State determination method and apparatus, and device

Abstract

The present application relates to the technical field of communications, and discloses a state determination method and apparatus, and a device. The state determination method in embodiments of the present application comprises: a first device receives a first signal sent by a second device, the first signal being used for sensing measurement; and on the basis of the first signal, the first device determines a state between the first device and the second device, the state between the first device and the second device being an LOS state or an NLOS state, wherein activation or deactivation of a second signal is determined on the basis of the state between the first device and the second device, and the second signal is a signal sent by the first device and used in conjunction with the first signal to perform round-trip measurement.

Description

State determination method, apparatus and device

[0001] Cross-reference to Related Applications

[0002] This application claims priority to Chinese Patent Application No. 202411236624.3, filed on September 4, 2024, the contents of which are 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 state determination method, apparatus and device. BACKGROUND

[0004] In the perception scene, there is a two-station perception scene, that is, the transmitter and receiver of the perception signal belong to different devices, such as inter-base station two-station perception, inter-base station two-station perception, and inter-terminal two-station perception. In the related art, the signal between two devices is continuously transmitted, which results in a large transmission overhead of the device. SUMMARY

[0005] Embodiments of the present application provide a state determination method, a state determination method, an apparatus and a device, which can solve the problem of large transmission overhead of the device.

[0006] In a first aspect, a state determination method is provided, comprising:

[0007] The first device receives a first signal sent by a second device, the first signal being used for perception measurement;

[0008] The first device determines the state between the first device and the second device based on the first signal, the state between the first device and the second device being a line of sight (LOS) state or a non line of sight (NLOS) state;

[0009] Wherein, the activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal sent by the first device and used for round trip measurement in cooperation with the first signal.

[0010] In a second aspect, a state determination method is provided, comprising:

[0011] The second device sends a first signal to a first device, the first signal being used for perception measurement and for determining the state between the first device and the second device, the state between the first device and the second device being a line of sight (LOS) state or a non line of sight (NLOS) state;

[0012] The activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal received by the second device and used to cooperate with the first signal for round trip measurement.

[0013] In a third aspect, a state determination method is provided, comprising:

[0014] The third device receives first indication information sent by the first device, the first indication information being used to indicate related information of the state between the first device and the second device.

[0015] In a fourth aspect, a state determination apparatus is provided, comprising:

[0016] The receiving module is configured to receive a first signal sent by a second device, the first signal being used for sensing measurement.

[0017] The processing module is configured to determine a state between the first device and the second device based on the first signal, the state between the first device and the second device being a line of sight (LOS) state or a non-line of sight (NLOS) state.

[0018] The activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal sent by the first device and used to cooperate with the first signal for round trip measurement.

[0019] In a fifth aspect, a state determination apparatus is provided, comprising:

[0020] The sending module is configured to send a first signal to a first device, the first signal being used for sensing measurement, and to determine a state between the first device and the second device, the state between the first device and the second device being a line of sight (LOS) state or a non-line of sight (NLOS) state.

[0021] The activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal received by the second device and used to cooperate with the first signal for round trip measurement.

[0022] In a sixth aspect, a state determination apparatus is provided, comprising:

[0023] The receiving module is configured to receive first indication information sent by the first device, the first indication information being used to indicate related information of the state between the first device and the second device.

[0024] In a seventh aspect, a state determination apparatus is provided, the apparatus being configured to perform the steps of the state determination method on the first device side as provided in the embodiments of the present application.

[0025] In an eighth aspect, a state determination apparatus is provided, which is configured to perform the steps of the state determination method on the second device side as provided in the embodiments herein.

[0026] In a ninth aspect, a state determination apparatus is provided, which is configured to perform the steps of the state determination method on the third device side as provided in the embodiments herein.

[0027] In a tenth aspect, a device is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement the steps of the state determination method on the first device side as provided in the embodiments herein.

[0028] In an eleventh aspect, a device is provided, which comprises a processor and a communication interface, wherein the communication interface is configured to receive a first signal transmitted by a second device, the first signal being used for sensing measurement; the processor is configured to determine a state between the first device and the second device based on the first signal, the state between the first device and the second device being a line-of-sight (LOS) state or a non-line-of-sight (NLOS) state; and an activation or deactivation of a second signal is determined based on the state between the first device and the second device, the second signal being transmitted by the first device and used for round-trip measurement in cooperation with the first signal.

[0029] In a twelfth aspect, a device is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement the steps of the state determination method on the second device side as provided in the embodiments herein.

[0030] In a thirteenth aspect, a device is provided, which comprises a processor and a communication interface, wherein the communication interface is configured to transmit a first signal to a first device, the first signal being used for sensing measurement, and determine a state between the first device and the second device, the state between the first device and the second device being a line-of-sight (LOS) state or a non-line-of-sight (NLOS) state; and an activation or deactivation of a second signal is determined based on the state between the first device and the second device, the second signal being received by the second device and used for round-trip measurement in cooperation with the first signal.

[0031] In a fourteenth aspect, a device is provided, which comprises a processor and a memory, the memory storing programs or instructions executable on the processor, the programs or instructions, when executed by the processor, implement the steps of the state determination method on the third device side as provided in the embodiments herein.

[0032] In a fifteenth aspect, a device is provided, including a processor and a communication interface, wherein the communication interface is configured to receive first indication information sent by the first device, the first indication information being used to indicate related information of a state between the first device and the second device.

[0033] In a sixteenth aspect, a readable storage medium is provided, the readable storage medium storing a program or instructions, the program or instructions being executed by a processor to implement steps of the state determination method on the first device side provided by embodiments of the present application, or to implement steps of the state determination method on the second device side provided by embodiments of the present application, or to implement steps of the state determination method on the third device side provided by embodiments of the present application.

[0034] In a seventeenth aspect, a wireless communication system is provided, including a first device and a second device, or including a first device, a second device and a third device, the first device being configured to implement steps of the state determination method on the first device side provided by embodiments of the present application, the first device being configured to implement steps of the state determination method on the second device side provided by embodiments of the present application, and the third device being configured to implement steps of the state determination method on the third device side provided by embodiments of the present application.

[0035] In an eighteenth aspect, a chip is provided, including a processor and a communication interface, the communication interface being coupled to the processor, and the processor being configured to run a program or instructions to implement the state determination method on the first device side provided by embodiments of the present application, to implement the state determination method on the second device side provided by embodiments of the present application, or to implement the state determination method provided by embodiments of the present application.

[0036] In a nineteenth aspect, a computer program / program product is provided, the computer program / program product being stored in a storage medium, the computer program / program product being executed by at least one processor to implement steps of the state determination method on the first device side provided by embodiments of the present application, or the computer program / program product being executed by at least one processor to implement steps of the state determination method on the second device side provided by embodiments of the present application, or the computer program / program product being executed by at least one processor to implement steps of the state determination method on the third device side provided by embodiments of the present application.

[0037] In the embodiments of the present application, the first device receives a first signal sent by a second device, the first signal being used for sensing measurement; the first device determines a state between the first device and the second device based on the first signal, the state between the first device and the second device being a LOS state or a NLOS state; and activation or deactivation of a second signal is determined based on the state between the first device and the second device, the second signal being a signal sent by the first device and used for round trip measurement in cooperation with the first signal. In this way, since the activation or deactivation of the second signal is determined based on the state between the first device and the second device, continuous sending of the second signal can be avoided, thereby saving transmission overhead of the device. BRIEF DESCRIPTION OF DRAWINGS

[0038] FIG. 1 is a schematic diagram of a system provided by an embodiment of the present application;

[0039] FIG. 2a is a schematic diagram of a sensing measurement scenario provided by an embodiment of the present application;

[0040] FIG. 2b is a schematic diagram of timing deviation provided by an embodiment of the present application;

[0041] FIG. 3 is a flowchart of a state determination method provided by an embodiment of the present application;

[0042] FIG. 4 is a flowchart of another state determination method provided by an embodiment of the present application;

[0043] FIG. 5 is a flowchart of another state determination method provided by an embodiment of the present application;

[0044] FIG. 6 is a time domain schematic diagram of a signal provided by an embodiment of the present application;

[0045] FIG. 7 is a structural diagram of a state determination apparatus provided by an embodiment of the present application;

[0046] FIG. 8 is a structural diagram of another state determination apparatus provided by an embodiment of the present application;

[0047] FIG. 9 is a structural diagram of another state determination apparatus provided by an embodiment of the present application;

[0048] FIG. 10 is a structural diagram of a communication device provided by an embodiment of the present application;

[0049] FIG. 11 is a structural diagram of a device provided by an embodiment of the present application;

[0050] FIG. 12 is a structural diagram of another device provided by an embodiment of the present application;

[0051] FIG. 13 is a structural diagram of another device provided by an embodiment of the present application. DETAILED DESCRIPTION

[0052] 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 the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those of ordinary skill in the art are within the scope of protection of the present application.

[0053] 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 those illustrated or described herein, and the objects distinguished by "first", "second" are generally a class, and are not limited to 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 including 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.

[0054] The term "indication" in the present application can be a direct indication (or explicit indication) or an indirect indication (or implicit indication). Among them, the direct indication can be understood as that the sender explicitly informs the receiver of the specific information, the operation to be performed or the request result, etc. in the sent indication; 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 operation to be performed or the request result, etc. according to the judgment result.

[0055] 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.

[0056] 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

[0057] 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.

[0058] ​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.

[0059] 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.

[0060] 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.

[0061] 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).

[0062] 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.

[0063] 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) improved efficiency and reduced cost. 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.

[0064] 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.

[0065] Table 1:

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] 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.

[0074] Of the six basic sensing methods shown in Figure 2a, in four methods—inter-base station air interface sensing, uplink air interface sensing, downlink air interface sensing, and inter-terminal sidelink sensing—the transmitter and receiver of the sensing signal belong to different devices; that is, these four sensing methods are bi-site sensing. However, in two sensing methods—base station self-transmission and self-reception sensing and terminal self-transmission and self-reception sensing—the transmitter and receiver of the sensing signal belong to the same device; that is, these two sensing methods are mono-site sensing.

[0075] Dual-station sensing does not require the equipment to have full-duplex capability, and its signal propagation characteristics are essentially the same as those in communication systems in related technologies. Therefore, dual-station sensing can fully utilize the hardware and signal design of communication systems in related technologies, thus enabling truly integrated communication and sensing design at a lower cost. Furthermore, dual-station sensing, especially uplink or downlink air interface sensing, allows for flexible selection of the terminal equipment responsible for transmitting or receiving sensing signals. If a terminal equipment closer to the sensing target is selected, the signal propagation distance from the target to the terminal is shorter, resulting in lower signal propagation path loss and ultimately a gain in sensing signal power. Based on these advantages, dual-station sensing has remained a hot topic in integrated sensing research.

