Sensing method and communication apparatus

Abstract

A sensing method and a communication apparatus, which relate to the technical field of communications. The method comprises: transmitting a sensing signal between a first bandwidth part and an access network device; and transmitting a communication signal between a second bandwidth part and the access network device, wherein the transmission bandwidth of the first bandwidth part is greater than that of the second bandwidth part. The greater the transmission bandwidth for the sensing signal, the higher the sensing accuracy. Thus, the method is conducive to improving the sensing accuracy.

Description

A sensing method and communication device

[0001] This application claims priority to Chinese Patent Application No. 202411638764.3, filed on November 15, 2024, entitled "A Sensing Method and Communication Device", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a sensing method and a communication device. Background Technology

[0003] Integrated sensing and communication (ISAC) refers to the integration of communication and sensing functions, enabling wireless networks to not only transmit data but also perceive the surrounding environment. This technology can capture and measure the distance, speed, and attributes of target objects, providing comprehensive, low-cost, and high-precision sensing, thus achieving environmental awareness while providing communication services. For example, 5.5G / 6G networks can not only be used for communication but also, like radar, for environmental sensing, capturing and measuring the distance, speed, and attributes of target objects. Improving sensing accuracy is a pressing technical challenge in ISAC systems. Summary of the Invention

[0004] This application provides a sensing method and a communication device, which are beneficial for improving sensing accuracy.

[0005] In a first aspect, embodiments of this application provide a sensing method. For example, this method can be applied to a terminal. For instance, it can be implemented by a terminal or a communication / processing module within the terminal, or by a circuit or chip responsible for communication functions within the terminal. The method includes: transmitting a sensing signal between a first bandwidth portion and an access network device; transmitting a communication signal between a second bandwidth portion and the access network device; wherein the transmission bandwidth of the first bandwidth portion is greater than the transmission bandwidth of the second bandwidth portion. A larger transmission bandwidth of the sensing signal results in higher sensing accuracy. Therefore, the method described in the first aspect is beneficial for improving sensing accuracy.

[0006] In one possible embodiment, a first bandwidth portion is located on a first carrier, and a second bandwidth portion is located on a second carrier; the first and second carriers are different. That is, the carrier for transmitting sensing signals is a different carrier than the carrier for transmitting communication signals. This allows the carrier used for transmitting communication signals to utilize existing bandwidth configurations, reducing the need for modifications to the bandwidth configuration of existing carriers.

[0007] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the maximum transmission bandwidth corresponding to the first carrier is greater than the maximum transmission bandwidth corresponding to the second carrier. By making the maximum transmission bandwidth corresponding to the first carrier greater than the maximum transmission bandwidth corresponding to the second carrier, more transmission bandwidth can be allocated to the sensing signal. The larger the transmission bandwidth of the sensing signal, the higher the sensing accuracy. Therefore, based on this possible embodiment, it is beneficial to improve the sensing accuracy.

[0008] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth corresponding to the first carrier is less than the minimum protection bandwidth corresponding to the second carrier. By making the minimum protection bandwidth corresponding to the first carrier less than the minimum protection bandwidth corresponding to the second carrier, more transmission bandwidth can be allocated to the sensing signal. The larger the transmission bandwidth of the sensing signal, the higher the sensing accuracy. Therefore, based on this possible embodiment, it is beneficial to improve the sensing accuracy.

[0009] In one possible embodiment, the minimum guard bandwidth corresponding to the first carrier satisfies the following formula: N GB =BW channel *1000(kHz)-N RB *SCS*12

[0010] Where, N GB BW is the minimum guard bandwidth corresponding to the first carrier. channel N is the channel bandwidth of the first carrier. RB The maximum transmission bandwidth corresponding to the first carrier includes the number of resource blocks (RBs), and SCS is the subcarrier spacing corresponding to the first carrier. Based on this possible embodiment, the minimum protection bandwidth corresponding to the first carrier can be reasonably configured.

[0011] In one possible embodiment, a first indication information and / or a second indication information are sent to the access network device; the first indication information indicates a supported first downlink bandwidth; the second indication information indicates a supported first uplink bandwidth; the first downlink bandwidth is the channel bandwidth of the downlink carrier used for transmitting sensing signals; the first uplink bandwidth is the channel bandwidth of the uplink carrier used for transmitting sensing signals. That is, in this possible embodiment, the terminal can report its capability information for the uplink and / or downlink carriers used for transmitting sensing signals to the access network device. By reporting the terminal's capability information for the uplink and / or downlink carriers to the access network device, it is beneficial for the access network device to accurately configure the parameters of the uplink and / or downlink carriers for the terminal subsequently.

[0012] In one possible embodiment, the first bandwidth portion and the second bandwidth portion are located on the same carrier. That is, the carrier for transmitting the sensing signal and the carrier for transmitting the communication signal are the same carrier. This allows for more flexible transmission of the sensing signal.

[0013] In one possible embodiment, the maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion. By making the maximum transmission bandwidth corresponding to the first bandwidth portion of the carrier greater than the maximum transmission bandwidth corresponding to the second bandwidth portion of the carrier, more transmission bandwidth can be allocated to the sensing signal. The larger the transmission bandwidth of the sensing signal, the higher the sensing accuracy. Therefore, based on this possible embodiment, it is beneficial to improve sensing accuracy.

[0014] In one possible embodiment, a third indication information and / or a fourth indication information are sent to the access network device. The third indication information indicates one or more of the following: a second downlink bandwidth of the supported downlink carrier, a configuration of the guard bandwidth within the supported downlink carrier, a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals. The fourth indication information indicates one or more of the following: a second uplink bandwidth of the supported uplink carrier, a configuration of the guard bandwidth within the supported uplink carrier, a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals. The downlink carrier is used to transmit sensing signals and communication signals, and the uplink carrier is used to transmit sensing signals and communication signals. That is, in this possible embodiment, the terminal can report its capability information for the uplink carrier and / or downlink carrier used for transmitting communication signals and sensing signals to the access network device. By reporting the terminal's capability information for the uplink and / or downlink carrier to the access network equipment, the access network equipment can accurately configure the parameters of the uplink and / or downlink carrier for the terminal in the future.

[0015] Secondly, embodiments of this application provide a sensing method. For example, this method can be applied to the network side, and can be implemented by an access network device on the network side, a module (e.g., a circuit, chip, or chip system) within the access network device, or a logic node, logic module, or software capable of implementing all or part of the functions of the access network device. The method includes: transmitting a sensing signal between a first bandwidth portion and a terminal; and transmitting a communication signal between a second bandwidth portion and the terminal; wherein the transmission bandwidth of the first bandwidth portion is greater than the transmission bandwidth of the second bandwidth portion.

[0016] In one possible embodiment, a first bandwidth portion is located on a first carrier, and a second bandwidth portion is located on a second carrier, wherein the first carrier and the second carrier are different.

[0017] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the maximum transmission bandwidth corresponding to the first carrier is greater than the maximum transmission bandwidth corresponding to the second carrier.

[0018] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth corresponding to the first carrier is less than the minimum protection bandwidth corresponding to the second carrier.

[0019] In one possible embodiment, the minimum guard bandwidth corresponding to the first carrier satisfies the following formula: N GB =BW channel *1000(kHz)-N RB *SCS*12

[0020] Where, N GB BW is the minimum guard bandwidth corresponding to the first carrier. channel N is the channel bandwidth of the first carrier. RB The maximum transmission bandwidth corresponding to the first carrier includes the number of resource blocks (RBs), and SCS is the subcarrier spacing corresponding to the first carrier.

[0021] In one possible embodiment, the receiving terminal sends first indication information and / or second indication information; the first indication information is used to indicate a supported first downlink bandwidth; the second indication information is used to indicate a supported first uplink bandwidth; the first downlink bandwidth is the channel bandwidth of the downlink carrier used to transmit the sensing signal; the first uplink bandwidth is the channel bandwidth of the uplink carrier used to transmit the sensing signal.

[0022] In one possible embodiment, the first bandwidth portion and the second bandwidth portion are located on the same carrier.

[0023] In one possible embodiment, the maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion.

[0024] In one possible embodiment, the receiving terminal sends third indication information and / or fourth indication information; the third indication information is used to indicate one or more of the following: the second downlink bandwidth of the supported downlink carrier, the configuration of the guard bandwidth within the supported downlink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals; the fourth indication information indicates one or more of the following: the second uplink bandwidth of the supported uplink carrier, the configuration of the guard bandwidth within the supported uplink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals.

[0025] The downlink carrier is used to transmit sensing signals and communication signals, while the uplink carrier is used to transmit sensing signals and communication signals.

[0026] The beneficial effects in the second aspect can be found in the beneficial effects in the first aspect, and will not be repeated here.

[0027] Thirdly, this application provides a communication device that has the function of implementing any one of the first to second aspects. For example, the communication device includes a module, unit, or means corresponding to the operation involved in performing any one of the first to second aspects. The module, unit, or means can be implemented by software, hardware, or a combination of software and hardware.

