an example to execute the data acquisition method, and the data acquisition device provided in the embodiments of the present application is described.

[0439] The signal configuration method provided in the embodiments of the present application can be executed by a signal configuration device. In the embodiments of the present application, the signal configuration device is taken as an example to execute the signal configuration method, and the signal configuration device provided in the embodiments of the present application is described.

[0440] Embodiments of the present application provide a data acquisition apparatus. As an example, the data acquisition apparatus can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal, a network-side device, a server, or the like. For example, the terminal can include, but is not limited to, the types of terminal 11 listed above, and the network-side device can include, but is not limited to, the types of network-side device 12 listed above. Embodiments of the present application are not limited in this regard.

[0441] Embodiments of the present application provide a signal configuration apparatus. As an example, the signal configuration apparatus can be a communication device or a component in a communication device, such as a chip. The communication device can be a terminal, a network-side device, a server, or the like. For example, the terminal can include, but is not limited to, the types of terminal 11 listed above, and the network-side device can include, but is not limited to, the types of network-side device 12 listed above. Embodiments of the present application are not limited in this regard.

[0442] The data acquisition apparatus or the signal configuration apparatus can include a receiving module, a sending module, and a processing module. The receiving module, the sending module, and the processing module can be implemented by software or by hardware. When implemented by hardware, the processing module can be implemented by a processor. For example, the processor can include a general-purpose processor, a special-purpose processor, or the like, such as a central processing unit (CPU), a microprocessor, a digital signal processor (DSP), an artificial intelligent (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, a gate circuit, a transistor, a discrete hardware component, or the like. The receiving module and the sending module can be implemented by a communication interface. The communication interface can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, or the like.

[0443] Specifically, referring to FIG. 10, when the data acquisition apparatus is a terminal or a component in a terminal, or the data acquisition apparatus is a network-side device or a component in a network-side device, the data acquisition apparatus 1000 includes:

[0444] The sending module 1001 is configured to send a first signal to a second device, where the first signal is used for sensing measurement.

[0445] The receiving module 1002 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.

[0446] The processing module 1003 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 a timing starting point deviation between the first device and the second device and further used for determining a sensing result.

[0447] Optionally, the first data includes at least one of the following:

[0448] 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;

[0449] a time delay spectrum of the second signal;

[0450] a time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0451] a time delay-Doppler spectrum of the second signal;

[0452] a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal;

[0453] a parameter of a sensing target;

[0454] a time difference between uplink timing and downlink timing of the first device;

[0455] information of at least one of the following associated with the second signal: a port number, a synchronization signal block (SSB), and a channel state information reference signal (CSI-RS);

[0456] a timestamp of the first signal;

[0457] a timestamp of the second signal;

[0458] first timing adjustment information.

[0459] Optionally, the sending module 1001 is further configured to send the first data to the second device or a third device; or

[0460] The receiving module 1002 is further configured to receive 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 used for determining a sensing result.

[0461] Optionally, the second data comprises at least one of:

[0462] a difference between a time when the first signal is received and a time when the second device transmits the second signal;

[0463] a time delay-Doppler spectrum of the first signal;

[0464] a time delay-Doppler spectrum result after threshold decision is made on the time delay-Doppler spectrum of the first signal;

[0465] a parameter of a sensing target;

[0466] a time difference between uplink timing and downlink timing of the second device;

[0467] information of at least one of a port number, an SSB, and a CSI-RS associated with the first signal;

[0468] a timestamp of the first signal;

[0469] a timestamp of the second signal;

[0470] second timing adjustment information.

[0471] Optionally, the sending module 1001 is further configured to send signal configuration information to the second device; or

[0472] The receiving module 1002 is further configured to receive signal configuration information sent by the second device or the third device.

[0473] The signal configuration information comprises at least one of:

[0474] signal configuration information of the first signal and signal configuration information of the second signal.

[0475] Optionally, the first signal and the second signal satisfy one of the following in the frequency domain:

[0476] 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

[0477] 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.

[0478] Optionally, in a case that a bandwidth of the second signal is greater than a bandwidth of the first signal, and / or a frequency interval between adjacent subcarriers occupied by the second signal is smaller than a frequency interval between adjacent subcarriers occupied by the first signal:

[0479] Sampling the second signal in the frequency domain can enable the sampled second signal to have a same bandwidth as the first signal, and the sampled second signal to have a same frequency interval between adjacent subcarriers as the first signal.

[0480] Optionally, the first signal and the second signal satisfy at least one of the following in time domain:

[0481] a first symbol of the first signal and a second symbol of the second signal are in a same time adjustment period; or

[0482] a time interval or a 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.

