Communication method and apparatus, and readable storage medium

Abstract

The present application relates to the technical field of wireless communications, and in particular, to a communication method and apparatus, and a readable storage medium. The method comprises: a UE receiving a first message, wherein the first message is used for indicating a first sensing resource; on the basis of a sensing signal received on one or more resource units comprised in the first sensing resource, the UE determining a power value on the one or more resource units; and when the power value on the one or more resource units meets a preset condition, the UE sending a second message to a base station, wherein the second message is used for acquiring a second sensing resource, and the second sensing resource is used by the UE to send a sensing signal. By means of the embodiments of the present application, a sensed target (e.g., a UE having a communication capability) can be enabled to actively trigger uplink sensing, thereby improving the sensing accuracy.

Description

Communication methods, devices and readable storage media

[0001] This application claims priority to Chinese Patent Application No. 202411189485.3, filed on August 27, 2024, entitled "Communication Method, Apparatus and Readable Storage Medium", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of wireless communication technology, and in particular to a communication method, apparatus and readable storage medium. Background Technology

[0003] In the evolution of communication technologies, such as the transition from 5G to 5G-Advanced (5G-A) and 6G, integrated communication and sensing technology is considered a key technology for expanding the service capabilities of mobile communication networks. The core idea of ​​integrated communication and sensing technology is to add sensing capabilities to mobile communication networks, building capabilities for target detection and imaging, thereby integrating communication and sensing capabilities into a single network for harmonious coexistence and mutual benefit. The technical principles of sensing differ somewhat from those of communication. Communication involves the transmitter modulating information onto radio waves and sending it to the receiver, which then demodulates the signal to obtain the information. Sensing, on the other hand, involves the transmitter sending radio waves in a specific direction. When these waves hit a target surface, they are reflected, and the receiver receives and processes these reflected waves to obtain information such as the target's location, speed, and type.

[0004] In a base station-based target sensing scenario, the base station can transmit downlink sensing signals, such as channel state information-reference signals (CSI-RS), and process the echo signal after the downlink sensing signal is scattered by the target to obtain the target's position and velocity. If the target is a user equipment (UE) with communication capabilities, the base station can schedule uplink sensing resources for the UE based on its own self-received sensing measurement results (e.g., measurement power exceeding a preset threshold). The UE can then use these uplink sensing resources to transmit uplink sensing signals, such as sounding reference signals (SRS). The base station processes the received signals to obtain the target's position and velocity. Since uplink sensing only has one-way path loss, the uplink sensing signal has a high signal-to-noise ratio and high sensing accuracy. Therefore, when the base station's self-received sensing accuracy is insufficient, it can trigger uplink sensing to further improve the sensing accuracy.

[0005] However, how to enable uplink sensing to improve sensing accuracy is a problem that those skilled in the art are currently researching. Summary of the Invention

[0006] To address the aforementioned issues, this application provides a communication method, apparatus, and readable storage medium that enables a sensed target (such as a UE with communication capabilities) to actively trigger uplink sensing, thereby improving sensing accuracy.

[0007] The present application is described below from different aspects. It should be understood that the different implementation methods and beneficial effects described below can be referenced from each other.

[0008] The term "target" as used in this application can refer to any tangible object in the environment capable of reflecting electromagnetic waves, such as mountains, forests, or buildings, and can also include mobile objects such as vehicles, drones, pedestrians, and terminal devices. "Target" can also be referred to as a sensed target, a detected target, a sensed object, a sensed device, etc. Correspondingly, for the sensing subject (e.g., a base station), "target" can also be referred to as a sensing target, a sensed object, etc. This application does not impose any limitations on these terms.

[0009] In a first aspect, this application provides a communication method applicable to a first communication device, which may be a terminal device or a component (such as a circuit, chip, or chip system) configured in the terminal device. The method includes: the first communication device receiving a first message, which may be used to indicate a first sensing resource, the first sensing resource including one or more resource units; the first communication device determining a power value on the one or more resource units based on sensing signals received on the one or more resource units included in the first sensing resource; and when the power value on the one or more resource units meets a preset condition, the first communication device sending a second message to a second communication device, the second message being used to acquire a second sensing resource. The second sensing resource is used by the first communication device to send sensing signals, such as SRS.

[0010] For example, the second communication device may be a network device (such as a base station) or a component (such as a circuit, chip, or chip system) configured in a network device.

[0011] For example, the first message mentioned above can be a radio resource control (RRC) signaling or a synchronization signal block (SSB).

[0012] For example, the first sensing resource can be used by a second communication device (such as a base station) to transmit sensing signals, such as channel state information-reference signals (CSI-RS).

[0013] The sensing signal mentioned in this application can be understood as a signal used for sensing, characterized in that the initial amplitude and phase of the sensing signal transmitted by the transmitting end are known to the receiving end. One possible implementation is that the initial amplitude and phase information of the sensing signal can be pre-configured to the receiving end through a configuration sequence, such as a channel state information-reference signal (CSI-RS) or other possible reference signals used for sensing. Alternatively, the sensing signal can also be a communication signal carrying data, and the receiving end can calculate the initial amplitude and phase information of each data signal based on the data verification result and a known modulation scheme. Or, the sensing signal can be other wireless signals that allow the receiving end to know its initial amplitude and phase information. Further details will not be elaborated below.

[0014] This application uses a first message to instruct a second communication device (such as a base station) to send a sensing signal to a first sensing resource. The first communication device (such as a terminal device) receives the sensing signal on the first sensing resource and determines the power value on one or more resource units of the first sensing resource. When the power value meets a preset condition, the first communication device (such as the terminal device) can send a second message to the second communication device (such as the base station) to acquire a second sensing resource. This second sensing resource is used by the first communication device to send the sensing signal. This enables the sensed target (such as a UE with communication capabilities) to actively trigger uplink sensing, improving sensing accuracy.

[0015] In conjunction with the first aspect, in one possible implementation, when the first message is an SSB, before the first communication device sends the second message, the method further includes: when the power value on the one or more resource units meets a preset condition, the first communication device and the second communication device perform random access. After the random access is completed, the first communication device then sends the second message to the second communication device.

[0016] When the terminal device (such as the first communication device) is in an idle state, this application uses SSB to indicate the first sensing resource, and performs random access when the power value on one or more resource units included in the first sensing resource meets the preset conditions, so as to establish an RRC connection between the terminal device (such as the first communication device) and the base station (such as the second communication device), so that the base station can allocate sensing resources to the terminal device and perform sensing with the terminal device.

[0017] In conjunction with the first aspect, in one possible implementation, after the first communication device sends a second message to the second communication device, the method further includes: the first communication device receiving a third message from the second communication device, the third message being used to indicate a second sensing resource. Then, the first communication device can transmit a sensing signal on the second sensing resource to perform uplink sensing.

[0018] After receiving a second message from a terminal device (such as a first communication device), the base station (such as a second communication device) of this application allocates second sensing resources to the terminal device (such as a first communication device) for the terminal device (such as a first communication device) to send sensing signals for sensing, which can improve the sensing accuracy.

[0019] In conjunction with the first aspect, in one possible implementation, the power values ​​on one or more resource units satisfy preset conditions, including one or more of the following: the received signal power value on one or more resource units is higher than a first preset threshold; the received signal power value on one resource unit is higher than the first preset threshold and lower than a second preset threshold; the average received signal power value or total received signal power value on multiple resource units is higher than a third preset threshold; the average received signal power value or total received signal power value on multiple resource units is higher than the third preset threshold and lower than a fourth preset threshold; the maximum power value obtained after filtering and performing Discrete Fourier Transform (DFT) on the received signals on multiple resource units, or after performing filtering and performing Inverse DFT, is higher than a fifth preset threshold; or the maximum power value obtained after filtering and performing DFT on the received signals on multiple resource units, or after performing filtering and performing Inverse DFT, is higher than a fifth preset threshold and lower than a sixth preset threshold. For details regarding the preset conditions and the method by which the first communication device determines whether the preset conditions are met, please refer to the description of the embodiments below, which will not be elaborated here.

[0020] The terminal device (such as the first communication device) of this application determines whether to send a second message to the base station (such as the second communication device) by detecting whether the received signal power value on the resource unit or the maximum power value of the received signal on the resource unit after preset processing meets a preset threshold. This restricts the conditions for the terminal device to send the second message. When the sensing accuracy of the base station (such as the second communication device) is sufficient, there is no need to trigger uplink sensing, thus saving power consumption.

[0021] Secondly, this application provides a communication method applicable to a second communication device, which can be a network device or a component (such as a circuit, chip, or chip system) configured within a network device. The method includes: the second communication device sending a first message, which can be used to indicate a first sensing resource, the first sensing resource including one or more resource units; and sending sensing signals (e.g., CSI-RS) on the one or more resource units included in the first sensing resource; the second communication device receiving a second message, which is used to acquire a second sensing resource. The second sensing resource is used by the first communication device to send sensing signals (e.g., SRS).

[0022] For example, the first message mentioned above can be an RRC signaling message or an SSB message.

[0023] In conjunction with the second aspect, in one possible implementation, when the first message is an SSB, before the second communication device receives the second message, the method further includes: the second communication device randomly accessing the first communication device.

[0024] In conjunction with the second aspect, in one possible implementation, after the second communication device receives the second message, the method further includes: the second communication device sending a third message to the first communication device, the third message being used to indicate the second sensing resource. Then, the first communication device can send a sensing signal on the second sensing resource to perform uplink sensing.

