Target sensing method and communication apparatus

Abstract

The present application relates to the technical field of communications. Provided are a target sensing method and a communication apparatus. The method comprises: a transmitter transmits a sensing signal at a first frequency point, and transmits the sensing signal at a second frequency point; correspondingly, after the sensing signal is reflected by a sensing target, a receiver receives the sensing signal at the first frequency point; and the receiver receives the sensing signal at the second frequency point, wherein the first frequency point and the second frequency point satisfy a configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and a target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point and an absolute value frequency point of the difference between the second and first frequency points, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point and the absolute value frequency point of the difference, and the target bandwidth is the maximum value among a first bandwidth occupied by the first frequency point and a second bandwidth occupied by the second frequency point. The first and second frequency points satisfy the configuration condition, thus reducing the search complexity for integer ambiguity parameters.

Description

Target perception method and communication device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on January 15, 2024, with application number 202410064750.9 and application name "A Target Perception Method and Communication Device", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The embodiments of the present application relate to the field of communication technology, and in particular to a target perception method and a communication device. Background Art

[0004] Wireless sensing technology analyzes the changes in wireless signals during propagation to obtain the characteristics of the signal propagation space (channel) to achieve scene perception. How to perceive the surrounding environment while achieving communication has become a hot topic in current research.

[0005] Related technologies propose two methods: matched filter ranging and carrier phase ranging. While the matched filter method is simple to operate, its ranging accuracy is relatively low. While the carrier phase ranging method offers high accuracy, it suffers from integer phase ambiguity, requiring an integer ambiguity parameter search. Some proposals use the matched filter results to determine the search space for the integer ambiguity parameters. However, this search space remains large, resulting in high search complexity. Summary of the Invention

[0006] The present application provides a target perception method and a communication device to reduce the search complexity of integer fuzzy parameters.

[0007] In a first aspect, the present application provides a target perception method, which can be performed through the interaction between a transmitter and a receiver. The transmitter can be a terminal device, a network device, a chip, or a circuit. The receiver can be a terminal device, a network device, a chip, or a circuit. Optionally, the chip can be a chip in a terminal device. Optionally, the circuit can be a circuit in a terminal device. Optionally, the chip can be a chip in a network device. Optionally, the circuit can be a circuit in a network device. This application does not limit this. The method can be applied to the 5th generation (the 5th generation) th Generation, 5G) communication system, 5.5G or future 6G communication system. The method can also be applied to non-terrestrial communication systems, etc., which is not limited in this application. The method is performed as follows:

[0008] The transmitter transmits a sensing signal at a first frequency point and transmits a sensing signal at a second frequency point. Correspondingly, after the sensing signal is reflected by the sensing target, the receiver receives the sensing signal at the first frequency point and the receiver receives the sensing signal at the second frequency point. The first frequency point and the second frequency point meet a configuration condition where the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1. The minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value of the difference between the second frequency point and the first frequency point. The maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value of the difference. The target bandwidth is the maximum value of a first bandwidth occupied by the first frequency point and a second bandwidth occupied by the second frequency point.

[0009] In the present application, after the transmitter sends a perception signal to the perception target at the first frequency point and the second frequency point, the receiver receives the perception signal and obtains the carrier phase measurement results corresponding to the absolute value of the difference between the first frequency point and the second frequency point and the absolute value of the difference between the second frequency point and the first frequency point. If the perception target is a passive device, the perception target can reflect, scatter or refract the perception signal and transmit the perception signal to the receiver. If the perception target is an active device, the perception target can send a perception signal to the receiver and obtain the carrier phase measurement result through the receiver, or receive the perception signal from the transmitter and the perception target itself obtains the carrier phase measurement result. Then, based on the carrier phase measurement result and the matched filter ranging result of the perception target, the search space of the integer ambiguity parameter is determined. Since the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the search complexity of the integer ambiguity parameter is reduced.

[0010] In an optional manner, the first frequency point and the second frequency point satisfy the following formula:

[0011] Where min{f} is the minimum frequency, max{f} is the maximum frequency, B is the target bandwidth, and δ is the error threshold parameter, and the value range of δ is [0, 0.15].

[0012] In an optional manner, there are multiple pairs of first frequency points and second frequency points that meet the formula requirements, and you can choose The pair of frequency points corresponding to the minimum value is used as the first frequency point and the second frequency point for sending the perception signal.

[0013] Based on this, the search complexity of the whole-cycle fuzzy parameters can be further reduced.

[0014] In one optional embodiment, the first and second frequencies meeting the above conditions may be determined by a third-party operating node based on the above configuration conditions. In this case, the transmitter or receiver may pre-receive an indication message from the operating node, indicating the first and second frequencies. This reduces the computational effort required by the transmitter or receiver to determine the first and second frequencies meeting the above conditions, thereby improving sensing efficiency.

[0015] In another optional method, the receiver can also calculate the first frequency point and the second frequency point that meet the above conditions based on the above configuration conditions, and send a first notification message to the transmitter. The first notification message is used to indicate the above configuration conditions so that the transmitter can determine the first frequency point and the second frequency point that meet the above conditions according to the configuration conditions.

[0016] In another optional method, the transmitter can also calculate the first frequency point and the second frequency point that meet the above conditions based on the above configuration conditions, and send a first notification message to the receiver. The first notification message is used to indicate the above configuration conditions so that the receiver can determine the first frequency point and the second frequency point that meet the above conditions according to the configuration conditions.

[0017] In a second aspect, the present application provides a target perception method, which can be performed by a transmitter. The transmitter can be a terminal device, a network device, a chip, or a circuit. Optionally, the chip can be a chip in a terminal device. Optionally, the circuit can be a circuit in a terminal device. Optionally, the chip can be a chip in a network device. Optionally, the circuit can be a circuit in a network device. This application does not limit this. The method can be applied to 5G communication systems, 5.5G or future 6G communication systems. The method can also be applied to non-terrestrial communication systems, etc., which is not limited by this application. The method is performed as follows:

[0018] The transmitter sends a perception signal at a first frequency point; the transmitter sends a perception signal at a second frequency point; wherein, the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference between the second frequency point and the first frequency point, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference, and the target bandwidth is the maximum value of a first bandwidth occupied by the first frequency point and a second bandwidth occupied by the second frequency point.

[0019] In an optional manner, the first frequency point and the second frequency point satisfy the following formula:

[0020] Where min{f} is the minimum frequency, max{f} is the maximum frequency, B is the target bandwidth, and δ is the error threshold parameter, and the value range of δ is [0, 0.15].

[0021] In an optional manner, there are multiple pairs of first and second frequencies that meet the formula requirements, and you can select The pair of frequency points corresponding to the minimum value is used as the first frequency point and the second frequency point for sending the perception signal.

[0022] In an optional manner, the transmitter further receives an indication message from the operation node, where the indication message is used to indicate the first frequency point and the second frequency point.

[0023] In an optional manner, the transmitter further receives a first notification message from the receiver, where the first notification message is used to indicate a configuration condition; and determines the first frequency point and the second frequency point according to the configuration condition.

[0024] In an optional manner, the transmitter further sends a second notification message to the receiver, where the second notification message is used to indicate a configuration condition, and the configuration condition is used for the receiver to determine the first frequency point and the second frequency point.

[0025] In a third aspect, the present application provides a target perception method, which can be performed by a receiver. The receiver can be a terminal device, a network device, a chip, or a circuit. Optionally, the chip can be a chip in a terminal device. Optionally, the circuit can be a circuit in a terminal device. Optionally, the chip can be a chip in a network device. Optionally, the circuit can be a circuit in a network device. This application does not limit this. The method can be applied to 5G communication systems, 5.5G or future 6G communication systems. The method can also be applied to non-terrestrial communication systems, etc., which is not limited by this application. The method is performed as follows:

[0026] The receiver receives a perception signal at a first frequency point; the receiver receives a perception signal at a second frequency point; wherein the first frequency point and the second frequency point meet a configuration condition that a ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value frequency points of the difference between the second frequency point and the first frequency point, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value frequency points of the difference, and the target bandwidth is the maximum value of a first bandwidth occupied by the first frequency point and a second bandwidth occupied by the second frequency point.

[0027] In an optional manner, the first frequency point and the second frequency point satisfy the following formula:

[0028] Where min{f} is the minimum frequency, max{f} is the maximum frequency, B is the target bandwidth, and δ is the error threshold parameter, and the value range of δ is [0, 0.15].

[0029] In an optional manner, there are multiple pairs of first and second frequencies that meet the formula requirements, and you can select The pair of frequency points corresponding to the minimum value is used as the first frequency point and the second frequency point for sending the perception signal.

[0030] In an optional manner, the receiver further receives an indication message from the operation node, where the indication message is used to indicate the first frequency point and the second frequency point.

[0031] In an optional manner, the receiver further sends a first notification message to the transmitter, where the first notification message is used to indicate a configuration condition, and the configuration condition is used for the transmitter to determine the first frequency point and the second frequency point.

[0032] In an optional manner, the receiver further receives a second notification message from the transmitter, where the second notification message is used to indicate a configuration condition; and the first frequency point and the second frequency point are determined according to the configuration condition.