[0483] Optionally, a beam of the first signal and a beam of the second signal satisfy at least one of the following:

[0484] the beam for transmitting the first signal and the beam for receiving the second signal are a same beam;

[0485] the beam for transmitting the second signal and the beam for receiving the first signal are a same beam;

[0486] a port for transmitting the first signal and a port for receiving the second signal are quasi co-located (QCL);

[0487] a port for transmitting the second signal and a port for receiving the first signal are QCL;

[0488] the first signal and the second signal are associated with a same SSB or CSI-RS.

[0489] Optionally, the second signal is a signal dedicated for round trip time measurement; or

[0490] the second signal is a reference signal for communication.

[0491] Optionally, signal configuration information of at least one of the first signal and the second signal comprises at least one of the following:

[0492] time-frequency domain resource pattern information;

[0493] resource set or resource configuration of time-frequency domain resource.

[0494] Optionally, the signal configuration information of the first signal further comprises an identifier of the second signal associated with the first signal; and / or

[0495] The signal configuration information of the second signal further comprises an identifier of the first signal associated with the second signal.

[0496] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal.

[0497] The signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0498] The data acquisition apparatus is beneficial to improving the sensing performance.

[0499] The data acquisition apparatus provided by the embodiments of the present application can implement each process implemented by the method embodiment of FIG. 3 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0500] Specifically, referring to FIG. 11, when the data acquisition apparatus is a terminal or a component in the terminal or the data acquisition apparatus is a network side device or a component in the network side device, the data acquisition apparatus 1100 comprises:

[0501] The receiving module 1101 is configured to receive a first signal sent by a first device, wherein the first signal is used for sensing measurement.

[0502] The processing module 1102 is configured to determine second data based on the first signal, wherein the second data is used for determining or suppressing a timing starting point deviation between the first device and a 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 further used for determining a sensing result.

[0503] The sending module 1103 is configured to send a second signal to the first device, wherein 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.

[0504] Optionally, the second data comprises at least one of the following:

[0505] A difference between a receiving time of one or more paths with the highest power in the first signal and a time when the second device sends the second signal;

[0506] A time delay-Doppler spectrum of the first signal;

[0507] A time delay-Doppler spectrum result after threshold decision is made on the time delay-Doppler spectrum of the first signal;

[0508] A parameter of a sensing target.

[0509] a time difference between uplink timing and downlink timing of the second device;

[0510] information of at least one of a port number, an SSB, a CSI-RS associated with the first signal;

[0511] a timestamp of the first signal;

[0512] a timestamp of the second signal;

[0513] second timing adjustment information.

[0514] Optionally, the receiving module 1101 is further configured to receive 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 the timing starting point deviation between the first device and the second device and further used for determining a sensing result; or,

[0515] The sending module 1103 is further configured to send the second data to the first device or a third device.

[0516] Optionally, the first data includes at least one of the following:

[0517] a difference between a receiving time of one or more paths with the highest power in the second signal and a time when the first device sends the first signal;

[0518] a time delay spectrum of the second signal;

[0519] a time delay spectrum result after threshold decision is made on the time delay spectrum of the second signal;

[0520] a time delay-Doppler spectrum of the second signal;

[0521] a time delay-Doppler spectrum result after threshold decision is made on the time delay-Doppler spectrum of the second signal;

[0522] a parameter of a sensing target;

[0523] a time difference between uplink timing and downlink timing of the first device;

[0524] information of at least one of a port number, a synchronization signal block SSB, a channel state information reference signal CSI-RS associated with the second signal;

[0525] a timestamp of the first signal;

[0526] a timestamp of the second signal;

[0527] first timing adjustment information.

[0528] Optionally, the receiving module 1101 is further configured to receive signal configuration information sent by the first device or the third device.

[0529] The sending module 1103 is further configured to send signal configuration information to the first device.

[0530] The signal configuration information comprises at least one of the following:

[0531] Signal configuration information of the first signal and signal configuration information of the second signal.

[0532] Optionally, the first signal and the second signal satisfy at least one of the following in the frequency domain:

[0533] 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

[0534] 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.

[0535] Optionally, in the case that 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:

[0536] 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.

[0537] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0538] The first symbol of the first signal and the second symbol of the second signal are in the same time adjustment period; or

[0539] 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.

[0540] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0541] the beam for transmitting the first signal is the same as the beam for receiving the second signal;

[0542] the beam for transmitting the second signal is the same as the beam for receiving the first signal;

[0543] the port for transmitting the first signal is quasi co-located (QCL) with the port for receiving the second signal;

[0544] the port for transmitting the second signal is QCL with the port for receiving the first signal;

[0545] the first signal and the second signal are associated with the same SSB or CSI-RS.

