Communication method and apparatus

Abstract

A communication method and apparatus. The method comprises: a second device sending configuration information of a first bandwidth part (BWP), wherein the configuration information of the first BWP is used for configuring a bandwidth for transmitting a chirp signal, a frequency linear change value, and at least one of an initial frequency point and an operating frequency point; a first device receiving the configuration information of the first BWP; and the first device receiving the chirp signal on the first BWP. It can be seen that a first device can use a configured first BWP to receive a chirp signal, thereby helping the first device to apply the chirp signal.

Description

Communication method and device

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on November 21, 2023, with application number 202311563330.7 and application name “A Communication Method and Device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0003] A chirp signal is a signal whose frequency changes (increases or decreases) over time. Chirp signals are often used as linear modulation signals to achieve greater system processing gain.

[0004] Chirp signals can also carry a small amount of information and can be used as wake-up signals (WUS), which are used to restore a device from standby or sleep mode to working mode. Chirp signals can also be used as radar or sonar sensing signals, and can be used through radio frequency or non-radio frequency methods to sense location, speed, distance, direction, shape, or texture.

[0005] However, how to receive Chirp signals remains a problem to be solved.

[0006] Summary of the Invention

[0007] The embodiments of the present application provide a communication method and apparatus, which can utilize a configured first BWP to implement reception of a chirp signal.

[0008] In a first aspect, embodiments of the present application provide a communication method that can be performed by a first device. The first device herein may refer to the first device itself or to a processor, module, chip, or chip system within the first device that implements the method. In the method, the first device receives configuration information for a first bandwidth part (BWP). The configuration information for the first BWP is used to configure the bandwidth, linear frequency variation value, and at least one of an initial frequency and an operating frequency for transmitting a chirp signal. The first device receives the chirp signal on the first BWP.

[0009] It can be seen that in the embodiment of the present application, the first device can use the configured first BWP to receive the chirp signal, which is conducive to the first device applying the chirp signal, such as using the chirp signal for perception, or waking up the first device based on the chirp signal.

[0010] In an optional embodiment, the configuration information of the first BWP is also used to configure a time domain repetition interval for the chirp signal. The time domain repetition interval of the chirp signal refers to the interval at which the chirp signal is repeatedly transmitted on the time domain resource. This method enables the first device to repeatedly receive the chirp signal on the time domain resource based on the time domain repetition interval of the chirp signal.

[0011] In one optional embodiment, the chirp signal is a perception signal or a wake-up signal. When the chirp signal is a perception signal, the first device can apply the received chirp signal to a perception scenario, i.e., use the received chirp signal for perception. When the chirp signal is a wake-up signal, the first device can apply the received chirp signal to a wake-up scenario and wake up the first device based on the received chirp signal.

[0012] In an optional embodiment, before receiving the chirp signal on the first BWP, the first device also receives first indication information, where the first indication information is used to indicate activation of the first BWP. Thus, after receiving the first indication information, the first device receives the chirp signal on the first BWP; alternatively, after receiving the first indication information, the first device activates the first BWP and receives the chirp signal on the first BWP.

[0013] In an optional embodiment, the first device is a terminal device, and before receiving the chirp signal on the first BWP, the terminal device switches from the second BWP to the first BWP when a first switching condition is met, and the second BWP is used for terminal device communication. The first switching condition is that the terminal device is in an idle state or an inactive state, or the terminal device's discontinuous reception (DRX) is within a valid time, or the terminal device switches from a first mode to a second mode. The number of antennas used by the terminal device in the first mode is greater than the number of antennas used in the second mode, and / or the bandwidth used in the first mode is greater than the bandwidth used in the second mode.

[0014] As can be seen, when the first switching condition is met, the terminal device may switch from the working state to the sleeping state, thereby switching from the second BWP used for communication to the first BWP used for receiving chirp signals, and then receiving chirp signals on the first BWP. This approach can save power consumption of the terminal device.