[0076] However, the dual-station sensing mode also presents a significant challenge: the time-frequency asynchrony between the transmitter and receiver of the sensing signal. The transmitter and receiver each use their respective frequency sources to generate local oscillator and clock signals for transmitting and receiving the sensing signal. The difference between the local oscillator and clock signals between the transceivers leads to timing skew. As shown in Figure 2b, the timing skew consists of two parts: timing start point deviation (τ in Figure 2b). strat As shown in Figure 2b, timing drift (Δτ1, Δτ2, Δτ3, etc.) is also present. Timing start point deviation is mainly caused by the overall deviation between the receiver clock and the transmitter clock of the sensed signal, resulting in an overall shift in the time delay spectrum. Timing drift, on the other hand, is caused by the difference in clock period between the receiver clock and the transmitter clock of the sensed signal. As time changes, the timing drift on each Orthogonal Frequency Division Multiplexing (OFDM) symbol will change.

[0077] The following description, in conjunction with the accompanying drawings, details a state determination method, apparatus, and device provided in this application through some embodiments and application scenarios.

[0078] Please refer to Figure 3, which is a flowchart of a state determination method provided in an embodiment of this application. As shown in Figure 3, it includes the following steps:

[0079] Step 301, a first device receives a first signal sent by a second device, the first signal being used for sensing measurement.

[0080] 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.

[0081] The first signal can be referred to as a sensing signal.

[0082] Step 302, the first device determines a state between the first device and the second device based on the first signal, the state between the first device and the second device being a LOS state or a NLOS state.

[0083] The activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal sent by the first device and used for round trip measurement in cooperation with the first signal.

[0084] The determination of the state between the first device and the second device based on the first signal can be based on measurement of part or all symbols of the first signal to determine the state between the first device and the second device, specifically to determine whether the state between the first device and the second device is a LOS state or a NLOS state. For example, the first signal includes M symbols in the time domain, and the first device determines whether the state between the first device and the second device is a LOS state or a NLOS state based on measurement of M0 OFDM symbols of the first signal, where 1≤M0≤M.

[0085] In the embodiments of the present application, a symbol can refer to an OFDM symbol.

[0086] In some embodiments, the time delay spectrum of the first signal can be used to determine whether the state between the first device and the second device is a LOS state or a NLOS state. For example, if there is a LOS path in the time delay spectrum, it is determined that the state between the first device and the second device is a LOS state, and vice versa. Specifically, in one embodiment, the first device can determine whether there is a LOS path based on the time delay spectrum of the first signal and the characteristics of the LOS path. Typically, the path with the strongest power in the time delay spectrum of the LOS path and the time delay value corresponding to the local peak of all time delay values is the smallest, which can be used to determine whether there is a LOS path. If there is a LOS path, it is a LOS state, otherwise it is a NLOS state. In another embodiment, the first device inputs the time delay spectrum of the first signal into an artificial intelligence (AI) model, and the AI model outputs a determination of whether there is a LOS path. If there is a LOS path, it is a LOS state, otherwise it is a NLOS state.

[0087] The second signal can be a signal dedicated to round trip measurement, or the second signal can be a reference signal for communication.

[0088] 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).

[0089] The activation or deactivation of the second signal can be based on a state between the first device and the second device.

[0090] The activation or deactivation of the second signal can be understood as the activation or deactivation of sending the second signal, such as the second device or the third device activating the first device to send the second signal, i.e. the behavior of the first device sending the second signal is activated by the second device or the third device, such as the second device or the third device deactivating the first device to send the second signal, i.e. the behavior of deactivating the sending of the second signal is indicated by the second device or the third device, specifically the first device stops or does not send the second signal.

[0091] Or, the activation or deactivation of the second signal can be understood as the activation or deactivation of receiving the second signal, such as the first device or the third device activating the second device to receive the second signal, i.e. the behavior of the second device receiving the second signal is activated by the first device or the third device, such as the first device or the third device deactivating the second device to receive the second signal, i.e. the behavior of deactivating the receiving of the second signal is indicated by the first device or the third device, specifically the second device stops or does not receive the second signal.

[0092] Or, the activation or deactivation of the second signal can be the first device, the second device, or the third device activating the second signal or deactivating the second signal, such as the first device activating the second signal, then the first device sends the second signal to the second device, the first device deactivates the second signal, then the first device stops or does not send the second signal; such as the second device activating the second signal, then the second device receives the second signal, the second device deactivates the second signal, then the second device stops or does not receive the second signal; such as the third device activating the second signal, then the third device notifies the first device to send the second signal to the second device, the third device deactivates the second signal, then the third device notifies the first device to stop or not to send the second signal.

[0093] wherein the round trip measurement is used to determine or mitigate the timing start point bias between the first device and the second device.

[0094] In the embodiments of the present application, since the activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal can be avoided from being continuously transmitted, thereby saving the transmission overhead of the device.

[0095] In addition, in the embodiments of the present application, the round trip measurement based on the first signal and the second signal can be supported, and the round trip measurement can determine or mitigate the timing start point bias between the first device and the second device, thereby supporting the determination or mitigation of the timing start point bias between the first device and the second device in the sensing scenario, and being beneficial to improving the sensing performance.

[0096] In some embodiments, the first device can also select a manner of determining or mitigating the timing start point bias between the first device and the second device based on the state between the first device and the second device.

[0097] For example, in the case of the LOS state, the LOS path is used to determine or mitigate the timing start point bias between the first device and the second device, and in the case of the NLOS state, the round trip measurement is used to determine or mitigate the timing start point bias between the first device and the second device. In this way, the LOS path with small overhead can be used in the LOS state, and the round trip measurement with large overhead can be used only in the NLOS state, thereby saving the overhead caused by sensing.

[0098] In some embodiments, in the LOS state, there is a LOS path, and in this scenario, if the position information of the first signal transceiver is known, the real value of the signal propagation delay corresponding to the LOS path can be determined. In addition, in this scenario, the LOS path is the path with the smallest delay value and the strongest power. According to the above characteristics, the measurement value of the signal propagation delay corresponding to the LOS path can be determined from the delay-Doppler spectrum of the first signal, and thus, according to the real value and the measurement value of the signal propagation of the LOS path, the timing start point bias between the first device and the second device can be determined or mitigated.

[0099] In some embodiments, the timing start point deviation between the transceiving ends of the perception signal can be estimated by a round-trip measurement in the interworking system. The basic idea is that, according to the radar "stop-and-go" model, the motion state (position and velocity) of the perception target can be considered not to change in a short period of time (for example, a few milliseconds to tens of milliseconds). For the same perception target, the corresponding signal propagation delay of the bidirectional transceiving of the perception signal between the transceiving ends is the same, and the absolute value of the timing start point deviation is the same and the sign is opposite, so that the timing start point deviation between the first device and the second device can be determined or suppressed by the round-trip measurement.

[0100] In addition, the true value of the signal propagation delay corresponding to the several paths with the strongest power can be determined by the round-trip measurement, and the several paths with the strongest power can be LOS paths or can not be LOS paths. At the same time, the measured value of the signal propagation delay of the several paths with the strongest power can also be easily determined according to the delay-Doppler spectrum, so that the influence of the timing start point deviation between the first device and the second device can be determined or suppressed.

[0101] In the embodiments of the present application, the round-trip measurement can be a round-trip time (RTT) measurement, and the method for determining the true value of the signal propagation delay based on the RTT method can refer to the way defined in the protocol, which will not be described in detail here.

[0102] In some embodiments, the second signal is activated in the case that the state between the first device and the second device is an NLOS state, and the second signal is deactivated in the case that the state between the first device and the second device is an LOS state, the second signal being a signal transmitted by the first device and used for round-trip measurement in cooperation with the first signal.

[0103] The above-mentioned activation of the second signal can be that the first device activates the first device to transmit the second signal to the second device, or that the first device receives signaling for activating the first device to transmit the second signal to the second device.

[0104] The above-mentioned activation of the first device to transmit the second signal to the second device can also be referred to as informing the first device to transmit the second signal to the second device, or activating the second signal.

[0105] The above-mentioned deactivation of the second signal can be that the first device deactivates the second signal, i.e., the first device stops or does not transmit the second signal, or that the first device receives signaling for deactivating the first device to transmit the second signal to the second device.

[0106] The above-mentioned deactivation of the first device to transmit the second signal to the second device can also be referred to as informing the first device to stop transmitting the second signal to the second device.

[0107] In the above embodiments, the second signal is deactivated when the state between the first device and the second device is the LOS state, so that the overhead of signal transmission can be saved. For example, in the LOS state, the timing starting point deviation between the first device and the second device is determined or suppressed in the LOS path mode.

[0108] As an optional embodiment, the method further comprises:

[0109] The first device sends first indication information to the second device or the third device, the first indication information being used to indicate the related information of the state between the first device and the second device; or

[0110] The first device sends first signaling or second signaling to the second device, the first signaling being used to activate the receiving of the second signal, and the second signaling being used to deactivate the receiving of the second signal.

[0111] In some embodiments, the third device can be a sensing function (Sensing Function) network element, which can also be called a sensing network element or a sensing network function, and 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. The sensing function network element can be based on the upgrade of the AMF or LMF in the 5G network, or can be 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:

[0112] interacting with the wireless signal sending device and / or the wireless signal measuring device (including the target terminal or the serving base station of the target terminal or the base station associated with the target area) to obtain the target sensing result or the value of the sensing measurement quantity (uplink measurement quantity or downlink measurement quantity) sent by the wireless signal measuring device, wherein the wireless signal can also be referred to as a sensing signal;

[0113] The sensing method used is determined according to the type of the sensing service, the sensing service consumer information, the required quality of service (QoS) requirement information, the sensing capability of the wireless signal sending device, the sensing capability of the wireless signal measuring device, etc. The sensing method can include: base station A to base station B, or base station to terminal, or base station A self to self, or terminal to base station, or terminal self to self, or terminal A to terminal B, etc.

[0114] The perception device serving the perception service is determined according to the type of the perception service, information of a consumer of the perception service, required perception QoS requirement information, a perception capability of the wireless signal transmitting device, a perception capability of the wireless signal measuring device, and other factors, wherein the perception device includes the wireless signal transmitting device and / or the wireless signal measuring device;

[0115] Overall coordination and scheduling of resources required for the perception service are managed, such as corresponding configuration of perception resources of the base station and / or the terminal;

[0116] Data processing is performed on the value of the perception measurement quantity, or a perception result is obtained by calculation. Further, the perception result is verified, and the perception accuracy is estimated.

[0117] The related information of the state between the first device and the second device can be a specific state between the first device and the second device, such as an LOS state or an NLOS state, or the related information can indicate whether the state between the first device and the second device changes.

[0118] The first indication information is transmitted to the second device or the third device, so that the second device or the third device activates or deactivates the transmission of the second signal based on the state.

[0119] In some embodiments, at least one of the first signaling and the second signaling can be downlink control information (DCI), a medium access control control element (MAC CE), radio resource control (RRC) signaling, non access stratum (NAS) signaling, and the like.

[0120] The first signaling for activating the reception of the second signal can be understood as the first signaling for activating the second signal, or the first signaling for activating the behavior of receiving the second signal.

[0121] The second signaling for deactivating the reception of the second signal can be understood as the second signaling for deactivating the second signal, or the second signaling for deactivating the behavior of receiving the second signal.