[0546] Optionally, the second signal is a signal dedicated for round trip time measurement; or

[0547] the second signal is a reference signal for communication.

[0548] Optionally, the signal configuration information of at least one of the first signal and the second signal comprises at least one of the following:

[0549] time-frequency domain resource pattern information;

[0550] resource set or resource configuration of time-frequency domain resource.

[0551] Optionally, the signal configuration information of the first signal further comprises an identifier of the second signal associated with the first signal; and / or

[0552] the signal configuration information of the second signal further comprises an identifier of the first signal associated with the second signal.

[0553] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal;

[0554] the signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0555] The data acquisition apparatus is beneficial to improving the perception performance.

[0556] The data acquisition apparatus provided by the embodiments of the present application can implement each process implemented by the method embodiment of FIG. 6 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0557] Referring to FIG. 12, when the signal configuration apparatus is a terminal or a component in the terminal, or the signal configuration apparatus is a network side device or a component in the network side device, the signal configuration apparatus 1200 comprises:

[0558] The sending module 1201 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:

[0559] The signal configuration information of the first signal, the signal configuration information of the second signal;

[0560] 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.

[0561] Optionally, the apparatus further includes a receiving module configured to at least one of the following:

[0562] 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;

[0563] 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.

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

[0565] The first data includes at least one of the following:

[0566] Difference between the time of receiving one or more paths with the highest power in the second signal and the time of sending the first signal by the first device;

[0567] Time delay spectrum of the second signal;

[0568] Time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0569] Time delay-Doppler spectrum of the second signal;

[0570] Time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal;

[0571] Parameter of the sensing target;

[0572] Time difference between uplink timing and downlink timing of the first device;

[0573] information of at least one of a port number, a synchronization signal block (SSB), a channel state information reference signal (CSI-RS) associated with the second signal;

[0574] a timestamp of the first signal;

[0575] a timestamp of the second signal;

[0576] first timing adjustment information.

[0577] Optionally, the second data comprises at least one of:

[0578] 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;

[0579] a time delay-Doppler profile of the first signal;

[0580] a time delay-Doppler profile result after threshold decision on the time delay-Doppler profile of the first signal;

[0581] a parameter of a sensing target;

[0582] a time difference between uplink timing and downlink timing of the second device;

[0583] information of at least one of a port number, a synchronization signal block (SSB), a channel state information reference signal (CSI-RS) associated with the first signal;

[0584] a timestamp of the first signal;

[0585] a timestamp of the second signal;

[0586] second timing adjustment information.

[0587] Optionally, the first signal and the second signal satisfy one of the following in a frequency domain:

[0588] the bandwidths of the first signal and the second signal are the same, and a frequency interval between adjacent subcarriers occupied by the first signal is the same as a frequency interval between adjacent subcarriers occupied by the second signal; or

[0589] the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or a frequency interval between adjacent subcarriers occupied by the second signal is less than a frequency interval between adjacent subcarriers occupied by the first signal.

[0590] Optionally, in the case that the bandwidth of the second signal is greater than the bandwidth of the first signal, and / or a frequency interval between adjacent subcarriers occupied by the second signal is less than a frequency interval between adjacent subcarriers occupied by the first signal:

[0591] Sampling the second signal in the frequency domain can make the bandwidth of the sampled second signal and the first signal the same, and the frequency interval between adjacent subcarriers occupied by the sampled second signal is the same as the frequency interval between adjacent subcarriers occupied by the first signal.

[0592] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0593] The first symbol of the first signal and the second symbol of the second signal are in the same time adjustment period; or

[0594] 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.

[0595] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0596] The beam for transmitting the first signal and the beam for receiving the second signal are the same beam;

[0597] The beam for transmitting the second signal and the beam for receiving the first signal are the same beam;

[0598] The port for transmitting the first signal and the port for receiving the second signal are quasi co-located (QCL);

[0599] The port for transmitting the second signal and the port for receiving the first signal are QCL;

[0600] The first signal and the second signal are associated with the same SSB or CSI-RS.

[0601] Optionally, the second signal is a signal dedicated for round trip measurement; or

[0602] The second signal is a reference signal for communication.

[0603] Optionally, the signal configuration information of at least one of the first signal and the second signal includes at least one of the following:

[0604] Time-frequency domain resource pattern information;

[0605] Resource set or resource configuration of time-frequency domain resources.

[0606] Optionally, the signal configuration information of the first signal further includes the identification of the second signal associated with the first signal; and / or

[0607] The signal configuration information of the second signal further comprises an identifier of the first signal associated with the second signal.

[0608] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal.

[0609] The signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0610] The signal configuration apparatus is beneficial to improving the sensing performance.