[0015] In an optional embodiment, before the terminal device switches from the second BWP to the first BWP, it further receives second indication information, where the second indication information is used to indicate the first switching condition. Specifically, the second indication information is used to indicate the first switching condition for the terminal device to switch from the BWP used for communication to the BWP used for receiving chirp signals. For example, the second indication information is used to indicate the first switching condition for the terminal device to switch from the second BWP to the first BWP.

[0016] It can be seen that before the terminal device switches from the BWP for communication to the BWP for receiving chirp signals, it can also obtain a first switching condition. The first switching condition can be configured by the network device to the terminal device, so that the terminal device receives the first switching condition from the network device.

[0017] In an optional embodiment, the second indication information is also used to indicate a second switching delay, where the second switching delay is the time interval for the terminal device to switch from the BWP used for communication to the BWP used for receiving the chirp signal. For example, the second switching delay is the time interval for the terminal device to switch from the second BWP to the first BWP.

[0018] In an optional embodiment, the first device is a terminal device, and the terminal device may further switch from the first BWP to a third BWP when a second switching condition is met, where the third BWP is used for terminal device communication. The second switching condition is that the terminal device receives a wake-up signal, or the terminal device enters a connected state or establishes a radio resource control RRC connection, or a DRX timer of the terminal device times out.

[0019] As can be seen, when the second switching condition is met, the terminal device may switch from the sleep state to the working state, thereby switching from the first BWP used for receiving chirp signals to the third BWP used for communication, and then communicating on the third BWP. This approach can ensure the continuity of terminal device communication.

[0020] In an optional embodiment, before the terminal device switches from the first BWP to the third BWP when the second switching condition is met, the terminal device further receives third indication information, where the third indication information is used to indicate the second switching condition. Specifically, the third indication information is used to indicate the second switching condition for the terminal device to switch from the BWP for receiving chirp signals to the BWP for communication. For example, the third indication information is used to indicate the second switching condition for the terminal device to switch from the first BWP to the third BWP.

[0021] It can be seen that before the terminal device switches from the BWP for receiving chirp signals to the BWP for communication, it can also obtain a second switching condition. The second switching condition can be configured by the network device to the terminal device, so that the terminal device receives the second switching condition from the network device.

[0022] In an optional embodiment, the third indication information is also used to indicate a second switching delay, where the second switching delay is the time interval for the terminal device to switch from a BWP for receiving chirp signals to a BWP for communication. For example, the second switching delay is the time interval for the terminal device to switch from a first BWP to a third BWP.

[0023] In an optional implementation, the first device further receives fourth indication information, where the fourth indication information is used to indicate a fourth BWP associated with the first BWP, and the fourth BWP is used for communication. This approach allows the first device to learn about the fourth BWP associated with the first BWP.

[0024] In an optional implementation, at least one of the following is carried in downlink control information DCI or RRC signaling: first indication information, second indication information, third indication information, or fourth indication information. This approach can reduce signaling overhead.

[0025] In an optional implementation, the configuration information of the first BWP further includes coding information, and the coding information is used to perform phase coding on the chirp signal. This approach facilitates the first device to perform phase decoding on the chirp signal based on the coding information.

[0026] In an optional implementation, when the chirp signal is a sensing signal, the first device further utilizes a fifth BWP for communication, where the frequency band occupied by the fifth BWP is lower than the frequency band occupied by the first BWP. The frequency band occupied by the fifth BWP is lower than the frequency band occupied by the first BWP, which can be understood as: the highest frequency point of the frequency band occupied by the fifth BWP is lower than the lowest frequency point of the frequency band occupied by the first BWP.

[0027] It can be seen that when the first device uses the first BWP in the high frequency band to receive the perception signal, it can also use the fifth BWP in the low frequency band for communication, thereby realizing the integration of communication and perception.

[0028] In a second aspect, embodiments of the present application provide a communication method that can be performed by a second device. The second device herein can refer to the second device itself or a processor, module, chip, or chip system within the second device that implements the method. In this method, the second device transmits configuration information for a first BWP. This configuration information is used to configure the bandwidth, linear frequency variation value, and at least one of the initial frequency and operating frequency for transmitting a chirp signal. The configuration information for the first BWP is used to receive the chirp signal.