[0025] In conjunction with the first or second aspect, in one possible implementation, the aforementioned first message is RRC signaling. This first message may include the time-domain resource location and frequency-domain resource location of the first sensing resource. For example, the first message (such as RRC signaling) may include one or more of the following: the location of the starting resource block (RB), the total number of RBs, the number of antenna ports, the basic pattern of the sensing signal, the pattern density of the sensing signal, the first time-domain symbol index, the period of the first sensing resource, or the time slot offset of the first sensing resource. The first time-domain symbol index, the period of the first sensing resource, or the time slot offset of the first sensing resource can be used to determine the time-domain resource location of the first sensing resource. The starting RB location, the total number of RBs, the number of antenna ports, the basic pattern of the sensing signal, or the pattern density of the sensing signal, etc., can be used to determine the frequency-domain resource location of the first sensing resource.

[0026] This application uses RRC signaling to indicate the first sensing resource, which enables terminal devices in the connected state to perform uplink sensing and improve sensing accuracy.

[0027] In conjunction with the first or second aspect, in one possible implementation, the aforementioned first message is an SSB. This first message indicates that the first sensing resource is included in the SSB. In other words, a standard predefined synchronization signal block (SSB) may include the first sensing resource. Here, the first sensing resource may be all or part of the sensing resources transmitted by the second communication device (e.g., a base station) transmitting sensing signals. To save on the overhead of the synchronization signal block (SSB), the first sensing resource may be only part of the sensing resources transmitted by the second communication device (e.g., a base station) transmitting sensing signals.

[0028] For example, the aforementioned synchronization signal block (SSB) can occupy four consecutive symbols in the time domain and 20 RBs (i.e., 240 subcarriers) in the frequency domain. The first sensing resource within the SSB can be located in the first symbol of the SSB, occupying one or more subcarriers (or RBs) in the frequency domain, excluding the subcarriers (or RBs) occupied by the primary synchronization signal. In other words, the first sensing resource occupies the first symbol of the SSB in the time domain and one or more RBs in the SSB in the frequency domain, excluding the RBs (e.g., 12 RBs) occupied by the primary synchronization signal. For instance, an RB on the first symbol of the SSB, a certain number of subcarriers away from the resource element (RE) occupied by the primary synchronization signal, can be selected as the first sensing resource. This allows for a guard interval between the sensing signal (e.g., CSI-RS) and the primary synchronization signal, reducing inter-subcarrier interference and minimizing the impact of the sensing signal on the detection of the primary synchronization signal.

[0029] For another example, the aforementioned synchronization signal block (SSB) can occupy four consecutive symbols in the time domain and K RBs in the frequency domain, where K is greater than 20. In this case, the first sensing resource has two possible positions in the SSB: (1) located in the first symbol of the SSB, occupying one or more subcarriers (or RBs) in the frequency domain, excluding the subcarriers (or RBs) occupied by the primary synchronization signal; (2) located in at least one symbol from the second to the fourth symbol of the SSB, occupying one or more subcarriers (or RBs) in the frequency domain, excluding the subcarriers (or RBs) occupied by the secondary synchronization signal and the physical broadcast channel. In other words, the number of RBs in the SSB can be increased, and the added RBs from at least one symbol from the first to the fourth symbol of the SSB can be used to carry sensing signals (such as CSI-RS). These RBs are the first sensing resources. For example, when the first sensing resource is located in at least one symbol from the second to the fourth symbol of the SSB, the subcarriers occupied by the first sensing resource in the frequency domain can be spaced a certain number of subcarriers from the REs occupied by the physical broadcast channel. This allows for a protective gap between sensing signals (such as CSI-RS) and system messages transmitted through the physical broadcast channel, reducing interference between subcarriers and minimizing the impact of sensing signals on system message detection.

[0030] This application uses SSB to indicate the first sensing resource, which enables idle terminal devices to perform uplink sensing and improves sensing accuracy.

[0031] Thirdly, this application provides a communication device, which may be a first communication device or a chip within a first communication device. The communication device is used to execute the methods described in the first aspect or any possible implementation thereof. The communication device includes modules for executing the methods described in the first aspect or any possible implementation thereof.

[0032] Fourthly, this application provides a communication device, which may be a second communication device or a chip within a second communication device. The communication device is used to execute the methods described in the second aspect or any possible implementation thereof. The communication device includes modules having the ability to execute the methods described in the second aspect or any possible implementation thereof.

[0033] In the third or fourth aspect, the aforementioned communication device may include a transceiver module and a processing module. Further details regarding the transceiver module and processing module can be found in the device embodiments shown below. The beneficial effects of the third and fourth aspects described above can be referenced in the relevant descriptions of the first and second aspects, and will not be repeated here.

[0034] Fifthly, embodiments of this application provide a communication device including a processor for executing the methods shown in the first aspect, the second aspect, or any of the aspects or any possible implementations described above. The processor executes a program stored in a memory, and when the program is executed, the methods shown in the first aspect, the second aspect, or any of the aspects or any possible implementations described above are executed.

[0035] In conjunction with the fifth aspect, in one possible implementation, the memory is located outside the aforementioned communication device.

[0036] In conjunction with the fifth aspect, in one possible implementation, the memory is located within the aforementioned communication device.

[0037] In this embodiment, the processor and memory can also be integrated into a single device, that is, the processor and memory can be integrated together. For example, the communication device can be a chip.

[0038] Sixthly, this application provides a chip that includes at least a processor. The processor is configured to execute program instructions that cause a communication device on which the chip is mounted to perform the methods described in the first aspect, the second aspect, or any possible implementation thereof.

[0039] In conjunction with the sixth aspect, in one possible implementation, the chip may further include an interface, with the processor coupled to the interface. This interface is used for exchanging (or sending / receiving or inputting / outputting) information or data. The interface may be a communication interface or a transceiver. The transceiver may be a radio frequency module in a communication device, or a combination of a radio frequency module and an antenna, or an input / output interface of a chip or circuit.

[0040] In a seventh aspect, this application provides a readable storage medium storing program instructions that, when run on a computer, cause the computer to perform the method described in the first aspect, or the second aspect, or any possible implementation thereof.

[0041] Eighthly, this application provides a computer program product containing program instructions that, when run, causes the method described in any possible implementation of the first aspect, or the second aspect, or any of the aspects to be executed.

[0042] Ninthly, this application provides a communication system, which includes at least a first communication device and a second communication device. The first communication device is used to perform the method described in the first aspect or any possible implementation thereof; the second communication device is used to perform the method described in the second aspect or any possible implementation thereof.

[0043] The technical effects achieved in the above aspects can be referred to each other or to the beneficial effects in the method embodiments shown below, which will not be repeated here. Attached Figure Description

[0044] Figure 1 is a schematic diagram of the perception pattern classification provided in an embodiment of this application;

[0045] Figure 2 is a schematic diagram of a sensing scene provided in an embodiment of this application;

[0046] Figure 3 is a schematic diagram of another sensing scenario provided by an embodiment of this application;

[0047] Figure 4 is a flowchart illustrating a communication method provided in an embodiment of this application;

[0048] Figure 5 is a schematic diagram of a basic pattern of a sensing signal provided in an embodiment of this application;

[0049] Figure 6a is a schematic diagram of an SSB structure provided in an embodiment of this application;

[0050] Figure 6b is a schematic diagram of another structure of the SSB provided in an embodiment of this application;

[0051] Figure 7 is a schematic diagram of a communication device provided in an embodiment of this application;

[0052] Figure 8 is a schematic diagram of another structure of the communication device provided in an embodiment of this application;

[0053] Figure 9 is another structural schematic diagram of the communication device provided in the embodiments of this application. Detailed Implementation

[0054] In the description of this application, terms such as "first" and "second" are used only to distinguish different objects, not to describe a specific order. Furthermore, unless otherwise stated, " / " means "or," for example, A / B can mean A or B. "And / or" in this document is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A alone, A and B simultaneously, and B alone. Additionally, "at least one" refers to one or more, and "multiple" refers to two or more. "One or more of the following" or similar expressions refer to any combination of these items, including any combination of single or multiple items. For example, at least one of a, b, or c can represent: a, b, c; a and b; a and c; b and c; or a and b and c. Where a, b, and c can be single or multiple.

[0055] The terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0056] In this application, the words "exemplary" or "for example" are used to indicate that something is an example, illustration, or illustration. Any embodiment or design described as "exemplary," "for example," or "for example" in this application should not be construed as being more preferred or advantageous than other embodiments or designs. Rather, the use of the words "exemplary," "for example," or "for example" is intended to present the relevant concepts in a specific manner.

[0057] In this application, “when…”, “if” and “if” all refer to the device making a corresponding action under certain objective circumstances, and are not time-limited, nor do they require the device to make a judgment when it is implemented, nor do they mean that there are other limitations.

[0058] In this application, the use of singular designations for elements is intended to represent "one or more" rather than "one and only one," unless otherwise specified.

[0059] In addition, the terms “system” and “network” are often used interchangeably in this article.

[0060] In this application, "instruction" can include direct instruction, indirect instruction, explicit instruction, and implicit instruction. When describing certain information to indicate A, it can be understood that the information carries A, directly indicates A, or indirectly indicates A. Direct instruction A can be understood as including the information A; implicit instruction A can be understood as indicating A through the correspondence between A and B and the direct instruction B. The correspondence between A and B can be predefined, pre-stored, pre-burned, or pre-configured.

[0061] In this application, determining information D based on information C includes determining information D based solely on information C, as well as determining information D based on information C and other information. Furthermore, the use of information C to determine information D can also include indirect determination, such as when information D is determined based on information E, and information E is determined based on information C.