[0611] The signal configuration apparatus provided by the embodiments of the present application can implement each process of the method embodiment of FIG. 7 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0612] As shown in FIG. 13, the embodiments of the present application further provide a communication device 1300, which comprises a processor 1301 and a memory 1302, and the memory 1302 stores programs or instructions executable on the processor 1301. For example, when the communication device 1300 is a first device, the programs or instructions are executed by the processor 1301 to implement each step of the data acquisition method embodiment of the first device side described above and achieve the same technical effects. When the communication device 1300 is a second device, the programs or instructions are executed by the processor 1301 to implement each step of the data acquisition method embodiment of the second device side described above and achieve the same technical effects. When the communication device 1300 is a third device, the programs or instructions are executed by the processor 1301 to implement each step of the signal configuration method embodiment described above and achieve the same technical effects. To avoid repetition, details are not described herein.

[0613] The embodiments of the present application further provide a device comprising a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the steps in the method embodiment shown in FIG. 3. The device embodiment corresponds to the data acquisition method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the device embodiment and achieve the same technical effects. The device can be the data acquisition apparatus shown in FIG. 10. Specifically, FIG. 14 is a hardware structure diagram of a device implementing the embodiments of the present application, and the device is a first device.

[0614] The device 1400 includes, but is not limited to, at least part of the following components: a radio frequency unit 1401, a network module 1402, an audio output unit 1403, an input unit 1404, a sensor 1405, a display unit 1406, a user input unit 1407, an interface unit 1408, a memory 1409, and a processor 1410.

[0615] Those skilled in the art can understand that the device 1400 can also include a power supply (such as a battery) for supplying power to each component, and the power supply can be logically connected to the processor 1410 through a power management system, so that the power management system can realize the functions of managing charging, discharging and power consumption management. The device structure shown in FIG. 14 does not constitute a limitation on the device, and the device can include more or fewer components than those shown, or combine certain components, or different component arrangements, which will not be described here.

[0616] It should be understood that in the embodiments of the present application, the input unit 1404 can include a graphics processor 14041 and a microphone 14042. The graphics processor 14041 processes image data of a still picture or a video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 1406 can include a display panel 14061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. 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 can include two parts of a touch detection device and a touch controller. The other input devices 14072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), trackballs, mice, joysticks, which will not be described here.

[0617] In the embodiments of the present application, after the radio frequency unit 1401 receives the downlink data from the network side device, it can be transmitted to the processor 1410 for processing. In addition, the radio frequency unit 1401 can send uplink data to the network side device. Generally, the radio frequency unit 1401 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0618] The memory 1409 can be used to store software programs or instructions and various data. The memory 1409 can mainly include a first storage area storing programs or instructions and a second storage area storing data, wherein the first storage area can store an operating system, application programs or instructions required by at least one function (such as a sound playing function, an image playing function, etc.), and the like. In addition, the memory 1409 can include a volatile memory or a non-volatile memory. The non-volatile memory can be a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can be a Random Access Memory (RAM), a Static RAM (SRAM), a Dynamic RAM (DRAM), a Synchronous DRAM (SDRAM), a Double Data Rate SDRAM (DDR SDRAM), an Enhanced SDRAM (ESDRAM), a Synch link DRAM (SLDRAM), and a Direct Rambus RAM (DRRAM). The memory 1409 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0619] The processor 1410 can include one or more processing units; optionally, the processor 1410 integrates an application processor and a modem processor, wherein the application processor mainly processes operations related to an operating system, a user interface, and an application program, and the modem processor mainly processes wireless communication signals, such as a baseband processor. It can be understood that the above-mentioned modem processor can also not be integrated into the processor 1410.

[0620] The radio frequency unit 1401 is configured to transmit a first signal to a second device, wherein the first signal is used for sensing measurement.

[0621] The radio frequency unit 1401 is further configured to receive a second signal transmitted by the second device, wherein 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.

[0622] The processor 1410 is configured to determine first data based on the second signal, the first data being used to determine or mitigate a timing starting point deviation between the first device and a second device, or the first data being used to determine or mitigate a timing starting point deviation between the first device and a second device and further being used to determine a sensing result.

[0623] Optionally, the first data comprises at least one of:

[0624] 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;

[0625] a time delay spectrum of the second signal;

[0626] a time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0627] a time delay-Doppler spectrum of the second signal;

[0628] a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal;

[0629] a parameter of a sensing target;

[0630] a time difference between uplink timing and downlink timing of the first device;

[0631] 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;

[0632] a time stamp of the first signal;

[0633] a time stamp of the second signal;

[0634] first timing adjustment information.