[0028] Fourthly, this application provides a communication device including an interface circuit and one or more processors. The one or more processors can execute a computer program or instructions, which, when executed, cause the communication device to implement the methods in any possible design or implementation of any of the first to second aspects described above. The interface circuit is used to implement communication functions within the communication device and / or communication functions between the communication device and other devices or components.

[0029] In one possible embodiment, the processor is used to communicate with other devices or components through the interface circuit.

[0030] In one possible embodiment, the communication device may further include the memory. The one or more processors are coupled to the memory. The memory is used to store part or all of the computer programs or instructions necessary for implementing the functions involved in any of the first to second aspects described above.

[0031] The aforementioned communication device may be a terminal, or a communication / processing module within a terminal, or a chip within a terminal responsible for communication functions. Alternatively, the aforementioned communication device may be an access network device, or a module (e.g., a circuit, chip, or chip system) within an access network device, or a logical node, logical module, or software capable of implementing all or part of the functions of the access network device.

[0032] Fifthly, this application provides a communication system including a terminal and an access network device. The terminal can perform the method described in the first aspect above, and the access network device can perform the method described in the second aspect above.

[0033] Sixthly, this application provides a computer-readable storage medium storing computer-readable instructions, which, when read and executed by a computer, cause the computer to perform the method in any possible embodiment of any of the first to second aspects described above.

[0034] In a seventh aspect, this application provides a computer program product that, when read and executed by a computer, causes the computer to perform the method in any possible embodiment of any of the first to second aspects described above. Attached Figure Description

[0035] Figure 1 is a schematic diagram of the architecture of a communication system 10 provided in an embodiment of this application;

[0036] Figure 2 is a schematic diagram of a sensing mode provided in an embodiment of this application;

[0037] Figure 3 is a schematic diagram of a sensing mode provided in an embodiment of this application;

[0038] Figure 4 is a schematic diagram of a sensing mode provided in an embodiment of this application;

[0039] Figure 5 is a schematic diagram of a sensing mode provided in an embodiment of this application;

[0040] Figure 6 is a schematic diagram of a sensing mode provided in an embodiment of this application;

[0041] Figure 7 is a schematic diagram of a sensing mode provided in an embodiment of this application;

[0042] Figure 8 is a schematic diagram of a channel bandwidth provided in an embodiment of this application;

[0043] Figure 9 is a flowchart illustrating a sensing method provided in an embodiment of this application;

[0044] Figure 10 is a schematic diagram of a maximum transmission bandwidth configuration provided in an embodiment of this application;

[0045] Figure 11 is a schematic diagram of a maximum transmission bandwidth configuration provided in an embodiment of this application;

[0046] Figure 12 is a schematic diagram of the structure of a possible communication device provided in an embodiment of this application;

[0047] Figure 13 is a schematic diagram of the structure of a possible communication device provided in an embodiment of this application. Detailed Implementation

[0048] To better understand the embodiments of this application, the system architecture involved in the embodiments of this application will be described first below:

[0049] Figure 1 is a schematic diagram of the architecture of a communication system 10 provided in an embodiment of this application. As shown in Figure 1, the communication system 10 includes a radio access network (RAN) 100, wherein the RAN 100 includes at least one RAN node (110a and 110b in Figure 1, collectively referred to as 110), and may also include at least one terminal (120a-120j in Figure 1, collectively referred to as 120). The RAN 100 may also include other RAN nodes, such as wireless relay devices and / or wireless backhaul devices (not shown in Figure 1). The terminal 120 is wirelessly connected to the RAN node 110. Terminals and RAN nodes can be interconnected via wired or wireless means. The communication system 10 may also include a core network 200. The RAN node 110 is connected to the core network 200 via wireless or wired means. The core network equipment in the core network 200 and the RAN node 110 in the RAN 100 may be independent and different physical devices, or they may be the same physical device integrating the logical functions of the core network equipment and the logical functions of the RAN node. The communication system 10 may also include a data network (DN) 300.

[0050] RAN100 can be an evolved universal terrestrial radio access (E-UTRA) system, a new radio (NR) system, a 6th generation (6G) radio access system, or a future radio access system as defined in the 3rd generation partnership project (3GPP). RAN100 can also include two or more of the above-mentioned different radio access systems. RAN100 can also be an open RAN (O-RAN). RAN can also be referred to as an access network (AN).

[0051] RAN nodes, also known as radio access network devices, RAN entities, access nodes, or network devices, are used to help terminals access communication systems wirelessly. In one application scenario, an RAN node can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next-generation NodeB (gNB) in a 5G mobile communication system, a next-generation base station in a 6G mobile communication system, or a base station in a future mobile communication system. RAN nodes can be macro base stations (as shown in Figure 1, 110a), micro base stations or indoor stations (as shown in Figure 1, 110b), relay nodes, or donor nodes.

[0052] In another application scenario, multiple RAN nodes can collaborate to help terminals achieve wireless access, with different RAN nodes implementing different functions of the base station. For example, a RAN node can be a central unit (CU), a distributed unit (DU), or a radio unit (RU). Here, the CU performs the functions of the base station's Radio Resource Control (RRC) and Packet Data Convergence Protocol (PDCP), and can also perform the functions of the Service Data Adaptation Protocol (SDAP). The DU performs the functions of the base station's Radio Link Control (RANC) and Medium Access Control (MAC) layers, and can also perform some or all of the physical layer functions. For specific descriptions of these protocol layers, refer to the relevant 3GPP technical specifications. The RU can be used to implement radio frequency signal transmission and reception. The CU and DU can be two independent RAN nodes or integrated into the same RAN node, such as within a baseband unit (BBU). The RU can be included in radio frequency equipment, such as in a remote radio unit (RRU) or an active antenna unit (AAU). The CU can be further divided into two types of RAN nodes: CU-control plane and CU-user plane.

[0053] In different systems, RAN nodes may have different names. For example, in an O-RAN system, a CU can be called an open CU (O-CU), a DU can be called an open DU (O-DU), and an RU can be called an open RU (O-RU). The RAN nodes in the embodiments of this application can be implemented through software modules, hardware modules, or a combination of software and hardware modules. For example, a RAN node can be a server loaded with the corresponding software modules. The embodiments of this application do not limit the specific technology or device form used in the RAN nodes. For ease of description, a base station is used as an example of a RAN node in the following description.

[0054] A terminal is a device with wireless transceiver capabilities, capable of sending signals to or receiving signals from a base station. Terminals can also be called terminal equipment, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grids, smart furniture, smart offices, smart wearables, smart transportation, smart cities, etc. Terminals can be mobile phones, tablets, computers with wireless transceiver capabilities, wearable devices, vehicles, airplanes, ships, robots, robotic arms, smart home devices, etc. The embodiments of this application do not limit the specific technology or device form used in the terminal.

[0055] Base stations and terminals can be fixed or mobile. They can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on water; and they can be deployed on aircraft, balloons, and satellites. The embodiments of this application do not limit the application scenarios of the base stations and terminals.

[0056] The roles of base stations and terminals can be relative. For example, the helicopter or drone 120i in Figure 1 can be configured as a mobile base station. For terminals 120j that access the wireless access network 100 through 120i, terminal 120i is a base station; however, for base station 110a, 120i is a terminal, meaning that 110a and 120i communicate via a wireless air interface protocol. Of course, 110a and 120i can also communicate via a base station-to-base station interface protocol. In this case, relative to 110a, 120i is also a base station. Therefore, both base stations and terminals can be collectively referred to as communication devices. 110a and 110b in Figure 1 can be called communication devices with base station functions, and 120a-120j in Figure 1 can be called communication devices with terminal functions.

[0057] Communication between base stations and terminals, between base stations, and between terminals can be conducted using licensed spectrum, unlicensed spectrum, or both simultaneously. Communication can be conducted using spectrum below 6 GHz, spectrum above 6 GHz, or both simultaneously. The embodiments of this application do not limit the spectrum resources used for wireless communication.

[0058] In the embodiments of this application, the functions of the base station can be executed by modules (such as chips) within the base station, or by a control subsystem that includes base station functions. This control subsystem, including base station functions, can be a control center in the aforementioned application scenarios such as smart grids, industrial control, intelligent transportation, and smart cities. Similarly, the functions of the terminal can be executed by modules (such as chips or modems) within the terminal, or by a device that includes terminal functions.

[0059] In this application, the base station sends downlink signals or downlink information to the terminal, with the downlink information carried on the downlink channel; the terminal sends uplink signals or uplink information to the base station, with the uplink information carried on the uplink channel. To communicate with the base station, the terminal needs to establish a radio connection on a cell controlled by the base station. The cell with which the terminal has established a radio connection is called the terminal's serving cell. When the terminal communicates with this serving cell, it is also susceptible to interference from signals from neighboring cells.