[0062] In this application, "send" and "receive" indicate the direction of signal transmission. For example, "send information to XX" can be understood as the destination of the information being XX, which can include direct transmission via the air interface or indirect transmission by other units or modules via the air interface. "Receive information from YY" can be understood as the source of the information being YY, which can include direct reception from YY via the air interface or indirect reception from YY by other units or modules via the air interface. "Send" can also be understood as the "output" of a chip interface, and "receive" can also be understood as the "input" of a chip interface. In other words, sending and receiving can occur between devices, for example, through buses, traces, or interfaces between components, modules, chips, software modules, or hardware modules within a device.

[0063] The technical solutions provided in this application can be applied to various communication systems, such as: 5th generation (5G) communication systems or new radio (NR), 5G-Advanced (5G-A) systems, 6th generation (6G) communication systems, open-radio access network (O-RAN) systems, or future communication systems, such as 7th generation systems. The technical solutions provided in this application can also be applied to: long term evolution (LTE) systems, worldwide interoperability for microwave access (WiMAX) communication systems, universal mobile telecommunication system (UMTS), next-generation wireless local area network systems, networks integrating multiple systems, Internet of Things (IoT) systems, or vehicle-to-everything (V2X) systems, etc.

[0064] In one possible implementation, the communication system includes communication devices that can wirelessly communicate with each other using air interface resources. These communication devices may include network devices and terminal devices; the network devices may also be called base station devices or access network devices. Air interface resources may include at least one of time-domain resources, frequency-domain resources, code resources, and spatial resources. In this application, "at least one" may also be described as one or more, and "multiple" may be two, three, four, or more; this application does not impose any limitations.

[0065] In wireless communication systems, communication can be categorized into different types based on the types of transmitting and receiving nodes. Generally, sending information from network devices (such as base stations) to terminal devices (such as UEs) is called downlink (DL) communication, and sending information from terminal devices to network devices is called uplink (UL) communication. In fifth-generation (5G) wireless communication systems or new radio access technology (NR) systems, the physical downlink shared channel (PDSCH) and physical uplink shared channel (PUSCH) are used for DL ​​and UL transmission of unicast data, respectively. The physical uplink control channel (PUCCH) is used by UEs to send feedback information, channel state reports, and uplink scheduling requests, while the physical downlink control channel (PDCCH) is used to transmit downlink control information (DCI), such as scheduling decisions for PDSCH, PUSCH, and PUCCH.

[0066] With the evolution of communication technology, communication frequency bands have developed sensing capabilities. When network devices (such as base stations) or terminal devices (such as UEs) have sensing capabilities, communication systems can sense and identify specific objects to obtain their current state, such as location and speed.

[0067] Perception can generally be divided into two types based on its mode: single-site perception and dual-site perception. Single-site perception can be understood as the same device transmitting and receiving the sensing signal. In terms of the perception process, this site both transmits and receives the reflected signal from the target surface; therefore, single-site perception is also called the self-transmitting and self-receiving mode. For dual-site perception, the transmitting and receiving ends of the sensing signal are two different devices. In terms of the perception process, after sensing site A transmits the sensing signal, the signal reflected from the target surface is received by sensing site B; therefore, dual-site perception is also called the A-transmitting and B-receiving mode. See Figure 1, which is a schematic diagram of the perception mode classification provided in this application embodiment. As shown in Figure 1, from the perspective of perception mode classification, it can include six sub-scenarios, such as: (1) base station self-transmitting and self-receiving, (2) base station A-transmitting and B-receiving, (3) base station transmitting and UE receiving, (4) UE self-transmitting and self-receiving, (5) UE transmitting and base station receiving, and (6) UE A-transmitting and B-receiving. Among these, sub-scenarios (3) to (6) are also called UE-assisted perception scenarios.

[0068] The term "target" as used in this application can refer to any tangible object in the environment capable of reflecting electromagnetic waves, such as mountains, forests, or buildings, and can also include movable objects such as vehicles, drones, pedestrians, and terminal devices. Based on whether the target is moving, it can be divided into moving targets (e.g., vehicles, drones) and stationary targets (e.g., roads, tall buildings). Depending on the method used to model the scattering points, targets can be divided into point targets (e.g., small drones) and extended multi-point targets (also known as area targets, such as large buildings).

[0069] In this application, "target" may also be referred to as a sensed target, a detected target, a sensed object, a sensed device, or a sensed device, etc., and this application does not impose any restrictions.

[0070] This application's embodiments mainly focus on scenarios where a terminal device (such as a UE) sends sensing signals and a network device (such as a base station) receives the sensing signals.

[0071] For example, referring to Figure 2, which is a schematic diagram of a sensing scenario provided by an embodiment of this application. Figure 2 illustrates a scenario where a terminal device (e.g., UE, drone, etc.) sends a sensing signal, and a network device (e.g., base station) receives the sensing signal. Both the network device and the terminal device have sensing capabilities, and optionally, communication capabilities as well. In other words, both the network device and the terminal device have the ability to send sensing signals and / or receive and process echo signals reflected by targets in the environment, and optionally, the ability to communicate with other devices. For example, the terminal device can be wirelessly connected to the network device. As shown in Figure 2, the terminal device can send a sensing signal, such as an uplink sounding reference signal (UL SRS), to the network device. This sensing signal reaches the network device after being reflected by targets in the environment. The network device processes the received sensing signal to obtain information such as the target's position and speed.

[0072] As another example, referring to Figure 3, which is a schematic diagram of another sensing scenario provided by an embodiment of this application, Figure 3 illustrates two ways in which a network device (e.g., a base station) senses a target in the integrated communication and sensing technology. As shown in Figure 3, the network device (e.g., a base station) can send downlink sensing signals, such as channel state information-reference signals (CSI-RS), and process the echo signal after the downlink sensing signal is scattered by the target to obtain the position and velocity of the target. If the sensed target is a terminal device with communication capabilities (e.g., a UE, a drone, etc.), the network device (e.g., the base station) can schedule uplink sensing resources for the terminal device (e.g., a UE, a drone, etc.) based on its own self-generated and self-received sensing measurement results (e.g., the measurement power is higher than a certain preset threshold). The terminal device (e.g., a UE, a drone, etc.) can then use the uplink sensing resources to send uplink sensing signals, such as sounding reference signals (SRS), and the network device (e.g., the base station) processes the received signals to obtain the position and velocity of the sensed target. Since uplink sensing only has a one-way path loss, the signal-to-noise ratio of uplink sensing signals is high, and the sensing accuracy is high, when the sensing accuracy of network devices (such as base stations) is insufficient, network devices (such as base stations) can trigger uplink sensing to further improve the sensing accuracy.

[0073] It is understood that the network device as the base station and the drone as the terminal device in Figures 2 and 3 above are examples, and do not imply any limitation on the types of network devices and terminal devices in this application.

[0074] In one possible implementation, the network device and terminal device in Figure 2 or Figure 3 above can cooperate with each other to implement the communication method provided in this application. For details, please refer to the description of the method embodiments below, which will not be elaborated here.

[0075] In this context, network equipment can be an entity on the network side used to transmit or receive signals. For example, a network equipment can be a base station (BS), which is a device deployed in a radio access network capable of wirelessly communicating with terminals. Base stations can take many forms, such as macro base stations, micro base stations, relay stations, and access points. Exemplarily, the base station involved in the embodiments of this application can be a base station in 5G, a base station in a 6th generation (6G) mobile communication system, an access network device or module of an access network device in an open radio access network (O-RAN) system, a base station in a future mobile communication system, an access node in a Wi-Fi system, or an evolved node B (eNB) in LTE, etc. Exemplarily, multiple network devices in a communication system can be base stations of the same type or different types; this application is not limited to these. In 5G, a base station can also be called a transmission reception point (TRP) or a 5G base station (next-generation node B, gNB). Base stations can also be replaced by the following names, such as: wireless access point, node B, transmitting point (TP), master MeNB, secondary SeNB, multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), centralized unit (CU), distributed unit (DU), location node, IAB donor, etc. For example, in vehicle-to-everything (V2X) technology, network equipment can be a roadside unit (RSU).

[0076] The network device in this application embodiment can be an integrated base station, or a base station including a centralized unit (CU) and / or a distributed unit (DU). This allows multiple network functional entities to implement some functions of the access network device. These network functional entities can be network elements in hardware devices, software functions running on dedicated hardware, or virtualized functions instantiated on a platform (e.g., a cloud platform). For example, a base station including a CU and a DU can also be called a base station with separate CU and DU, such as a base station including gNB-CU and gNB-DU. The CU can also be separated into a CU control plane (CU-CP) and a CU user plane (CU-UP), such as a base station including gNB-CU-CP, gNB-CU-UP, and gNB-DU. Alternatively, the network device in this application embodiment can also be a radio unit (RU). Furthermore, the network device in this application embodiment can also be an Open Radio Access Network (O-RAN) architecture, etc. This application embodiment does not limit the specific deployment method of the network device. For example, when the network device is an O-RAN architecture, the network device shown in the embodiments of this application can be an access network device in O-RAN, such as a combination of one or more of CU, DU, or RU, or a module in the access network device. In the O-RAN system, CU can also be called open (O)-CU, CU-CP can also be called O-CU-CP, CU-UP can also be called O-CU-UP, DU can also be called O-DU, and RU can also be called O-RU.