[0029] It can be seen that in the embodiment of the present application, the second device is configured with a first BWP for receiving the chirp signal, which is beneficial for the first device to use the configured first BWP to receive the chirp signal, and further beneficial for the first device to apply the chirp signal.

[0030] In an optional embodiment, the configuration information of the first BWP is further used to configure a time domain repetition interval for the chirp signal. The time domain repetition interval for the chirp signal refers to the interval at which the chirp signal is repeatedly transmitted on the time domain resource. This approach facilitates the first device to repeatedly receive the chirp signal on the time domain resource based on the time domain repetition interval for the chirp signal.

[0031] In one optional embodiment, the chirp signal is a perception signal or a wake-up signal. When the chirp signal is a perception signal, it facilitates the first device to apply the received chirp signal to a perception scenario, i.e., it facilitates the first device to use the received chirp signal for perception. When the chirp signal is a wake-up signal, it facilitates the first device to apply the received chirp signal to a wake-up scenario, i.e., it facilitates the first device to wake up the first device based on the received chirp signal.

[0032] In an optional implementation, the second device may further send first indication information, where the first indication information is used to indicate activation of the first BWP. This approach facilitates the first device receiving the chirp signal on the first BWP after receiving the first indication information; alternatively, it facilitates the first device activating the first BWP and receiving the chirp signal on the first BWP after receiving the first indication information.

[0033] In an optional embodiment, the second device further sends a second indication information, and the second indication information is used to instruct the terminal device to switch from the BWP used for communication to the BWP used for receiving the chirp signal. For example, the second indication information is used to indicate a first switching condition for the terminal device to switch from the second BWP to the first BWP, and the second BWP is used for terminal device communication. The first switching condition is that the terminal device is in an idle state or an inactive state, or the discontinuous reception DRX of the terminal device is within a valid time, or the terminal device switches from the first mode to the second mode. The number of antennas used by the terminal device in the first mode is greater than the number of antennas used in the second mode, and / or the bandwidth used in the first mode is greater than the bandwidth used in the second mode.

[0034] The manner in which the second device sends the second indication information is conducive to the first device switching from the BWP used for communication to the BWP used for receiving chirp signals, for example, switching from the second BWP to the first BWP, when the second switching condition is met.

[0035] In an optional embodiment, the second indication information is further used to indicate a first switching delay for the terminal device to switch from the BWP used for communication to the BWP used for receiving the chirp signal. For example, the second indication information is further used to indicate the first switching delay for the terminal device to switch from the second BWP to the first BWP, so that the time interval for the terminal device to switch from the second BWP to the first BWP is the first switching delay.

[0036] In an optional implementation, the second device further sends a third indication message, and the third indication message is used to indicate a second switching condition for the terminal device to switch from a BWP for receiving a chirp signal to a BWP for communication. For example, the third indication message is used to indicate a second switching condition for the terminal device to switch from a first BWP to a third BWP, and the third BWP is used for terminal device communication. The second switching condition is that the terminal device receives a wake-up signal, or the terminal device enters a connected state or establishes a radio resource control RRC connection, or the DRX timer of the terminal device times out.

[0037] The manner in which the second device sends the third indication information is conducive to the terminal device switching from the BWP for receiving chirp signals to the BWP for communication when the second switching condition is met, for example, switching from the first BWP to the third BWP.

[0038] In an optional implementation, the third indication information is further used to indicate a second switching delay for the terminal device to switch from the BWP for receiving the chirp signal to the BWP for communication. For example, the third indication information is further used to indicate a second switching delay for the terminal device to switch from the first BWP to the third BWP, so that the time interval for the terminal device to switch from the first BWP to the third BWP is the second switching delay.

[0039] In an optional embodiment, the second device further transmits fourth indication information, where the fourth indication information is used to indicate a fourth BWP associated with the first BWP, the fourth BWP being used for communication. This approach facilitates the second device subsequently indicating the activated BWP to the first device based on the association between the first BWP and the fourth BWP, thereby reducing indication overhead.