[0122] In the above embodiments, the first device activates or deactivates the second signal through the first signaling or the second signaling, which can specifically be that the first device transmits the first signaling for activating the reception of the second signal or the second signaling for deactivating the reception of the second signal to the second device based on the state between the first device and the second device.

[0123] In some embodiments, the first indication information is used to indicate that the state between the first device and the second device is the LOS state or the NLOS state; or

[0124] The first indication information is used to indicate that the state between the first device and the second device changes; or

[0125] The first indication information is sent in the case that the state between the first device and the second device is the NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

[0126] The first indication information can be used to indicate that the state between the first device and the second device is the LOS state or the NLOS state by 1 bit, such as using bit ‘1’ to represent the LOS state and bit ‘0’ to represent the NLOS state.

[0127] The indication that the state between the first device and the second device changes can be understood as that the first indication information is sent in the case that the state changes, for example, if the first device and the second device are considered to be in the LOS state before, the first indication information is reported when it is judged that the first device and the second device are in the NLOS state; if the first device and the second device are considered to be in the NLOS state before, the first indication information is reported when it is judged that the first device and the second device are in the LOS state.

[0128] At the beginning of the perception measurement, it can be defaulted that the first device and the second device are in the LOS state or the NLOS state, and if it is defaulted that the first device and the second device are in the LOS state, the second signal is not activated at the beginning of the perception measurement, and if it is defaulted that the first device and the second device are in the NLOS state, the second signal is activated at the beginning of the perception measurement.

[0129] The first indication information is sent in the case that the state between the first device and the second device is the NLOS state, which can be understood as that the first indication information is only sent in the NLOS state and is not sent in the LOS state, so as to save the transmission cost.

[0130] In some embodiments, in the case that the first indication information is sent to the second device, the method further comprises at least one of the following:

[0131] In the case that the first indication information indicates that the state between the first device and the second device is the NLOS state and the state between the first device and the second device is the LOS state at the first time, the first device receives the third signaling sent by the second device, and the third signaling is used to activate the sending of the second signal to the second device;

[0132] In a case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device at the first time is the NLOS state, the first device receives fourth signaling sent by the second device, the fourth signaling being used to deactivate sending the second signal to the second device.

[0133] The first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0134] The state between the first device and the second device at the first time can be a default state or a state determined by a previous measurement.

[0135] The third signaling used to activate sending the second signal to the second device can be understood as that the second signal is in a deactivated state before the third signaling is received, and the second signal is activated to be sent to the second device by the third signaling; or the third signaling used to activate sending the second signal to the second device can be understood as activating the second signal.

[0136] The fourth signaling used to deactivate sending the second signal to the second device can be understood as that the second signal is in an activated state before the fourth signaling is received, for example, the first device sends the second signal to the second device, and the fourth signaling is used to deactivate sending the second signal to the second device, that is, the first device is notified to stop sending the second signal to the second device; or the fourth signaling used to deactivate sending the second signal to the second device can be understood as deactivating the second signal.

[0137] The second time can be a time at which step 302 is performed.

[0138] In the above embodiment, the third signaling and the fourth signaling can be used to activate or deactivate the second signal in time, so as to save signal transmission overhead.

[0139] In some embodiments, at least one of the third signaling and the fourth signaling can be DCI, MAC CE, RRC signaling, NAS signaling, or the like.

[0140] In some embodiments, if the first indication information indicates that the first device and the second device are in the NLOS state, and the first device and the second device are in the NLOS state at the first time, no action is performed, that is, the third signaling or the fourth signaling does not need to be sent in this case.

[0141] In some embodiments, if the first indication information indicates that the first device and the second device are in the LOS state, and the first device and the second device are in the LOS state at the first time, no action is taken, i.e. the third signaling or the fourth signaling does not need to be sent in this case.

[0142] In some embodiments, in the case where the first indication information is sent to the third device, the method further comprises at least one of the following:

[0143] In the case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at the first time, the first device receives the fifth signaling sent by the third device, and the fifth signaling is used to activate the sending of the second signal to the second device.

[0144] In the case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at the first time, the first device receives the sixth signaling sent by the third device, and the sixth signaling is used to deactivate the sending of the second signal to the second device.

[0145] The first time is a time before the second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0146] The fifth signaling for activating the sending of the second signal to the second device can be understood as that the second signal is in an inactive state before the fifth signaling is received, and the second signal is activated to be sent to the second device by the fifth signaling; or the fifth signaling for activating the sending of the second signal to the second device can be understood as activating the second signal.

[0147] The sixth signaling for deactivating the sending of the second signal to the second device can be understood as that the second signal is in an active state before the sixth signaling is received, such as the first device sending the second signal to the second device, and the sending of the second signal to the second device is deactivated by the sixth signaling, i.e. the first device is notified to stop sending the second signal to the second device; or the sixth signaling for deactivating the sending of the second signal to the second device can be understood as deactivating the second signal.

[0148] In the above embodiments, the fifth signaling and the sixth signaling can activate or deactivate the second signal in time, so as to save the signal transmission overhead.

[0149] In some implementations, at least one of the fifth and sixth signaling signals mentioned above may be DCI, MAC CE, RRC signaling, NAS signaling, etc.

[0150] In some implementations, if the first indication information indicates that the first device and the second device are in an NLOS state, and the first device and the second device are in an NLOS state at a first moment, then no action is taken, that is, in this case, it is not necessary to send the aforementioned fifth signaling or sixth signaling.

[0151] In some implementations, if the first indication information indicates that the first device and the second device are in a LOS state, and the first device and the second device are in a LOS state at a first moment, then no action is taken, that is, in this case, it is not necessary to send the aforementioned fifth signaling or sixth signaling.

[0152] In some embodiments, the method further includes:

[0153] The first device receives configuration information of the second signal sent by the second device or the third device.

[0154] The configuration information for the second signal mentioned above is used to configure the time and frequency resources of the second signal.

[0155] For example, the above configuration information includes at least one of the following:

[0156] Waveform types, such as OFDM, SC-FDMA, Orthogonal Time-Frequency-Space (OTFS), Frequency Modulated Continuous Wave (FMCW), pulse signals, etc.

[0157] Subcarrier spacing, for example, 30 kHz in an OFDM system;

[0158] The guard interval can be the time interval between the end of signal transmission and the latest echo signal of that signal being received; this parameter is proportional to the maximum sensing distance; for example, it can be expressed as a 2d... max / c is calculated to obtain d max This refers to the maximum sensing distance (related to sensing requirements), for example, for spontaneously received sensing signals, d max It represents the maximum distance from the sensing signal transceiver point to the signal transmitter point; in some cases, the OFDM signal cyclic prefix (CP) can serve as the minimum guard interval.

[0159] Bandwidth, which is inversely proportional to the distance resolution (belongs to the perception requirement), can be obtained by c / (2Ad), where Ad is the distance resolution (belongs to the perception requirement); c is the speed of light;

[0160] Burst duration, which is inversely proportional to the rate resolution (belongs to the perception requirement), is the time span of the perception signal, mainly for calculating the Doppler frequency offset; the parameter can be calculated by c / (2f c Av); where Av is the velocity resolution; f c is the carrier frequency of the perception signal;

[0161] Time interval, which can be calculated by c / (2f c v range ); where v range is the maximum rate minus the minimum speed (belongs to the perception requirement); the parameter is the time interval between two adjacent perception signals;

[0162] Transmit signal power, for example, from -20dBm to 23dBm every 2dBm;

[0163] Signal format, for example, Sounding Reference Signal (SRS), Demodulation Reference Signal (DMRS), Positioning Reference Signal (PRS) and other pre-defined signals, as well as related sequence format information, etc.

[0164] Time resource, for example: the time slot index or symbol index of the time slot where the perception signal is located; the time resource is divided into two kinds, one is one-time time resource, for example, one symbol transmits one omnidirectional perception signal; the other is non-one-time time resource, for example, multiple groups of periodic time resources or discontinuous time resources (may contain start time and end time), each group of periodic time resources transmits the same direction of perception signal, and the beam direction of different groups of periodic time resources is different;

[0165] Frequency resource, including the center frequency of the perception signal, bandwidth, resource block (RB) or subcarrier, reference point (Point A), starting bandwidth position, etc.

[0166] The configuration information of the second signal obtained by the first device can be the configuration information of the second signal received by the first device from the second device or the third device.

[0167] For example, the first device receives the configuration information of the second signal when receiving the configuration information of the first signal, such as the network side device simultaneously sending the configuration information of the first signal and the second signal to the first device.

[0168] Alternatively, the configuration information of the second signal is received when the second signal is activated.

[0169] In some embodiments, the configuration information of the second signal can also be a protocol agreement or pre-configuration.

[0170] In some embodiments, the first device sending the first signaling or the second signaling to the second device comprises:

[0171] In the case that the state between the first device and the second device is an NLOS state, and the state between the first device and the second device at the first time is an LOS state, the first device sends the first signaling to the second device; or

[0172] In the case that the state between the first device and the second device is an LOS state, and the state between the first device and the second device at the first time is an NLOS state, the first device sends the second signaling to the second device.

[0173] Wherein, the first time is a time before the third time, and the third time is a time corresponding to the state between the first device and the second device.

[0174] In this embodiment, the first device can not report the first indication information, and the second signal is activated or deactivated by the first device, such as the first device being a network side device.

[0175] In some embodiments, the third time and the second time can be the same time.

[0176] In the above embodiments, the first signaling and the second signaling can activate or deactivate the second signal in time, so as to save the signal transmission overhead.

[0177] In some embodiments, if the first indication information indicates that the first device and the second device are in an NLOS state, and the first device and the second device are in an NLOS state at the first time, there is no action, that is, the first signaling or the second signaling does not need to be sent in this case.

[0178] In some embodiments, if the first indication information indicates that the first device and the second device are in an LOS state, and the first device and the second device are in an LOS state at the first time, there is no action, that is, the first signaling or the second signaling does not need to be sent in this case.

[0179] In some embodiments, the method further comprises:

[0180] The first device sends configuration information of the second signal to the second device.

[0181] The configuration information of the second signal is as described in the above embodiments, which will not be repeated here.

[0182] In this embodiment, the configuration information of the second signal can be configured by the first device.

[0183] In the embodiments of the present application, the first device receives a first signal sent by a second device, the first signal being used for sensing measurement; the first device determines a state between the first device and the second device based on the first signal, the state between the first device and the second device being a LOS state or a NLOS state; wherein activation or deactivation of a second signal is determined based on the state between the first device and the second device, the second signal being a signal sent by the first device and used for round-trip measurement in cooperation with the first signal. In this way, since the activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal can be continuously transmitted to save the transmission overhead of the device.

[0184] Please refer to FIG. 4, which is a flow chart of another state determination method provided by the embodiments of the present application, as shown in FIG. 4, comprising the following steps:

[0185] Step 401, the second device sends a first signal to the first device, the first signal being used for sensing measurement and for determining a state between the first device and the second device, the state between the first device and the second device being a LOS state or a NLOS state;

[0186] Wherein, activation or deactivation of a second signal is determined based on the state between the first device and the second device, the second signal being a signal received by the second device and used for round-trip measurement in cooperation with the first signal.