[0077] In this application embodiment, the device used to implement the function of the network device can be the network device itself; it can also be a device capable of supporting the network device to implement the function, such as a chip system, a communication module, or a modem, etc., and this device can be installed in the network device. In the technical solution provided in the embodiments of this application, the second communication device is used as an example to describe the technical solution provided in the embodiments of this application. The network device can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology or specific device form used by the network device.

[0078] A terminal device can be a wireless transceiver that can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; on water (such as on ships); or in the air (such as on airplanes, balloons, and satellites). Terminal devices can be used to connect people, objects, and machines, and can be widely applied in various scenarios. Examples include: cellular communication, device-to-device (D2D), V2X, peer-to-peer (P2P), machine-to-machine (M2M), machine-type communication (MTC), Internet of Things (IoT), virtual reality (VR), augmented reality (AR), industrial control, self-driving, remote medical care, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, smart home, drones, robots, remote sensing, passive sensing, positioning, navigation, autonomous delivery and mobility, etc. Terminal equipment can be user equipment (UE) conforming to the 3rd Generation Partnership Project (3GPP) standards, including fixed equipment, mobile equipment, handheld devices, wearable devices, cellular phones, smartphones, session initiation protocol (SIP) phones, laptops, personal computers, smart books, vehicles, satellites, global positioning system (GPS) devices, drones, helicopters, aircraft, ships, remote control devices, smart home devices, and industrial equipment. Terminal equipment can also be communication equipment in future wireless communication systems. Terminal equipment is sometimes referred to as a terminal, user equipment (UE), user terminal, user device, user unit, user station, access terminal, access station, mobile station (MS), or mobile terminal (MT), etc.

[0079] In this application embodiment, the device for implementing the terminal's functions can be a terminal itself; it can also be a device capable of supporting the terminal in implementing these functions, such as a chip system, a communication module, or a modem, etc., which can be installed in the terminal. In this application embodiment, the chip system can be composed of chips, or it can include chips and other discrete devices. In the technical solutions provided in this application embodiment, the first communication device is used as an example to describe the technical solutions provided in this application embodiment. The embodiments of this application do not limit the specific technology or specific device form adopted by the terminal device.

[0080] It is understood that the application scenarios described above are for the purpose of more clearly illustrating the technical solutions of this application, and do not constitute a limitation on the technical solutions provided in this application. Those skilled in the art will recognize that, with the evolution of system architecture or application scenarios, the technical solutions provided in this application are equally applicable to similar technical problems.

[0081] Based on the above, the communication method of this application embodiment will be described below by way of example.

[0082] In this application, unless otherwise specified, the same or similar parts between various embodiments or implementations can be referred to each other. In the various embodiments of this application, and in the various implementation methods / methods / implementations within each embodiment, unless otherwise specified or logically conflicting, the terminology and / or descriptions between different embodiments and between the various implementation methods / methods / implementations within each embodiment are consistent and can be mutually referenced. The technical features in different embodiments and the various implementation methods / methods / implementations within each embodiment can be combined according to their inherent logical relationships to form new embodiments, implementation methods, methods, or implementation approaches. The embodiments described below do not constitute a limitation on the scope of protection of this application.

[0083] This application provides a communication method, apparatus, and readable storage medium that enables the UE to which the perceived target belongs to actively trigger uplink sensing, thereby improving sensing accuracy.

[0084] Referring to Figure 4, which is a schematic flowchart of a communication method provided in an embodiment of this application, the first communication device can be a terminal device (such as a UE or a drone) as shown in Figure 2 or Figure 3, and the second communication device can be a network device (such as a base station) as shown in Figure 2 or Figure 3. As shown in Figure 4, the communication method may include, but is not limited to, the following steps:

[0085] S101, the second communication device sends a first message, which indicates a first sensing resource, the first sensing resource including one or more resource units. Correspondingly, the first communication device receives the first message.

[0086] In one possible implementation, the first message can be radio resource control (RRC) signaling or a synchronization signal block (SSB). For example, when the first communication device (e.g., UE) is in a connected state, the first message can be RRC signaling; when the first communication device (e.g., UE) is in an idle state, the first message can be an SSB. This first message can be used to indicate a first sensing resource, which can be used by a second communication device (e.g., a base station) to transmit sensing signals, such as channel state information-reference signals (CSI-RS). The first sensing resource can include one or more resource elements. For example, in this embodiment, the resource element can be a resource element (RE). Of course, the resource element in this embodiment can also be a resource block (RB), or other resources in the time and frequency domains; this embodiment is not limited.

[0087] Typically, a Resource Block (RB) comprises multiple Resource Exchanges (REs). An RE can be understood as a resource unit of one symbol length (e.g., an orthogonal frequency division multiplexing (OFDM) symbol) in the time domain and one subcarrier width in the frequency domain. An RB can be understood as a time slot in the time domain and a resource block of 12 subcarriers in the frequency domain. For example, in LTE or NR systems, one RE occupies one OFDM symbol (1 / 14ms) in the time domain and one subcarrier (15kHz) in the frequency domain. One RB occupies seven OFDM symbols in the time domain and 12 consecutive subcarriers in the frequency domain.

[0088] The following discussion addresses the two different implementations of the first message, outlining the methods for indicating the first sensing resource in different scenarios.

[0089] (1) The first message mentioned above is an RRC signaling message.

[0090] In one possible implementation, the second communication device (e.g., a base station) can determine its own self-transmitted and self-received first sensing resource, which can be used by the second communication device to send sensing signals. The second communication device (e.g., the base station) can then send a first message (e.g., RRC signaling), which can be used to indicate the first sensing resource. Since the base station does not know which UE the sensed target belongs to at this time, the second communication device (e.g., the base station) can send the first message to one or more communication devices (e.g., UEs) within the cell. Furthermore, since the first communication device (e.g., the UE) is in a connected state and connected to the second communication device (e.g., the base station), all one or more communication devices within the cell can be the first communication device, and therefore the first communication device can receive the first message.

[0091] In one possible implementation, the first message (such as RRC signaling) may include the time-domain resource location and frequency-domain resource location of the first sensing resource. For example, the first message (such as RRC signaling) may include one or more of the following: the starting RB location, the total number of RBs, the number of antenna ports, the basic pattern of the sensing signal, the pattern density of the sensing signal, the first time-domain symbol index, the period of the first sensing resource, or the time slot offset of the first sensing resource. The first time-domain symbol index, the period of the first sensing resource, or the time slot offset of the first sensing resource can be used to determine the time-domain resource location of the first sensing resource. The starting RB location, the total number of RBs, the number of antenna ports, the basic pattern of the sensing signal, or the pattern density of the sensing signal can be used to determine the frequency-domain resource location of the first sensing resource.

[0092] For example, the first message (such as RRC signaling) may not include the fields for starting RB location and total number of RBs. When the first message (such as RRC signaling) does not include the fields for starting RB location and total number of RBs, the first perceived resource by default includes all RBs on the current bandwidth part (BWP).

[0093] For example, the number of antenna ports can be any value of 1, 2, or 4. To obtain aperture gain, when the number of antenna ports is 2, antenna ports can be selected to be arranged at any two corners of the two-dimensional (2D) antenna panel, and when the number of antenna ports is 4, antenna ports can be selected to be arranged at the four corners of the 2D antenna panel.

[0094] For example, the pattern of a sensing signal can be composed of one or more basic patterns. The basic pattern of a sensing signal can include multiple REs. Sensing signals on different REs can use different sensing sequences. Taking CSI-RS as an example, refer to Figure 5, which is a schematic diagram of a basic pattern of a sensing signal provided in an embodiment of this application. Figure 5 shows the basic pattern of CSI-RS under different types of code division multiplexing (CDM) (i.e., the arrangement of multiple REs within one RB). In Figure 5, the horizontal axis represents symbols, the vertical axis represents subcarriers, each small square represents one RE, and the gray squares represent the basic pattern of sensing signals (such as CSI-RS) under different types of CDM. 3GPP defines four types of CDM for CSI-RS: noCDM, fd-CDM2, cdm4-FD2-TD2, and cdm8-FD2-TD4. As shown in Figure 5, noCDM indicates the use of one RE, with one RE corresponding to one antenna port, and no code division multiplexing. fd-CDM2 (CDM2 for short) indicates the use of 2 REs (two consecutive subcarriers in the frequency domain and one OFDM symbol in the time domain, as shown in Figure 5), with 2 REs corresponding to 2 antenna ports. cdm4-FD2-TD2 (CDM4 for short) indicates the use of 4 REs (two consecutive subcarriers in the frequency domain and two consecutive OFDM symbols in the time domain, as shown in Figure 5), with 4 REs corresponding to 4 antenna ports. cdm8-FD2-TD4 (CDM8 for short) indicates the use of 8 REs (two consecutive subcarriers in the frequency domain and four consecutive OFDM symbols in the time domain, as shown in Figure 5), with 8 REs corresponding to 8 antenna ports.

[0095] For example, the pattern density of the sensing signal can represent how many basic patterns of the sensing signal are contained in each RB, such as 0.5, 1, or 3. For example, take fd-CDM2 as an example of the basic pattern of the sensing signal. Assume that the pattern density of the sensing signal is 1, which means that each RB includes 1 basic pattern of the sensing signal (i.e., 2 REs), and the arrangement of the basic pattern of the sensing signal is as shown in the 2 REs occupied by fd-CDM2 in Figure 5 above; further assume that the pattern density of the sensing signal is 3, which means that each RB includes 3 basic patterns of the sensing signal (i.e., 6 REs), and the arrangement of each basic pattern of the sensing signal (i.e., every 2 REs) is as shown in the 2 REs occupied by fd-CDM2 in Figure 5 above. These 3 basic patterns of the sensing signal can be equally spaced (e.g., spaced 4 subcarriers in the frequency domain).