[0033] In a fourth aspect, an embodiment of the present application provides a communication device, which may be an operating node, a sensing node, or a reference node. The communication device is capable of implementing the functions of the first to third aspects above. For example, the communication device includes modules, units, or means corresponding to the steps involved in the first to third aspects above. The functions, units, or means may be implemented through software or hardware, or may be implemented through hardware executing the corresponding software implementation.

[0034] In one possible design, the communication device includes a processing unit and a transceiver unit, wherein the transceiver unit can be used to send and receive signals to achieve communication between the communication device and other devices; the processing unit can be used to perform some internal operations of the communication device. The transceiver unit can be called an input / output unit, a communication unit, etc., and the transceiver unit can be a transceiver; the processing unit can be a processor. When the communication device is a module (such as a chip) in a communication device, the transceiver unit can be an input / output interface, an input / output circuit, or an input / output pin, etc., and can also be called an interface, a communication interface, or an interface circuit, etc.; the processing unit can be a processor, a processing circuit, or a logic circuit, etc.

[0035] In another possible design, the communication device includes a processor and may also include a transceiver, the transceiver is used to send and receive signals, and the processor executes program instructions to complete the method in any possible design or implementation of the first to third aspects above. The communication device may also include one or more memories, the memories are used to couple with the processor, and the memories can store the necessary computer programs or instructions for implementing the functions involved in the first to third aspects above. The processor can execute the computer program or instructions stored in the memory, and when the computer program or instructions are executed, the communication device implements the method in any possible design or implementation of the first to third aspects above.

[0036] In another possible design, the communication device includes a processor, which can be coupled to a memory. The memory can store the necessary computer programs or instructions for implementing the functions of the first to third aspects described above. The processor can execute the computer programs or instructions stored in the memory. When the computer programs or instructions are executed, the communication device implements the method of any possible design or implementation of the first to third aspects described above.

[0037] In another possible design, the communication device includes a processor and an interface circuit, wherein the processor is used to communicate with other devices through the interface circuit and execute the method in any possible design or implementation of the first to third aspects above.

[0038] It can be understood that in the fourth aspect above, the processor can be implemented by hardware or by software. When implemented by hardware, the processor can be a logic circuit, an integrated circuit, etc.; when implemented by software, the processor can be a general-purpose processor, which is implemented by reading the software code stored in the memory. In addition, the above processors can be one or more, and the memories can be one or more. The memory can be integrated with the processor, or the memory and the processor can be set separately. In the specific implementation process, the memory can be integrated with the processor on the same chip, or can be set on different chips respectively. The embodiment of the present application does not limit the type of memory and the setting method of the memory and the processor.

[0039] In a fifth aspect, an embodiment of the present application provides a communication system, which includes the transmitter and receiver in the first aspect above.

[0040] In a sixth aspect, the present application provides a chip system, which includes a processor for implementing the method described in the first aspect. Optionally, it may also include a memory. The chip system may be composed of a chip or may include a chip and other discrete devices.

[0041] In the seventh aspect, the present application also provides a computer-readable storage medium, which stores computer-readable instructions. When the computer-readable instructions are run on a computer, the computer executes the method executed by the transmitter or the method executed by the receiver in the first aspect.

[0042] In an eighth aspect, the present application provides a computer program product comprising instructions, which, when executed on a computer, enables the computer to execute the method executed by the transmitter or the method executed by the receiver in the above-mentioned first aspect.

[0043] For the technical effects that can be achieved in the above-mentioned second to eighth aspects, please refer to the description of the technical effects that can be achieved by the corresponding possible design schemes in the above-mentioned first aspect, and this application will not repeat them here. BRIEF DESCRIPTION OF THE DRAWINGS

[0044] FIG1 shows a schematic diagram of a communication system provided by an embodiment of the present application;

[0045] FIG2 shows a schematic diagram of carrier phase ranging;

[0046] FIG3 shows a schematic diagram of a dual-base sensing node provided in an embodiment of the present application;

[0047] FIG4 shows a schematic diagram of a single-base sensing node provided in an embodiment of the present application;

[0048] FIG5 shows a schematic diagram of an integer fuzzy parameter search;

[0049] FIG6 shows a schematic flow chart of a target perception method provided in an embodiment of the present application;

[0050] FIG7A shows a schematic diagram of a frequency point provided by an embodiment of the present application;

[0051] FIG7B shows a schematic diagram of an integer fuzzy parameter search;

[0052] FIG8 shows a schematic flow chart of a target perception method provided in an embodiment of the present application;

[0053] FIG9 is a schematic diagram showing a flow chart of a target perception method provided in an embodiment of the present application;

[0054] FIG10 is a schematic diagram showing a flow chart of a target perception method provided in an embodiment of the present application;

[0055] FIG11 shows a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0056] FIG12 shows a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0057] FIG13 shows a schematic structural diagram of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0058] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the accompanying drawings. The specific operating methods in the method embodiments can also be applied to device embodiments or system embodiments. Among them, in the description of the present application, unless otherwise specified, the meaning of "multiple" is more than two (including two). Therefore, the implementation of the device and the method can refer to each other, and the repetitions will not be repeated.

[0059] The technical solutions provided in the embodiments of the present application can be applied to 5G systems, or to future communication systems (such as 6G) or other similar communication systems. In addition, the technical solutions provided in the embodiments of the present application can be applied to cellular links, public land mobile networks (PLMN), machine to machine (M2M) networks, Internet of Things (IoT) networks or other networks. It can also be applied to links between devices, such as device to device (D2D) links. D2D links can also be called sidelinks, where sidelinks can also be called side links or side links, etc. In the embodiments of the present application, the above terms all refer to links established between devices of the same type, and their meanings are the same. The so-called devices of the same type can be links between terminal devices, links between base stations, links between relay nodes, etc., and the embodiments of the present application do not limit this.

[0060] Figure 1 is a schematic diagram of a wireless communication system applicable to the present application. As shown in Figure 1 , the wireless communication system may include at least one network device, such as network device 111, network device 112, and network device 113. The wireless communication system may also include at least one terminal device, such as terminal device 121, terminal device 122, terminal device 123, terminal device 124, terminal device 125, terminal device 126, and terminal device 127. The communication method between network devices may be backhaul, such as the communication method between network device 111 and network device 112, or the communication method between network device 111 and network device 113. The communication method between network devices and terminal devices may be enhanced mobile broadband (eMBB), such as the communication method between network device 112 and terminal device 121. The communication method between network devices and terminal devices may be multi-site transmission, such as the communication method between network devices 112, network device 113, and terminal device 124. The communication method between terminal devices may be D2D. For example, the communication method between terminal device 122 and terminal device 125.

[0061] A terminal device may be a device capable of receiving scheduling and instruction information from network devices, providing voice and / or data connectivity to a user, or a handheld device with wireless connection capabilities, or other processing devices connected to a wireless modem. The terminal device may communicate with one or more core networks or the Internet via a radio access network (RAN). For example, the terminal device may be a portable, pocket-sized, handheld, computer-built-in, or vehicle-mounted mobile device. The terminal device may also be referred to as a subscriber unit (SU), subscriber station (SS), mobile station (MS), remote station (RS), access point (AP), remote terminal (RTE), access terminal (AT), user agent (UA), customer premises equipment (CPE), terminal, user equipment (UE), mobile terminal (MT), etc. The terminal device may also be a wearable device. The terminal device may also be a device in a next-generation communication system. For example, terminal devices in 5G networks or terminal devices in future evolved PLMN networks, terminal devices in NR communication systems, etc.Currently, terminal devices may include: mobile phones, tablet computers, laptop computers, PDAs, customer-premises equipment (CPE), mobile internet devices (MIDs), wearable devices (such as smart watches, smart bracelets, and pedometers), in-vehicle equipment (such as cars, bicycles, electric vehicles, airplanes, ships, trains, and high-speed trains), virtual reality (VR) devices, augmented reality (AR) devices, wireless terminals in industrial control, smart home devices (such as refrigerators, televisions, air conditioners, and electric meters), intelligent robots, workshop equipment, wireless terminals in self-driving vehicles, wireless terminals in remote medical surgery, wireless terminals in smart grids, wireless terminals in transportation safety, wireless terminals in smart cities, wireless terminals in smart homes, and flying devices (such as intelligent robots, hot air balloons, drones, and airplanes). The terminal device may also be other devices with terminal functions. For example, the terminal device may also be a device that serves as a terminal in D2D communication.