[0635] Optionally, the radio frequency unit 1401 is further configured to:

[0636] send the first data to the second device or a third device; or

[0637] receive second data sent by the second device, the second data being used to determine or mitigate a timing starting point deviation between the first device and a second device, or the second data being used to determine or mitigate a timing starting point deviation between the first device and a second device and further being used to determine a sensing result.

[0638] Optionally, the second data comprises at least one of:

[0639] a time difference between uplink timing and downlink timing of the second device;

[0640] a time delay-Doppler spectrum of the first signal;

[0641] a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the first signal;

[0642] a parameter of a sensing target;

[0643] a time difference between uplink timing and downlink timing of the second device;

[0644] information of at least one of a port number, an SSB, and a CSI-RS associated with the first signal;

[0645] a timestamp of the first signal;

[0646] a timestamp of the second signal;

[0647] second timing adjustment information.

[0648] Optionally, the radio frequency unit 1401 is further configured to perform the following operation:

[0649] send, to the second device, signal configuration information; or

[0650] receive, from the second device or the third device, signal configuration information;

[0651] The signal configuration information includes at least one of the following:

[0652] signal configuration information of the first signal and signal configuration information of the second signal.

[0653] Optionally, the first signal and the second signal satisfy at least one of the following in the frequency domain:

[0654] 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

[0655] 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.

[0656] Optionally, in a case that a bandwidth of the second signal is greater than a bandwidth of the first signal, and / or a frequency interval between adjacent subcarriers occupied by the second signal is smaller than a frequency interval between adjacent subcarriers occupied by the first signal:

[0657] Sampling the second signal in the frequency domain can enable the sampled second signal to have a same bandwidth as the first signal, and the sampled second signal to have a same frequency interval between adjacent subcarriers as the first signal.

[0658] Optionally, the first signal and the second signal satisfy at least one of the following in time domain:

[0659] a first symbol of the first signal and a second symbol of the second signal are in a same time adjustment period; or

[0660] a time interval or a 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.

[0661] Optionally, a beam of the first signal and a beam of the second signal satisfy at least one of the following:

[0662] the beam for transmitting the first signal and the beam for receiving the second signal are a same beam;

[0663] the beam for transmitting the second signal and the beam for receiving the first signal are a same beam;

[0664] a port for transmitting the first signal and a port for receiving the second signal are quasi co-located (QCL);

[0665] a port for transmitting the second signal and a port for receiving the first signal are QCL;

[0666] the first signal and the second signal are associated with a same SSB or CSI-RS.

[0667] Optionally, the second signal is a signal dedicated for round trip time measurement; or

[0668] the second signal is a reference signal for communication.

[0669] Optionally, signal configuration information of at least one of the first signal and the second signal comprises at least one of the following:

[0670] time-frequency domain resource pattern information;

[0671] resource set or resource configuration of time-frequency domain resource.

[0672] Optionally, the signal configuration information of the first signal further comprises an identifier of the second signal associated with the first signal; and / or

[0673] The signal configuration information of the second signal further comprises an identifier of the first signal associated with the second signal.

[0674] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal.

[0675] The signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0676] The above device is beneficial to improve the sensing performance.

[0677] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the data acquisition method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0678] It should be noted that the first device is taken as an example in the embodiment, and the second device can also be a terminal in the embodiment, that is, the terminal can also implement each step in the method shown in FIG. 6.

[0679] The embodiment of the application further provides a device comprising a processor and a communication interface, wherein the communication interface is coupled with the processor, and the processor is configured to run programs or instructions to implement the steps of the method embodiment shown in FIG. 6. The device embodiment corresponds to the above-mentioned data acquisition method embodiment. Each implementation process and implementation manner of the above-mentioned method embodiment can be applied to the device embodiment, and the same technical effects can be achieved.

[0680] Specifically, the embodiment of the application further provides a device, which is a second device, and the device can be the signal configuration apparatus shown in FIG. 11. As shown in FIG. 15, the device 1500 comprises an antenna 1501, a radio frequency apparatus 1502, a baseband apparatus 1503, a processor 1504 and a memory 1505. The antenna 1501 is connected with the radio frequency apparatus 1502. In the uplink direction, the radio frequency apparatus 1502 receives information through the antenna 1501, and sends the received information to the baseband apparatus 1503 for processing. In the downlink direction, the baseband apparatus 1503 processes the information to be sent, and sends the processed information to the radio frequency apparatus 1502. The radio frequency apparatus 1502 processes the received information, and sends the processed information through the antenna 1501.

[0681] The method performed by the device in the above embodiment can be implemented in the baseband apparatus 1503, and the baseband apparatus 1503 comprises a baseband processor.