[0060] In the embodiments of this application, the time-domain symbol can be an orthogonal frequency division multiplexing (OFDM) symbol or a discrete Fourier transform-spread-OFDM (DFT-s-OFDM) symbol. Unless otherwise specified, the symbols in the embodiments of this application refer to time-domain symbols.

[0061] It is understood that in the embodiments of this application, PDSCH and PDCCH are just examples of downlink data channel and downlink control channel, respectively. In different systems and different scenarios, data channel and control channel may have different names, and the embodiments of this application do not limit this.

[0062] The following explanations of some terms used in the embodiments of this application are provided to facilitate understanding by those skilled in the art. These explanations are for illustrative purposes only and should not be construed as a disclosure or specific limitation of the technical solution of this application.

[0063] I. Perception Mode

[0064] Communication sensing technology refers to the technology of using the communication capabilities of devices to send sensing signals and perform sensing based on the echo signals received from these signals. For access network devices and terminals with sensing capabilities, there are six sensing modes depending on the transmission and reception of sensing signals:

[0065] In sensing mode one, the access network device automatically transmits and receives sensing signals for sensing. For example, as shown in Figure 2, access network device 1 can sense areas or objects by automatically transmitting and receiving sensing signals.

[0066] In sensing mode two, access network devices cooperate in sensing. In this application, cooperative sensing by access network devices refers to one access network device sending a sensing signal and another receiving the sensing signal. For example, as shown in Figure 3, access network device 1 sends a sensing signal, which, after being affected by a region or object (such as reflection or scattering), is received by access network device 2.

[0067] In sensing mode 3, the access network device sends a sensing signal, and the terminal receives the sensing signal. For example, as shown in Figure 4, access network device 1 sends a sensing signal, which is received by terminal 1 after being affected by the area or object (such as reflection, scattering, etc.).

[0068] In sensing mode four, the terminal sends a sensing signal, and the access network device receives the sensing signal. For example, as shown in Figure 5, terminal 1 sends a sensing signal, which is received by access network device 1 after being affected by the area or object (such as reflection, scattering, etc.).

[0069] In sensing mode five, the terminal automatically transmits and receives sensing signals for sensing. For example, as shown in Figure 6, terminal 1 can sense areas or objects by automatically transmitting and receiving sensing signals.

[0070] In sensing mode six, terminals cooperate in sensing, meaning one terminal sends a sensing signal and another terminal receives it. For example, as shown in Figure 7, terminal 1 sends a sensing signal, which is then received by terminal 2 after being affected by a region or object (such as reflection or scattering).

[0071] II. ISAC

[0072] ISAC refers to the integration of communication and sensing capabilities, enabling wireless networks to not only transmit data but also perceive their surroundings. This technology can capture and measure the distance, speed, and attributes of target objects, providing comprehensive, low-cost, and high-precision sensing, thus achieving environmental awareness while providing communication services. For example, 5.5G / 6G networks can not only be used for communication but also, like radar, to sense the environment, capturing and measuring the distance, speed, and attributes of target objects.

[0073] III. Bandwidth Part (BWP)

[0074] A Block-Based Resource (BWP) is defined as a combination of multiple contiguous resource blocks (RBs) within a single carrier. The concept of BWP was introduced primarily to allow terminals to better utilize large carrier bandwidths. For a large carrier bandwidth, such as 100MHz, the bandwidth required by a terminal is often limited. If the terminal were to perform real-time full-bandwidth detection and maintenance, energy consumption would pose a significant challenge. The introduction of the BWP concept allocates a portion of the bandwidth within the entire large carrier for terminal access and data transmission. The terminal only needs to perform corresponding operations within the bandwidth configured by the system.

[0075] IV. Channel Bandwidth

[0076] In a wireless network, the channel bandwidth occupied by each terminal is the bandwidth that the terminal supports for a single carrier in the uplink or downlink.

[0077] From the perspective of access network equipment: it can support different terminal channel bandwidths within the same spectrum for sending and receiving data to and from terminals connected to the access network equipment; it can also support sending multiple carriers to the same terminal or to different terminals within the channel bandwidth of the access network equipment via carrier aggregation (CA).

[0078] From the terminal's perspective: The terminal can be configured with one or more BWPs / carriers, each with its own channel bandwidth.

[0079] The following describes the channel bandwidth, guard bandwidth, and maximum transmission bandwidth configurations for the carrier used by the terminal to transmit communication signals:

[0080] In wireless communication, guard bandwidth refers to the narrow, unused frequency band reserved at the upper and lower limits of a given channel. Its purpose is to ensure sufficient isolation between channels, prevent interference from adjacent channels, and thus guarantee stable signal transmission.

[0081] Maximum transmission bandwidth configuration, also known as transmission bandwidth configuration or maximum transmission bandwidth, refers to the maximum number of resource blocks (RBs) that can be configured for the channel bandwidth when the carrier's channel bandwidth and SCS are determined. For example, Figure 8 is a schematic diagram of the bandwidth configuration for a carrier used to transmit communication signals. The channel bandwidth, guard bandwidth, and maximum transmission bandwidth configuration for the carrier used to transmit communication signals are shown in Figure 8. The transmission bandwidth in Figure 8 represents the actual transmission bandwidth used by the terminal to transmit communication signals; for example, it can be one or more BWPs.

[0082] For example, the maximum transmission bandwidth configuration for the carrier used by the terminal to transmit communication signals in the current standard is shown in Table 1 below. For example, when the carrier channel bandwidth is 3MHz and the subcarrier spacing (SCS) is 15kHz, the maximum transmission bandwidth of the carrier is 15 RBs. When the carrier channel bandwidth is 5MHz and the SCS is 15kHz, the maximum transmission bandwidth of the carrier is 25 RBs. The maximum transmission bandwidth under other channel bandwidths and subcarrier spacings follows the same logic, and will not be elaborated here. N / A in Table 1 indicates unavailable, that is, there is no corresponding maximum transmission bandwidth.

[0083] Table 1

[0084] For example, the minimum protection bandwidth configuration for the carrier used by the terminal to transmit communication signals in the current standard is shown in Table 2 below. For instance, when the carrier's channel bandwidth is 3MHz and the SCS is 15kHz, the minimum protection bandwidth of the carrier is 142.5kHz. When the carrier's channel bandwidth is 5MHz and the SCS is 15kHz, the minimum protection bandwidth of the carrier is 242.5kHz. The minimum protection bandwidth for other channel bandwidths and subcarrier spacings follows the same principle and will not be elaborated here. N / A in Table 2 indicates unavailable, that is, there is no corresponding minimum protection bandwidth.

[0085] Table 2

[0086] V. CA

[0087] CA (Carrier Aggregation) provides greater bandwidth to a single terminal by aggregating multiple component carriers (CCs). This allows the terminal to enjoy a bandwidth equal to the total bandwidth of all CCs, significantly improving the peak rate. Based on whether the CCs belong to the same frequency band and are continuous in the frequency domain, CA can be categorized as follows: Intra-band contiguous CA: CCs belong to the same frequency band and are continuous in the frequency domain. Intra-band non-contiguous CA: CCs belong to the same frequency band but are not continuous in the frequency domain. Inter-band CA: CCs belong to different frequency bands; in this case, the CCs are usually not continuous in the frequency domain.

[0088] To improve sensing accuracy, embodiments of this application provide a sensing method and a communication device.

[0089] The sensing method and communication device will be further described below with reference to the accompanying drawings. It is understood that this application uses a terminal and access network equipment as examples to illustrate the execution of the interaction, but this application does not limit the execution subject of the interaction. For example, the method executed by the terminal in this application can also be implemented by a communication / processing module in the terminal, a circuit or chip responsible for communication / processing functions in the terminal, or a logic node, logic module, or software that can implement all or part of the terminal's functions. Similarly, the method executed by the access network equipment in this application can also be implemented by a module (e.g., a circuit, chip, or chip system) in the access network equipment, or a logic node, logic module, or software that can implement all or part of the access network equipment's functions.

[0090] Please refer to Figure 9, which is a flowchart illustrating a sensing method provided in an embodiment of this application, wherein:

[0091] 901. The terminal transmits sensing signals between the first bandwidth portion and the access network equipment.

[0092] 902. The terminal transmits communication signals between itself and the access network equipment in the second bandwidth section. The transmission bandwidth of the first bandwidth section is greater than that of the second bandwidth section.

[0093] In this embodiment, the transmission of sensing signals between the terminal and the access network device can be either uplink or downlink. The transmission of communication signals between the terminal and the access network device can also be either uplink or downlink.

[0094] For example, the transmission of sensing signals and communication signals between the terminal and the access network equipment can take several possible forms:

[0095] 1) The transmission of sensing signals and communication signals between the terminal and the access network equipment are both uplink transmissions. For example, the terminal can send sensing signals and communication signals to the access network equipment. Correspondingly, the access network equipment can receive the sensing signals and communication signals sent by the terminal.