[0062] A network device is an entity on the network side that transmits or receives signals. For example, a transmission reception point (TRP) or a gNB. A network device can be an AP in a wireless local area network (WLAN), a base transceiver station (BTS) in a global system for mobile communication (GSM) or code division multiple access (CDMA), a base station (nodeB, NB) in wideband code division multiple access (WCDMA), or an evolved node B (eNB or eNodeB) in long-term evolution (LTE). A network device can also be a relay station or access point, or a network device in an in-vehicle device, wearable device, or 5G network, or a network device in a future evolved PLMN, or a device such as a gNodeB / gNB in ​​a NR system. In some deployments, a gNB can include a CU and a DU. The CU implements some of the gNB's functions, and the DU implements some of the gNB's functions. For example, the CU is responsible for processing non-real-time protocols and services. For example, it implements radio resource control (RRC), service data adaptation protocol (SDAP), and packet data convergence protocol (PDCP) layer functions. The DU is responsible for processing physical layer protocols and real-time services. For example, it implements radio link control (RLC), medium access control (MAC), and physical (PHY) layer functions. The gNB may also include an active antenna unit (AAU). The AAU implements some physical layer processing functions, RF processing, and active antenna-related functions. Because RRC layer information ultimately becomes PHY layer information, or is converted from PHY layer information, in this architecture, higher-layer signaling (such as RRC layer signaling) can also be considered to be sent by the DU, or by both the DU and the AAU. It is understood that a network device can be a device that includes one or more of a CU node, a DU node, or an AAU node.In addition, the CU may be a network device in an access network (radio access network, RAN), and the CU may be a network device in a core network (core network, CN), which is not limited in this application. In addition, in an embodiment of the present application, the network device provides services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell may be a cell corresponding to a network device (for example, a base station). The cell may belong to a macro base station or a base station corresponding to a small cell. For example, the small cell may include: a metro cell, a micro cell, a pico cell, a femto cell, etc. Since the small cell has the characteristics of small coverage and low transmission power, the small cell can provide high-speed data transmission services. In addition, in other possible cases, the network device may be other devices that provide wireless communication functions for the terminal device. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network device. For example, in an open radio access network (ORAN) system, CU may also be referred to as O-CU (open CU), DU may also be referred to as O-DU, CU-CP may also be referred to as O-CU-CP, CU-UP may also be referred to as O-CU-UP, and RU may also be referred to as O-RU. For the convenience of description, this application uses CU, CU-CP, CU-UP, DU, and RU as examples for description. Any of the CU (or CU-CP, CU-UP), DU, and RU in this application can be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.

[0063] In order to better illustrate the solution of this application, the following technical terms involved in this application are explained:

[0064] 1) Integer fuzzy parameters

[0065] Related technologies propose carrier phase ranging schemes that use the carrier frequency and phase information in the transmitted signal to calculate the signal's propagation distance. As shown in Figure 2, the signal is transmitted by the transmitter (Tx) and then transmitted to the target object. The signal is reflected by the target object and received by the receiver (Rx). The actual distance d of the signal propagation satisfies the following formula 1:

[0066] Where f is the carrier frequency; N is a positive integer, representing the number of wavelengths required for the signal to be transmitted from the transmitter to the receiver; Φ is the phase measured by the receiver after receiving the signal; and c is the speed of light. However, since N is unknown, d cannot be determined. This is because the uncertainty of the integer ambiguity parameter leads to the uncertainty of d. Here, N can be defined as the integer ambiguity parameter.

[0067] 2) Perception Node

[0068] A sensing node may also be referred to as a sensing node, signal detection node, or sensing device, without specific limitation here. A sensing node may be a terminal device or a network device as described above, without specific limitation here. A sensing node assists an operating node in locating a sensing target. Multiple sensing nodes (typically no fewer than three) are typically used to assist in locating a sensing target.

[0069] Sensing nodes are divided into dual-base sensing nodes and single-base sensing nodes. Among them, the dual-base sensing node includes two sensing devices, one sensing device (which can be called a signal transmitting sensing node or a transmitter) transmits a signal, which is reflected by the sensing target, and the other sensing device (which can be called a signal receiving sensing node or a receiver) receives the signal to obtain a sensing result. Among them, the single-base sensing node includes one sensing device, and the transmitting end of the sensing device (which can also be called a transmitter) transmits a signal, which is reflected by the sensing target, and the receiving end of the sensing device (which can also be called a receiver) receives the reflected signal to obtain a sensing result. Among them, the sensing result includes: signal transmission distance, relative motion speed of the sensing target, angle of the sensing target relative to the antenna receiving array (that is, the antenna receiving array of the signal receiving sensing node in the sensing node), or signal strength and other information. This is only an example and is not specifically limited. It should be noted that in this application, the dual-base sensing node is understood as one sensing node, and the single-base sensing node is also understood as one sensing node.

[0070] The schematic diagram of the dual-base sensing node can be understood with reference to Figure 3. Figure 3 (a) shows that the sensing target within the sensing area is a car, the sensing node transmitting the signal is the base station, and the sensing node receiving the signal is the user equipment (UE). After the base station transmits the signal, it reflects off the car to produce a reflected signal, which is received by the UE to obtain the sensing result. Figure 3 (b) shows that the sensing target within the sensing area is a car, the sensing node transmitting the signal is the UE, and the sensing node receiving the signal is the base station. After the UE transmits the signal, it reflects off the car to produce a reflected signal, which is received by the base station to obtain the sensing result. Figure 3 (c) shows that the sensing target within the sensing area is a car, the sensing node transmitting the signal is base station 1, and the sensing node receiving the signal is base station 2. After base station 1 transmits the signal, it reflects off the car to produce a reflected signal, which is received by base station 2 to obtain the sensing result. Figure 3 (d) shows that the sensing target within the sensing area is a car, the sensing node transmitting the signal is UE1, and the sensing node receiving the signal is UE2. After UE1 transmits the signal, it reflects off the car to produce a reflected signal, which is received by UE2 to obtain the sensing result. In Figure 3 (e), the sensing node needs to receive instructions from the control device before it can transmit a signal. The control device is the base station, the transmitting sensing node is UE1, the receiving sensing node is UE2, and the sensing target within the sensing area is a car. After the base station issues a signal transmission instruction to UE1, UE1 transmits a signal, which reflects off the car as a reflected signal, which is then received by UE2. UE2 reports the sensing result based on the base station's instruction. In Figure 3 (f), the sensing node needs to receive instructions from the control device before it can transmit a signal. The control device is base station 3, the transmitting sensing node is base station 1, and the receiving sensing node is base station 2. The sensing target within the sensing area is a car. After base station 3 issues a signal transmission instruction to base station 1, base station 1 transmits a signal, which reflects off the car as a reflected signal, which is then received by base station 2. Base station 2 reports the sensing result based on base station 3's instruction.

[0071] Figure 4 illustrates a schematic diagram of a single-base sensing node. Figure 4 (a) shows a car as the sensing target within the sensing area, and a base station as the sensing node. After the base station transmits a signal, it reflects off the car, producing a reflected signal. The reflected signal is then received by the base station to obtain the sensing result. Figure 4 (b) shows a car as the sensing target within the sensing area, and a user equipment (UE) as the sensing node. After the UE transmits a signal, it reflects off the car, producing a reflected signal. The reflected signal is then received by the UE to obtain the sensing result.

[0072] 4) Operation Node

[0073] The operation node may also be referred to as a control node, a processing node, a control device, or a processing device, etc., which is not specifically limited here. The operation node may be the terminal device or network device mentioned above, which is not specifically limited here. The operation node may be a device different from a sensing node, or may be one of multiple sensing nodes, which is not specifically limited here. For example, in a scenario of sensing target positioning, one of multiple single-base sensing nodes is used as an operation node. Alternatively, in a scenario of sensing target positioning, a signal transmitting sensing node (i.e., a transmitter) in one of multiple dual-base sensing nodes is used as an operation node. Alternatively, in a scenario of sensing target positioning, a signal receiving sensing node (i.e., a receiver) in one of multiple dual-base sensing nodes is used as an operation node.

[0074] Through the above description, under the premise of no prior information, the carrier phase ranging scheme is used to determine the position of the target object, and the integer ambiguity parameter N may be any positive integer. If a matched filter ranging scheme is used (the basic principle of matched filter ranging is to use the autocorrelation function of the signal to determine the propagation delay of the signal, thereby calculating the distance the signal propagates. The specific steps include: 1) The transmitter sends a short pulse signal (called a detection signal); 2) The receiver receives the signal reflected by the target object; 3) The receiver matches the received signal with the original detection signal to obtain an autocorrelation function; 4) The peak of the autocorrelation function corresponds to the delay of signal propagation; 5) The distance of signal propagation is calculated by using the known signal speed and delay to determine the position of the target object (that is, the matched filtering result) as a reference, and possible integer ambiguity parameters are searched near the matched filtering result, then the search complexity of the integer ambiguity parameters can be reduced. Refer to the following formula 2 for understanding:

[0075] Where d represents the actual distance the signal travels after being reflected by the target object and received by the receiver (Rx). MF It represents the signal propagation distance determined by the matched filter ranging scheme for the target object, w MF represents the measurement error of the matched filter ranging scheme. λ represents the wavelength, represents the measured distance of carrier phase ranging without the integer ambiguity part, Φ represents the phase measured by the receiver after receiving the signal when using carrier phase ranging, m represents the integer modulus parameter, and w represents the measurement error of the carrier phase ranging scheme. It should be noted that ‖w MF‖2>>‖w‖2. For carrier phase ranging using a single carrier, the search complexity is Δr / λ, where Δr = c / B, where c represents the speed of light and B represents the signal bandwidth. For a single carrier, B is the bandwidth occupied by the carrier's frequency. For a 10 GHz carrier, with a wavelength of 3 cm and a ranging error of 3 m, within the 3 m error range, with a 3 cm wavelength as the period, m has 100 possible values, leaving a large search space for the integer modulus parameter.