[0682] The baseband device 1503 may, for example, include at least one baseband board on which a plurality of chips are disposed, as shown in FIG. 15, one of the chips being, for example, a baseband processor connected with the memory 1505 through a bus interface to invoke a program in the memory 1505 to perform the network device operations shown in the above method embodiments.

[0683] The device may further include a network interface 1506, for example, a Common Public Radio Interface (CPRI).

[0684] Specifically, the device 1500 of the embodiments of the present application further includes instructions or programs stored in the memory 1505 and executable on the processor 1504, the processor 1504 invoking the instructions or programs in the memory 1505 to perform the methods performed by the modules shown in FIG. 11 and achieve the same technical effects, and thus repeated descriptions are omitted.

[0685] The radio frequency device 1502 is configured to receive a first signal sent by a first device, the first signal being used for sensing measurement;

[0686] The processor 1504 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 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 being used for determining a sensing result.

[0687] The radio frequency device 1502 is further 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.

[0688] Optionally, the second data includes at least one of the following:

[0689] 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;

[0690] a time delay-Doppler spectrum of the first signal;

[0691] a time delay-Doppler spectrum result after threshold decision is made on the time delay-Doppler spectrum of the first signal;

[0692] a parameter of a sensing target;

[0693] a time difference between uplink timing and downlink timing of the second device;

[0694] information of at least one of a port number, an SSB, a CSI-RS associated with the first signal;

[0695] a timestamp of the first signal;

[0696] a timestamp of the second signal;

[0697] second timing adjustment information.

[0698] Optionally, the radio frequency device 1502 is further configured to receive first data transmitted 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 the timing starting point deviation between the first device and the second device and further being used for determining the sensing result; or,

[0699] The radio frequency device 1502 is further configured to transmit the second data to the first device or a third device.

[0700] Optionally, the first data comprises at least one of:

[0701] a difference between a time of receiving one or more paths with the highest power in the second signal and a time of transmitting the first signal by the first device;

[0702] a time delay spectrum of the second signal;

[0703] a time delay spectrum result after threshold decision on the time delay spectrum of the second signal;

[0704] a time delay-Doppler spectrum of the second signal;

[0705] a time delay-Doppler spectrum result after threshold decision on the time delay-Doppler spectrum of the second signal;

[0706] a parameter of the sensing target;

[0707] a time difference between uplink timing and downlink timing of the first device;

[0708] information of at least one of a port number, an SSB, a CSI-RS associated with the first signal;

[0709] a timestamp of the first signal;

[0710] a timestamp of the second signal;

[0711] first timing adjustment information.

[0712] Optionally, the radio frequency device 1502 is further configured to receive signal configuration information transmitted by the first device or a third device; or

[0713] The radio frequency device 1502 is further configured to send signal configuration information to the first device;

[0714] The signal configuration information comprises at least one of:

[0715] Signal configuration information of the first signal, and signal configuration information of the second signal.

[0716] Optionally, the first signal and the second signal satisfy at least one of the following in the frequency domain:

[0717] 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

[0718] 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.

[0719] Optionally, 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 less than the frequency interval between adjacent subcarriers occupied by the first signal:

[0720] 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.

[0721] Optionally, the first signal and the second signal satisfy at least one of the following in the time domain:

[0722] The first symbol of the first signal and the second symbol of the second signal are in the same time adjustment period; or

[0723] The difference between the time interval or the symbol index of the first symbol of the first signal and the second symbol of the second signal is less than a preset threshold.

[0724] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0725] The beam for transmitting the first signal and the beam for receiving the second signal are the same beam;

[0726] The beam for transmitting the second signal and the beam for receiving the first signal are the same beam;

[0727] a port transmitting the first signal is quasi co-located (QCL) with a port receiving the second signal;

[0728] a port transmitting the second signal is QCL with a port receiving the first signal;

[0729] the first signal and the second signal are associated with a same SSB or CSI-RS.

[0730] Optionally, the second signal is a signal dedicated for round trip time measurement; or

[0731] the second signal is a reference signal for communication.

[0732] Optionally, the signal configuration information of at least one of the first signal and the second signal comprises at least one of:

[0733] time-frequency domain resource pattern information;

[0734] resource set or resource configuration of time-frequency domain resource.

[0735] Optionally, the signal configuration information of the first signal further comprises an identity of the second signal associated with the first signal; and / or

[0736] the signal configuration information of the second signal further comprises an identity of the first signal associated with the second signal.

[0737] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal;

[0738] the signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0739] The above device is beneficial to improve the sensing performance.

[0740] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the data acquisition method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0741] It should be noted that the second device is taken as the network side device for example in the embodiment, and the first device can also be the network side device in the embodiment, that is, the network side device can also implement each step in the method shown in FIG. 3.