[0187] Optionally, the method further comprises one of the following:

[0188] The second device receives first indication information sent by the first device, the first indication information being used for indicating related information of the state between the first device and the second device; or

[0189] The second device receives first signaling or second signaling sent by the first device, the first signaling being used for activating reception of the second signal, and the second signaling being used for deactivating reception of the second signal; or

[0190] The second device receives seventh signaling or eighth signaling sent by the third device, the seventh signaling being used for activating signaling of receiving the second signal, and the eighth signaling being used for deactivating signaling of receiving the second signal.

[0191] Optionally, the first indication information is used for indicating that a state between the first device and the second device is a LOS state or a NLOS state; or

[0192] The first indication information is used for indicating that a state between the first device and the second device changes; or

[0193] The first indication information is sent in a case where a state between the first device and the second device is a NLOS state, and is used for indicating that the state between the first device and the second device is a NLOS state.

[0194] Optionally, the method further includes at least one of the following:

[0195] In a case where the first indication information indicates that a state between the first device and the second device is a NLOS state, and a state between the first device and the second device is a LOS state at a first time, the second device sends third signaling to the first device, the third signaling being used for activating sending of a second signal to the second device;

[0196] In a case where the first indication information indicates that a state between the first device and the second device is a LOS state, and a state between the first device and the second device is a NLOS state at a first time, the second device sends fourth signaling to the first device, the fourth signaling being used for deactivating sending of a second signal to the second device;

[0197] The first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0198] Optionally, the second device receiving the first signaling or the second signaling sent by the first device includes:

[0199] In a case where a state between the first device and the second device is a NLOS state, and a state between the first device and the second device is a LOS state at a first time, the second device receives the first signaling sent by the first device; or

[0200] in a case that the state between the first device and the second device is an NLOS state and the state between the first device and the second device is an LOS state at a first time, the second device receives the second signaling sent by the first device;

[0201] The first time is a time before a third time, and the third time is a time corresponding to the judgment of the state between the first device and the second device.

[0202] Optionally, the receiving, by the second device, of the seventh signaling or the eighth signaling sent by the third device comprises:

[0203] in a case that the state between the first device and the second device is an NLOS state and the state between the first device and the second device is an LOS state at a first time, the second device receives the second signaling sent by the first device;

[0204] in a case that the state between the first device and the second device is an NLOS state and the state between the first device and the second device is an LOS state at a first time, the second device receives the second signaling sent by the first device;

[0205] The first time is a time before a third time, and the third time is a time corresponding to the judgment of the state between the first device and the second device.

[0206] Optionally, the method further comprises:

[0207] The second device sends configuration information of the second signal to the first device; or

[0208] The second device receives configuration information of the second signal sent by the first device or the third device.

[0209] It should be noted that the embodiment is as a corresponding second device in the embodiment shown in FIG. 3, and the specific implementation manner can be referred to the related description of the embodiment shown in FIG. 3. To avoid repeated description, the embodiment will not be described herein.

[0210] Please refer to FIG. 5, which is a flow chart of a state determination method provided by an embodiment of the present application. As shown in FIG. 5, the method comprises the following steps:

[0211] In step 501, the third device receives first indication information sent by the first device, the first indication information being used for indicating related information of a state between the first device and the second device, the state between the first device and the second device being a line-of-sight (LOS) state or a non-line-of-sight (NLOS) state.

[0212] Optionally, the first indication information is used to indicate that the state between the first device and the second device is the LOS state or the NLOS state.

[0213] The first indication information is used to indicate that the state between the first device and the second device changes.

[0214] The first indication information is sent in the case that the state between the first device and the second device is the NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

[0215] Optionally, the method further comprises at least one of the following:

[0216] In the case that the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at the first time, the third device sends fifth signaling to the first device, and the fifth signaling is used to activate the sending of the second signal to the second device.

[0217] In the case that the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at the first time, the third device sends seventh signaling to the second device, and the seventh signaling is used to activate the receiving of the second signal.

[0218] In the case that the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at the first time, the third device sends sixth signaling to the first device, and the sixth signaling is used to deactivate the sending of the second signal to the second device.

[0219] In the case that the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at the first time, the third device sends eighth signaling to the second device, and the eighth signaling is used to deactivate the receiving of the second signal.

[0220] The first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0221] Optionally, the method further comprises:

[0222] The third device sends configuration information of the second signal to at least one of the first device and the second device.

[0223] It should be noted that the embodiment is as an implementation of a 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 again.

[0224] The method provided by the embodiment of the application is exemplified by a plurality of embodiments as follows:

[0225] Embodiment one:

[0226] In the embodiment, downlink sensing is described, the first device is a terminal, and the second device is a base station. The embodiment specifically includes the following:

[0227] The terminal receives a first signal sent by the base station, and judges a LOS / NLOS state based on measurement of part or all OFDM symbols of the first signal.

[0228] The first signal is used to perform sensing measurement. The first signal includes M OFDM symbols in the time domain, and M≥1.

[0229] The terminal judges whether the terminal and the base station are in an LOS state or an NLOS state based on measurement of M0 OFDM symbols after receiving the M0 OFDM symbols of the first signal, and 1≤M0≤M.

[0230] In some embodiments, after the LOS / NLOS state is judged, the terminal has the following options of actions:

[0231] Option 1: The terminal reports first indication information to the base station. The first indication information is used to indicate the LOS / NLOS state between the terminal and the base station. For example, the first indication information includes one bit, and bit ‘1’ represents the LOS state and bit ‘0’ represents the NLOS state.

[0232] Option 2: When the LOS / NLOS state between the terminal and the base station changes, the terminal reports the first indication information to the base station, including:

[0233] If the terminal and the base station are considered to be in the LOS state before, when the terminal judges that the terminal and the base station are in the NLOS state, the first indication information is reported.

[0234] If the terminal and the base station are considered to be in the NLOS state before, when the terminal judges that the terminal and the base station are in the LOS state, the first indication information is reported.

[0235] It should be noted that at the beginning of the perception measurement, it can be defaulted that the terminal and the base station are in the LOS state or the NLOS state, for example, if it is defaulted that the terminal and the base station are in the LOS state, the second signal is not activated at the beginning of the perception measurement, and if it is defaulted that the terminal and the base station are in the NLOS state, the second signal is activated at the beginning of the perception measurement.

[0236] In some embodiments, after receiving the first indication information, the base station includes the following actions according to the different previous states:

[0237] If the first indication information indicates that the terminal and the base station are in the NLOS state, and it is considered that the terminal and the base station are in the LOS state before, the base station sends third signaling to the terminal, and the third signaling is used to inform (or activate) the terminal to send the second signal to the base station;

[0238] If the first indication information indicates that the terminal and the base station are in the LOS state, and it is considered that the terminal and the base station are in the NLOS state before (that is, the second signal is in the activated state), the base station sends fourth signaling to the terminal, and the fourth signaling is used to inform the terminal to stop (or deactivate) the second signal sent to the base station;

[0239] If the first indication information indicates that the terminal and the base station are in the NLOS state, and it is considered that the terminal and the base station are in the NLOS state before (that is, the second signal is in the activated state), there is no action;

[0240] If the first indication information indicates that the terminal and the base station are in the LOS state, and it is considered that the terminal and the base station are in the LOS state before, there is no action.

[0241] Wherein, the previous state of the terminal and the base station is the state of the terminal and the base station at the first time in the above embodiments.

[0242] And it is considered that the terminal and the base station are in the NLOS state before or it is considered that the terminal and the base station are in the LOS state before can be the default state at the beginning of the perception measurement, or can be determined by the first indication information reported by the terminal to the base station in the previous perception process.

[0243] In some embodiments, the third signaling and / or the fourth signaling can be DCI, MAC CE, RRC signaling, NAS signaling, etc.

[0244] In some embodiments, the second signal is used to perform the round trip measurement with the first signal, and is used to extract or suppress the timing starting point deviation suffered by the first signal received by the terminal.

[0245] In some embodiments, the base station sends the configuration information of the second signal to the terminal before the terminal sends the second signal to the base station.

[0246] Specifically, the base station can send the configuration information of the second signal to the terminal together with the configuration information of the first signal before the base station sends the first signal; however, the transmission of the second signal is not activated, and only the transmission of the first signal is activated.

[0247] Alternatively, the base station can send the configuration information of the second signal to the terminal and activate the transmission of the second signal after the base station receives the first indication information.

[0248] Obviously, it is a preferred solution that the base station sends the configuration information of the second signal together with the configuration information of the first signal. Because the base station sends the configuration information of the second signal through RRC signaling, there will be a relatively large end-to-end delay.

[0249] Embodiment Two:

[0250] This embodiment describes uplink sensing, in which the first device is a base station and the second device is a terminal. The embodiment specifically includes the following:

[0251] The base station receives the first signal sent by the terminal and determines the LOS / NLOS state based on the measurement of part or all of the OFDM symbols of the first signal.

[0252] The first signal is used to perform sensing measurement, and the first signal includes M OFDM symbols in the time domain, where M≥1.

[0253] The base station determines whether the terminal and the base station are in an LOS state or an NLOS state based on the measurement of M0 OFDM symbols of the first signal after receiving the M0 OFDM symbols, where 1≤M0≤M.

[0254] In some embodiments, after the base station determines the LOS / NLOS state between the terminal and the base station, the following actions are performed:

[0255] If the base station determines that the terminal and the base station are in an NLOS state, and the terminal and the base station were previously considered to be in an LOS state, the base station sends first signaling to the terminal, and the first signaling is used to notify (or activate) the terminal to receive the second signal sent by the base station.

[0256] If the base station determines that the terminal and the base station are in an LOS state, and the terminal and the base station were previously considered to be in an NLOS state (i.e., the second signal is in an activated state), the base station sends second signaling to the terminal, and the second signaling is used to notify the terminal to stop (or deactivate) receiving the second signal sent by the base station.

[0257] If the base station judges that the terminal and the base station are in the NLOS state, and the terminal and the base station are considered to be in the NLOS state before (i.e., the second signal is in the activated state), no action is taken.

[0258] If the base station judges that the terminal and the base station are in the LOS state, and the terminal and the base station are considered to be in the LOS state before, no action is taken.

[0259] Wherein, the state between the terminal and the base station before is the state between the terminal and the base station at the first time in the above embodiment.

[0260] The first signaling and / or the second signaling can be DCI, MAC CE, RRC signaling, NAS signaling, etc.

[0261] The second signal is used to configure the first signal to perform round trip measurement, and is used to extract or suppress the timing starting point deviation suffered by the first signal received by the base station.

[0262] Wherein, the terminal and the base station are considered to be in the NLOS state before or the terminal and the base station are considered to be in the LOS state before can be the default state when the perception measurement just starts, or can be judged by the base station in the previous perception process.

[0263] In some embodiments, before the base station sends the second signal to the terminal, the base station sends the configuration information of the second signal to the terminal.