[0040] In an optional implementation, at least one of the following is carried in downlink control information DCI or RRC signaling: first indication information, second indication information, third indication information, or fourth indication information. This approach can reduce signaling overhead.

[0041] In an optional implementation, the configuration information of the first BWP further includes coding information, where the coding information is used to perform phase coding on the chirp signal. This approach facilitates the first device to decode the chirp signal based on the coding information.

[0042] In a third aspect, an embodiment of the present application further provides a communication device. The communication device has the function of implementing some or all of the functions of the first device described in the first aspect above, or implementing some or all of the functions of the second device described in the second aspect above. For example, the functions of the communication device may have the functions of some or all of the embodiments of the first device described in the first aspect of the embodiment of the present application, or may have the function of implementing any one of the embodiments of the present application alone. The functions may be implemented by hardware, or may be implemented by hardware executing corresponding software. The hardware or software includes one or more units or modules corresponding to the above functions.

[0043] In one possible design, the communication device may include a processing unit and a communication unit. The processing unit is configured to support the communication device in performing the corresponding functions in the above method. The communication unit is configured to support communication between the communication device and other communication devices. The communication device may also include a storage unit, which is coupled to the processing unit and the communication unit and stores program instructions and data necessary for the communication device.

[0044] In one embodiment, the communication apparatus includes: a processing unit and a communication unit, the apparatus is applied to a first device, the processing unit is configured to process a signal / signaling;

[0045] The communication unit is configured to receive configuration information of a first bandwidth part BWP, where the configuration information of the first BWP is used to configure a bandwidth, a linear frequency change value, and at least one of an initial frequency point and an operating frequency point for transmitting a chirp signal;

[0046] The communication unit is further configured to receive the chirp signal on the first BWP.

[0047] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the first aspect above and will not be described in detail here.

[0048] In another embodiment, the communication apparatus includes: a processing unit and a communication unit, the apparatus is applied to the second device, the processing unit is used to process the signal / signaling;

[0049] The communication unit is used to send configuration information of a first BWP, where the configuration information of the first BWP is used to configure the bandwidth, frequency linear change value, and at least one of the initial frequency and the operating frequency of the transmitted chirp signal; the configuration information of the first BWP is used to receive the chirp signal.

[0050] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the first aspect above and will not be described in detail here.

[0051] As an example, the communication unit may be a transceiver or a communication interface, the storage unit may be a memory, and the processing unit may be a processor.

[0052] In one embodiment, the communication apparatus includes: a processor and a transceiver, the apparatus is applied to a first device, and the processor is configured to process signals / signaling;

[0053] The transceiver is configured to receive configuration information of a first bandwidth part BWP, where the configuration information of the first BWP is used to configure a bandwidth, a linear frequency change value, and at least one of an initial frequency point and an operating frequency point for transmitting a chirp signal;

[0054] The transceiver is further configured to receive the chirp signal on the first BWP.

[0055] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the first aspect above and will not be described in detail here.

[0056] In another embodiment, the communication apparatus includes: a processor and a transceiver, the apparatus is applied to the second device, and the processor is used to process the signal / signaling;

[0057] The transceiver is used to send configuration information of a first BWP, where the configuration information of the first BWP is used to configure the bandwidth, frequency linear change value, and at least one of the initial frequency and the operating frequency of the transmitted chirp signal; the configuration information of the first BWP is used to receive the chirp signal.

[0058] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the second aspect above and will not be described in detail here.

[0059] In another embodiment, the communication device is a chip or a chip system. The processing unit may also be embodied as a processing circuit or a logic circuit; and the communication unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin, or related circuits on the chip or chip system.