[0096] For example, the first temporal symbol index may represent the index of the first symbol of the first sensing resource in the temporal domain.

[0097] For example, the period and time slot offset of the first sensing resource, the period P can be a value selected from a preset set of integer time slots, and the time slot offset can be in the range of {0,1,2,…,(P-1)}.

[0098] In one possible implementation, the transmission time slot of the sensing signal (taking CSI-RS as an example) can satisfy the following formula (1-1).

[0099] in, n represents the number of time slots contained in a radio frame. f Indicates the current frame number. T represents the current slot number of the current frame. offset T represents the time slot offset of the first sensing resource. CSI-RS Let P represent the period of the first sensing resource.

[0100] (2) The first message above is SSB

[0101] In one possible implementation, a standard predefined synchronization signal block (SSB) may be included, which may contain a first sensing resource. This first sensing resource can be used by a second communication device to transmit (partially or entirely) sensing signals. The first sensing resource may be all or part of the sensing resources that the second communication device (e.g., a base station) uses to transmit and receive sensing signals. To save on the overhead of the synchronization signal block (SSB), the first sensing resource may be only part of the sensing resources that the second communication device (e.g., a base station) uses to transmit sensing signals. In other words, the second communication device can transmit sensing signals on other sensing resources besides the first sensing resource. The second communication device (e.g., a base station) may broadcast a first message (e.g., an SSB) that includes the first sensing resource. Therefore, a first communication device (e.g., a UE) in an idle state can also receive the first message (e.g., an SSB).

[0102] In one possible implementation, the aforementioned synchronization signal block (SSB) may further include a primary synchronization signal (PSS), a secondary synchronization signal (SSS), and a physical broadcast channel (PBCH). It can be understood that when a UE powers on and enters the NR system, it first searches for the PSS. During this stage, the UE searches for cells on a given carrier frequency. When the UE detects the PSS, it can synchronize to the PSS period and also learn the timing of the SSS transmission. By detecting the SSS, the UE can determine the physical cell identifier (PCI) of the cell, facilitating subsequent access to that cell.

[0103] In one possible implementation, the aforementioned synchronization signal block (SSB) can occupy four consecutive symbols in the time domain and 20 subcarriers (RBs) (i.e., 240 subcarriers) in the frequency domain. In this case, the position of the first sensing resource within the SSB can be: located in the first symbol of the SSB, occupying one or more subcarriers (or RBs) in the frequency domain, excluding the subcarriers (or RBs) occupied by the primary synchronization signal (PSS). In other words, the first sensing resource occupies the first symbol of the SSB in the time domain and occupies one or more RBs in the SSB in the frequency domain, excluding the RBs occupied by the PSS (e.g., 12 RBs). For example, an RB on the first symbol of the SSB, a certain number of subcarriers away from the REs occupied by the PSS, can be selected as the first sensing resource. This allows for a certain guard interval between the sensing signal (e.g., CSI-RS) and the PSS, reducing inter-subcarrier interference and minimizing the impact of the sensing signal on PSS detection.

[0104] Referring to Figure 6a, which is a schematic diagram of an SSB structure provided in an embodiment of this application, the horizontal axis of Figure 6a represents time-domain resources (such as symbols), and the vertical axis represents frequency-domain resources (such as subcarriers). As shown in Figure 6a, the SSB occupies four consecutive symbols in the time domain, namely symbol0, symbol1, symbol2, and symbol3, and can occupy 20 RBs in the frequency domain. The PSS and SSS can be located in the first symbol (i.e., symbol0) and the third symbol (i.e., symbol2) of the SSB, respectively, and each occupies 127 subcarriers in the frequency domain. As shown in Figure 6a, the PBCH can occupy the second symbol (symbol 1) and the fourth symbol (symbol 3) of the SSB, and also occupy 48 subcarriers at each end of the third symbol (symbol 2) of the SSB, for a total of 576 (240+240+48×2=576) REs (including the DMRS for PBCH, i.e., the demodulation reference signal (DMRS) of the PBCH). In the third symbol (symbol 2) of the SSB, the REs occupied by the SSS are spaced 9 REs above and 8 REs below the PBCH, respectively. This provides a guard interval between the SSS and PBCH signals, reducing interference between subcarriers. The REs occupied by the PBCH can be understood as the master information block (MIB). The PBCH can include information such as the system frame number, cell occupancy identifier, and system information block (SIB) parameter set. The UE can use this information to obtain other system messages broadcast by the network.

[0105] As shown in Figure 6a, the first sensing resource can be located in the first symbol of the SSB (i.e., symbol 0), occupying two RBs (a total of 24 REs) in the frequency domain. These two RBs (a total of 24 REs) are located at the upper and lower ends of the REs occupied by the PSS, respectively. One RB is separated from the REs occupied by the PSS by 9 REs, and the other RB is separated from the REs occupied by the PSS by 8 REs. It can be understood that the position and / or size (referring to the number of RBs) of the first sensing resource in the SSB shown in Figure 6a is only an example. In practical applications, the position and / or size of the first sensing resource may be different from that in Figure 6a, but they all satisfy the condition that "the first sensing resource is located in the first symbol of the SSB, occupying one or more subcarriers (or RBs) in the frequency domain other than the subcarriers (or RBs) occupied by the PSS".

[0106] In another possible implementation, the aforementioned Synchronization Signal Block (SSB) can occupy four consecutive symbols in the time domain and K RBs in the frequency domain, where K is greater than 20. In this case, the first sensing resource has two possible positions in the SSB: (1) located in the first symbol of the SSB, occupying one or more subcarriers (or RBs) in the frequency domain, excluding the subcarriers (or RBs) occupied by the PSS; (2) located in at least one symbol from the second to the fourth symbol of the SSB, occupying one or more subcarriers (or RBs) in the frequency domain, excluding the subcarriers (or RBs) occupied by the SSS and PBCH. In other words, the number of RBs in the SSB can be increased, and the added RBs in at least one symbol from the first to the fourth symbol of the SSB can be used to carry sensing signals (such as CSI-RS). These RBs are the first sensing resources. For example, when the first sensing resource is located in the first symbol of the SSB, it can be spaced a certain number of subcarriers from the REs occupied by the PSS in the frequency domain. This allows for a protective gap between the sensing signal (such as CSI-RS) and the PSS signal, reducing interference between subcarriers and minimizing the impact of the sensing signal on PSS detection.

[0107] Referring to Figure 6b, which is a schematic diagram of another SSB structure provided in an embodiment of this application, the horizontal axis of Figure 6b represents time-domain resources (such as symbols), and the vertical axis represents frequency-domain resources (such as subcarriers). As shown in Figure 6b, the SSB occupies four consecutive symbols in the time domain, namely symbol 0, symbol 1, symbol 2, and symbol 3, and can occupy 22 RBs in the frequency domain. As shown in Figure 6b, the PSS and SSS can be located in the first symbol (i.e., symbol 0) and the third symbol (i.e., symbol 2) of the SSB, respectively, and each occupies 127 subcarriers in the frequency domain. The PBCH is located in the 2nd to 4th symbols of the SSB (symbols 1-3). In the frequency domain, it occupies 240 subcarriers (20 RBs) on the 2nd symbol (symbol 1) and the 4th symbol (symbol 3), and also occupies 48 subcarriers at each end of the 3rd symbol (symbol 2) of the SSB, for a total of 576 (240+240+48×2=576) REs (including DMRS for PBCH). Among them, on the 3rd symbol (symbol 2) of the SSB, the REs occupied by the SSS are separated from the PBCH by 9 REs at the top and 8 REs at the bottom.

[0108] As shown in Figure 6b, the first sensing resource is located in the 2nd symbol (i.e., symbol 1) and 4th symbol (i.e., symbol 3) of the SSB, occupying the 1st RB (i.e., RB 0) and the 22nd RB (i.e., RB 21) in the frequency domain. It is understood that the position and / or size (referring to the number of RBs) of the first sensing resource in the SSB shown in Figure 6b is merely an example. In practical applications, the position and / or size of the first sensing resource may differ from that in Figure 6b, but both will satisfy the aforementioned two positions of the first sensing resource in the SSB.

[0109] S102, the first communication device determines the power value of one or more resource units based on the sensing signals received on one or more resource units included in the first sensing resource.

[0110] S103, when the power value on one or more resource units meets a preset condition, the first communication device sends a second message to the second communication device. The second message is used to acquire a second sensing resource. The second sensing resource is used by the first communication device to send a sensing signal.

[0111] Accordingly, the second communication device receives the second message.

[0112] In one possible implementation, after the second communication device sends the first message, the second communication device (e.g., a base station) can transmit sensing signals (e.g., CSI-RS) on one or more resource units (e.g., REs) included in the first sensing resource, wherein one sensing signal can be transmitted on one resource unit. For example, the transmission of sensing signals can be in a comb-like manner, for instance, one sensing signal is transmitted for every X subcarriers, where X is a positive integer. Furthermore, the sequences used for sensing signals transmitted on different resource units (e.g., REs) can be different or the same; this application embodiment does not impose any limitations.