[0264] Specifically, it can be:

[0265] Before the base station sends the first signal, the base station sends the configuration information of the first signal to the terminal, and at the same time, the configuration information of the second signal is sent to the terminal; however, the transmission of the second signal is not activated, and only the transmission of the first signal is activated.

[0266] Or, after the base station receives the first indication information, the base station sends the configuration information of the second signal to the terminal and activates the transmission of the second signal.

[0267] Obviously, it is a preferred scheme that the base station sends the configuration information of the second signal together with the configuration information of the first signal. Because the base station sends the configuration information of the second signal through RRC signaling, there will be a relatively large end-to-end delay.

[0268] Embodiment three:

[0269] This embodiment describes sidelink perception or inter-base station perception, and specifically includes the following:

[0270] The first device receives the first signal sent by the second device, and judges the LOS / NLOS state based on the measurement of part or all OFDM symbols of the first signal.

[0271] The first signal is used to perform a sensing measurement, and the first signal includes M OFDM symbols in a time domain, where M≥1.

[0272] After the first device receives M0 OFDM symbols of the first signal, the first device determines whether the first device and the second device are in a LOS state or a NLOS state based on a measurement on the M0 OFDM symbols, where 1≤M0≤M.

[0273] In the sidelink sensing case, the first device is terminal 1, and the second device is terminal 2.

[0274] In the inter-base station sensing case, the first device is base station 1, and the second device is base station 2.

[0275] In some embodiments, after the LOS / NLOS state is determined, the first device can have one of the following actions:

[0276] Option 1: The first device reports first indication information to a sensing function network element (i.e., the third device in the above embodiment), and the first indication information is used to indicate the LOS / NLOS state between the first device and the second device. For example, the first indication information includes one bit, where bit ‘1’ represents the LOS state, and bit ‘0’ represents the NLOS state.

[0277] Option 2: In the NLOS state, the first device reports the first indication information to the sensing function network element; and in the LOS state, the first device does not report the first indication information. Here, the first indication information is used to indicate that the first device and the second device are in the NLOS state.

[0278] In the sidelink sensing case, the sensing function network element can be a base station.

[0279] In the inter-base station sensing case, the sensing function network element can be a core network device.

[0280] In some embodiments, after the sensing function network element receives the first indication information, the sensing function network element has the following action options:

[0281] If the first indication information indicates that the first device and the second device are in the NLOS state, and it was previously believed that the first device and the second device were in the LOS state, the sensing function network element sends fifth signaling and seventh signaling to the first device and the second device, respectively, where the fifth signaling is used to notify (or activate) the first device to send a second signal to the second device, i.e., to activate the first device to send the second signal, and the seventh signaling is used to activate the second device to receive the second signal.

[0282] If the first indication information indicates that the first device and the second device are in the LOS state, and it is previously considered that the first device and the second device are in the NLOS state (i.e., the second signal is in the activated state), the awareness function network element sends sixth signaling and eighth signaling to the first device and the second device respectively, wherein the sixth signaling is used to inform the first device to stop (or deactivate) sending the second signal to the second device, and the eighth signaling is used to inform the second device to stop receiving the second signal;

[0283] If the first indication information indicates that the first device and the second device are in the NLOS state, and it is previously considered that the first device and the second device are in the NLOS state (i.e., the second signal is in the activated state), no action is taken.

[0284] If the first indication information indicates that the first device and the second device are in the LOS state, and it is previously considered that the first device and the second device are in the LOS state, no action is taken.

[0285] Wherein, the state between the terminal and the base station before is the state between the terminal and the base station at the first time in the above embodiment.

[0286] The second signal is used to cooperate with the first signal to perform round trip measurement, and is used to extract or suppress the timing starting point deviation suffered by the first signal received by the first device.

[0287] In the case of sidelink awareness, at least one of the fifth signaling, the sixth signaling, the seventh signaling and the eighth signaling can be DCI, MAC CE, RRC signaling, NAS signaling, etc.

[0288] Wherein, the previously considered NLOS state between the first device and the second device or the previously considered LOS state between the first device and the second device can be the default state when the awareness measurement just starts, or can be determined by the first indication information reported by the first device to the awareness function network element in the previous awareness process.

[0289] In some embodiments, before the first device sends the second signal to the second device, the awareness function network element sends configuration information of the second signal to the first device and the second device.

[0290] Specifically, it can be:

[0291] When the awareness function network element sends the configuration information of the first signal to the first device and the second device before the second device sends the first signal, the configuration information of the second signal is also sent to the first device and the second device; however, the transmission of the second signal is not activated, and only the transmission of the first signal is activated.

[0292] Alternatively, after the awareness function network element receives the first indication information, the awareness function network element sends the configuration information of the second signal to the first device and the second device, and activates the transmission of the second signal.

[0293] Obviously, it is a preferred solution that the awareness function network element sends the configuration information of the second signal together with the configuration information of the first signal. Because sending the configuration information of the second signal will have a relatively large end-to-end delay.

[0294] Embodiment Four

[0295] This embodiment mainly describes the typical implementation of the method provided by the embodiments of the application.

[0296] This embodiment shows several typical implementation methods to facilitate the understanding of the solutions described in the foregoing embodiments.

[0297] As described above, the first signal is used to perform awareness measurement, and the second signal is used to configure the first signal to perform round-trip measurement to suppress or extract the timing starting point deviation suffered by the first signal.

[0298] The span of the first signal in the time domain for performing one awareness measurement and obtaining awareness results is referred to as a coherent processing interval (CPI) or an awareness frame. One CPI or awareness frame occupies M OFDM symbols in the time domain, and M>1. In the duration of one CPI, the method provided by the embodiments of the application can be performed in one of the following manners:

[0299] Manner 1: The LOS / NLOS state is determined after M0 (M0

[0300] In some embodiments, measuring one or more OFDM symbols is sufficient to determine the LOS / NLOS state, and then the activation or deactivation of the second signal can be performed within the current CPI of the first signal. Since one CPI is usually on the order of ten milliseconds to one hundred milliseconds, this operation is usually achievable.

[0301] The advantage of this operation manner is that the timing starting point deviation can be suppressed or extracted based on the second signal in the current CPI.

[0302] Manner 2: The LOS / NLOS state is determined after M OFDM symbols, and the activation or deactivation of the second signal is performed within a short time after the duration of the current CPI, as shown in (b) of FIG. 6.

[0303] In some embodiments, the first device needs to perform the operation related to the LOS / NLOS state determination after the completion of the reception of the first signal of a CPI, and then activate or deactivate the second signal, which performs the round trip measurement with the first signal of the current CPI to extract or suppress the timing start point deviation.

[0304] In some cases, for example, when the timing drift of the first device and the second device is small, the second signal within a certain time after the first signal of a CPI can be used to suppress or extract the timing start point deviation with sufficient accuracy.

[0305] Option 3: The LOS / NLOS state determination is performed after M OFDM symbols, and the activation or deactivation of the second signal is performed within the next CPI, as shown in (c) of FIG. 6.

[0306] It should be noted that the first device in the embodiment can be the terminal in the first embodiment, the base station in the second embodiment, the terminal 1 or the base station 1 in the third embodiment. The second device in the embodiment can be the base station in the first embodiment, the terminal in the second embodiment, the terminal 2 or the base station 2 in the third embodiment.

[0307] The state determination method provided in the embodiments of the present application can be executed by a state determination device. In the embodiments of the present application, the state determination method is executed by the state determination device as an example, and the state determination device provided in the embodiments of the present application is described.

[0308] The state determination device provided in the embodiments of the present application can be a communication device or a component in the communication device, for example, 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 the terminal 11 listed above, the network side device can include but is not limited to the types of the network side device 12 listed above, and the embodiments of the present application do not make specific limitations.

[0309] The state determining 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, which can include a general-purpose processor, a special-purpose processor, etc., 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 device, a gate circuit, a transistor, a discrete hardware component, etc. The receiving module and the sending module can be implemented by a communication interface, which can include one or more of a transceiver, a pin, a circuit, a bus, a radio frequency unit, etc.

[0310] Specifically, referring to FIG. 7, when the state determining apparatus is a terminal or a component in the terminal, or the state determining apparatus is a network side device or a component in the network side device, the state determining apparatus 700 includes:

[0311] The receiving module 701 is configured to receive a first signal sent by a second device, the first signal being used for sensing measurement.

[0312] The processing module 702 is configured to determine a state between the first device and the second device based on the first signal, the state between the first device and the second device being a line of sight (LOS) state or a non-line of sight (NLOS) state.

[0313] The activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal sent by the first device and used for round trip measurement in cooperation with the first signal.

[0314] Optionally, the apparatus further includes a sending module, which is configured to perform one of the following:

[0315] sending first indication information to the second device or a third device, the first indication information being used to indicate related information of the state between the first device and the second device; or

[0316] The first signaling is used to activate receiving the second signal, and the second signaling is used to deactivate receiving the second signal.

[0317] Optionally, the first indication information is used to indicate that a state between the first device and the second device is a LOS state or a NLOS state.

[0318] The first indication information is used to indicate that a state between the first device and the second device changes.

[0319] The first indication information is sent in a case where the state between the first device and the second device is a NLOS state, and is used to indicate that the state between the first device and the second device is a NLOS state.

[0320] Optionally, in a case where the first indication information is sent to the second device, the receiving module is further used to at least one of the following:

[0321] In a case where the first indication information indicates that the state between the first device and the second device is a NLOS state, and the state between the first device and the second device is a LOS state at a first time, the receiving module is further used to receive third signaling sent by the second device, the third signaling being used to activate sending the second signal to the second device.

[0322] In a case where the first indication information indicates that the state between the first device and the second device is a LOS state, and the state between the first device and the second device is a NLOS state at a first time, the receiving module is further used to receive fourth signaling sent by the second device, the fourth signaling being used to deactivate sending the second signal to the second device.

[0323] Or,

[0324] In a case where the first indication information is sent to the third device, the receiving module is further used to at least one of the following:

[0325] In a case where the first indication information indicates that the state between the first device and the second device is a NLOS state, and the state between the first device and the second device is a LOS state at a first time, the receiving module is further used to receive fifth signaling sent by the third device, the fifth signaling being used to activate sending the second signal to the second device.

[0326] in a case where the first indication information indicates that the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, the first device receives sixth signaling sent by the third device, the sixth signaling being used to deactivate sending of the second signal to the second device;

[0327] wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0328] Optionally, the sending module is configured to:

[0329] in a case where the state between the first device and the second device is the NLOS state and the state between the first device and the second device at the first time is the LOS state, send the first signaling to the second device; or

[0330] in a case where the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, send the second signaling to the second device.

[0331] wherein the first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device determined by the first device.

[0332] Optionally, the receiving module 701 is further configured to receive configuration information of the second signal sent by the second device or the third device; or

[0333] The sending module of the apparatus is further configured to send the configuration information of the second signal to the second device.

[0334] The above state determination apparatus is beneficial to improving the sensing performance.

[0335] The state determination apparatus provided in 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.