[0096] 2) The transmission of sensing signals and communication signals between the terminal and the access network equipment are both downlink transmissions. For example, the access network equipment can send sensing signals and communication signals to the terminal. Correspondingly, the terminal can receive the sensing signals and communication signals sent by the access network equipment. Figure 9 illustrates an example where the transmission of sensing signals and communication signals between the terminal and the access network equipment are both downlink transmissions.

[0097] 3) The transmission of sensing signals between the terminal and the access network device is uplink transmission, while the transmission of communication signals between the terminal and the access network device is downlink transmission. For example, the terminal can send sensing signals to the access network device. Correspondingly, the access network device can receive the sensing signals sent by the terminal. The access network device can also send communication signals to the terminal. Correspondingly, the terminal can receive the communication signals sent by the access network device.

[0098] 4) The transmission of sensing signals between the terminal and the access network device is downlink transmission, while the transmission of communication signals between the terminal and the access network device is uplink transmission. For example, the access network device can send sensing signals to the terminal. Correspondingly, the terminal can receive the sensing signals sent by the access network device. The terminal can also send communication signals to the access network device. Correspondingly, the access network device can receive the communication signals sent by the terminal.

[0099] Optionally, step 901 can also be replaced by the transmission of sensing signals between the terminal and itself or other terminals.

[0100] Optionally, step 901 can also be replaced by the transmission of sensing signals between the access network device and itself or other access network devices.

[0101] In one possible implementation, the carrier wave containing the sensing signal and the communication signal can be implemented in the following two ways:

[0102] 1) The first bandwidth portion is located on the first carrier, and the second bandwidth portion is located on the second carrier. The first carrier and the second carrier are different.

[0103] Optionally, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the transmission bandwidth of the first bandwidth portion is greater than the transmission bandwidth of the second bandwidth portion. That is, the carrier for transmitting the sensing signal is a different carrier from the carrier for transmitting the communication signal. This allows the carrier used for transmitting the communication signal to utilize the existing bandwidth configuration, which helps reduce modifications to the bandwidth configuration of existing carriers.

[0104] For example, as shown in Figure 10, carriers 1 and 2 are aggregated. Communication signals and sensing signals are transmitted between the terminal and the access network equipment via carrier aggregation. Communication signals are transmitted through BWP1 in carrier 1, and sensing signals are transmitted through BWP2 in carrier 2. The transmission bandwidth of BWP2 is greater than that of BWP1. Figure 10 uses two carriers for aggregation as an example; however, aggregation with more carriers is possible, and this application does not limit the scope of the embodiments.

[0105] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the maximum transmission bandwidth corresponding to the first carrier is greater than the maximum transmission bandwidth corresponding to the second carrier. By making the maximum transmission bandwidth corresponding to the first carrier greater than the maximum transmission bandwidth corresponding to the second carrier, more transmission bandwidth can be allocated to the sensing signal. The larger the transmission bandwidth of the sensing signal, the higher the sensing accuracy. Therefore, based on this possible embodiment, it is beneficial to improve the sensing accuracy.

[0106] For example, the maximum transmission bandwidth configuration of the second carrier can be shown in Table 1. The maximum transmission bandwidth configuration of the first carrier can be shown in Table 3. As shown in Table 3, when the channel bandwidth of the first carrier is 3MHz and the SCS is 15kHz, the maximum transmission bandwidth of the first carrier is 16 RBs; when the channel bandwidth of the first carrier is 5MHz and the SCS is 15kHz, the maximum transmission bandwidth of the first carrier is 27 RBs. The maximum transmission bandwidth of the first carrier under other channel bandwidths and subcarrier spacings follows the same logic, and will not be elaborated here. N / A in Table 3 indicates unavailable, that is, there is no corresponding maximum transmission bandwidth. Table 3 is just one example of the maximum transmission bandwidth corresponding to the first carrier. Any combination of channel bandwidth and SCS in Table 3 can also correspond to other maximum transmission bandwidths, and this application embodiment does not limit this.

[0107] Table 3

[0108] In one possible embodiment, the minimum guard bandwidth corresponding to the first carrier satisfies the following formula: N GB =BW channel *1000(kHz)-N RB *SCS*12

[0109] Where, N GB BW is the minimum guard bandwidth corresponding to the first carrier. channel N is the channel bandwidth of the first carrier. RB N represents the number of resource blocks (RBs) included in the maximum transmission bandwidth corresponding to the first carrier, and SCS represents the subcarrier spacing corresponding to the first carrier. The unit of SCS is kHz. GB The unit is kHz.

[0110] Based on this possible implementation, the minimum protection bandwidth corresponding to the first carrier can be reasonably configured.

[0111] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth corresponding to the first carrier is less than the minimum protection bandwidth corresponding to the second carrier. By making the minimum protection bandwidth corresponding to the first carrier less than the minimum protection bandwidth corresponding to the second carrier, more transmission bandwidth can be allocated to the sensing signal. The larger the transmission bandwidth of the sensing signal, the higher the sensing accuracy. Therefore, based on this possible embodiment, it is beneficial to improve the sensing accuracy.

[0112] For example, the minimum protection bandwidth configuration for the second carrier can be shown in Table 2. The minimum protection bandwidth configuration for the first carrier can be shown in Table 4. As shown in Table 4, when the channel bandwidth of the first carrier is 3MHz and the SCS is 15kHz, the minimum protection bandwidth of the first carrier is 120kHz; when the channel bandwidth of the first carrier is 5MHz and the SCS is 15kHz, the minimum protection bandwidth of the first carrier is 140kHz. The minimum protection bandwidth of the first carrier under other channel bandwidths and subcarrier spacings follows the same principle, and will not be elaborated here. N / A in Table 4 indicates unavailable, that is, there is no corresponding minimum protection bandwidth. It can be seen that in Table 4, the minimum protection bandwidth of the first carrier under any channel bandwidth and subcarrier spacing is between 0 and SCS*12. The minimum protection bandwidth range of the first carrier decreases downwards by a fixed arithmetic progression as the channel bandwidth increases, modulo SCS*12. When the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth of the first carrier is less than the minimum protection bandwidth of the second carrier. Table 4 is merely one example of the minimum protection bandwidth corresponding to the first carrier. Any combination of channel bandwidth and SCS in Table 4 can also correspond to other minimum protection bandwidths, and this application does not limit this.

[0113] Table 4

[0114] In one possible embodiment, the terminal sends first indication information and / or second indication information to the access network device; the first indication information indicates a first downlink bandwidth supported by the terminal; the second indication information indicates a first uplink bandwidth supported by the terminal; the first downlink bandwidth is the channel bandwidth of the downlink carrier used for transmitting sensing signals; the first uplink bandwidth is the channel bandwidth of the uplink carrier used for transmitting sensing signals. Accordingly, the access network device can receive the first indication information and / or second indication information sent by the terminal. That is, in this possible embodiment, the terminal can report its capability information for the uplink and / or downlink carriers used for transmitting sensing signals to the access network device. By reporting the terminal's capability information for the uplink and / or downlink carriers to the access network device, it is beneficial for the access network device to accurately configure the parameters of the uplink and / or downlink carriers for the terminal subsequently.

[0115] Optionally, the first indication information may also indicate one or more of the following: the subcarrier spacing of the supported downlink carrier, the maximum number of multiple input multiple output (MIMO) layers supported by the downlink physical shared channel (PDSCH) of the downlink carrier, and the modulation order of the supported downlink carrier.

[0116] For example, the first indication information can be featureSetsDownlinkPerCC, or other information names; this application embodiment does not limit this.

[0117] Wherein, supportedSubcarrierSpacingDL is the subcarrier spacing of the downlink carrier supported by the terminal. supportedBandwidthDL is the first downlink bandwidth supported by the terminal. maxNumberMIMO-LayersPDSCH is the maximum number of MIMO layers supported by the PDSCH of the downlink carrier. supportedModulationOrderDL is the modulation order of the downlink carrier supported by the terminal.

[0118] Optionally, the second indication information may also indicate one or more of the following: the subcarrier spacing of the uplink carrier supported by the terminal, the maximum number of MIMO layers supported by the codebook-based physical uplink shared channel (PUSCH) of the uplink carrier, the maximum number of SRS resources per sounding reference signal (SRS) resource set of the uplink carrier, and the modulation order of the uplink carrier supported by the terminal.

[0119] For example, the second indication information can be featureSetsUplinkPerCC, or other information names; this application embodiment does not limit this.

[0120] Wherein, supportedSubcarrierSpacingUL is the subcarrier spacing of the uplink carrier supported by the terminal. supportedBandwidthUL fr1 is the first supported uplink bandwidth. maxNumberMIMO-LayersCB-PUSCH is the maximum number of MIMO layers supported by the codebook-based PUSCH of this uplink carrier. maxNumberSRS-ResourcePerSet is the maximum number of SRS resources per SRS resource set of this uplink carrier. supportedModulationOrderUL is the modulation order of the uplink carrier supported by the terminal.