[0113] Accordingly, the first communication device (e.g., UE) can receive sensing signals (e.g., CSI-RS) on one or more resource units (e.g., REs) included in the first sensing resource, and can calculate the power value of the sensing signals received on the one or more resource units (e.g., REs). If the first communication device (e.g., UE) is in an idle state, when the power value on the one or more resource units meets a preset condition, the first communication device (e.g., UE) can initiate random access to the second communication device (e.g., base station). Then, the first communication device (e.g., UE) and the second communication device (e.g., base station) perform a random access process, specifically referring to the random access in the prior art, which is not detailed in the embodiments of this application. After completing the random access, the first communication device (e.g., UE) can send a second message to the second communication device (e.g., base station). If the first communication device (e.g., UE) is in a connected state, when the power value on the one or more resource units meets a preset condition, the first communication device (e.g., UE) can send a second message to the second communication device (e.g., base station). The second message can be used to acquire a second sensing resource, which is used by the first communication device to send sensing signals, such as SRS.

[0114] In one possible implementation, the aforementioned preset conditions may include one or more of the following: the received signal power value is higher than a first preset threshold; the received signal power value is higher than the first preset threshold and lower than a second preset threshold; the average received signal power value or the total received signal power value is higher than a third preset threshold; the average received signal power value or the total received signal power value is higher than the third preset threshold and lower than a fourth preset threshold; the maximum power value obtained after preset processing of the received signal is higher than a fifth preset threshold; or, the maximum power value obtained after preset processing of the received signal is higher than the fifth preset threshold and lower than a sixth preset threshold. The preset processing includes filtering and a discrete Fourier transform (DFT), or filtering and an inverse discrete Fourier transform (IDFT). For example, the filtering here may be matched filtering, and more specifically, K-point matched filtering. For example, the first to sixth preset thresholds may be different, partially the same, partially different, or all the same; this application embodiment does not limit this.

[0115] For example, suppose the aforementioned preset condition is that the received signal power value is higher than a first preset threshold. If the received signal power value p of the sensed signal received by the first communication device on a certain resource unit... iIf the power value is higher than the first preset threshold P1, it indicates that a base station is transmitting sensing signals for self-transmission and self-reception sensing, and also indicates that the power value on that resource unit meets the preset conditions. Alternatively, if the received signal power value of the sensing signals received by the first communication device on resource units with a higher percentage than a preset threshold (assuming the first sensing resource includes 10 REs, the preset percentage is 60%, i.e., more than 6 REs) is higher than the first preset threshold P1, it indicates that the power value on multiple resource units meets the preset conditions.

[0116] Similarly, let's assume the aforementioned preset condition is that the received signal power value is higher than a first preset threshold and lower than a second preset threshold. If the received signal power value p of the sensed signal received by the first communication device in a certain resource unit or a resource unit exceeding a preset percentage... i The values ​​are all higher than the first preset threshold P1 and lower than the second preset threshold P2, indicating that there is a base station sending sensing signals for self-sensing and self-receiving, but the sensing performance is poor. It also indicates that the power value on this resource unit meets the preset conditions.

[0117] For example, suppose the above preset conditions are: the average received signal power value or the total received signal power value is higher than a third preset threshold, or the average received signal power value or the total received signal power value is higher than a third preset threshold but lower than a fourth preset threshold. The first communication device can calculate the received signal power value p of the sensed signals received on multiple resource units respectively. i The resource unit here can be a time-domain resource, such as calculating the received signal power value of the sensing signal received on multiple symbols; it can also be a frequency-domain resource, such as calculating the received signal power value of the sensing signal received on multiple subcarriers; or it can be a resource in both the time and frequency domains, such as calculating the received signal power value of the sensing signal received on multiple REs. The embodiments of this application are not limited to this.

[0118] Then the first communication device can calculate these multiple received signal power values ​​p. i average Or the sum I can be the total number of resource units contained in the first sensing resource. When the average received signal power value on I resource units... If the power value is higher than the preset threshold P3, or higher than the preset threshold P3 but lower than the preset threshold P4, it indicates that a base station is transmitting sensing signals for self-sensing (optionally, it can also indicate poor sensing performance), and it also indicates that the power value on these I resource units meets the preset conditions. Alternatively, when the total received signal power value on I resource units... If the value is higher than the preset threshold P3′, or higher than the preset threshold P3′ but lower than the preset threshold P4′, it indicates that a base station is sending sensing signals for self-sensing (optionally, it can also indicate poor sensing performance), and it also indicates that the power value on this resource unit meets the preset conditions.

[0119] For another example, suppose the aforementioned preset condition is: the maximum power value obtained after preset processing of the received signal is higher than the fifth preset threshold, or higher than the fifth preset threshold but lower than the sixth preset threshold. The first communication device can perform K-point matched filtering and DFT / IDFT on the received signals (such as sensing signals CSI-RS) on multiple resource units before taking the maximum power value q. max Here, the resource unit can be a time-domain resource, such as a symbol; it can also be a frequency-domain resource, such as a subcarrier; or it can be a resource in both the time and frequency domains, such as a RE. This embodiment of the application does not limit this. The first communication device obtains the maximum power value q. max The processing procedure can be represented by the following formulas (1-2) to (1-4). q max =max({q k |k∈[1,K]})……………………………………………………………………(1-4)

[0120] Among them, y i This indicates the received signals received on multiple resource units. q k This indicates that a DFT or IDFT is performed on the received signal. q max Indicates q k After K-point matched filtering, the maximum value is taken. The value of i can be 1, 2, 3, ..., I. I can be the total number of resource units contained in the first sensing resource. The maximum power value q obtained after the received signals on these I resource units have undergone preset processing is... max If the value is higher than the fifth preset threshold, or higher than the fifth preset threshold but lower than the sixth preset threshold, it indicates that a base station is sending sensing signals for self-sensing (optionally, it can also indicate poor sensing performance), and it also indicates that the power value on this resource unit meets the preset conditions.

[0121] In one possible implementation, the second message may include a media access control (MAC) control element (CE). The MAC CE includes indication information, which can be 1 bit in length. When the indication information takes a first value, it indicates acquisition / request of a second sensing resource; when the indication information takes a second value, it indicates reservation. For example, the first value is 1 and the second value is 0; however, it can also be the first value is 0 and the second value is 1; this embodiment of the application is not limited to this.

[0122] In one possible implementation, after receiving the second message, the second communication device (such as a base station) can send a third message to the first communication device (such as a UE), which can be used to indicate the second sensing resource. For example, the configuration method of the second sensing resource can refer to the configuration method of SRS in the prior art, which will not be detailed in the embodiments of this application.

[0123] In one possible implementation, after receiving the aforementioned third message, the first communication device (e.g., UE) can transmit a sensing signal on the second sensing resource. For example, the first communication device (e.g., UE) can transmit a sensing signal (e.g., SRS) to a second communication device (e.g., base station) on the second sensing resource. Alternatively, the first communication device (e.g., UE) can transmit a sensing signal to other communication devices (e.g., other UEs) on the second sensing resource. In other words, the second sensing resource can be used for uplink sensing between the first and second communication devices, or for sidelink sensing between the first communication device and other UEs. The embodiments of this application do not limit the use of the second sensing resource.

[0124] In this embodiment, the second communication device sends a first message to indicate a first sensing resource that it can spontaneously receive. After receiving the first sensing resource, the first communication device receives a sensing signal on the first sensing resource and calculates the power value on one or more resource units. When the power value meets a preset condition, if the first communication device is in an idle state, it initiates random access first. After the random access is completed, it sends a second message to the second communication device. If the first communication device is in a connected state, it can directly send a second message to the second communication device. The second message is used to acquire a second sensing resource, which is used by the first communication device to send sensing signals. In this way, regardless of whether the UE is in a connected state or an idle state, this embodiment can enable the sensed target (such as a UE with communication capabilities) to actively trigger uplink sensing, thereby improving sensing accuracy.

[0125] The foregoing details the method provided in this application. To facilitate the implementation of the above-described solutions in the embodiments of this application, corresponding apparatus or devices are also provided in the embodiments of this application.

[0126] This application divides the communication device into functional modules according to the above method embodiments. For example, each function can be divided into its own functional modules, or two or more functions can be integrated into one processing module. The integrated modules can be implemented in hardware or as software functional modules. It should be noted that the module division in this application is illustrative and only represents one logical functional division; other division methods may be used in actual implementation. The communication device of the embodiments of this application will be described in detail below with reference to Figures 7 to 9.

[0127] Referring to Figure 7, which is a schematic diagram of a communication device provided in an embodiment of this application, the communication device includes a processing module 701 and a transceiver module 702. The transceiver module 702 can implement corresponding communication functions, and the processing module 701 is used to implement corresponding processing functions. The transceiver module 702 can also be referred to as an interface, communication interface, or communication module, etc.

[0128] In some embodiments of this application, the communication device can be used to perform the actions performed by the first communication device in the above method embodiments. In this case, the communication device can be the first communication device itself or a chip or functional module that can be configured in the first communication device. The transceiver module 702 is used to perform the transceiver-related operations of the first communication device in the above method embodiments, and the processing module 701 is used to perform the processing-related operations of the first communication device in the above method embodiments.

[0129] The transceiver module 702 is configured to receive a first message, which indicates a first sensing resource, the first sensing resource including one or more resource units; the processing module 701 is configured to determine the power value on the one or more resource units based on the sensing signals received on the one or more resource units included in the first sensing resource; the transceiver module 702 is further configured to send a second message when the power value on the one or more resource units meets a preset condition, the second message being used to acquire a second sensing resource, the second sensing resource being used to send sensing signals.