[0336] Specifically, referring to FIG. 8, when the state determination apparatus is a terminal or a component in the terminal or the state determination apparatus is a network side device or a component in the network side device, the state determination apparatus 800 includes:

[0337] The sending module 801 is configured to send a first signal to a first device, the first signal being used for sensing measurement and for determining a state between the first device and a second device, the state between the first device and the second device being a line-of-sight (LOS) state or a non-line-of-sight (NLOS) state.

[0338] The activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal received by the second device and used for round-trip measurement in cooperation with the first signal.

[0339] Optionally, the apparatus further includes a receiving module, which is further configured to perform one of the following:

[0340] receive first indication information sent by the first device, the first indication information being used to indicate related information of the state between the first device and the second device; or

[0341] receive first signaling or second signaling sent by the first device, the first signaling being used to activate reception of the second signal, and the second signaling being used to deactivate reception of the second signal; or

[0342] receive seventh signaling or eighth signaling sent by a third device, the seventh signaling being used to activate reception of the second signal, and the eighth signaling being used to deactivate reception of the second signal.

[0343] Optionally, the first indication information is used to indicate that the state between the first device and the second device is an LOS state or an NLOS state; or

[0344] the first indication information is used to indicate that the state between the first device and the second device changes; or

[0345] the first indication information is sent in a case where the state between the first device and the second device is an NLOS state, and is used to indicate that the state between the first device and the second device is an NLOS state.

[0346] Optionally, the sending module is further configured to perform at least one of the following:

[0347] in a case where the first indication information indicates that the state between the first device and the second device is an NLOS state, and the state between the first device and the second device is an LOS state at a first time, send third signaling to the first device, the third signaling being used to activate sending of a second signal to the second device;

[0348] in a case where the first indication information indicates that the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, sending fourth signaling to the first device, the fourth signaling being used to deactivate sending of the second signal to the second device;

[0349] The first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0350] Optionally, the receiving module is further configured to perform at least one of the following:

[0351] in a case where the state between the first device and the second device is the NLOS state and the state between the first device and the second device at the first time is the LOS state, receiving the first signaling sent by the first device; or

[0352] in a case where the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, receiving the second signaling sent by the first device;

[0353] The first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device.

[0354] Optionally, the receiving module is configured to perform one of the following:

[0355] in a case where the state between the first device and the second device is the NLOS state and the state between the first device and the second device at the first time is the LOS state, receiving the seventh signaling sent by the third device; or

[0356] in a case where the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, receiving the eighth signaling sent by the third device;

[0357] The first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device.

[0358] Optionally, the sending module 801 is configured to send configuration information of the second signal to the first device; or

[0359] The receiving module of the apparatus is further configured to receive configuration information of the second signal sent by the first device or the third device.

[0360] The state determination apparatus is beneficial to improve the perception performance.

[0361] The state determination apparatus provided by the embodiments of the present application can implement each process implemented by the method embodiment of FIG. 4 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0362] Referring to FIG. 9, when the state determination apparatus is a terminal or a component in the terminal or the state determination apparatus is a network side device or a component in the network side device, the state determination apparatus 900 includes:

[0363] The receiving module 901 is configured to receive first indication information sent by the first device, the first indication information being used to indicate related information of a state between the first device and the second device, the state between the first device and the second device being a line of sight (LOS) state or a non line of sight (NLOS) state.

[0364] Optionally, the first indication information is used to indicate that the state between the first device and the second device is the LOS state or the NLOS state.

[0365] The first indication information is used to indicate that the state between the first device and the second device changes.

[0366] The first indication information is sent in a case where the state between the first device and the second device is the NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

[0367] Optionally,

[0368] The apparatus further includes a sending module, which is further configured to perform at least one of the following:

[0369] In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state and the state between the first device and the second device is the LOS state at a first time, fifth signaling is sent to the first device, the fifth signaling being used to activate sending of a second signal to the second device.

[0370] In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state and the state between the first device and the second device is the LOS state at a first time, seventh signaling is sent to the second device, the seventh signaling being used to activate receiving of a second signal.

[0371] in a case where the first indication information indicates that the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, sending sixth signaling to the first device, the sixth signaling being used to deactivate sending of the second signal to the second device;

[0372] in a case where the first indication information indicates that the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, sending eighth signaling to the second device, the eighth signaling being used to deactivate receiving of the second signal;

[0373] wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0374] Optionally, the apparatus further includes a sending module that is further configured to send configuration information of the second signal to at least one of the first device and the second device.

[0375] The state determination apparatus described above is beneficial to improving the perception performance.

[0376] The state determination apparatus provided in the embodiments of the present application can implement each process implemented by the method embodiment of FIG. 5 and achieve the same technical effects. To avoid repetition, details are not described herein.

[0377] As shown in FIG. 10, the embodiments of the present application further provide a communication device 1000, which includes a processor 1001 and a memory 1002, and the memory 1002 stores programs or instructions that can be run on the processor 1001. For example, when the communication device 1000 is a first device, the programs or instructions are executed by the processor 1001 to implement each step of the state determination method embodiment of the first device side described above and achieve the same technical effects. When the communication device 1000 is a second device, the programs or instructions are executed by the processor 1001 to implement each step of the state determination method embodiment of the second device side described above and achieve the same technical effects. When the communication device 1000 is a third device, the programs or instructions are executed by the processor 1001 to implement each step of the state determination method embodiment described above and achieve the same technical effects. To avoid repetition, details are not described herein.

[0378] The embodiment of the present application further provides a device comprising a processor and a communication interface, the communication interface and the processor are coupled, the processor is used to run programs or instructions, and the steps in the method embodiment shown in FIG. 3 are realized. The device embodiment corresponds to the state determination 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. The device can be the state determination apparatus shown in FIG. 7. Specifically, FIG. 11 is a schematic diagram of the hardware structure of a device for implementing the embodiment of the present application, and the device is a first device.

[0379] The device 1100 includes, but is not limited to, at least part of components such as a radio frequency unit 1101, a network module 1102, an audio output unit 1103, an input unit 1104, a sensor 1105, a display unit 1106, a user input unit 1107, an interface unit 1108, a memory 1109, and a processor 1110.

[0380] Those skilled in the art can understand that the device 1100 can further 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 1110 through a power management system, so as to realize functions such as management of charging, discharging, and power consumption management through the power management system. The device structure shown in FIG. 11 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.

[0381] It should be understood that in the embodiment of the present application, the input unit 1104 can include a graphics processor 11041 and a microphone 11042, and the graphics processor 11041 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 1106 can include a display panel 11061, which can be configured in the form of a liquid crystal display, an organic light-emitting diode, etc. The user input unit 1107 includes at least one of a touch panel 11071 and other input devices 11072. The touch panel 11071 is also called a touch screen. The touch panel 11071 can include two parts of a touch detection device and a touch controller. The other input devices 11072 can include, but are not limited to, a physical keyboard, function keys (such as volume control keys, on-off keys, etc.), a trackball, a mouse, a joystick, etc., which will not be described here.

[0382] In the embodiment of the present application, after the radio frequency unit 1101 receives downlink data from a network side device, the downlink data can be transmitted to the processor 1110 for processing. In addition, the radio frequency unit 1101 can send uplink data to the network side device. Generally, the radio frequency unit 1101 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low noise amplifier, a duplexer, etc.

[0383] The memory 1109 can be used to store software programs or instructions and various data. The memory 1109 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 1109 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 1109 in the embodiments of the present application includes but is not limited to these and any other suitable types of memory.

[0384] The processor 1110 can include one or more processing units; optionally, the processor 1110 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 1110.

[0385] The radio frequency unit 1101 is configured to receive a first signal sent by a second device, the first signal being used for sensing measurement;

[0386] The processor 1110 is configured to determine a state between the first device and the second device based on the first signal, the state between the first device and the second device being a Line of Sight (LOS) state or a Non-Line of Sight (NLOS) state.

[0387] wherein the activation or deactivation of the second signal is determined based on a state between the first device and the second device, the second signal being transmitted by the first device and used for round-trip measurement in cooperation with the first signal.

[0388] Optionally, the radio frequency unit 1101 is further configured to perform at least one of the following:

[0389] send first indication information to the second device or the third device, the first indication information being used to indicate related information of the state between the first device and the second device; or

[0390] send first signaling or second signaling to the second device, the first signaling being used to activate receiving the second signal, and the second signaling being used to deactivate receiving the second signal.

[0391] Optionally, the first indication information is used to indicate that the state between the first device and the second device is the LOS state or the NLOS state; or

[0392] the first indication information is used to indicate that the state between the first device and the second device changes; or

[0393] the first indication information is sent in the case that the state between the first device and the second device is the NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

[0394] Optionally, in the case that the first indication information is sent to the second device, the radio frequency unit 1101 is further configured to perform at least one of the following:

[0395] in the case that the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, receive third signaling sent by the second device, the third signaling being used to activate sending the second signal to the second device;

[0396] in the case that the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, receive fourth signaling sent by the second device, the fourth signaling being used to deactivate sending the second signal to the second device;

[0397] wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0398] Optionally, in the case that the first indication information is sent to the third device, the RF unit 1101 is further configured to perform at least one of the following:

[0399] In the case that the first indication information indicates that the state between the first device and the second device is an NLOS state, and the state between the first device and the second device at the first time is an LOS state, the first device receives fifth signaling sent by the third device, and the fifth signaling is used to activate sending of the second signal to the second device.

[0400] In the case that the first indication information indicates that the state between the first device and the second device is an LOS state, and the state between the first device and the second device at the first time is an NLOS state, the first device receives sixth signaling sent by the third device, and the sixth signaling is used to deactivate sending of the second signal to the second device.

[0401] The first time is a time before the second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0402] Optionally, sending the first signaling or the second signaling to the second device comprises:

[0403] In the case that the state between the first device and the second device is an NLOS state, and the state between the first device and the second device at the first time is an LOS state, the first signaling is sent to the second device; or

[0404] In the case that the state between the first device and the second device is an LOS state, and the state between the first device and the second device at the first time is an NLOS state, the second signaling is sent to the second device.

[0405] The first time is a time before the third time, and the second time is a time corresponding to the state between the first device and the second device determined by the first device.

[0406] Optionally, the RF unit 1101 is further configured to:

[0407] receive configuration information of the second signal sent by the second device or the third device; or

[0408] send the configuration information of the second signal to the second device.

[0409] The above device is beneficial to improving the perception performance.

[0410] It can be understood that the implementation process of each implementation mode mentioned in the embodiment can refer to the related description of the state determination method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0411] It should be noted that the first device is taken as a terminal for 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. 4.

[0412] The embodiment of the application further provides a device including a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG. 4. The device embodiment corresponds to the state determination method embodiment, and each implementation process and implementation mode of the method embodiment can be applied to the device embodiment and can achieve the same technical effects.