[0076] The following formula 3 shows the ranging results of dual-carrier ranging (carrier 1 and carrier 2 are used for carrier phase ranging) and the ranging results of matched filtering in the carrier ranging scheme:

[0077] Among them, d, d MF and w MF The above formula 2 can be referred to for understanding, which will not be described here. λ1 represents the wavelength of carrier 1, Indicates the measured distance of carrier phase ranging without the integer ambiguity when carrier phase measurement is performed based on carrier 1. Φ1 indicates the phase measured by the receiver after receiving the signal when carrier phase ranging is performed using carrier 1. m1 indicates the integer modulus parameter of carrier phase measurement based on carrier 1. w1 indicates the measurement error of carrier phase ranging based on carrier 1. λ2 indicates the wavelength of carrier 2. It represents the measured distance of carrier phase ranging without the integer ambiguity when carrier phase measurement is performed based on carrier 2, Φ2 represents the phase measured by the receiver after receiving the signal when carrier phase ranging is performed using carrier 2, m2 represents the integer modulus parameter of carrier phase measurement based on carrier 2, and w2 represents the measurement error of carrier phase ranging based on carrier 2. It should be noted that ‖w MF ‖2>>‖w1‖2,‖w MF ‖2>>‖w2‖2. For carrier phase ranging using dual carriers, the search complexity is Δr / λ1+λ1 / λ2, where Δr=c / B, c represents the speed of light, and B represents the signal bandwidth. For dual carriers, B is the maximum bandwidth occupied by the dual carrier frequencies.

[0078] It should be noted that the combination of two frequencies can form a virtual carrier, and the frequency of the virtual carrier f v Refer to Formula 4 to understand: v =|f2-f1| Formula 4

[0079] Among them, fv Indicates the carrier frequency of the virtual carrier, f1 indicates the frequency of carrier 1, and f2 indicates the frequency of carrier 2.

[0080] The generated virtual carrier and the actual carrier are then combined together. The measurement equation can be understood by referring to Formula 5:

[0081] Among them, d, d MF 、w MF w MF , a1, a2, λ1, λ2, m1, m2, w1, w2 can be understood by referring to the description of formula 2 above and will not be repeated here. v represents the wavelength of the virtual carrier, It represents the measurement distance of carrier phase ranging without the integer ambiguity part when carrier phase measurement is performed based on a virtual carrier. Φv represents the phase measured by the receiver after receiving the signal when carrier phase ranging is performed using a virtual carrier. m1 represents the integer modulus parameter of carrier phase measurement based on a virtual carrier. w v represents the measurement error of the phase ranging of the carrier based on the virtual carrier. It should be noted that ‖w MF ‖2>>‖w1‖2,‖w MF ‖2>>‖w2‖2,‖w MF ‖2>>‖w v ‖2. For carrier phase ranging using dual carriers and virtual carriers, the search complexity is Δr / λ v +λ v / λ2 (assuming that the carrier frequency of carrier 2 is greater than the carrier frequency of carrier 1), where Δr = c / B, c represents the speed of light, and B represents the signal bandwidth. For dual carriers and virtual carriers, B is the maximum value of the bandwidth occupied by the frequency points of the dual carriers and virtual carriers.

[0082] Figure 5 shows a schematic diagram of searching for integer ambiguity parameters using dual carriers and virtual carriers for carrier phase ranging. A preliminary ranging result is obtained using matched filter ranging to determine the first search range Δr. Then, the step size is the wavelength λ of the virtual carrier. v Search within the first search range. Finally, determine the second search range λ based on the carrier ranging result of the virtual carrier v , a wavelength λ2 with a step size of carrier 2 (assuming that the carrier frequency of carrier 2 is greater than the carrier frequency of carrier 1) is searched within the second search range to determine the integer ambiguity parameter.

[0083] However, the device used for ranging may support multiple carrier frequencies for carrier phase ranging. How to select frequency points to construct a virtual carrier to reduce the search complexity of the whole-cycle ambiguity parameters has not been provided by relevant technologies.

[0084] Based on this, the present application provides a target perception method to reduce the complexity of searching for integer ambiguity parameters. Referring to FIG6 , this method can be executed through interaction between a transmitter and a receiver. The transmitter or receiver can be a terminal device, a network device, a chip, or a circuit. Optionally, the chip can be a chip in a terminal device, and the circuit can be a circuit in a terminal device. Optionally, the chip can be a chip in a network device, and the circuit can be a circuit in a network device. The transmitter can be a signal-transmitting perception node in the aforementioned dual-base perception node, and the receiver can be a signal-receiving perception node in the aforementioned dual-base perception node. The transmitter can also be a transmitting end in the aforementioned monostatic perception node, and the receiver can be a receiving end in the aforementioned monostatic perception node. This application does not limit this. This method can be applied to 5G communication systems, 5.5G, or future 6G communication systems. This method can also be applied to non-terrestrial communication systems, etc., which is not limited in this application. FIG6 illustrates a transmitter, a receiver, and a perception target. The perception target can be a passive device that cannot transmit or receive signals but can reflect, diffract, or scatter signals, etc., and is not specifically limited here. Examples include vehicles, trees, animals, etc. The sensing target can also be an active device that can send and receive signals, such as a terminal device, a network device, etc. If the sensing target is a passive device, the sensing target can reflect, diffract or scatter the sensing signal emitted by the transmitter, and transmit the sensing signal back to the receiver. The transmission distance of the sensing signal is the total signal transmission distance from the transmitter to the sensing target and from the sensing target to the receiver. If the sensing target is an active device, the sensing target can send a sensing signal to the receiver, and the transmission distance of the sensing signal is the distance between the sensing target and the receiver, or the sensing target receives the sensing signal from the transmitter, and the transmission distance of the sensing signal is the distance between the transmitter and the sensing target. This is only an illustrative explanation and is not specifically limited. Figure 6 takes the sensing target as a passive device and the sensing target reflects the sensing signal as an example. The method is performed as follows:

[0085] Step 601: A transmitter sends a sensing signal at a first frequency point. Correspondingly, a sensing target receives the sensing signal and reflects the sensing signal.

[0086] In step 602, the transmitter sends a sensing signal at a second frequency point. Correspondingly, the sensing target receives the sensing signal and reflects the sensing signal.

[0087] The execution order of the above steps 601 and 602 is not specifically limited. Step 602 may be executed first and then step 601, or step 601 may be executed first and then step 602.

[0088] Step 603: The receiver receives the sensing signal at the first frequency point.

[0089] Step 604: The receiver receives the sensing signal at the second frequency point.

[0090] The execution order of the above steps 603 and 604 is not specifically limited. Step 603 may be executed first and then step 604, or step 604 may be executed first and then step 603.

[0091] Among them, the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference between the second frequency point and the first frequency point, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference, and the target bandwidth is the maximum value of the first bandwidth occupied by the first frequency point and the second bandwidth occupied by the second frequency point.

[0092] Referring to the above-mentioned carrier phase ranging using dual carriers and virtual carriers (which can be understood as the carrier corresponding to the absolute value of the difference between the second frequency point and the first frequency point), the search complexity of the integer ambiguity parameter is exist When the value of is the smallest, the search complexity of the whole-cycle fuzzy parameter is the lowest. Based on this, considering It can be seen that Furthermore, we can know that Further, exist The minimum value of That is to say Furthermore, we can know that Where, Δr=c / B, It can be seen that Since the two frequency points may not be able to fully meet The error threshold parameter δ can be set, from which we can know Where f2 is the maximum frequency point, and f2-f1 is the minimum frequency point. Based on this, the first frequency point and the second frequency point satisfy the following formula 6:

[0093] Where min{f} is the minimum frequency, max{f} is the maximum frequency, B is the target bandwidth, and δ is the error threshold parameter, and the value range of δ is [0, 0.15].

[0094] It should also be added that in the relevant embodiment of Figure 6, the transmitter (or receiver) is a base station, its processing operations can be performed by the CU, and the transceiver operations of the base station can be performed by the DU or RU; or, the processing operations of the base station can be performed by the CU-CP, and the transceiver operations of the base station can be performed by the DU or RU.

[0095] Taking the transmitter as a base station as an example, the CU can generate a sensing signal and send it to the DU. The DU can send the sensing signal to the sensing target, or the DU can send the sensing signal to the RU, which then sends it to the sensing target. For another example, the CU-CP can generate a sensing signal and send it to the DU. The DU can send the sensing signal to the sensing target, or the DU can send the sensing signal to the RU, which then sends it to the sensing target.

[0096] Of course, CU, DU, RU, and CU-CP can also perform other operations, which will not be listed one by one in this application.