[0060] During implementation, the processor can be used to perform, for example, but not limited to, baseband-related processing, and the transceiver can be used to perform, for example, but not limited to, radio frequency transceiver processing. The aforementioned devices can be provided on separate chips, or at least partially or entirely on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. The analog baseband processor can be integrated with the transceiver on the same chip, while the digital baseband processor can be provided on a separate chip. With the continuous development of integrated circuit technology, more and more devices can be integrated on the same chip. For example, a digital baseband processor can be integrated with multiple application processors (such as, but not limited to, a graphics processor, a multimedia processor, etc.) on the same chip. Such a chip can be called a system on a chip (SoC). Whether each device is provided independently on different chips or integrated on one or more chips often depends on the needs of the product design. The embodiments of the present application do not limit the implementation form of the aforementioned devices.

[0061] In a fourth aspect, an embodiment of the present application further provides a processor for executing the various methods described above. In the process of executing these methods, the process of sending the above-mentioned information and receiving the above-mentioned information in the above-mentioned methods can be understood as the process of the processor outputting the above-mentioned information and the process of the processor receiving the above-mentioned information input. When outputting the above-mentioned information, the processor outputs the above-mentioned information to the transceiver so that the transceiver can transmit it. After being output by the processor, the above-mentioned information may also need to undergo other processing before reaching the transceiver. Similarly, when the processor receives the above-mentioned information input, the transceiver receives the above-mentioned information and inputs it into the processor. Furthermore, after the transceiver receives the above-mentioned information, the above-mentioned information may need to undergo other processing before being input into the processor.

[0062] For the sending and receiving operations involved in the processor, unless otherwise specified, or unless they conflict with their actual functions or internal logic in the relevant descriptions, they can be more generally understood as processor output, reception, input and other operations, rather than sending and receiving operations directly performed by the RF circuit and antenna.

[0063] During implementation, the processor may be a processor specifically configured to execute these methods, or may be a processor that executes computer instructions in a memory to execute these methods, such as a general-purpose processor. The memory may be a non-transitory memory, such as a read-only memory (ROM), which may be integrated with the processor on the same chip or disposed on separate chips. The embodiments of the present application do not limit the type of memory or the configuration of the memory and the processor.

[0064] In a fifth aspect, an embodiment of the present application further provides a communication system, which includes a terminal device and a network device. In another possible design, the system may also include other devices / functional network elements that interact with the terminal device and the network device.

[0065] In a sixth aspect, an embodiment of the present application provides a computer-readable storage medium for storing instructions, which, when executed by a computer, implements the method described in the first or second aspect above.

[0066] In a seventh aspect, an embodiment of the present application further provides a computer program product comprising instructions, which, when executed on a computer, implements the method described in the first or second aspect above.

[0067] In an eighth aspect, an embodiment of the present application provides a chip system, which includes a processor and an interface, wherein the interface is used to obtain a program or instruction, and the processor is used to call the program or instruction to implement or support the first device to implement the function involved in the first aspect, or to implement or support the second device to implement the function involved in the second aspect. For example, determining or processing at least one of the data and information involved in the above method. In one possible design, the chip system also includes a memory, which is used to store program instructions and data necessary for the terminal. The chip system can be composed of chips, or it can include chips and other discrete devices.

[0068] In the ninth aspect, an embodiment of the present application provides a communication device, comprising a processor for executing a computer program or executable instructions stored in a memory, so that when the computer program or executable instructions are executed, the device executes the methods in each possible implementation of the first aspect or the second aspect.

[0069] In one possible implementation, the processor and memory are integrated;

[0070] In another possible implementation, the memory is located outside the communication device.

[0071] The beneficial effects of the third to ninth aspects can refer to the beneficial effects of the first or second aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0072] FIG1 is a schematic diagram of a system architecture;

[0073] FIG2 is a schematic diagram of a system architecture of an independent network;

[0074] Figure 3 is a schematic diagram of the system architecture for macro and micro scenarios;

[0075] FIG4 is a schematic diagram of the time domain response and frequency domain response of a chirp signal;

[0076] FIG5 is an interactive diagram of a communication method provided in an embodiment of the present application;

[0077] FIG6 is a schematic diagram of a chirp signal provided in an embodiment of the present application;

[0078] FIG7 is a schematic diagram of coding information provided in an embodiment of the present application;