[0413] Specifically, the embodiment of the application further provides a device, which is a second device, and the device can be the state determination apparatus shown in FIG. 8. As shown in FIG. 12, the device 1200 includes an antenna 1201, a radio frequency apparatus 1202, a baseband apparatus 1203, a processor 1204 and a memory 1205. The antenna 1201 is connected with the radio frequency apparatus 1202. In the uplink direction, the radio frequency apparatus 1202 receives information through the antenna 1201, and sends the received information to the baseband apparatus 1203 for processing. In the downlink direction, the baseband apparatus 1203 processes the information to be sent and sends it to the radio frequency apparatus 1202, and the radio frequency apparatus 1202 processes the received information and sends it out through the antenna 1201.

[0414] The method performed by the device in the above embodiment can be implemented in the baseband apparatus 1203, which includes a baseband processor.

[0415] The baseband apparatus 1203 may, for example, include at least one baseband board, and a plurality of chips are arranged on the baseband board, as shown in FIG. 12, one of the chips is a baseband processor, for example, which is connected with the memory 1205 through a bus interface to call programs in the memory 1205 and perform the network device operation shown in the above method embodiment.

[0416] The device can further include a network interface 1206, which is a common public radio interface (CPRI), for example.

[0417] Specifically, the device 1200 in the embodiments of the present application further includes instructions or programs stored on the memory 1205 and executable on the processor 1204, the processor 1204 invokes the instructions or programs in the memory 1205 to perform the method performed by each module shown in FIG. 8 and achieve the same technical effects, to avoid repetition, therefore, will not be elaborated here.

[0418] The radio frequency device 1202 is configured to transmit a first signal to a first device, the first signal being used for sensing measurement, and determine a state between the first device and a second device, the state between the first device and the second device being a line of sight (LOS) state or a non-line of sight (NLOS) state.

[0419] The activation or deactivation of the second signal is determined based on the state between the first device and the second device, the second signal being a signal received by the second device and used for round trip measurement in cooperation with the first signal.

[0420] Optionally, the radio frequency device 1202 is further configured to perform one of the following:

[0421] receive first indication information transmitted by the first device, the first indication information being used to indicate related information of the state between the first device and the second device; or

[0422] receive first signaling or second signaling transmitted by the first device, the first signaling being used to activate receiving the second signal, and the second signaling being used to deactivate receiving the second signal; or

[0423] receive seventh signaling or eighth signaling transmitted by a third device, the seventh signaling being used to activate receiving the second signal, and the eighth signaling being used to deactivate receiving the second signal.

[0424] Optionally, the first indication information is used to indicate that the state between the first device and the second device is an LOS state or an NLOS state; or

[0425] The first indication information is used to indicate that the state between the first device and the second device changes; or

[0426] The first indication information is transmitted in the case that the state between the first device and the second device is an NLOS state, and is used to indicate that the state between the first device and the second device is an NLOS state.

[0427] Optionally, the radio frequency device 1202 is further configured to perform at least one of the following:

[0428] in a case where the first indication information indicates that the state between the first device and the second device is an NLOS state and the state between the first device and the second device at a first time is an LOS state, sending third signaling to the first device, the third signaling being used to activate sending of the second signal to the second device;

[0429] in a case where the first indication information indicates that the state between the first device and the second device is an LOS state and the state between the first device and the second device at a first time is an NLOS state, sending fourth signaling to the first device, the fourth signaling being used to deactivate sending of the second signal to the second device;

[0430] wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

[0431] Optionally, receiving the first signaling or the second signaling sent by the first device comprises:

[0432] in a case where the state between the first device and the second device is an NLOS state and the state between the first device and the second device at a first time is an LOS state, receiving the first signaling sent by the first device; or

[0433] in a case where the state between the first device and the second device is an LOS state and the state between the first device and the second device at a first time is an NLOS state, receiving the second signaling sent by the first device;

[0434] wherein the first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device.

[0435] Optionally, receiving the seventh signaling or the eighth signaling sent by the third device comprises:

[0436] in a case where the state between the first device and the second device is an NLOS state and the state between the first device and the second device at a first time is an LOS state, receiving the seventh signaling sent by the third device; or

[0437] in a case where the state between the first device and the second device is an LOS state and the state between the first device and the second device at a first time is an NLOS state, receiving the eighth signaling sent by the third device;

[0438] The first time point is a time point before the third time point, and the third time point is a time point corresponding to the state between the first device and the second device.

[0439] Optionally, the radio frequency device 1202 is further configured to:

[0440] send configuration information of the second signal to the first device; or

[0441] receive the configuration information of the second signal sent by the first device or the third device.

[0442] The device is beneficial to improve the sensing performance.

[0443] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the state determination method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, it will not be repeated here.

[0444] 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.

[0445] The embodiment of the application further provides a device including a processor and a communication interface, the communication interface and the processor are coupled, and the processor is used to run programs or instructions to implement the steps of the method embodiment shown in FIG. 5. The device embodiment corresponds to the state determination method embodiment, and each implementation process and implementation manner of the method embodiment can be applied to the device embodiment and can achieve the same technical effects.

[0446] Specifically, the embodiment of the application further provides a network side device, which is a third device. As shown in FIG. 13, the network side device 1300 includes a processor 1301, a network interface 1302 and a memory 1303. The network interface 1302 is, for example, a common public radio interface (CPRI).

[0447] Specifically, the network side device 1300 of the embodiment of the application further includes instructions or programs stored in the memory 1303 and executable on the processor 1301. The processor 1301 invokes the instructions or programs in the memory 1303 to execute the method performed by each module shown in FIG. 9, and achieves the same technical effects. To avoid repetition, it will not be repeated here.

[0448] The network interface 1302 is configured to receive first indication information sent by the first device, the first indication information being used to indicate related information of a state between the first device and the second device, and the state between the first device and the second device being a line of sight (LOS) state or a non line of sight (NLOS) state.

[0449] Optionally, the first indication information is used to indicate that the state between the first device and the second device is the LOS state or the NLOS state.

[0450] The first indication information is used to indicate that the state between the first device and the second device changes.

[0451] The first indication information is sent in a case where the state between the first device and the second device is the NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

[0452] Optionally, the network interface 1302 is further configured to perform at least one of the following:

[0453] In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, the network interface 1302 is configured to send fifth signaling to the first device, the fifth signaling being used to activate sending of a second signal to the second device.

[0454] In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, the network interface 1302 is configured to send seventh signaling to the second device, the seventh signaling being used to activate receiving of the second signal.

[0455] In a case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, the network interface 1302 is configured to send sixth signaling to the first device, the sixth signaling being used to deactivate sending of the second signal to the second device.

[0456] In a case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, the network interface 1302 is configured to send eighth signaling to the second device, the eighth signaling being used to deactivate receiving of the second signal.

[0457] The first time point is a time point before the second time point, and the second time point is a time point corresponding to a state between the first device and the second device indicated by the first indication information.

[0458] Optionally, the network interface 1302 is further configured to send configuration information of the second signal to at least one of the first device and the second device.

[0459] The device facilitates improvement of the sensing performance.

[0460] It can be understood that the implementation process of each implementation manner mentioned in the embodiment can refer to the related description of the state determination method embodiment, and achieve the same or corresponding technical effects. To avoid repetition, details are not repeated here.

[0461] The embodiment of the application further provides a readable storage medium, and the readable storage medium stores a program or instructions, the program or instructions are executed by a processor to implement each process of the state determination method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not repeated here.

[0462] The processor is the processor in the terminal in the above embodiments. 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.

[0463] The embodiment of the application further provides a chip, and the chip includes a processor and a communication interface. The communication interface is coupled with the processor. The processor is configured to run a program or instructions to implement each process of the state determination method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not repeated here.

[0464] It should be understood that the chip mentioned in the embodiment of the application can also be referred to as a system chip, a system chip, a chip system, or a system on chip, etc.

[0465] The embodiment of the application further provides a computer program / program product, which is stored in a storage medium. The computer program / program product is executed by at least one processor to implement each process of the state determination method embodiment, and the same technical effects can be achieved. To avoid repetition, details are not repeated here.

[0466] The embodiments of the present application further provide 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 for executing the steps of the state determination method on the first device side provided by the embodiments of the present application, the second device can be used for executing the steps of the state determination method on the second device side provided by the embodiments of the present application, and the third device can be used for executing the steps of the state determination method on the third device side provided by the embodiments of the present application.

[0467] It should be noted that, in this document, the terms "comprising", "including", or any other variant thereof are intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements do not include only those elements recited, but also other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that includes the element. In addition, it should be noted that the scope of the methods and apparatuses in the embodiments of the present application is not limited to performing functions in the order recited in the specification or discussed in the figures. The methods and apparatuses can also include performing functions in a substantially simultaneous manner or in the reverse order to the described methods, for example, the described methods can be performed in a different order from the described order, and various steps can be added, omitted, or combined. In addition, features described with reference to certain examples can be combined in other examples.

[0468] From the above description of the embodiments, those skilled in the art can clearly understand that the above-mentioned embodiment methods can be realized by means of computer software products and general hardware platforms, of course, they can also be realized by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disc, optical disc, etc.), and includes a plurality of instructions for making the terminal or network side device execute the method described in each embodiment of the present application.

[0469] The embodiments of the present application are described above in combination with the drawings, but the present application is not limited to the above-mentioned specific embodiments, the above-mentioned specific embodiments are only illustrative, not restrictive, and 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.

Claims

1. A state determination method, comprising: receiving, by a first device, a first signal transmitted by a second device, the first signal being used for sensing measurement; determining, by the first device, a state between the first device and the second device based on the first signal, the state between the first device and the second device being a line-of-sight (LOS) state or a non-line-of-sight (NLOS) state; wherein activation or deactivation of a second signal transmitted by the first device and used for round-trip measurement in cooperation with the first signal is determined based on the state between the first device and the second device.

2. The method of claim 1, wherein, The method further comprises one of the following: sending, by the first device, first indication information to the second device or a third device, the first indication information being used to indicate related information of the state between the first device and the second device; or sending, by the first device, first signaling or second signaling to the second device, the first signaling being used to activate reception of the second signal, and the second signaling being used to deactivate reception of the second signal.

3. The method of claim 2, wherein, The first indication information is used to indicate that the state between the first device and the second device is the LOS state or the NLOS state; or The first indication information is used to indicate that the state between the first device and the second device changes; or The first indication information is sent in a case where the state between the first device and the second device is the NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

4. The method of claim 2 or 3, wherein, In a case where the first indication information is sent to the second device, the method further comprises at least one of the following: In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, receiving, by the first device, third signaling transmitted by the second device, the third signaling being used to activate transmission of the second signal to the second device; In a case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, receiving, by the first device, fourth signaling transmitted by the second device, the fourth signaling being used to deactivate transmission of the second signal to the second device; wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

5. The method of claim 2 or 3, wherein, In a case where the first indication information is sent to the third device, the method further comprises at least one of the following: In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, receiving, by the first device, fifth signaling transmitted by the third device, the fifth signaling being used to activate transmission of the second signal to the second device; in a case where the first indication information indicates that the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, the first device receives sixth signaling sent by the third device, the sixth signaling being used for deactivating sending of the second signal to the second device; wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

6. The method of claim 2, wherein, The first device sending the first signaling or the second signaling to the second device comprises: in a case where the state between the first device and the second device is the NLOS state and the state between the first device and the second device at the first time is the LOS state, the first device sends the first signaling to the second device; or in a case where the state between the first device and the second device is the LOS state and the state between the first device and the second device at the first time is the NLOS state, the first device sends the second signaling to the second device; wherein the first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device determined by the first device.