[0742] The embodiment of the application further provides a device, comprising a processor and a communication interface, the communication interface is coupled with the processor, and the processor is used to run programs or instructions to realize the steps of the method embodiment shown in Fig. 7. The device embodiment corresponds to the signal configuration method embodiment described above, and each implementation process and implementation manner of the method embodiment can be applied to the device embodiment, and the same technical effects can be achieved.

[0743] Specifically, the embodiment of the application further provides a network side device, which is a third device. As shown in Fig. 16, the network side device 1600 comprises a processor 1601, a network interface 1602 and a memory 1603. The network interface 1602 is, for example, a common public radio interface (CPRI).

[0744] Specifically, the network side device 1600 of the embodiment of the application further comprises instructions or programs stored in the memory 1603 and executable on the processor 1601, the processor 1601 invokes the instructions or programs in the memory 1603 to execute the method performed by each module shown in Fig. 12, and the same technical effects are achieved. To avoid repetition, details are not described herein.

[0745] The network interface 1602 is used to send signal configuration information to at least one of the first device and the second device, and the signal configuration information comprises at least one of the following:

[0746] Signal configuration information of the first signal and signal configuration information of the second signal;

[0747] 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.

[0748] Optionally, the network interface 1602 is further used for at least one of the following:

[0749] Receiving first data sent by the first device, the first data is used to determine or suppress timing starting point deviation between the first device and the second device, or the first data is used to determine or suppress timing starting point deviation between the first device and the second device, and is further used to determine sensing result;

[0750] Receiving second data sent by the second device, the second data is used to determine or suppress timing starting point deviation between the first device and the second device, or the second data is used to determine or suppress timing starting point deviation between the first device and the second device, and is further used to determine sensing result.

[0751] Optionally, the first data comprises at least one of:

[0752] The first data comprises at least one of:

[0753] a difference between a time when the one or more paths with the highest power in the second signal are received and a time when the first device transmits the first signal;

[0754] a time delay profile of the second signal;

[0755] a time delay profile result after threshold decision on the time delay profile of the second signal;

[0756] a time delay-Doppler profile of the second signal;

[0757] a time delay-Doppler profile result after threshold decision on the time delay-Doppler profile of the second signal;

[0758] a parameter of the target;

[0759] a time difference between uplink timing and downlink timing of the first device;

[0760] information of at least one of a port number, an SSB, a CSI-RS associated with the second signal;

[0761] a time stamp of the first signal;

[0762] a time stamp of the second signal;

[0763] first timing adjustment information.

[0764] Optionally, the second data comprises at least one of:

[0765] a difference between a time when the one or more paths with the highest power in the first signal are received and a time when the second device transmits the second signal;

[0766] a time delay-Doppler profile of the first signal;

[0767] a time delay-Doppler profile result after threshold decision on the time delay-Doppler profile of the first signal;

[0768] a parameter of the target;

[0769] a time difference between uplink timing and downlink timing of the second device;

[0770] information of at least one of a port number, an SSB, a CSI-RS associated with the first signal;

[0771] a time stamp of the first signal;

[0772] a timestamp of the second signal;

[0773] second timing adjustment information.

[0774] Optionally, the first signal and the second signal satisfy at least one of the following in a frequency domain:

[0775] the bandwidths of the first signal and the second signal are same, and the frequency interval between adjacent subcarriers occupied by the first signal is same as the frequency interval between adjacent subcarriers occupied by the second signal; or

[0776] the bandwidth of the second signal is larger 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.

[0777] Optionally, in the case that the bandwidth of the second signal is larger 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:

[0778] sampling the second signal in the frequency domain can make the bandwidth of the sampled second signal same as the bandwidth of the first signal, and the frequency interval between adjacent subcarriers occupied by the sampled second signal same as the frequency interval between adjacent subcarriers occupied by the first signal.

[0779] Optionally, the first signal and the second signal satisfy at least one of the following in a time domain:

[0780] the first symbol of the first signal and the second symbol of the second signal are in a same timing adjustment period; or

[0781] 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 smaller than a preset threshold.

[0782] Optionally, the beam of the first signal and the beam of the second signal satisfy at least one of the following:

[0783] the beam for transmitting the first signal and the beam for receiving the second signal are a same beam;

[0784] the beam for transmitting the second signal and the beam for receiving the first signal are a same beam;

[0785] the port for transmitting the first signal and the port for receiving the second signal are quasi co-located, QCL;

[0786] a port transmitting the second signal is QCL with a port receiving the first signal;

[0787] The first signal and the second signal are associated with a same SSB or CSI-RS.