[0130] Understandably, the transceiver module 702 can receive the first message from other communication devices, or it can input the first message from other components or functional modules within the communication device. The explanations regarding the input of other information by the transceiver module are similar and will not be detailed below.

[0131] Understandably, the transceiver module 702 can send the second message to other communication devices, or the transceiver module 702 can output the second message from the processing module 701 to other components or other functional modules in the communication device. The explanations regarding other information output by the transceiver module are similar and will not be detailed below.

[0132] For example, the first message mentioned above includes the time-domain resource location and the frequency-domain resource location of the first sensing resource.

[0133] For example, the first message mentioned above is an SSB. This first message is used to indicate that the first sensing resource is: the SSB includes the first sensing resource.

[0134] For example, the first sensing resource occupies the first symbol of the SSB in the time domain and one or more RBs in the SSB other than the resource block RB occupied by the primary synchronization signal in the frequency domain; and / or, the first sensing resource occupies at least one of the second to fourth symbols of the SSB in the time domain and one or more RBs in the SSB other than the RBs occupied by the secondary synchronization signal and the physical broadcast channel in the frequency domain.

[0135] For example, the above SSB includes K resource blocks RB, where K is greater than 20.

[0136] For example, the transceiver module 702 is also configured to perform random access when the power value on the one or more resource units meets a preset condition.

[0137] For example, the power values ​​on one or more resource units satisfy preset conditions, including one or more of the following: the received signal power value on one resource unit is higher than a first preset threshold; the received signal power value on one resource unit is higher than a first preset threshold and lower than a second preset threshold; the average received signal power value or total received signal power value on multiple resource units is higher than a third preset threshold; the average received signal power value or total received signal power value on multiple resource units is higher than a third preset threshold and lower than a fourth preset threshold; the maximum power value obtained after filtering and performing Discrete Fourier Transform (DFT) on the received signals on multiple resource units, or after performing filtering and performing Inverse DFT, is higher than a fifth preset threshold; or the maximum power value obtained after filtering and performing DFT on the received signals on multiple resource units, or after performing filtering and performing Inverse DFT, is higher than a fifth preset threshold and lower than a sixth preset threshold.

[0138] For example, the transceiver module 702 is also configured to receive a third message, which is used to indicate the second sensing resource.

[0139] It is understood that the specific descriptions of the transceiver module and processing module shown in the embodiments of this application are merely examples. For the specific functions or execution steps of the transceiver module and processing module, please refer to the above method embodiments (as shown in Figure 4), which will not be detailed here. In addition, the technical effects of the embodiments of this application are the same as those in the foregoing method embodiments, and will not be repeated here for the sake of brevity.

[0140] Reusing Figure 7, in some other embodiments of this application, the communication device can be used to perform the actions performed by the second communication device in the above method embodiments. In this case, the communication device can be the second communication device itself or a chip or functional module that can be configured in the second communication device. The transceiver module 702 is used to perform the transceiver-related operations of the second communication device in the above method embodiments, and the processing module 701 is used to perform the processing-related operations of the second communication device in the above method embodiments.

[0141] The processing module 701 is used to generate a first message and a sensing signal; the transceiver module 702 is used to send the first message, which is used to indicate a first sensing resource, the first sensing resource including one or more resource units; the transceiver module 702 is also used to send a sensing signal on the one or more resource units included in the first sensing resource; the transceiver module 702 is also used to receive a second message, which is used to acquire a second sensing resource, the second sensing resource being used by the first communication device to send a sensing signal.

[0142] For example, the first message mentioned above includes the time-domain resource location and the frequency-domain resource location of the first sensing resource.

[0143] For example, the first message mentioned above is an SSB. This first message is used to indicate that the first sensing resource is: the SSB includes the first sensing resource.

[0144] For example, the first sensing resource occupies the first symbol of the SSB in the time domain and occupies one or more RBs in the SSB in the frequency domain, excluding the resource block RB occupied by the primary synchronization signal; and / or, the first sensing resource occupies at least one of the second to fourth symbols of the SSB in the time domain and occupies one or more RBs in the SSB in the frequency domain, excluding the RBs occupied by the secondary synchronization signal and the physical broadcast channel.

[0145] For example, the above SSB includes K resource blocks RB, where K is greater than 20.

[0146] For example, the transceiver module 702 is also used for random access.

[0147] For example, the transceiver module 702 is also configured to send a third message, which is used to indicate the second sensing resource.

[0148] It is understood that the specific descriptions of the transceiver module and processing module shown in the embodiments of this application are merely examples. For the specific functions or execution steps of the transceiver module and processing module, please refer to the above method embodiments (as shown in Figure 4), which will not be detailed here. In addition, the technical effects of the embodiments of this application are the same as those in the foregoing method embodiments, and will not be repeated here for the sake of brevity.

[0149] The communication device according to the embodiments of this application has been described above. The possible product forms of the communication device are described below. Any product possessing the functions of the communication device described in FIG. 7 above falls within the protection scope of the embodiments of this application. The following description is merely illustrative and does not limit the product form of the communication device according to the embodiments of this application to this extent.

[0150] In one possible implementation, in the communication device shown in FIG7, the processing module 701 can be one or more processors, and the transceiver module 702 can be a transceiver, or the transceiver module 702 can also be a sending module and a receiving module. The sending module can be a transmitter, and the receiving module can be a receiver. The sending module and the receiving module are integrated into one device, such as a transceiver. In the embodiments of this application, the processor and the transceiver can be coupled, etc., and the connection method of the processor and the transceiver is not limited in the embodiments of this application. In the process of executing the above method, the process of sending information (such as sending a first message or a second message) in the above method can be the process of the processor outputting the above information. When outputting the above information, the processor outputs the above information to the transceiver so that the transceiver can transmit it. After the above information is output by the processor, it may need to undergo other processing before reaching the transceiver. Similarly, the process of receiving information (such as receiving a first message or a second message) in the above method can be the process of the processor receiving the input above information. When the processor receives the input information, the transceiver receives the above information and inputs it into the processor. Furthermore, after the transceiver receives the aforementioned information, the information may need to undergo further processing before being input into the processor.

[0151] Referring to Figure 8, which is a schematic diagram of another structure of the communication device provided in an embodiment of this application, the communication device can be a first communication device or a second communication device, or a chip therein. Figure 8 only shows the main components of the communication device. In addition to the processor 801, the communication device may further include a transceiver 802, a memory 803, and input / output devices (not shown in the figure).

[0152] The processor 801 is mainly used to process communication protocols and communication data, control the entire communication device, execute software programs, and process the data of the software programs. The memory 803 is mainly used to store software programs and data. In one design, the transceiver 802 can be called a transceiver unit, transceiver, or transceiver circuit, etc., and is used to implement the transmission and reception functions. The transceiver 802 may include a receiver and a transmitter. The receiver can be called a receiver or receiving circuit, etc., and is used to implement the receiving function; the transmitter can be called a transmitter or transmitting circuit, etc., and is used to implement the transmitting function. In another design, the transceiver 802 may include a control circuit and an antenna. The control circuit is mainly used for the conversion between baseband signals and radio frequency signals and the processing of radio frequency signals. The antenna is mainly used for transmitting and receiving radio frequency signals in the form of electromagnetic waves. Input / output devices, such as touch screens, displays, and keyboards, are mainly used to receive user input data and output data to the user.

[0153] When the communication device is powered on, the processor 801 can read the software program in the memory 803, interpret and execute the instructions of the software program, process the data of the software program, and control the medium access control (MAC) layer and physical layer (PHY) to implement the method of this application embodiment. When data needs to be transmitted wirelessly, the processor 801 performs baseband processing on the data to be transmitted and outputs the baseband signal to the radio frequency (RF) circuit. The RF circuit performs RF processing on the baseband signal and transmits the RF signal outward in the form of electromagnetic waves through the antenna. When data is sent to the communication device, the RF circuit receives the RF signal through the antenna, converts the RF signal into a baseband signal, and outputs the baseband signal to the processor 801. The processor 801 converts the baseband signal into data and processes the data.

[0154] In another implementation, the radio frequency circuitry and antenna can be set up independently of the processor performing baseband processing. For example, in a distributed scenario, the radio frequency circuitry and antenna can be arranged remotely, independent of the communication device.

[0155] The processor 801, transceiver 802, and memory 803 can be connected via a communication bus.

[0156] For example, when the communication device is used to perform the steps, methods, or functions performed by the first communication device in the method embodiment shown in FIG4, the processor 801 may be used to perform step S102 in FIG4, and / or to perform other processes of the technology described herein; the transceiver 802 may be used to perform step S103 in FIG4, and / or to perform other processes of the technology described herein.

[0157] For example, when the communication device is used to perform the steps, methods, or functions performed by the second communication device in the method embodiment shown in FIG4 above, the processor 801 may be used to generate a first message and / or to perform other processes of the technology described herein; the transceiver 802 may be used to perform step S101 in FIG4 and / or to perform other processes of the technology described herein.

[0158] In any of the above designs, the processor 801 may store instructions, which may be computer programs. These computer programs, running on the processor 801, cause the communication device to perform the methods described in the above method embodiments. The computer program may be embedded in the processor 801; in this case, the processor 801 may be implemented in hardware.