[0121] For example, suppose the uplink bandwidth of uplink carrier 1 supported by the terminal for transmitting communication signals is 100MHz, and the subcarrier spacing of the supported uplink carrier 1 is 30kHz. The uplink bandwidth of uplink carrier 2 supported by the terminal for transmitting sensing signals is 100MHz, and the subcarrier spacing of the supported uplink carrier 2 is 30kHz.

[0122] Access network equipment can allocate more transmission bandwidth to the BWP of the sensing signal, which helps to increase the effective bandwidth utilization of the sensing signal and thus improve the sensing accuracy. As shown in Table 5, the FFT size of uplink carrier 1 is 4096, and the FFT size of uplink carrier 2 is 4096. That is, the channel bandwidth occupied by the communication signal is 100MHz, and the channel bandwidth occupied by the sensing signal is 100MHz. Assuming that the access network equipment configures the transmission bandwidth of the BWP of the communication signal on uplink carrier 1 to the terminal as 273 RB, and configures the transmission bandwidth of the BWP of the sensing signal on uplink carrier 2 to the terminal as 277 RB, then the guard bandwidth corresponding to uplink carrier 1 is 845kHz, and the effective bandwidth utilization of the communication signal is 98.3%. The guard bandwidth corresponding to uplink carrier 2 is 280kHz, and the effective bandwidth utilization of the sensing signal is 99.72%. The effective bandwidth utilization of the communication signal is BWP transmission bandwidth * SCS * 12 / (channel bandwidth occupied by the communication signal * 1000 (kHz)). The calculation principle of the effective bandwidth utilization of the sensing signal is the same and will not be repeated here. It is evident that the effective bandwidth utilization of the sensing signal is higher, which is beneficial for improving sensing accuracy.

[0123] Table 5

[0124] For example, suppose the uplink bandwidth of uplink carrier 1 supported by the terminal for transmitting communication signals is 100MHz, and the subcarrier spacing of the supported uplink carrier 1 is 60kHz. The uplink bandwidth of uplink carrier 2 supported by the terminal for transmitting sensing signals is 100MHz, and the subcarrier spacing of the supported uplink carrier 2 is 60kHz.

[0125] Access network equipment can allocate more transmission bandwidth to the BWP of the sensing signal, which helps to increase the effective bandwidth utilization of the sensing signal and thus improve sensing accuracy. As shown in Table 6, the FFT size of uplink carrier 1 is 2048, and the FFT size of uplink carrier 2 is 2048. That is, the channel bandwidth occupied by the communication signal is 100MHz, and the channel bandwidth occupied by the sensing signal is 100MHz. Assuming that the access network equipment configures the transmission bandwidth of the BWP of the communication signal on uplink carrier 1 to the terminal as 135 RBs, and configures the transmission bandwidth of the BWP of the sensing signal on uplink carrier 2 to the terminal as 138 RBs, then the guard bandwidth corresponding to uplink carrier 1 is 1370kHz, and the effective bandwidth utilization of the communication signal is 97.2%. The guard bandwidth corresponding to uplink carrier 2 is 640kHz, and the effective bandwidth utilization of the sensing signal is 99.4%. It can be seen that the higher effective bandwidth utilization of the sensing signal is beneficial to improving sensing accuracy.

[0126] Table 6

[0127] 2) The first bandwidth portion and the second bandwidth portion are transmitted through the same carrier.

[0128] In other words, the carrier wave used to transmit sensing signals is the same as the carrier wave used to transmit communication signals. This allows for more flexible transmission of sensing signals.

[0129] For example, as shown in Figure 11, the terminal and the access network device transmit communication signals and sensing signals via carrier 1. The communication signal is transmitted through BWP1 in carrier 1, and the sensing signal is transmitted through BWP2 in carrier 1. Figure 11 uses carrier 1 with two BWPs as an example, but carrier 1 can also have more BWPs; this embodiment of the application does not limit this.

[0130] Optionally, if the channel bandwidth corresponding to the first bandwidth portion and the channel bandwidth corresponding to the second bandwidth portion are the same, the maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion.

[0131] In one possible embodiment, the maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion. By making the maximum transmission bandwidth corresponding to the first bandwidth portion of the carrier greater than the maximum transmission bandwidth corresponding to the second bandwidth portion of the carrier, more transmission bandwidth can be allocated to the sensing signal. The larger the transmission bandwidth of the sensing signal, the higher the sensing accuracy. Therefore, based on this possible embodiment, it is beneficial to improve sensing accuracy.

[0132] For example, the maximum transmission bandwidth corresponding to BWP2 in Figure 11 is greater than the maximum transmission bandwidth corresponding to BWP1. The maximum transmission bandwidth corresponding to the first bandwidth portion refers to the maximum number of RBs that can be configured in the first bandwidth portion when the carrier's channel bandwidth and SCS are determined. The maximum transmission bandwidth corresponding to the second bandwidth portion refers to the maximum number of RBs that can be configured in the second bandwidth portion when the carrier's channel bandwidth and SCS are determined.

[0133] Optionally, if the channel bandwidth corresponding to the first bandwidth portion and the channel bandwidth corresponding to the second bandwidth portion are the same, the maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion.

[0134] For example, the maximum transmission bandwidth configuration corresponding to the first and second bandwidth portions of the carrier can be shown in Table 7 below. Table 7 takes an example where the channel bandwidth corresponding to both the first and second bandwidth portions is 20MHz. The channel bandwidth corresponding to the first and second bandwidth portions can also be other values, and the maximum transmission bandwidth configuration corresponding to the first and second bandwidth portions of the carrier can be changed accordingly. There can be one or more second bandwidth portions. As shown in Table 7, when the channel bandwidth of the carrier is 40MHz and the SCS is 15kHz, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion of the carrier and the guard bandwidth between adjacent bandwidth portions is 105-3-108. Here, 105-3-108 indicates that the maximum transmission bandwidth corresponding to the second bandwidth portion used for transmitting communication signals is 105 RBs, the maximum transmission bandwidth corresponding to the first bandwidth portion used for transmitting sensing signals is 108 RBs, and the guard bandwidth between the second bandwidth portion and the first bandwidth portion is 3 RBs. The sum of the guard bandwidth between the second bandwidth portion and the first bandwidth portion, the maximum transmission bandwidth corresponding to the second bandwidth portion, and the maximum transmission bandwidth corresponding to the first bandwidth portion is 216 RBs. Alternatively, when the channel bandwidth of the carrier is 40MHz and the SCS is 15kHz, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion of the carrier and the protection bandwidth between adjacent bandwidth portions can also be 108-3-105, that is, the first bandwidth portion is in front of the second bandwidth portion. This application embodiment does not limit this.

[0135] The configuration of the maximum transmission bandwidth corresponding to the bandwidth portion of the carrier and the guard bandwidth between adjacent bandwidth portions follows the same principle under other channel bandwidths and subcarrier spacing. For example, when the SCS is 30kHz, the maximum transmission bandwidth corresponding to the second bandwidth portion used for transmitting communication signals is 50 or 49 RBs, the maximum transmission bandwidth corresponding to the first bandwidth portion used for transmitting sensing signals is 53 RBs, the guard bandwidth between adjacent second bandwidth portions is 6 RBs, and the guard bandwidth between the second bandwidth portion and the first bandwidth portion is 3 RBs. As another example, when the SCS is 60kHz, the maximum transmission bandwidth corresponding to the second bandwidth portion used for transmitting communication signals is 23 RBs, the maximum transmission bandwidth corresponding to the first bandwidth portion used for transmitting sensing signals is 25 RBs, the guard bandwidth between adjacent second bandwidth portions is 5 RBs, and the guard bandwidth between the second bandwidth portion and the first bandwidth portion is 3 RBs. N / A in Table 7 indicates unavailable, i.e., no corresponding maximum transmission bandwidth. Table 7 is merely an example of the configuration of the maximum transmission bandwidth in the carrier and the guard bandwidth between adjacent bandwidth portions. Any combination of channel bandwidth and SCS in Table 7 can also correspond to other maximum transmission bandwidth configurations and protection bandwidth configurations between adjacent bandwidth portions; this application embodiment does not limit this.

[0136] Table 7

[0137] In one possible embodiment, the minimum guard bandwidth of the channel bandwidth occupied by the sensing signal in the carrier used for transmitting communication signals and sensing signals satisfies the following formula: N GB ′=BW channel ′*1000(kHz)-N RB ′*SCS′*12

[0138] Where, N GB ′ represents the minimum guard bandwidth of the channel bandwidth occupied by the sensing signal in the carrier wave used to transmit communication signals and sensing signals; BW channel ′ represents the channel bandwidth occupied by the sensing signal in the carrier wave used to transmit communication and sensing signals; N RB SCS' represents the number of resource blocks (RBs) included in the maximum transmission bandwidth corresponding to the channel bandwidth occupied by the sensing signal in the carrier used for transmitting communication and sensing signals; SCS' represents the subcarrier spacing of the carrier used for transmitting communication and sensing signals. The unit of SCS' is kHz. GB The unit of ′ is kHz.