[0788] Optionally, the second signal is a signal dedicated for round trip time measurement; or

[0789] The second signal is a reference signal for communication.

[0790] Optionally, the signal configuration information of at least one of the first signal and the second signal comprises at least one of:

[0791] time-frequency domain resource pattern information;

[0792] resource set or resource configuration of time-frequency domain resource.

[0793] Optionally, the signal configuration information of the first signal further comprises an identification of the second signal associated with the first signal; and / or

[0794] The signal configuration information of the second signal further comprises an identification of the first signal associated with the second signal.

[0795] Optionally, the signal configuration information of the first signal further comprises information of a first symbol of the first signal;

[0796] The signal configuration information of the second signal further comprises information of a second symbol of the second signal.

[0797] The above device is beneficial to improve the sensing performance.

[0798] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the signal configuration method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0799] The embodiment of the application further provides a readable storage medium, the readable storage medium stores a program or instructions, the program or instructions are executed by a processor to realize each process of the above data acquisition method or signal configuration method embodiment, and can achieve the same technical effects. To avoid repetition, it will not be repeated here.

[0800] The processor is the processor in the terminal in the above embodiment. The readable storage medium includes a computer readable storage medium, such as a computer readable memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, etc. In some examples, the readable storage medium can be a non-transitory readable storage medium.

[0801] The chip provided by the embodiment of the present application can also be referred to as a system chip, a system on chip, a chip system or a system on chip system.

[0802] It should be understood that the chip mentioned in the embodiment of the present application can also be referred to as a system chip, a system on chip, a chip system or a system on chip system.

[0803] The embodiment of the present application further provides a computer program / program product stored in a storage medium, wherein the computer program / program product is executed by at least one processor to implement the processes of the data acquisition method or the signal configuration method, and the same technical effects can be achieved. To avoid repetition, details are not described here.

[0804] The embodiment of the present application further provides a wireless communication system, which comprises a first device and a second device, or comprises a first device, a second device and a third device. The first device can be used to execute the steps of the data acquisition method on the first device side provided by the embodiment of the present application. The first device can be used to execute the steps of the data acquisition method on the second device side provided by the embodiment of the present application. The third device can be used to execute the steps of the signal configuration method provided by the embodiment of the present application.

[0805] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or include elements inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "comprising a" does not exclude the presence of other identical elements in the process, method, article or device including the element. In addition, it should be pointed out that the scope of the method and device in the present application is not limited to the order of performing the functions as shown or discussed, but can also include performing the functions in a substantially simultaneous manner or in a reverse order, for example, the described method can be performed in an order different from that described, and various steps can also be added, omitted or combined. In addition, the features described with reference to certain examples can be combined in other examples.

[0806] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned example methods can be realized by means of a computer software product and a general hardware platform as necessary, and of course can also be realized by hardware. The computer software product is stored in a storage medium (such as a ROM, a RAM, a magnetic disc, an optical disc, etc.), and includes a plurality of instructions for enabling a terminal or a network side device to execute the method described in each embodiment of the present application.

[0807] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the specific embodiments described above, and the specific embodiments described above are merely illustrative rather than limiting. Those skilled in the art can make many forms of embodiments under the inspiration of the present application without departing from the scope of the present application and the scope protected by the claims, and these embodiments all belong to the protection of the present application.

Claims

1. A data acquisition method, wherein, 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 of claim 1 or 2, wherein, 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 of any one of claims 1 to 4, wherein, 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 of any one of claims 1 to 7, 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.

9. The method of any one of claims 1 to 8, wherein, 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 of any one of claims 1 to 9, wherein, The second signal is a signal dedicated for round trip measurement; or The second signal is a reference signal for communication.

11. The method of any one of claims 5 to 10, 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.

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 of claim 11 or 12, wherein, 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, wherein, 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 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 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 of claim 14 or 15, wherein, 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 of any one of claims 14 to 17, wherein, 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 of any one of claims 14 to 20, wherein, 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, wherein, 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, wherein, 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, wherein, 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. A signal configuration apparatus, wherein, 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 start point deviation between the first device and the second device, or the first data being used for determining or suppressing timing start 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 start point deviation between the first device and the second device, or the second data being used for determining or suppressing timing start 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 in 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 in 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 in any one of claims 23 to 26.

36. A readable storage medium, wherein, 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 in any one of claims 1 to 13, or implement steps of the data acquisition method in any one of claims 14 to 22, or implement steps of the signal configuration method in any one of claims 23 to 26.

37. A computer program product, wherein, 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 in any one of claims 1 to 13, or implement steps of the data acquisition method in any one of claims 14 to 22, or implement steps of the signal configuration method in any one of claims 23 to 26.

Images