[0097] Furthermore, in the O-RAN scenario, the operations performed by the above CU can be performed by the O-CU, the operations performed by the DU can be performed by the O-DU, the operations performed by the RU can be performed by the O-RU, and the operations performed by the CU-CP can be performed by the O-CU-CP.

[0098] It should be noted that the transmitter and receiver may support multiple frequencies, and there are multiple pairs of first and second frequencies among the multiple frequencies that meet the requirements of Formula 6. When determining the first and second frequencies, you can choose The frequency pair corresponding to the minimum value is used as the first frequency and the second frequency for sending the sensing signal. For example, frequency 1 and frequency 2 meet the requirements of the above formula 6. By calculating is 0.09; frequency points 3 and 4 meet the requirements of the above formula 6, by calculating is 0.05; frequency 5 and frequency 6 meet the requirements of the above formula 6, by calculating =0.01; since 0.01<0.05<0.09, frequency 5 and frequency 6 are selected as the first and second frequencies. Frequency 5 can be used as the first frequency and frequency 6 as the second frequency, or frequency 6 can be used as the first frequency and frequency 5 as the second frequency. This is not specifically limited here and is only an example.

[0099] For example, the first frequency point is f1 = 9 GHz, the first bandwidth occupied by the first frequency point is B1 = 100 MHz, the second frequency point is f2 = 10 GHz, the second bandwidth occupied by the second frequency point is B2 = 100 MHz, and the absolute value of the difference between the second frequency point and the first frequency point is fv = 1 GHz (fv = f2 - f1). Including the absolute value of the difference, there are three frequency points {1, 9, 10} GHz. As shown in Figure 7A, min{f} = 1 GHz, max{f} = 10 GHz, at this time, 7B , a preliminary ranging result is obtained by matched filtering. The bandwidth of the matched filtering signal is 100 MHz, and the corresponding first search range is Δr=3 m. Based on the ranging result, the wavelength λ is used within Δr.v = 0.3m to search for the integer ambiguity parameters; further, based on the carrier ranging result corresponding to the frequency point of the absolute value of the difference, v = 0.3m range and use λ2 = 0.03m for a more precise search.

[0100] In addition, to improve data processing efficiency, a range of values ​​for the first frequency point and the second frequency point that meet the above configuration conditions can be pre-configured. If the frequency point commonly supported by the transmitter and receiver is within the pre-configured range of the first frequency point and the range of the second frequency point, the corresponding frequency point can be used as the first frequency point and the second frequency point. According to the frequency bands specified in 3GPP TS 38.104, when δ = 0.15, the candidate frequency bands shown in Table 1 below can meet the configuration conditions of this application. For example, the transmitter and receiver jointly support frequencies of 870 MHz and 7100 MHz. 870 MHz is within the range of 869 MHz to 894 MHz, and 7100 MHz is within the range of 7000 MHz to 7125 MHz. Therefore, 870 MHz can be used as the first frequency and 7100 MHz as the second frequency. The transmitter and receiver jointly support frequencies of 6425 MHz (corresponding to a bandwidth of 30 MHz) and 7200 MHz (corresponding to a bandwidth of 40 MHz). Although 6425 MHz meets the requirements of the first frequency range, 7200 + 520 = 7720 MHz, which does not meet the requirements of the second frequency range. Therefore, 425 MHz (corresponding to a bandwidth of 30 MHz) and 7200 MHz (corresponding to a bandwidth of 40 MHz) cannot form a pair of first and second frequencies. This is merely an example and does not constitute a specific limitation.

[0101] Table 1

[0102] In this application, after a transmitter sends a sensing signal to a sensing target at a first frequency and a second frequency, a reflection receiver at the sensing target receives the sensing signal and obtains carrier phase measurement results corresponding to the absolute value of the difference between the first frequency and the second frequency, and the absolute value of the difference between the second frequency and the first frequency. The search space for integer ambiguity parameters is then determined based on these carrier phase measurement results and the matched filter ranging result of the sensing target. Because the first and second frequencies meet the configuration condition that the ratio of the square of the minimum frequency to the product of the maximum frequency and the target bandwidth is close to 1, the search complexity of the integer ambiguity parameters is reduced.

[0103] In actual applications, even if the transmitter and receiver support multiple frequencies, the above configuration conditions may not be met. Based on this, any of the multiple frequencies supported by the transmitter and receiver can be sorted by size. The multiple frequencies can ensure that the search complexity of the integer ambiguity parameter is low if the following formula 7 is satisfied:

[0104] Among them, B is the maximum value of the bandwidth occupied by multiple frequency points supported by the transmitter and receiver, δ is the error threshold parameter, and the value range of δ is [0,0.15]. x For the transmitter and receiver to support any of multiple frequency points, f n For sorting in f x The frequency point after that, f n+1 For sorting in f n The frequency after that.

[0105] For example, taking three frequencies as an example, f1 = 3.5 GHz, B1 = 100 MHz, f2 = 12 GHz, B2 = 100 MHz, f3 = 42 GHz, and B3 = 1 GHz. B = max{B1, B2, B3} = 1 GHz. f1 / B = 3.5, f2 / f1 ≈ 3.42, and f3 / f2 ≈ 3.5. Referring to Formula 7 above, we can see that 0.02<0.15, Based on this, it can be seen that f1, f2, and f3 can meet the requirements of the above formula 7.

[0106] It should be noted that before executing steps 601 to 604, the transmitter and receiver must determine the first and second frequencies, which meet the aforementioned configuration conditions. In one embodiment, the transmitter or receiver may receive an indication message from the operating node, indicating the first and second frequencies. This reduces the amount of data computation required by the transmitter or receiver, improving perception efficiency. In an optional embodiment, the receiver sends a first notification message to the transmitter, which in turn receives the first notification message. The first notification message indicates the configuration conditions; the transmitter determines the first and second frequencies based on the configuration conditions. This reduces the amount of data computation required by the transmitter, improving data processing efficiency. In an optional embodiment, the transmitter sends a second notification message to the receiver, which in turn receives the second notification message. The second notification message indicates the configuration conditions, which are used by the receiver to determine the first and second frequencies. This reduces the amount of data computation required by the receiver, improving data processing efficiency. This will be explained below with reference to Figures 8 to 10 for different scenarios.

[0107] Case 1: The operation node sends an indication message, which is used to indicate the first frequency point and the second frequency point

[0108] Referring to FIG8 , the method may be performed by interaction between a transmitter, a receiver, and an operating node. The method is performed as follows:

[0109] In step 801A, the operating node sends a query request message to the transmitter, where the query request message is used to request the frequency point information of the carrier ranging supported by the transmitter. Correspondingly, the transmitter receives the query request message.

[0110] In step 801B, the operating node sends a query request message to the receiver, where the query request message is used to request frequency information of carrier ranging supported by the receiver. Accordingly, the receiver receives the query request message.

[0111] The execution order of the above steps 801A and 801B is not limited. Step 801A may be executed first and then step 801B, or step 801B may be executed first and then step 801A.

[0112] In step 802A, the transmitter sends a query request response message to the operation node, where the query request response message includes frequency information supported by the transmitter. Accordingly, the operation node receives the query request response message.

[0113] Optionally, the query request response message also includes: the bandwidth occupied by the frequency points supported by the transmitter.

[0114] In step 802B, the receiver sends a query request response message to the operating node, where the query request response message includes frequency information supported by the receiver. Accordingly, the operating node receives the query request response message.

[0115] Optionally, the query request response message also includes: the bandwidth occupied by the frequency points supported by the receiver.

[0116] The execution order of the above steps 802A and 802B is not limited. Step 802A may be executed first and then step 802B, or step 802B may be executed first and then step 802A.

[0117] Step 803: The operation node determines indication information, where the indication information indicates a first frequency point, a second frequency point, and a target bandwidth that meet the configuration conditions.

[0118] Specifically, the operating node determines the frequency information of carrier ranging commonly supported by the transmitter and receiver based on the query request response message, and selects the first frequency and the second frequency that meet the configuration conditions described in FIG. 6 and the target bandwidth from the frequency information as indication information.

[0119] Step 804: The operating node sends indication information to the transmitter.

[0120] Step 805: The operating node sends indication information to the receiver.

[0121] The execution order of the above steps 804 and 805 is not limited. Step 804 may be executed first and then step 805, or step 805 may be executed first and then step 804.

[0122] Step 806: The transmitter sends a sensing signal to the sensing target according to the instruction information.

[0123] Specifically, the transmitter sends the perception signal at a first frequency point and sends the perception signal at a second frequency point.

[0124] Step 807: The receiver receives the sensing signal transmitted by the sensing target according to the instruction information, and determines the carrier phase ranging information.

[0125] Specifically, the receiver receives the perception signal at a first frequency point and receives the perception signal at a second frequency point.

[0126] Step 808: The receiver feeds back carrier phase ranging information to the operating node.