[0139] In one possible embodiment, the terminal sends third indication information and / or fourth indication information to the access network device. The third indication information indicates one or more of the following: a second downlink bandwidth of the supported downlink carrier, a configuration of the guard bandwidth within the supported downlink carrier, a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals. The fourth indication information indicates one or more of the following: a second uplink bandwidth of the supported uplink carrier, a configuration of the guard bandwidth within the supported uplink carrier, a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and a maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals. The downlink carrier is used for transmitting sensing signals and communication signals, and the uplink carrier is used for transmitting sensing signals and communication signals. In other words, in this possible embodiment, the terminal can report its capability information for the uplink and / or downlink carriers used for transmitting communication signals and sensing signals to the access network device. By reporting the terminal's capability information for the uplink and / or downlink carrier to the access network equipment, the access network equipment can accurately configure the parameters of the uplink and / or downlink carrier for the terminal in the future.

[0140] For example, the configuration of the protection bandwidth within the downlink carrier supported by the terminal, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion of the downlink carrier supported by the terminal for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion of the downlink carrier supported by the terminal for transmitting communication signals can be shown in Table 7.

[0141] Optionally, the third indication information may also indicate one or more of the following: the subcarrier spacing of the supported downlink carrier, the number of MIMO layers supported by the PDSCH of the downlink carrier, and the modulation order of the supported downlink carrier.

[0142] For example, the third instruction information can be featureSetsDownlinkPerCC, or other information names; this application embodiment does not limit this.

[0143] Wherein, supportedSubcarrierSpacingDL is the subcarrier spacing of the downlink carrier supported by the terminal. supportedBandwidthDL is the second downlink bandwidth supported by the terminal. maxNumberMIMO-LayersPDSCH is the maximum number of MIMO layers supported by the PDSCH of this downlink carrier. intraSensingCellGuardBandsDL-List indicates the configuration of the guard bandwidth within the supported downlink carrier, the maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and the maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals. supportedModulationOrderDL is the modulation order of the downlink carrier supported by the terminal.

[0144] Optionally, the fourth indication information may also indicate one or more of the following: the subcarrier spacing of the uplink carrier supported by the terminal, the maximum number of MIMO layers supported by the codebook-based PUSCH of the uplink carrier, the maximum number of SRS resources per SRS resource set of the uplink carrier, and the modulation order of the uplink carrier supported by the terminal.

[0145] For example, the fourth instruction information can be featureSetsUplinkPerCC, or other information names; this application embodiment does not limit this.

[0146] Wherein, `supportedSubcarrierSpacingUL` represents the subcarrier spacing of the uplink carrier supported by the terminal. `supportedBandwidthUL fr1` represents the first supported uplink bandwidth. `intraSensingCellGuardBandsUL-List` indicates the configuration of the guard bandwidth within the supported uplink carrier, the maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and the maximum transmission bandwidth configuration corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals. `maxNumberMIMO-LayersCB-PUSCH` represents the maximum number of MIMO layers supported by the codebook-based PUSCH of the uplink carrier. `maxNumberSRS-ResourcePerSet` represents the maximum number of SRS resources per SRS resource set of the uplink carrier. `supportedModulationOrderUL` represents the modulation order of the uplink carrier supported by the terminal.

[0147] For example, suppose the uplink bandwidth of the uplink carrier supported by the terminal for transmitting communication and sensing signals is 100MHz, and the subcarrier spacing of this uplink carrier is 30kHz. The access network device can allocate more transmission bandwidth to the BWP of the sensing signal, which helps to increase the effective bandwidth utilization of the sensing signal and thus improve the sensing accuracy. As shown in Table 8 below, the total FFT size of this uplink carrier is 4096. Among them, the FFT size corresponding to the communication signal is 2048, and the FFT size corresponding to the sensing signal is 2048. That is, the channel bandwidth occupied by the communication signal is 50MHz, and the channel bandwidth occupied by the sensing signal is 50MHz. Assume that the access network device configures the transmission bandwidth of the BWP of the communication signal for the terminal to be 133RB, and the transmission bandwidth of the BWP of the sensing signal for the terminal to be 138RB. Then, the guard bandwidth in the channel bandwidth occupied by the communication signal is 1045kHz, and the effective bandwidth utilization of the communication signal is 95.8%. The guard bandwidth in the channel bandwidth occupied by the sensing signal is 320kHz, and the effective bandwidth utilization of the sensing signal is 99.36%. It is evident that the effective bandwidth utilization of the sensing signal is higher, which is beneficial for improving sensing accuracy.

[0148] Table 8

[0149] For example, suppose the uplink bandwidth of the uplink carrier supported by the terminal for transmitting communication and sensing signals is 100MHz, and the subcarrier spacing of this uplink carrier is 60kHz. The access network equipment can allocate more transmission bandwidth to the BWP of the sensing signal, which helps to increase the effective bandwidth utilization of the sensing signal and thus improve the sensing accuracy. As shown in Table 9 below, the total FFT size of this uplink carrier is 2048. Among them, the FFT size corresponding to the communication signal is 1648, and the FFT size corresponding to the sensing signal is 400. That is, the channel bandwidth occupied by the communication signal is 80MHz, and the channel bandwidth occupied by the sensing signal is 20MHz. The transmission bandwidth configuration of the BWP of the communication signal is 23-5-23-5-23-5-23-5 RB, that is, the channel bandwidth of each BWP is 20MHz, the transmission bandwidth of each BWP is 23 RB, and the guard bandwidth between two adjacent BWPs is 5 RB. Assume that the transmission bandwidth of the BWP of the sensing signal is 25 RB. Therefore, the guard bandwidth occupied by the communication signal is 1330kHz, and the effective bandwidth utilization rate of the communication signal is 82.8%. The guard bandwidth occupied by the sensing signal is 560kHz, and the effective bandwidth utilization rate of the sensing signal is 90%. It can be seen that the effective bandwidth utilization rate of the sensing signal is higher, which is beneficial to improving sensing accuracy.

[0150] Table 9

[0151] In one possible embodiment, the access network device may further send a fifth indication information and / or a sixth indication information to the terminal. The fifth indication information is used to indicate the perception common configuration and / or perception private configuration for the uplink BWP; the sixth indication information is used to indicate the perception common configuration and / or perception private configuration for the downlink BWP. Optionally, the fifth indication information and / or the sixth indication information may be carried in RRC signaling.

[0152] For example, the fifth instruction information can be BWP-Uplink information or other information names; this application embodiment does not limit this.

[0153] BWP-Uplink::=SEQUENCE{

[0154] bwp-ldBWP-ld,

[0155] bwp-CommonBWP-UplinkCommonOPTIONAL,--Cond SetupOtherBWP

[0156] bwp-DedicatedBWP-UplinkDedicatedOPTIONAL,--Cond SetupOtherBWP

[0157] …

[0158] }

[0159] BWP-Uplinkcommon::=SEQUENCE{

[0160] pusch-ConfigCommonSetupRelease{PUSCH-ConfigCommon}OPTIONAL,--Need M

[0161] pucch-ConfigCommonSetupRelease{PUCCH-ConfigCommon}OPTIONAL,--Need M

[0162] Sensing-ConfigCommonSetupRelease{Sensing-ConfigCommon}OPTIONAL,--Need M

[0163] …

[0164] }

[0165] BWP-UplinkDedicated::=SEQUENCE{

[0166] pucch-ConfigSetupRelease{PUCCH-Config}OPTIONAL,--Need M

[0167] push-ConfigSetupRelease{PUSCH-Config}OPTIONAL,--Need M

[0168] Sensing-ConfigSetupRelease{Sensing-Config}OPTIONAL,--Need M

[0169] …

[0170] }

[0171] Among them, Sensing-ConfigCommon is the common sensing configuration for uplink BWP, and Sensing-Config is the sensing-specific configuration for uplink BWP.

[0172] For example, the fifth instruction information can be BWP-Downlink information or other information names; this application embodiment does not limit this.