[0079] FIG8a is a schematic diagram of a BWP provided in an embodiment of the present application;

[0080] FIG8 b is a schematic diagram of another BWP provided in an embodiment of the present application;

[0081] FIG9 is a schematic diagram of another BWP provided in an embodiment of the present application;

[0082] FIG10 is a schematic diagram of another BWP provided in an embodiment of the present application;

[0083] FIG11 is a schematic diagram of another BWP provided in an embodiment of the present application;

[0084] FIG12 is a schematic diagram of another BWP provided in an embodiment of the present application;

[0085] FIG13 is a schematic diagram of a BWP switching provided in an embodiment of the present application;

[0086] FIG14 is a schematic structural diagram of a communication device provided in an embodiment of the present application;

[0087] FIG15 is a schematic structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0088] The technical solutions in the embodiments of the present application are described clearly and completely below in conjunction with the drawings in the embodiments of the present application.

[0089] To better understand the embodiments of the present application, the following first introduces the system architecture involved in the embodiments of the present application:

[0090] The embodiments of the present application can be applied to systems evolved after 5G, such as long-term evolution (LTE) systems, fifth-generation (5G) mobile communication systems, and sixth-generation (6G) mobile communication systems, as well as satellite communications and short-range wireless communication systems. The system architecture is shown in Figure 1. A wireless communication system may include one or more network devices and one or more terminal devices. A wireless communication system may also perform point-to-point communication, such as communication between multiple terminal devices.

[0091] The communication scenarios to which the embodiments of the present application are applicable include but are not limited to terrestrial cellular communications, non-terrestrial network (NTN) communications, satellite communications, high altitude platform station (HAPS) communications, vehicle-to-everything (V2X), integrated access and backhaul (IAB), reconfigurable intelligent surface (RIS) communications, and other scenarios.

[0092] In an embodiment of the present application, the network device is a device with wireless transceiver functions, which is used to communicate with a terminal device. It can be an evolved base station (evolved Node B, eNB or eNodeB) in LTE, or a base station in a 5G / 6G network or a base station in a future evolved public land mobile network (public land mobile network, PLMN), a broadband network service gateway (BNG), an aggregation switch or a non-third generation partnership project (3GPP) access device, etc. Optionally, the network devices in the embodiments of the present application may include various forms of base stations, such as: macro base stations, micro base stations (also known as small stations), relay stations, access points, devices that realize base station functions in the future, access points (APs) in wireless fidelity (WiFi) systems, transmitting and receiving points (TRPs), transmitting points (TPs), mobile switching centers, and devices that perform base station functions in device-to-device (D2D), V2X, and machine-to-machine (M2M) communications, devices that realize base station functions in communication systems evolved after 5G, IABs, and may also include centralized units (CUs) and distributed units (DUs) in cloud radio access networks (C-RAN) systems, and network devices in NTN communication systems, that is, they can be deployed on high-altitude platforms or satellites, and may also be various devices that constitute access nodes, such as active antenna processing units (AAUs) and baseband units (BBUs). The embodiments of the present application do not specifically limit this.

[0093] Network devices can communicate and interact with core network devices to provide communication services to terminal devices. Core network devices are, for example, devices in the 5G core network (CN). As a bearer network, the core network provides an interface to the data network, providing communication connections, authentication, management, policy control, and data service delivery for terminals.

[0094] In the embodiments of the present application, the terminal device may include various handheld devices, vehicle-mounted devices, wearable devices, computing devices, or other processing devices connected to a wireless modem with wireless communication capabilities. The terminal device may also be referred to as a terminal. Terminal equipment may also refer to user equipment (UE), access terminal, subscriber unit, user agent, cellular phone, smart phone, wireless data card, personal digital assistant (PDA), tablet computer, wireless modem, handheld device (handset), laptop computer, smart point of sale (POS), customer-premises equipment (CPE), machine type communication (MTC) terminal, communication equipment carried on high-altitude aircraft, wearable device, drone, robot, terminal in D2D, terminal in V2X, virtual reality (VR) terminal device, augmented reality (AR) terminal device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, etc. This application does not limit the wireless terminals in the city, the wireless terminals in the smart home, or the terminal devices in the future communication network.