[0127] Optionally, the carrier phase ranging information includes: multiple carrier phase measurement values ​​obtained by measuring the sensing target at different times, carrier phase measurement differences obtained by measuring the sensing target at adjacent times, signal transmission distance values ​​obtained by measuring the sensing target using sensing signals at different times, signal transmission delay values ​​obtained by measuring the sensing target using sensing signals at different times, candidate values ​​of integer ambiguity parameters, or candidate intervals of integer ambiguity parameters. For example, candidate values ​​of integer ambiguity parameters estimated by the receiver based on experience, or candidate values ​​of integer ambiguity parameters estimated by the receiver based on matching values ​​determined by matched filtering of the sensing target, are provided here for illustrative purposes only. The matching value determined by the receiver for matched filtering of the sensing target and the corresponding variation range of the matching value may be the matching value plus the value determined by the variation range. For example, if the matching value is A and the variation range is -∝ to +∝, then the variation range is A-∝ to A+∝. The variation range is a variation range. For example, if the matching value is A and the variation range is -∝ to +∝, then the variation range is A-∝ to A+∝. Based on this, we can know that the candidate parameters of the integer ambiguity are determined between A-∝ and A+∝, where ∝ is the error parameter.

[0128] Step 809: The operating node determines the integer ambiguity parameter based on the carrier phase ranging information.

[0129] Case 2: The receiver sends a first notification message to the transmitter, which is used to indicate the configuration condition

[0130] Referring to FIG9 , the method can be performed by the interaction between the transmitter and the receiver. The method is performed as follows:

[0131] Step 901: The receiver sends a query request message to the transmitter, where the query request message is used to request the frequency information of the carrier ranging supported by the transmitter. Correspondingly, the transmitter receives the query request message.

[0132] Step 902: The transmitter sends a query request response message to the receiver, where the query request response message includes frequency information supported by the transmitter. Correspondingly, the receiver receives the query request response message.

[0133] Optionally, the query request response message also includes: the bandwidth occupied by the frequency points supported by the transmitter.

[0134] Step 903: The receiver determines a first notification message, where the first notification message is used to indicate a configuration condition.

[0135] Optionally, the first notification message includes configuration conditions (which can be understood with reference to the configuration conditions described in FIG. 6 above) and a value of an error threshold parameter (i.e., δ in the description of FIG. 6 above). Furthermore, the receiver may also agree that, when there are multiple pairs of first and second frequency points that meet the configuration conditions, the frequency pair with the largest occupied bandwidth and / or the frequency pair with the smallest error threshold parameter are selected.

[0136] Step 904: The receiver sends a first notification message to the transmitter.

[0137] Step 905: The transmitter determines the first frequency point, the second frequency point, and the target bandwidth according to the first notification message.

[0138] Step 906: The receiver determines the first frequency, the second frequency, and the target bandwidth according to the first notification message.

[0139] The execution order of the above steps 905 and 906 is not limited. Step 905 can be executed first and then step 906, or step 906 can be executed first and then step 905.

[0140] In step 907, the transmitter sends a perception signal to the perception target at the first frequency point, and sends a perception signal to the perception target at the second frequency point.

[0141] In step 908, the receiver receives the sensing signal reflected by the sensing target at the first frequency point, and receives the sensing signal reflected by the sensing target at the second frequency point.

[0142] In step 909, the receiver determines the integer ambiguity parameter based on the carrier phase ranging information.

[0143] The carrier phase ranging information can be understood by referring to step 808 in FIG. 8 , which will not be described in detail here.

[0144] Case 3: The transmitter sends a second notification message to the receiver, which is used to indicate the configuration condition

[0145] Referring to Figure 10, the method can be performed by the interaction between the transmitter and the receiver. The method is performed as follows:

[0146] Step 1001: A transmitter sends a query request message to a receiver, where the query request message is used to request frequency information of carrier ranging supported by the receiver. Correspondingly, the receiver receives the query request message.

[0147] Step 1002: The receiver sends a query request response message to the transmitter, where the query request response message includes frequency information supported by the receiver. Correspondingly, the transmitter receives the query request response message.

[0148] Optionally, the query request response message also includes: the bandwidth occupied by the frequency points supported by the receiver.

[0149] Step 1003: The transmitter determines a second notification message.

[0150] Specifically, the transmitter determines the frequency information of carrier ranging commonly supported by the transmitter and the receiver based on the query request response message, and selects the first and second frequencies and the target bandwidth that meet the configuration conditions described in FIG. 6 as the second notification message.

[0151] Step 1004: The transmitter sends a second notification message to the receiver.

[0152] Step 1005: The transmitter sends a perception signal to the perception target according to the second notification message.

[0153] Specifically, the transmitter sends the perception signal at a first frequency point and sends the perception signal at a second frequency point.

[0154] Step 1006: The receiver receives the sensing signal transmitted by the sensing target according to the second notification message, and determines carrier phase ranging information.

[0155] Specifically, the receiver receives the sensing signal at the first frequency point and receives the sensing signal at the second frequency point. The carrier phase ranging information can be understood with reference to step 808 in FIG8 , which will not be described in detail here.

[0156] Step 1007: The receiver feeds back carrier phase ranging information to the transmitter.

[0157] Step 1008: The transmitter determines the integer ambiguity parameter based on the carrier phase ranging information.

[0158] The above mainly introduces the solution provided by the embodiment of the present application from the perspective of device interaction. It is understandable that, in order to implement the above functions, each device may include a hardware structure and / or software module that performs each function. Those skilled in the art should easily appreciate that, in combination with the units and algorithm steps of each example described in the embodiments disclosed herein, the embodiments of the present application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a function is executed in a hardware or computer software driven hardware manner depends on the specific application and design constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0159] In the embodiments of the present application, the functional units of the device can be divided according to the above method examples. For example, each functional unit can be divided according to each function, or two or more functions can be integrated into one unit. The above integrated unit can be implemented in the form of hardware or software functional units.

[0160] In the case of using an integrated unit, Figure 11 shows a possible exemplary block diagram of a communication device involved in an embodiment of the present application. As shown in Figure 11, the communication device 1100 may include: a processing unit 1101 and a transceiver unit 1102. The processing unit 1101 is used to control and manage the operations of the communication device 1100. The transceiver unit 1102 is used to support communication between the communication device 1100 and other devices. Optionally, the transceiver unit 1102 may include a receiving unit and / or a sending unit, respectively, for performing receiving and sending operations. Optionally, the communication device 1100 may also include a storage unit for storing program code and / or data of the communication device 1100. The transceiver unit may be referred to as an input / output unit, a communication unit, etc. The transceiver unit may be a transceiver. The processing unit may be a processor. When the communication device is a module (such as a chip) in a communication device, the transceiver unit may be an input / output interface, an input / output circuit, or an input / output pin, etc. The transceiver unit may also be referred to as an interface, a communication interface, or an interface circuit, etc. The processing unit may be a processor, a processing circuit, or a logic circuit, etc. Exemplarily, the communication device may be the aforementioned transmitter or receiver, etc.

[0161] The communication device may be the terminal device in the above embodiment, for example, the terminal device or a communication module in the terminal device, or a circuit or chip responsible for the communication function in the terminal device.

[0162] In one possible design, when the communication device 1100 is a terminal device or a communication module in a terminal device, the functions of the processing unit 1101 can be implemented by one or more processors. Specifically, the processor can include a modem chip, or a system-on-chip (SoC) chip or SIP chip containing a modem core. The functions of the transceiver unit 1102 can be implemented by a transceiver circuit.

[0163] In one possible design, when the communication device 1100 is a circuit or chip responsible for communication functions in a terminal device, such as a modem chip or a system-on-chip (SoC) chip or SIP chip containing a modem core, the functions of the processing unit 1101 can be implemented by a circuit system including one or more processors or processor cores in the aforementioned chip. The functions of the transceiver unit 1102 can be implemented by an interface circuit or data transceiver circuit on the aforementioned chip.

[0164] When the above-mentioned communication device is a module applied to a base station, the base station module implements the functions of the base station in the above-mentioned method embodiment. The base station module receives information from other modules in the base station (such as a radio frequency module or antenna), and the information is sent by the UE to the base station; or the base station module sends information to other modules in the base station (such as a radio frequency module or antenna), and the information is sent by the base station to the UE. The base station module here can be the baseband chip of the base station, or it can be a DU or other module. The DU here can be an O-DU in the O-RAN architecture.

[0165] In one embodiment, the communication device 1100 is a transmitter, wherein the transceiver unit 1102 is used to send a perception signal at a first frequency point; and send a perception signal at a second frequency point; wherein the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value frequency points of the difference between the second frequency point and the first frequency point, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value frequency points of the difference, and the target bandwidth is the maximum value of a first bandwidth occupied by the first frequency point and a second bandwidth occupied by the second frequency point.

[0166] In an optional manner, the first frequency point and the second frequency point satisfy the following formula:

[0167] Where min{f} is the minimum frequency, max{f} is the maximum frequency, B is the target bandwidth, and δ is the error threshold parameter, and the value range of δ is [0, 0.15].

[0168] In an optional manner, there are multiple pairs of first frequency points and second frequency points that meet the formula requirements, and the processing unit 1101 is used to select The pair of frequency points corresponding to the minimum value is used as the first frequency point and the second frequency point for sending the perception signal.