[0173] BWP-Downlink::=SEQUENCE{

[0174] bwp-ldBWP-ld,

[0175] bwp-CommonBWP-DownlinkCommonOPTIONAL,--Cond SetupOtherBWP

[0176] bwp-DedicatedBWP-DownlinkDedicatedOPTIONAL,--Cond SetupOtherBWP

[0177] …

[0178] }

[0179] BWP-Downlinkcommon::=SEQUENCE{

[0180] pdsch-ConfigCommonSetupRelease{PDSCH-ConfigCommon}OPTIONAL,--Need M

[0181] pdcch-ConfigCommonSetupRelease{PDCCH-ConfigCommon}OPTIONAL,--Need M

[0182] Sensing-ConfigCommonSetupRelease{Sensing-ConfigCommon}OPTIONAL,--Need M

[0183] …

[0184] }

[0185] BWP-DownlinkDedicated::=SEQUENCE{

[0186] pdcch-ConfigSetupRelease{PDSCH-Config}OPTIONAL,--Need M

[0187] pdsch-ConfigSetupRelease{PDSCH-Config}OPTIONAL,--Need M

[0188] Sensing-ConfigSetupRelease{Sensing-Config}OPTIONAL,--Need M

[0189] …

[0190] }

[0191] Among them, Sensing-ConfigCommon is the common perception configuration for downlink BWP, and Sensing-Config is the dedicated perception configuration for downlink BWP.

[0192] As can be seen, based on the method described in Figure 9, the actual transmission bandwidth used for transmitting the sensing signal is greater than the actual transmission bandwidth used for transmitting the communication signal. The larger the transmission bandwidth of the sensing signal, the higher the sensing accuracy. Therefore, the method described in Figure 9 is beneficial for improving sensing accuracy.

[0193] It is understood that, in order to achieve the functions in the above embodiments, the access network device and terminal include hardware structures and / or software modules corresponding to perform each function. Those skilled in the art should readily recognize that, based on the units and method steps of the various examples described in conjunction with the embodiments disclosed in this application, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application scenario and design constraints of the technical solution.

[0194] Figure 12 is a schematic diagram of the possible communication devices provided in the embodiments of this application. These communication devices can be used to implement the functions of the terminal or access network device in the above method embodiments, and thus can also achieve the beneficial effects of the above method embodiments. In the embodiments of this application, the communication device can be one of the terminals 120a-120j shown in Figure 1, or it can be the access network device 110a or 110b shown in Figure 1, or it can be a module (such as a chip) applied to the terminal or access network device.

[0195] As shown in Figure 12, the communication device 1200 includes a processing unit 1210 and a transceiver unit 1220. The communication device 1200 is used to implement the functions of a terminal or access network device in the method embodiment shown in Figure 9. The processing unit 1210 is used for data processing. The transceiver unit 1220 is used for data transmission and reception.

[0196] When the communication device 1200 is used to implement the functions of the terminal in the method embodiment shown in FIG9:

[0197] The sensing signal is transmitted between the first bandwidth portion and the access network equipment;

[0198] Communication signals are transmitted between the second bandwidth portion and the access network equipment; wherein the transmission bandwidth of the first bandwidth portion is greater than the transmission bandwidth of the second bandwidth portion.

[0199] In one possible embodiment, a first bandwidth portion is located on a first carrier, and a second bandwidth portion is located on a second carrier, wherein the first carrier and the second carrier are different.

[0200] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the maximum transmission bandwidth corresponding to the first carrier is greater than the maximum transmission bandwidth corresponding to the second carrier.

[0201] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth corresponding to the first carrier is less than the minimum protection bandwidth corresponding to the second carrier.

[0202] In one possible embodiment, the minimum guard bandwidth corresponding to the first carrier satisfies the following formula: N GB =BW channel *1000(kHz)-N RB *SCS*12

[0203] Where, N GB BW is the minimum guard bandwidth corresponding to the first carrier. channelN is the channel bandwidth of the first carrier. RB The maximum transmission bandwidth corresponding to the first carrier includes the number of resource blocks (RBs), and SCS is the subcarrier spacing corresponding to the first carrier.

[0204] In one possible embodiment, the transceiver unit 1220 is further configured to send first indication information and / or second indication information to the access network device; the first indication information is used to indicate a supported first downlink bandwidth; the second indication information is used to indicate a supported first uplink bandwidth; the first downlink bandwidth is the channel bandwidth of the downlink carrier used for transmitting sensing signals; the first uplink bandwidth is the channel bandwidth of the uplink carrier used for transmitting sensing signals.

[0205] In one possible embodiment, the first bandwidth portion and the second bandwidth portion are located on the same carrier.

[0206] In one possible embodiment, the maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion.

[0207] In one possible embodiment, the transceiver unit 1220 is further configured to send third indication information and / or fourth indication information to the access network device; the third indication information is configured to indicate one or more of the following: the second downlink bandwidth of the supported downlink carrier, the configuration of the guard bandwidth within the supported downlink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals; the fourth indication information indicates one or more of the following: the second uplink bandwidth of the supported uplink carrier, the configuration of the guard bandwidth within the supported uplink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals.

[0208] The downlink carrier is used to transmit sensing signals and communication signals, while the uplink carrier is used to transmit sensing signals and communication signals.

[0209] When the communication device 1200 is used to implement the function of the access network device in the method embodiment shown in FIG9:

[0210] The transmission of sensing signals is performed between the first bandwidth portion and the terminal;

[0211] Communication signals are transmitted between the second bandwidth portion and the terminal; wherein the transmission bandwidth of the first bandwidth portion is greater than the transmission bandwidth of the second bandwidth portion.

[0212] In one possible embodiment, a first bandwidth portion is located on a first carrier, and a second bandwidth portion is located on a second carrier, wherein the first carrier and the second carrier are different.

[0213] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the maximum transmission bandwidth corresponding to the first carrier is greater than the maximum transmission bandwidth corresponding to the second carrier.

[0214] In one possible embodiment, when the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth corresponding to the first carrier is less than the minimum protection bandwidth corresponding to the second carrier.

[0215] In one possible embodiment, the minimum guard bandwidth corresponding to the first carrier satisfies the following formula: N GB =BW channel *1000(kHz)-N RB *SCS*12

[0216] Where, N GB BW is the minimum guard bandwidth corresponding to the first carrier. channel N is the channel bandwidth of the first carrier. RB The maximum transmission bandwidth corresponding to the first carrier includes the number of resource blocks (RBs), and SCS is the subcarrier spacing corresponding to the first carrier.

[0217] In one possible embodiment, the transceiver unit 1220 is further configured to receive first indication information and / or second indication information sent by the terminal; the first indication information is used to indicate a supported first downlink bandwidth; the second indication information is used to indicate a supported first uplink bandwidth; the first downlink bandwidth is the channel bandwidth of the downlink carrier used for transmitting sensing signals; the first uplink bandwidth is the channel bandwidth of the uplink carrier used for transmitting sensing signals.

[0218] In one possible embodiment, the first bandwidth portion and the second bandwidth portion are located on the same carrier.

[0219] In one possible embodiment, the maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion.

[0220] In one possible embodiment, the transceiver unit 1220 is further configured to receive third indication information and / or fourth indication information sent by the terminal; the third indication information is configured to indicate one or more of the following: the second downlink bandwidth of the supported downlink carrier, the configuration of the guard bandwidth within the supported downlink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals; the fourth indication information indicates one or more of the following: the second uplink bandwidth of the supported uplink carrier, the configuration of the guard bandwidth within the supported uplink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals.

[0221] The downlink carrier is used to transmit sensing signals and communication signals, while the uplink carrier is used to transmit sensing signals and communication signals.

[0222] As shown in Figure 13, the communication device 1300 includes a processor 1310 and an interface circuit 1320. The processor 1310 and the interface circuit 1320 are coupled to each other. It is understood that the interface circuit 1320 can be a transceiver or an input / output interface. Optionally, the communication device 1300 may also include a memory 1330 for storing instructions executed by the processor 1310, or storing input data required by the processor 1310 to execute instructions, or storing data generated after the processor 1310 executes instructions.

[0223] When the communication device 1300 is used to implement the method shown in FIG9, the processor 1310 is used to implement the function of the processing unit 1210, and the interface circuit 1320 is used to implement the function of the transceiver unit 1220.

[0224] When the aforementioned communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from other modules (such as radio frequency modules or antennas) in the terminal, which is sent to the terminal by the access network device; or, the terminal chip sends information to other modules (such as radio frequency modules or antennas) in the terminal, which is sent to the access network device by the terminal.

[0225] When the aforementioned communication device is a module applied to an access network device, the access network device module implements the functions of the access network device in the above method embodiments. The access network device module receives information from other modules (such as radio frequency modules or antennas) in the access network device, which is information sent by the terminal to the access network device; or, the access network device module sends information to other modules (such as radio frequency modules or antennas) in the access network device, which is information sent by the access network device to the terminal. Here, the access network device module can be the baseband chip of the access network device, or it can be a DU or other modules. The DU here can be a DU under an open radio access network (O-RAN) architecture.

[0226] In this application, entity A sends information to entity B, either directly or indirectly through other entities. Similarly, entity B receives information from entity A, either directly or indirectly through other entities. Entities A and B can be RAN nodes or terminals, or modules within RAN nodes or terminals. Information transmission and reception can be between RAN nodes and terminals, such as between a base station and a terminal; between two RAN nodes, such as between a CU and a DU; or between different modules within a single device, such as between a terminal chip and other modules of the terminal, or between a base station chip and other modules of the base station.