[0159] In one implementation, the communication device may include circuitry capable of performing the functions of transmitting, receiving, or communicating as described in the foregoing method embodiments. The processor and transceiver described in this application can be implemented on integrated circuits (ICs), analog ICs, radio frequency integrated circuits (RFICs), mixed-signal ICs, application-specific integrated circuits (ASICs), printed circuit boards (PCBs), electronic devices, etc. The processor and transceiver can also be manufactured using various IC process technologies, such as complementary metal oxide semiconductors (CMOS), n-metal-oxide-semiconductor (NMOS), positive channel metal oxide semiconductors (PMOS), bipolar junction transistors (BJTs), bipolar CMOS (BiCMOS), silicon germanium (SiGe), gallium arsenide (GaAs), etc.

[0160] It is understood that the communication device shown in the embodiments of this application may have more components than those in Figure 8, and the embodiments of this application do not limit this. The methods executed by the processor and transceiver shown above are merely examples, and the specific steps executed by the processor and transceiver can be referred to the description of the method embodiments above. The dashed lines in Figure 8 indicate optional parts.

[0161] In another possible implementation, in the communication device shown in Figure 7, the processing module 701 can be one or more processors, and the transceiver module 702 can be an input / output interface, or a communication interface, or an interface circuit, or an interface, etc. Alternatively, the transceiver module 702 can also be a transmitting module and a receiving module. The transmitting module can be an output interface, and the receiving module can be an input interface. The transmitting module and the receiving module are integrated into one module, such as an input / output interface.

[0162] Referring to Figure 9, which is another structural schematic diagram of the communication device provided in an embodiment of this application, the communication device shown in Figure 9 includes a processor 901 and an interface 902. That is, the processing module 701 can be implemented using the processor 901, and the transceiver module 702 can be implemented using the interface 902. The processor 901 can be a chip, processing circuit, integrated circuit, or system-on-chip (SoC) chip, etc., and the interface 902 can be a communication interface, input / output interface, pins, etc. For example, Figure 9 illustrates the communication device as a chip, which includes a processor 901 and an interface 902.

[0163] In this embodiment, the logic circuit and the interface can also be coupled to each other. The specific connection method between the logic circuit and the interface is not limited in this embodiment.

[0164] For example, processor 901 can be used to execute the functions or steps implemented by processing module 701 as shown in FIG. 7, and interface 902 can be used to execute the functions or steps implemented by transceiver module 702 as shown in FIG. 7. For a detailed description of processor 901 and interface 902, please refer to FIG. 7 or the method embodiments shown above, which will not be described in detail here.

[0165] The communication device shown in the embodiments of this application can implement the method provided in the embodiments of this application in hardware form, or it can implement the method provided in the embodiments of this application in software form, etc., and the embodiments of this application do not limit it in this way.

[0166] This application also provides a communication system. The communication system includes at least the first communication device and the second communication device described above. The first communication device and the second communication device work together to implement the communication method described in the preceding embodiments.

[0167] This application also provides a computer program for implementing the operations and / or processes performed by various communication devices in the methods provided in this application.

[0168] This application also provides a computer-readable storage medium storing computer code that, when executed on a computer, causes the computer to perform the operations and / or processes performed by various communication devices in the methods provided in this application.

[0169] This application also provides a computer program product, which includes computer code or a computer program that, when run on a computer, causes the operations and / or processes performed by various communication devices in the method provided in this application to be executed.

[0170] This application also provides a chip system including a processor for supporting devices mounted on the chip system in implementing the method steps performed by the first or second communication device in the above embodiments, such as generating or processing data and / or information involved in the above methods. In one possible design, the chip system further includes a memory for storing program instructions and data necessary for the data transmission device. The chip system may be composed of chips or may include chips and other discrete devices.

[0171] In the embodiments provided in this application, it should be understood that the disclosed systems, communication devices, and methods can be implemented in other ways. For example, the communication device embodiments described above are merely illustrative. For instance, the division of modules is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple modules or components may be combined or integrated into another system, or some features may be ignored or not executed. In addition, the mutual coupling or direct coupling or communication connection shown or discussed may be indirect coupling or communication connection through some interfaces, communication devices, or modules, or it may be an electrical, mechanical, or other form of connection.

[0172] The modules described as separate components may or may not be physically separate. The components shown as modules may or may not be physical modules; that is, they may be located in one place or distributed across multiple network modules. Some or all of the modules can be selected according to actual needs to achieve the technical effects of the solutions provided in the embodiments of this application.

[0173] Furthermore, the functional modules in the various embodiments of this application can be integrated into one processing module, or each module can exist physically separately, or two or more modules can be integrated into one module. The integrated modules described above can be implemented in hardware or as software functional modules.

[0174] If the integrated module is implemented as a software functional module and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or all or part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a readable storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned readable storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0175] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A communication method, characterized in that, Applied to a first communication device, the method includes: Receive a first message, the first message being used to indicate a first sensing resource, the first sensing resource including one or more resource units; Based on the sensing signals received on one or more resource units included in the first sensing resource, the power value on the one or more resource units is determined; When the power value on one or more resource units meets a preset condition, a second message is sent. The second message is used to acquire a second sensing resource, and the second sensing resource is used to send a sensing signal.

2. The method according to claim 1, characterized in that, The first message includes the temporal resource location and the frequency domain resource location of the first sensing resource.

3. The method according to claim 1, characterized in that, The first message is a synchronization signal block (SSB); The first message is used to indicate that the first sensing resource is: the SSB includes the first sensing resource.

4. The method according to claim 3, characterized in that, The first sensing resource occupies the first symbol of the SSB in the time domain and occupies one or more RBs in the SSB in the frequency domain, excluding the resource block RB occupied by the main synchronization signal. And / or, the first sensing resource occupies at least one of the second to fourth symbols of the SBB in the time domain, and occupies one or more RBs in the SBB in the frequency domain, excluding the RBs occupied by the secondary synchronization signal and the physical broadcast channel.

5. The method according to claim 4, characterized in that, The SSB includes K RBs, where K is greater than 20.

6. The method according to any one of claims 3 to 5, characterized in that, Before sending the second message, the method further includes: When the power value on one or more resource units meets the preset conditions, random access is performed.

7. The method according to any one of claims 1 to 6, characterized in that, The power values ​​on one or more resource units meet preset conditions, including one or more of the following: The received signal power value on a resource unit is higher than a first preset threshold; The received signal power value on a resource unit is higher than a first preset threshold and lower than a second preset threshold; The average or total received signal power value across multiple resource units exceeds a third preset threshold. The average received signal power value or the total received signal power value on multiple resource units is higher than the third preset threshold and lower than the fourth preset threshold; The maximum power value obtained after filtering and discrete Fourier transforming the received signals on multiple resource units, or after filtering and inverse discrete Fourier transforming, is higher than the fifth preset threshold. or, The maximum power value obtained after filtering and discrete Fourier transforming the received signals on multiple resource units, or after filtering and inverse discrete Fourier transforming, is higher than the fifth preset threshold and lower than the sixth preset threshold.

8. The method according to any one of claims 1 to 7, characterized in that, After sending the second message, the method further includes: A third message is received, which is used to instruct the second sensing resource.

9. A communication method, characterized in that, Applied to a second communication device, the method further includes: Send a first message, the first message being used to indicate a first sensing resource, the first sensing resource including one or more resource units; Send sensing signals on one or more resource units included in the first sensing resource; A second message is received, the second message being used to acquire a second sensing resource, the second sensing resource being used by the first communication device to send a sensing signal.

10. The method according to claim 9, characterized in that, The first message includes the temporal resource location and the frequency domain resource location of the first sensing resource.

11. The method according to claim 9, characterized in that, The first message is a synchronization signal block (SSB); The first message is used to indicate that the first sensing resource is: the SSB includes the first sensing resource.

12. The method according to claim 11, characterized in that, The first sensing resource occupies the first symbol of the SSB in the time domain and occupies one or more RBs in the SSB in the frequency domain, excluding the resource block RB occupied by the main synchronization signal. And / or, the first sensing resource occupies at least one of the second to fourth symbols of the SSB in the time domain, and occupies one or more RBs in the SSB in the frequency domain, excluding the RBs occupied by the secondary synchronization signal and the physical broadcast channel.

13. The method according to claim 12, characterized in that, The SSB includes K RBs, where K is greater than 20.

14. The method according to any one of claims 11 to 13, characterized in that, Before receiving the second message, the method further includes: Perform random access.

15. The method according to any one of claims 9 to 14, characterized in that, After receiving the second message, the method further includes: A third message is sent, which is used to instruct the second sensing resource.

16. A communication device, characterized in that, It includes a module for performing the method as described in any one of claims 1 to 8, or includes a module for performing the method as described in any one of claims 9 to 15.

17. A communication device, characterized in that, include: One or more processors, said one or more processors being coupled to one or more memories; Wherein, the one or more memories are used to store a computer program, and the one or more processors are used to execute the computer program stored in the one or more memories, so that the communication device performs the method as described in any one of claims 1 to 8, or performs the method as described in any one of claims 9 to 15.

18. A chip, characterized in that, Including the processor; The processor is configured to execute instructions to cause a device on which the chip is mounted to perform the method as described in any one of claims 1 to 8, or to perform the method as described in any one of claims 9 to 15.

19. A readable storage medium, characterized in that, The device is used to store a program, which is executed by one or more processors, such that a device including the one or more processors performs the method as claimed in any one of claims 1 to 8, or performs the method as claimed in any one of claims 9 to 15.

20. A computer program product, characterized in that, When the computer program product is executed, the method as described in any one of claims 1 to 8 is executed, or the method as described in any one of claims 9 to 15 is executed.

21. A communication system, characterized in that, It includes means for performing the method as described in any one of claims 1 to 8 and means for performing the method as described in any one of claims 9 to 15.

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