[0169] In an optional manner, the transceiver unit 1102 is further configured to receive an indication message from an operation node, where the indication message is used to indicate the first frequency point and the second frequency point.

[0170] In an optional manner, the transceiver unit 1102 is further configured to receive a first notification message from the receiver, where the first notification message is used to indicate a configuration condition; and the processing unit 1101 is configured to determine the first frequency point and the second frequency point according to the configuration condition.

[0171] In an optional manner, the transceiver unit 1102 is further configured to send a second notification message to the receiver, where the second notification message is used to indicate a configuration condition, and the configuration condition is used for the receiver to determine the first frequency point and the second frequency point.

[0172] In another embodiment, the communication device 1100 is a receiver, wherein the transceiver unit 1102 is used to receive a perception signal at a first frequency point; and receive a perception signal at a second frequency point; wherein the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value frequency points of the difference between the second frequency point and the first frequency point, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value frequency points of the difference, and the target bandwidth is the maximum value of the first bandwidth occupied by the first frequency point and the second bandwidth occupied by the second frequency point.

[0173] In an optional manner, the first frequency point and the second frequency point satisfy the following formula:

[0174] Where min{f} is the minimum frequency, max{f} is the maximum frequency, B is the target bandwidth, and δ is the error threshold parameter, and the value range of δ is [0, 0.15].

[0175] In an optional manner, there are multiple pairs of first frequency points and second frequency points that meet the formula requirements, and the processing unit 1101 is used to select The pair of frequency points corresponding to the minimum value is used as the first frequency point and the second frequency point for sending the perception signal.

[0176] In an optional manner, the transceiver unit 1102 is further configured to receive an indication message from an operation node, where the indication message is used to indicate the first frequency point and the second frequency point.

[0177] In an optional manner, the transceiver unit 1102 is further configured to send a first notification message to the transmitter, where the first notification message is used to indicate a configuration condition, and the configuration condition is used for the transmitter to determine the first frequency point and the second frequency point.

[0178] In an optional manner, the transceiver unit 1102 is further configured to receive a second notification message from the transmitter, where the second notification message is used to indicate a configuration condition; and the processing unit 1101 is configured to determine the first frequency point and the second frequency point according to the configuration condition.

[0179] Figure 12 shows a simplified schematic diagram of the terminal device provided in this application. For ease of understanding and illustration, Figure 12 uses a mobile phone as an example of a terminal device. As shown in Figure 12, the terminal device includes a processor system, memory, radio frequency circuitry, an antenna, and input / output devices.

[0180] In one embodiment, the processor system can be packaged as a single processor chip, such as a SoC chip or a SIP chip. In another embodiment, the processor system can be a system consisting of multiple chips, wherein the baseband processor can be packaged as a single chip, or packaged as a single chip with part or all of the RF processing system. The processor is primarily used to process communication protocols and communication data, control terminal devices, execute software programs, and process software program data.

[0181] Memory is mainly used to store software programs and data.

[0182] Radio frequency circuits are mainly used for conversion between baseband signals and radio frequency signals and for processing radio frequency signals.

[0183] Antennas are mainly used to send and receive radio frequency signals in the form of electromagnetic waves.

[0184] Input and output devices, such as touch screens, display screens, keyboards, etc., are mainly used to receive data input by terminal devices and output data to terminal devices.

[0185] It should be noted that some types of terminal devices may not have input and output devices.

[0186] When data needs to be sent, the processor performs baseband processing on the data to be transmitted and outputs the baseband signal to the RF circuit. The RF circuit then performs RF processing on the baseband signal and transmits it via the antenna in the form of electromagnetic waves. When data is sent to a terminal device, the RF circuit receives the RF signal via the antenna, converts it into a baseband signal, and outputs the baseband signal to the processor, which converts the baseband signal into data and processes it.

[0187] For ease of explanation, Figure 12 shows only one memory and processor. In actual terminal device products, one or more processors and one or more memories may exist. Memory may also be referred to as a storage medium or storage device. The memory may be provided independently of the processor or integrated with the processor, and this is not limited in the embodiments of the present application.

[0188] In the embodiment of the present application, the antenna and radio frequency circuit with transceiver functions can be regarded as the transceiver unit of the terminal device, and the processor with processing function can be regarded as the processing unit of the terminal device.

[0189] As shown in Figure 12, terminal device 1200 includes a transceiver unit 1210 and a processing unit 1220. Transceiver unit 1210 may also be referred to as a transceiver, transceiver, transceiver device, etc. Processing unit 1220 may also be referred to as a processor, processing board, processing module, processing device, etc.

[0190] Alternatively, the device in the transceiver unit 1210 that implements the receiving function may be considered a receiving unit, and the device in the transceiver unit 1210 that implements the transmitting function may be considered a transmitting unit. That is, the transceiver unit 1210 includes a receiving unit and a transmitting unit. The transceiver unit may also be sometimes referred to as a transceiver, a transceiver, or a transceiver circuit. The receiving unit may also be sometimes referred to as a receiver, a receiver, or a receiving circuit. The transmitting unit may also be sometimes referred to as a transmitter, a transmitter, or a transmitting circuit.

[0191] It should be understood that the transceiver unit 1210 is used to perform the sending and receiving operations of the terminal device in the above method embodiment, and the processing unit 1220 is used to perform other operations except the sending and receiving operations on the terminal device in the above method embodiment.

[0192] This application also provides a network device. Figure 13 shows a schematic diagram of the structure of a network device 1300 provided in an embodiment of this application. This network device 1300 can be applied to the system shown in Figure 1. For example, network device 1300 can be a network device in the system shown in Figure 1, configured to perform the functions of the network device in the above-described method embodiment. It should be understood that the following is merely illustrative, and that network devices in future communication systems may have other configurations and structures.

[0193] For example, in a 5G communication system, the network device 1300 may include a CU, a DU, and an AAU. Compared to the network device in the LTE communication system, which consists of one or more radio frequency units (such as a remote radio unit (RRU) and one or more indoor baseband processing units (BBU)),

[0194] The non-real-time portion of the original BBU will be separated and redefined as a CU, responsible for handling non-real-time protocols and services. Some of the BBU's physical layer processing functions will be merged with the original RRU and passive antenna into the AAU. The remaining BBU functions will be redefined as the DU, responsible for handling physical layer protocols and real-time services. In short, the CU and DU are differentiated by the real-time nature of their processing, while the AAU is a combination of the RRU and antenna.

[0195] The CU, DU, and AAU can be deployed separately or together, resulting in a variety of network deployment configurations. One possible deployment configuration, as shown in Figure 13, is consistent with traditional 4G network equipment, with the CU and DU deployed on shared hardware. It should be understood that Figure 13 is merely an example and does not limit the scope of protection of this application. For example, the deployment configuration could also include the DU being deployed in the BBU room, the CU being deployed centrally, or the DU being deployed centrally, with the CU being centralized at a higher level.

[0196] The AAU 1400 can implement transceiver functions and correspond to the transceiver unit 1102 in Figure 11. Optionally, the AAU 1400 can also be referred to as a transceiver, a transceiver circuit, or a transceiver, and may include at least one antenna 1401 and a radio frequency unit 1402. Optionally, the AAU 1400 may include a receiving unit and a transmitting unit. The receiving unit may correspond to a receiver (or receiver, receiving circuit), and the transmitting unit may correspond to a transmitter (or transmitter, transmitting circuit). The CU and DU 1500 can implement internal processing functions and correspond to the processing unit 1101 in Figure 11. Optionally, the CU and DU 1500 can control network devices and may be referred to as controllers. The AAU, CU, and DU may be physically located together or physically separated.

[0197] In addition, the network equipment is not limited to the form shown in Figure 13, but can also be other forms: for example: including a BBU and an adaptive radio unit (ARU), or including a BBU and an AAU; it can also be customer premises equipment (CPE), or it can be other forms, which are not limited in this application.

[0198] In one example, the CU and DU1500 can be composed of one or more single boards, and multiple single boards can jointly support a wireless access network with a single access standard (such as an LTE network), or can respectively support wireless access networks with different access standards (such as an LTE network, a 5G network, a future network or other networks). The CU and DU1500 also include a memory 1501 and a processor 1502. The memory 1501 is used to store necessary instructions and data. The processor 1502 is used to control the first network device to perform necessary actions, such as controlling the network device to execute the operation process of the network device in the above method embodiment. The memory 1501 and the processor 1502 can serve one or more single boards. That is, a memory and a processor can be set separately on each single board. Multiple single boards can also share the same memory and processor. In addition, necessary circuits can also be set on each single board.

[0199] It should be understood that the network device shown in Figure 13 is capable of implementing the network device functions involved in the method embodiment of Figure 6. The operations and / or functions of each unit in the network device are respectively for implementing the corresponding processes performed by the network device in the method embodiment of the present application. To avoid repetition, detailed description is appropriately omitted here. The structure of the network device illustrated in Figure 13 is only one possible form and should not constitute any limitation on the embodiment of the present application. The present application does not exclude the possibility of other forms of network device structures that may appear in the future.