[0227] It is understood that the processor in the embodiments of this application can be a central processing unit, or other general-purpose processors, digital signal processors, application-specific integrated circuits, field-programmable gate arrays, or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. A general-purpose processor can be a microprocessor or any conventional processor.

[0228] The method steps in the embodiments of this application can be implemented in hardware or by a processor executing software instructions. The software instructions can consist of corresponding software modules, which can be stored in random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disks, portable hard disks, optical discs, or any other form of storage medium known in the art. An exemplary storage medium is coupled to a processor, enabling the processor to read information from and write information to the storage medium. Of course, the storage medium can also be a component of the processor. The processor and storage medium can reside in an application-specific integrated circuit (ASIC). Alternatively, the ASIC can reside in a network device or terminal. Of course, the processor and storage medium can also exist as discrete components in a network device or terminal.

[0229] In the above embodiments, implementation can be achieved entirely or partially through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented entirely or partially in the form of a computer program product. The computer program product includes one or more computer programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of this application are performed entirely or partially. The computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user equipment, or other programmable device. The computer program or instructions can be stored in a computer-readable storage medium or transferred from one computer-readable storage medium to another. For example, the computer program or instructions can be transferred from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium, such as a floppy disk, hard disk, or magnetic tape; it can also be an optical medium, such as a digital video optical disc; or it can be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both types of storage media.

[0230] In the various embodiments of this application, unless otherwise specified or in case of logical conflict, the terminology and / or descriptions of different embodiments are consistent and can be referenced by each other. The technical features of different embodiments can be combined to form new embodiments according to their inherent logical relationship.

[0231] In this application, "at least one" means one or more, and "more than one" means two or more. "And / or" describes 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, or B alone, where A and B can be singular or plural. In the textual description of this application, the character " / " generally indicates an "or" relationship between the preceding and following related objects; in the formulas of this application, the character " / " indicates a "division" relationship between the preceding and following related objects. "Including at least one of A, B, and C" can mean: including A; including B; including C; including A and B; including A and C; including B and C; including A, B, and C.

[0232] It is understood that the various numerical designations used in the embodiments of this application are merely for descriptive convenience and are not intended to limit the scope of the embodiments of this application. The order of the process numbers described above does not imply the order of execution; the execution order of each process should be determined by its function and internal logic.

Claims

1. A perception method, comprising: The method includes: The sensing signal is transmitted between the first bandwidth portion and the access network equipment; Communication signals are transmitted between the second bandwidth portion and the access network device; wherein the transmission bandwidth of the first bandwidth portion is greater than the transmission bandwidth of the second bandwidth portion.

2. The method of claim 1, wherein, The first bandwidth portion is located on the first carrier, and the second bandwidth portion is located on the second carrier. The first carrier and the second carrier are different.

3. The method of claim 2, wherein, When the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the maximum transmission bandwidth corresponding to the first carrier is greater than the maximum transmission bandwidth corresponding to the second carrier.

4. The method according to claim 2 or 3, characterized in that, When the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth corresponding to the first carrier is less than the minimum protection bandwidth corresponding to the second carrier.

5. The method according to any one of claims 2 to 4, characterized in that, The minimum guard bandwidth corresponding to the first carrier satisfies the following formula: N GB = BW channel * 1000 (kHz) - N RB * SCS * 12 Wherein, the N gB is the minimum guard bandwidth corresponding to the first carrier, the BW channel is the channel bandwidth of the first carrier, the N RB is the number of resource blocks (RBs) included in the maximum transmission bandwidth corresponding to the first carrier, and the SCS is the subcarrier spacing corresponding to the first carrier.

6. The method according to any one of claims 2 to 5, characterized in that, The method further includes: Send a first indication information and / or a second indication information to the access network device; the first indication information is used to indicate a supported first downlink bandwidth; the second indication information is used to indicate a supported first uplink bandwidth; the first downlink bandwidth is the channel bandwidth of the downlink carrier used for transmitting sensing signals; the first uplink bandwidth is the channel bandwidth of the uplink carrier used for transmitting sensing signals.

7. The method of claim 1, wherein, The first bandwidth portion and the second bandwidth portion are located on the same carrier.

8. The method of claim 7, wherein, The maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion.

9. The method according to claim 7 or 8, characterized in that, The method further includes: Send a third indication message and / or a fourth indication message to the access network device; the third indication message indicates one or more of the following: the second downlink bandwidth of the supported downlink carrier, the configuration of the guard bandwidth within the supported downlink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals; the fourth indication message indicates one or more of the following: the second uplink bandwidth of the supported uplink carrier, the configuration of the guard bandwidth within the supported uplink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals. The downlink carrier is used to transmit sensing signals and communication signals, and the uplink carrier is used to transmit sensing signals and communication signals.

10. A perception method comprising: The method includes: The transmission of sensing signals is performed between the first bandwidth portion and the terminal; Communication signals are transmitted between the second bandwidth portion and the terminal; wherein the transmission bandwidth of the first bandwidth portion is greater than the transmission bandwidth of the second bandwidth portion.

11. The method of claim 10, wherein, The first bandwidth portion is located on the first carrier, and the second bandwidth portion is located on the second carrier. The first carrier and the second carrier are different.

12. The method of claim 11, wherein, When the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the maximum transmission bandwidth corresponding to the first carrier is greater than the maximum transmission bandwidth corresponding to the second carrier.

13. The method according to claim 11 or 12, characterized in that, When the channel bandwidth of the first carrier and the channel bandwidth of the second carrier are the same, and the subcarrier spacing of the first carrier and the subcarrier spacing of the second carrier are the same, the minimum protection bandwidth corresponding to the first carrier is less than the minimum protection bandwidth corresponding to the second carrier.

14. The method according to any one of claims 11 to 13, characterized in that, The minimum guard bandwidth corresponding to the first carrier satisfies the following formula: N GB = BW channel * 1000 (kHz) - N RB * SCS * 12 Wherein, the N GB is the minimum guard bandwidth corresponding to the first carrier, the BW channel is the channel bandwidth of the first carrier, the N RB is the number of resource blocks (RBs) included in the maximum transmission bandwidth corresponding to the first carrier, and the SCS is the subcarrier spacing corresponding to the first carrier.

15. The method according to any one of claims 11 to 14, characterized in that, The method further includes: The terminal receives a first indication information and / or a second indication information; the first indication information is used to indicate a supported first downlink bandwidth; the second indication information is used to indicate a supported first uplink bandwidth; the first downlink bandwidth is the channel bandwidth of the downlink carrier used to transmit sensing signals; the first uplink bandwidth is the channel bandwidth of the uplink carrier used to transmit sensing signals.

16. The method of claim 10, wherein, The first bandwidth portion and the second bandwidth portion are located on the same carrier.

17. The method of claim 16, wherein, The maximum transmission bandwidth corresponding to the first bandwidth portion is greater than the maximum transmission bandwidth corresponding to the second bandwidth portion.

18. The method of claim 16 or 17, wherein, The method further includes: The terminal receives a third indication message and / or a fourth indication message; the third indication message indicates one or more of the following: the second downlink bandwidth of the supported downlink carrier, the configuration of the guard bandwidth within the supported downlink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported downlink carrier used for transmitting communication signals; the fourth indication message indicates one or more of the following: the second uplink bandwidth of the supported uplink carrier, the configuration of the guard bandwidth within the supported uplink carrier, the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting sensing signals, and the configuration of the maximum transmission bandwidth corresponding to the bandwidth portion within the supported uplink carrier used for transmitting communication signals. The downlink carrier is used to transmit sensing signals and communication signals, and the uplink carrier is used to transmit sensing signals and communication signals.

19. A communication apparatus comprising a module for performing the method as claimed in any one of claims 1 to 9, or comprising a module for performing the method as claimed in any one of claims 10 to 18.

20. A communications device, characterized by The device includes a processor and an interface circuit, wherein the interface circuit is used to receive signals from other communication devices and transmit them to the processor or to send signals from the processor to other communication devices. The processor is used to implement the method as described in any one of claims 1 to 9 through logic circuits or executable code instructions, or the processor is used to implement the method as described in any one of claims 10 to 18 through logic circuits or executable code instructions.

21. A computer-readable storage medium, characterized in that, The storage medium stores a computer program or instructions that, when executed by a communication device, implement the method as described in any one of claims 1 to 9, or implement the method as described in any one of claims 10 to 18.

22. A computer program product comprising computer programs or instructions, characterized in that, The computer program or the instructions, when executed by the communication device, implement the method according to any one of claims 1 to 9, or the computer program or the instructions, when executed by the communication device, implement the method according to any one of claims 10 to 18.

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