[0095] In the embodiment of the present application, the first device may be a terminal device or a network device. When the first device is a terminal device, the second device may be a network device or a terminal device different from the first device; when the first device is a network device, the second device may be a terminal device.

[0096] The embodiments of the present application can be applied to standalone (SA) communication scenarios. SA communication scenarios refer to: the terminal device is connected to a single base station, and the base station to which the terminal device is connected and the core network to which the base station is connected are of the same standard. For example, the core network is 5Gcore, the base station to which the terminal device is connected is a 5G base station, and the 5G base station is directly connected to the 5Gcore. For another example, the core network is 6Gcore, the base station to which the terminal device is connected is a 6G base station, and the 6G base station is directly connected to the 6Gcore. Please refer to Figure 2, which is a schematic diagram of the system architecture of a standalone network. Specifically, Figure 2 is a schematic diagram of the system architecture of SA under a 6G mobile communication system. As shown in Figure 2, the terminal device is connected to a 6G base station, and the 6G base station is directly connected to the 6Gcore.

[0097] The embodiments of the present application can also be applied to macro and micro scenarios. Macro and micro scenarios refer to: in network deployment, the macro station provides wide coverage, and some small stations will be deployed within the coverage of the macro station. For example, for hot spots covered by macro stations, such as office areas, stadiums, shopping malls and other scenarios, due to the large number of users and large traffic flow, in order to ensure user experience, some small stations will be deployed accordingly. Please refer to Figure 3, which is a schematic diagram of the system architecture under a macro and micro scenario. As shown in Figure 3, the base station provides wide coverage, and Site 1 and Site 2 are small stations deployed within the coverage of the base station. Site 1 and Site 2 can provide network services to terminal devices near the site.

[0098] The embodiments disclosed herein will present various aspects, embodiments, or features of the present invention centered around a system comprising multiple devices, components, modules, etc. It should be understood that each system may include additional devices, components, modules, etc., and / or may not include all of the devices, components, modules, etc. discussed in conjunction with the accompanying drawings. Furthermore, combinations of these solutions may also be used.

[0099] A chirp signal is a signal whose carrier frequency increases linearly over the duration of a pulse when encoding the pulse. Alternatively, a chirp signal is a signal whose frequency changes (increases or decreases) over time. The expression for the chirp signal x(t) is:

[0100] Wherein, f0 is the starting frequency of the chirp signal, and u0 is the linear frequency variation value of the chirp signal, which is used to characterize the frequency variation of the chirp signal.

[0101] Please refer to Figure 4, which shows a schematic diagram of the time domain response and frequency domain response of a chirp signal, where BW represents the bandwidth of the chirp signal. As shown in Figure 4, from the time domain and frequency domain, the chirp signal is a signal whose frequency increases over time.

[0102] The Chirp signal can carry a small amount of information, so the Chirp signal can be used as a wake-up signal (WUS). The wake-up signal is used to restore the device from a standby / sleep state to a working state.

[0103] Chirp signals also retain the characteristics of both continuous and pulsed signals. Therefore, they are widely used in radar and sonar detection. For example, using chirp signals in radar positioning technology can increase the RF pulse width, improve average transmit power, and extend communication distance while maintaining sufficient signal spectrum width and not reducing the radar's range resolution. Therefore, chirp signals can also serve as sensing signals for radar and sonar, enabling both RF and non-RF sensing, including position, velocity, distance, direction, shape, or texture.

[0104] However, how to receive chirp signals has not yet been defined, making it impossible to apply chirp signals to scenarios such as perception and wake-up.

[0105] An embodiment of the present application provides a communication method 100. In this method, a second device sends configuration information of a first bandwidth part (BWP) to a first device. The configuration information of the first BWP is used to configure the bandwidth, linear frequency variation value, and at least one of an initial frequency and an operating frequency for transmitting a chirp signal. The first device receives the chirp signal on the first BWP. It can be seen that the first device can use the configured first BWP to receive the chirp signal, thereby facilitating the first device to apply the chirp signal, such as using the chirp signal for sensing or waking up the first device based on the chirp signal.