[0200] The CU and DU 1500 can be used to perform the actions implemented within the network device described in the previous method embodiments, while the AAU 1400 can be used to perform the actions described in the previous method embodiments in which the network device sends or receives data to or from the terminal device. For details, please refer to the description in the previous method embodiments and will not be repeated here.

[0201] The present application also provides a communication system including a terminal device and a network device, wherein the terminal device can function as either the transmitter or the receiver in FIG. 6 , which is not described in detail here. Furthermore, the network device can function as either the transmitter or the receiver in FIG. 6 , which is not described in detail here.

[0202] Based on the above embodiments, embodiments of the present application further provide a readable storage medium storing instructions that, when executed, implement the method of any of the above embodiments. The readable storage medium may include a USB flash drive, a mobile hard drive, a read-only memory, a random access memory, a magnetic disk, or an optical disk, among other media capable of storing program code.

[0203] It should be noted that all or part of any features in any embodiment of this application can be freely combined if there is no contradiction, and the combined technical solutions are also within the scope of this application.

[0204] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Furthermore, the present application may take the form of a computer program product implemented on one or more computer-usable storage media (including but not limited to magnetic disk storage, compact disc read-only memory (CD-ROM), optical storage, etc.) containing computer-usable program code.

[0205] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to produce a machine, so that the instructions executed by the processor of the computer or other programmable data processing device produce a device for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0206] These computer program instructions may also be stored in a computer-readable memory that can direct a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce a manufactured product including an instruction device that implements the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

[0207] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, so that the instructions executed on the computer or other programmable device provide steps for implementing the functions specified in one or more processes in the flowchart and / or one or more boxes in the block diagram.

Claims

1. A target perception method, characterized in that including: sending a sensing signal at a first frequency point; sending the sensing signal at a second frequency point; wherein, the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference between the second frequency point and the first frequency point, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference, and the target bandwidth is the maximum value between the first bandwidth occupied by the first frequency point and the second bandwidth occupied by the second frequency point.

2. The method according to claim 1, wherein The first frequency point and the second frequency point satisfy the following formula: wherein, min{f} is the minimum frequency point, max{f} is the maximum frequency point, B is the target bandwidth, δ is an error threshold parameter, and the value range of δ is [0, 0.15].

3. The method according to claim 2, wherein There are multiple pairs of the first frequency point and the second frequency point that satisfy the formula requirements. Select the pair of frequency points corresponding to the minimum value of as the first frequency point and the second frequency point for transmitting the sensing signal.

4. The method according to any one of claims 1-3, characterized in that further including: receiving an indication message from an operation node, the indication message being used to indicate the first frequency point and the second frequency point.

5. The method according to any one of claims 1-3, characterized in that, further including: receiving a first notification message from a receiver, the first notification message being used to indicate the configuration condition; determining the first frequency point and the second frequency point according to the configuration condition.

6. The method according to any one of claims 1 to 3, characterized in that, further including: sending a second notification message to a receiver, the second notification message being used to indicate the configuration condition, and the configuration condition being used for the receiver to determine the first frequency point and the second frequency point.

7. A target perception method, characterized in that, including: receiving a sensing signal at a first frequency point; receiving the sensing signal at a second frequency point; wherein, the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1, the minimum frequency point is the minimum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference between the second frequency point and the first frequency point, the maximum frequency point is the maximum frequency point among the first frequency point, the second frequency point, and the absolute value frequency point of the difference, and the target bandwidth is the maximum value between the first bandwidth occupied by the first frequency point and the second bandwidth occupied by the second frequency point.

8. The method according to claim 7, characterized in that, The first frequency point and the second frequency point satisfy the following formula: wherein, min{f} is the minimum frequency point, max{f} is the maximum frequency point, B is the target bandwidth, δ is an error threshold parameter, and the value range of δ is [0, 0.15].

9. The method according to claim 8, characterized in that, There are multiple pairs of the first frequency point and the second frequency point that satisfy the formula requirement. Select the pair of frequency points corresponding to the smallest value of as the first frequency point and the second frequency point for sending the sensing signal.

10. The method according to any one of claims 7-9, characterized in that, further including: receiving an indication message from an operation node, the indication message being used to indicate the first frequency point and the second frequency point.

11. The method according to any one of claims 7-9, characterized in that, further including: sending a first notification message to a transmitter, the first notification message being used to indicate the configuration condition, and the configuration condition being used for the transmitter to determine the first frequency point and the second frequency point.

12. According to the method described in any one of claims 7-9, characterized in that, further including: receiving a second notification message from a transmitter, the second notification message being used to indicate the configuration condition; determining the first frequency point and the second frequency point according to the configuration condition.

13. A communication device, characterized in that, including: a transceiver unit, configured to send a sensing signal at a first frequency point; the transceiver unit is further configured to send the sensing signal at a second frequency point; Among them, the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1. The minimum frequency point is the minimum among the first frequency point, the second frequency point, and the absolute value frequency point of the difference between the second frequency point and the first frequency point. The maximum frequency point is the maximum among the first frequency point, the second frequency point, and the absolute value frequency point of the difference. The target bandwidth is the maximum of the first bandwidth occupied by the first frequency point and the second bandwidth occupied by the second frequency point.

14. The device according to claim 13, wherein The first frequency point and the second frequency point satisfy the following formula: Among them, min{f} is the minimum frequency point, max{f} is the maximum frequency point, B is the target bandwidth, δ is the error threshold parameter, and the value range of δ is [0, 0.15].

15. The device according to claim 14, wherein There are multiple pairs of the first frequency point and the second frequency point that satisfy the formula requirements. Select the pair of frequency points corresponding to the smallest value as the first frequency point and the second frequency point for sending the sensing signal.

16. The device according to any one of claims 13-15, characterized in that, The transceiver unit is further configured to receive an indication message from an operation node, and the indication message is used to indicate the first frequency point and the second frequency point.

17. The device according to any one of claims 13-15, characterized in that, The transceiver unit is further configured to receive a first notification message from a receiver, and the first notification message is used to indicate the configuration condition; The processing unit is configured to determine the first frequency point and the second frequency point according to the configuration condition.

18. The device according to any one of claims 13 - 15, characterized in that, The transceiver unit is further configured to send a second notification message to the receiver, and the second notification message is used to indicate the configuration condition, and the configuration condition is used for the receiver to determine the first frequency point and the second frequency point.

19. A communication device, characterized in that, Comprising: A transceiver unit, configured to receive a sensing signal at a first frequency point; The transceiver unit is further configured to receive the sensing signal at a second frequency point; Among them, the first frequency point and the second frequency point meet the configuration condition that the ratio of the square of the minimum frequency point to the product of the maximum frequency point and the target bandwidth is close to 1. The minimum frequency point is the minimum among the first frequency point, the second frequency point, and the absolute value frequency point of the difference between the second frequency point and the first frequency point. The maximum frequency point is the maximum among the first frequency point, the second frequency point, and the absolute value frequency point of the difference. The target bandwidth is the maximum of the first bandwidth occupied by the first frequency point and the second bandwidth occupied by the second frequency point.

20. The device according to claim 19, wherein The first frequency point and the second frequency point satisfy the following formula: Among them, min{f} is the minimum frequency point, max{f} is the maximum frequency point, B is the target bandwidth, δ is the error threshold parameter, and the value range of δ is [0, 0.15].

21. The device according to claim 20, characterized in that, There are multiple pairs of the first frequency point and the second frequency point that satisfy the formula requirements. Select the pair of frequency points corresponding to the minimum value of as the first frequency point and the second frequency point for sending the sensing signal.

22. The device according to any one of claims 19 - 21, characterized in that, The transceiver unit is further configured to receive an indication message from an operation node, and the indication message is used to indicate the first frequency point and the second frequency point.

23. The device according to any one of claims 19-21, characterized in that, The transceiver unit is further configured to send a first notification message to a transmitter, and the first notification message is used to indicate the configuration condition, and the configuration condition is used for the transmitter to determine the first frequency point and the second frequency point.

24. The device according to any one of claims 19-21, characterized in that, The transceiver unit is further configured to receive a second notification message from the transmitter, and the second notification message is used to indicate the configuration condition; The processing unit is configured to determine the first frequency point and the second frequency point according to the configuration condition.

25. A communication device, characterized in that, Comprising: At least one processor and a memory; The memory is used to store computer programs or instructions; The at least one processor is configured to execute the computer program or instructions to cause the method according to any one of claims 1-12 to be performed.

26. A chip system, characterized in that, The chip system includes: a processing circuit; the processing circuit is coupled to a storage medium; The processing circuit is configured to execute some or all of the computer programs or instructions in the storage medium, and when the some or all of the computer programs or instructions are executed, to implement the method according to any one of claims 1-12.

27. A computer-readable storage medium, characterized in that, The computer-readable storage medium stores instructions that, when executed by a computer, cause the method according to any one of claims 1-12 to be performed.

28. A computer program product comprising a computer program or instructions, characterized in that, When the computer program or instructions are run on a computer, the method according to any one of claims 1-12 is caused to be performed.

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