7. The method of any one of claims 2 to 6, wherein, The method further comprises: the first device receiving configuration information of the second signal sent by the second device or the third device; or the first device sending the configuration information of the second signal to the second device.

8. A state determination method, comprising: a second device sending a first signal to a first device, the first signal being used for sensing measurement and for determining a state between the first device and the second device, the state between the first device and the second device being a line-of-sight (LOS) state or a non-line-of-sight (NLOS) state; wherein activation or deactivation of a second signal received by the second device and used for round-trip measurement in cooperation with the first signal is determined based on the state between the first device and the second device.

9. The method of claim 8, wherein, The method further comprises one of the following: the second device receiving first indication information sent by the first device, the first indication information being used for indicating related information of the state between the first device and the second device; or the second device receiving first signaling or second signaling sent by the first device, the first signaling being used for activating reception of the second signal, and the second signaling being used for deactivating reception of the second signal; or the second device receiving seventh signaling or eighth signaling sent by a third device, the seventh signaling being used for activating reception of the second signal, and the eighth signaling being used for deactivating reception of the second signal.

10. The method of claim 9, wherein, the first indication information is used for indicating that the state between the first device and the second device is the LOS state or the NLOS state; or the first indication information is used for indicating that the state between the first device and the second device changes; or the first indication information is used for indicating that the state between the first device and the second device changes; or The first indication information is sent in a case where a state between the first device and the second device is an NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

11. The method of claim 9 or 10, wherein, The method further comprises at least one of the following: In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, the second device sends third signaling to the first device, and the third signaling is used to activate sending of the second signal to the second device; In a case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, the second device sends fourth signaling to the first device, and the fourth signaling is used to deactivate sending of the second signal to the second device; The first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

12. The method of claim 9, wherein, The second device receiving the first signaling or the second signaling sent by the first device comprises: In a case where the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, the second device receives the first signaling sent by the first device; or In a case where the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, the second device receives the second signaling sent by the first device; The first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device.

13. The method of claim 9, wherein, The second device receiving the seventh signaling or the eighth signaling sent by the third device comprises: In a case where the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, the second device receives the seventh signaling sent by the third device; or In a case where the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, the second device receives the eighth signaling sent by the third device; The first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device.

14. The method of any one of claims 9 to 13, wherein, The method further comprises: The second device sending configuration information of the second signal to the first device; or The second device receiving configuration information of the second signal sent by the first device or the third device.

15. A state determination method, comprising: The third device receives first indication information sent by the first device, the first indication information being used to indicate related information of a state between the first device and the second device, the state between the first device and the second device being a line of sight (LOS) state or a non line of sight (NLOS) state.

16. The method of claim 15, wherein, The first indication information is used to indicate that the state between the first device and the second device is the LOS state or the NLOS state. The first indication information is used to indicate that the state between the first device and the second device changes. The first indication information is sent in a case where the state between the first device and the second device is the NLOS state, and is used to indicate that the state between the first device and the second device is the NLOS state.

17. The method of claim 15 or 16, wherein, The method further includes at least one of the following: In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, the third device sends fifth signaling to the first device, the fifth signaling being used to activate sending of the second signal to the second device; In a case where the first indication information indicates that the state between the first device and the second device is the NLOS state, and the state between the first device and the second device is the LOS state at a first time, the third device sends seventh signaling to the second device, the seventh signaling being used to activate receiving of the second signal; In a case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, the third device sends sixth signaling to the first device, the sixth signaling being used to deactivate sending of the second signal to the second device; In a case where the first indication information indicates that the state between the first device and the second device is the LOS state, and the state between the first device and the second device is the NLOS state at a first time, the third device sends eighth signaling to the second device, the eighth signaling being used to deactivate receiving of the second signal; The first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

18. The method of any one of claims 15-17, wherein, The method further includes: The third device sends configuration information of the second signal to at least one of the first device and the second device.

19. A state determination apparatus, comprising: a receiving module configured to receive a first signal sent by a second device, the first signal being used for sensing measurement; a processing module configured to determine a state between a first device and the second device based on the first signal, the state between the first device and the second device being a line of sight (LOS) state or a non line of sight (NLOS) state. The activation or deactivation of the second signal is determined based on a state between the first device and the second device, the second signal being transmitted by the first device and used for round trip measurement in cooperation with the first signal.

20. The apparatus of claim 19, wherein, The apparatus further includes a sending module configured to perform one of the following: sending first indication information to the second device or the third device, the first indication information being used to indicate related information of the state between the first device and the second device; or sending first signaling or second signaling to the second device, the first signaling being used to activate receiving the second signal, and the second signaling being used to deactivate receiving the second signal.

21. The apparatus of claim 20, wherein, In the case of sending the first indication information to the second device, the receiving module is further configured to perform at least one of the following: in the case of the first indication information indicating that the state between the first device and the second device is an NLOS state, and the state between the first device and the second device at a first time being an LOS state, receiving third signaling sent by the second device, the third signaling being used to activate sending the second signal to the second device; in the case of the first indication information indicating that the state between the first device and the second device is an LOS state, and the state between the first device and the second device at a first time being an NLOS state, receiving fourth signaling sent by the second device, the fourth signaling being used to deactivate sending the second signal to the second device; or in the case of sending the first indication information to the third device, the receiving module is further configured to perform at least one of the following: in the case of the first indication information indicating that the state between the first device and the second device is an NLOS state, and the state between the first device and the second device at a first time being an LOS state, the first device receiving fifth signaling sent by the third device, the fifth signaling being used to activate sending the second signal to the second device; in the case of the first indication information indicating that the state between the first device and the second device is an LOS state, and the state between the first device and the second device at a first time being an NLOS state, the first device receiving sixth signaling sent by the third device, the sixth signaling being used to deactivate sending the second signal to the second device; wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information.

22. The apparatus of claim 20, wherein, The sending module is configured to: in the case of the state between the first device and the second device being an NLOS state, and the state between the first device and the second device at a first time being an LOS state, sending the first signaling to the second device; or in the case of the state between the first device and the second device being an LOS state, and the state between the first device and the second device at a first time being an NLOS state, sending the second signaling to the second device; The first time point is a time point before a third time point, and the third time point is a time point at which the first device determines a state between the first device and the second device.

23. A state determination apparatus, comprising: a sending module configured to send a first signal to a first device, the first signal being used for sensing measurement and for determining a state between the first device and a second device, the state between the first device and the second device being a line of sight (LOS) state or a non-line of sight (NLOS) state; wherein activation or deactivation of a second signal is determined based on the state between the first device and the second device, the second signal being a signal received by the second device and used for round trip measurement in cooperation with the first signal.

24. The apparatus of claim 23, wherein, The apparatus further comprises a receiving module, which is further configured to perform one of the following: receive first indication information sent by the first device, the first indication information being used to indicate related information of the state between the first device and the second device; receive first signaling or second signaling sent by the first device, the first signaling being used to activate reception of the second signal, and the second signaling being used to deactivate reception of the second signal; or receive seventh signaling or eighth signaling sent by a third device, the seventh signaling being used to activate reception of the second signal, and the eighth signaling being used to deactivate reception of the second signal.

25. The apparatus of claim 24, wherein, The sending module is further configured to perform at least one of the following: in a case where the first indication information indicates that the state between the first device and the second device is a NLOS state, and the state between the first device and the second device at a first time point is a LOS state, send third signaling to the first device, the third signaling being used to activate sending of a second signal to the second device; in a case where the first indication information indicates that the state between the first device and the second device is a LOS state, and the state between the first device and the second device at a first time point is a NLOS state, send fourth signaling to the first device, the fourth signaling being used to deactivate sending of a second signal to the second device; wherein the first time point is a time point before a second time point, and the second time point is a time point corresponding to the state between the first device and the second device indicated by the first indication information.

26. The apparatus of claim 24, wherein, The receiving module is further configured to perform at least one of the following: in a case where the state between the first device and the second device is a NLOS state, and the state between the first device and the second device at a first time point is a LOS state, receive the first signaling sent by the first device; in a case where the state between the first device and the second device is a LOS state, and the state between the first device and the second device at a first time point is a NLOS state, receive the second signaling sent by the first device; in a case where the state between the first device and the second device is a NLOS state, and the state between the first device and the second device at a first time point is a LOS state, receive the seventh signaling sent by a third device; receive the eighth signaling sent by the third device in a case that the state between the first device and the second device is the LOS state and the state between the first device and the second device is the NLOS state at a first time; wherein the first time is a time before a third time, and the third time is a time corresponding to the state between the first device and the second device. 27.A state determination apparatus, comprising: a receiving module configured to receive first indication information sent by a first device, the first indication information being used to indicate related information of a state between the first device and a second device, the state between the first device and the second device being a line-of-sight (LOS) state or a non-line-of-sight (NLOS) state.

28. The apparatus of claim 27, wherein, The apparatus further comprises a sending module, which is further configured to perform at least one of the following: in a case that the first indication information indicates that the state between the first device and the second device is the NLOS state and the state between the first device and the second device is the LOS state at a first time, send fifth signaling to the first device, the fifth signaling being used to activate sending of a second signal to the second device; in a case that the first indication information indicates that the state between the first device and the second device is the NLOS state and the state between the first device and the second device is the LOS state at a first time, send seventh signaling to the second device, the seventh signaling being used to activate receiving of the second signal; in a case that the first indication information indicates that the state between the first device and the second device is the LOS state and the state between the first device and the second device is the NLOS state at a first time, send sixth signaling to the first device, the sixth signaling being used to deactivate sending of the second signal to the second device; in a case that the first indication information indicates that the state between the first device and the second device is the LOS state and the state between the first device and the second device is the NLOS state at a first time, send eighth signaling to the second device, the eighth signaling being used to deactivate receiving of the second signal; wherein the first time is a time before a second time, and the second time is a time corresponding to the state between the first device and the second device indicated by the first indication information. 29.A device 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 the state determination method according to any one of claims 1 to 7, or the programs or instructions being executed by the processor to implement steps of the state determination method according to any one of claims 8 to 14, or the programs or instructions being executed by the processor to implement steps of the state determination method according to any one of claims 15 to 18. 30.A readable storage medium, on which a program or instructions are stored, the program or instructions are executed by a processor to implement steps of the state determination method according to any one of claims 1 to 7, or to implement steps of the state determination method according to any one of claims 8 to 14, or to implement steps of the state determination method according to any one of claims 15 to 18. 31.A computer program product stored in a storage medium, the computer program product is executed by at least one processor to implement steps of the state determination method according to any one of claims 1 to 7, or to implement steps of the state determination method according to any one of claims 8 to 14, or to implement steps of the state determination method according to any one of claims 15 to 18.

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