[0106] The present application embodiment provides a communication method 100. FIG5 is an interaction diagram of the communication method 100. The communication method 100 is described from the perspective of the interaction between the first device and the second device. The communication method 100 includes but is not limited to the following steps:

[0107] S101. The second device sends configuration information of a first bandwidth part (BWP), where the configuration information of the first BWP is used to configure the bandwidth, linear frequency variation value, and at least one of the initial frequency and the operating frequency for transmitting a chirp signal. Accordingly, the first device receives the configuration information of the first BWP.

[0108] The configuration information for the first BWP is used to configure the bandwidth, linear frequency variation value, and at least one of the initial frequency and operating frequency of the transmitted chirp signal. This can be understood as follows: the configuration information for the first BWP includes the chirp signal's BW, linear frequency variation value u0, and at least one of the initial frequency f0 and operating frequency f1. For example, the configuration information for the first BWP includes the chirp signal's BW, u0, and f0. For another example, the configuration information for the first BWP includes the chirp signal's BW, u0, and f1. For another example, the configuration information for the first BWP includes the chirp signal's BW, u0, f0, and f1.

[0109] The BW of a chirp signal also indicates the bandwidth occupied by the first BWP used to transmit the chirp signal. The u0 of a chirp signal also indicates the frequency variation of the first BWP used to transmit the chirp signal. The f0 of a chirp signal also indicates the initial frequency of the first BWP used to transmit the chirp signal. The f1 of a chirp signal also indicates the operating frequency of the first BWP used to transmit the chirp signal.

[0110] Furthermore, the second device sending the configuration information of the first BWP includes: the second device sending the configuration information of the first BWP to the first device. Thus, the second device configures the first BWP for transmitting the chirp signal to the first device using the configuration information of the first BWP. Thus, the second device can transmit the chirp signal on the first BWP.

[0111] Optionally, the first device further determines the first BWP for receiving the chirp signal based on the configuration information of the first BWP, thereby facilitating the first device to receive the chirp signal on the first BWP.

[0112] In one optional embodiment, the chirp signal is a perception signal or a wake-up signal WUS. When the chirp signal is a perception signal, it facilitates the first device to receive the perception signal of the chirp signal type on the first BWP, thereby facilitating the first device to apply the received chirp signal to a perception scenario. That is, the first device can use the received chirp signal for perception. When the chirp signal is a wake-up signal, it facilitates the first device to receive the wake-up signal of the chirp signal type on the first BWP, thereby facilitating the first device to apply the received chirp signal to a wake-up scenario.

[0113] In an optional embodiment, the configuration information of the first BWP is also used to configure the time domain repetition interval of the chirp signal. The time domain repetition interval Δt of the chirp signal refers to the time domain interval at which the second device repeatedly transmits the chirp signal on the time domain resource, wherein the chirp signal has a bandwidth of BW, a linear frequency variation value of u0, an initial frequency of f0, and / or an operating frequency of f1. For example, Figure 6 is a schematic diagram of a chirp signal. As shown in Figure 6, the chirp signal is repeatedly transmitted in the time domain at intervals of Δt.

[0114] In an optional embodiment, the configuration information of the first BWP also includes encoding information, which is used to phase encode the chirp signal. The encoding information may be obtained by the second device using an m-sequence, a ZC sequence, a gold sequence, or other sequence to phase encode the chirp signal. This embodiment of the present application does not limit the sequence used by the second device to phase encode the chirp signal.

[0115] For example, Figure 7 is a schematic diagram of coded information. Specifically, Figure 7 is a schematic diagram of coded information obtained by the second device using an m-sequence to perform phase coding on a chirp signal, where the m-sequence is {+1, -1, +1, +1, -1}.

[0116] As can be seen, the coded information included in the first BWP configuration information is obtained by the second device performing phase encoding on the chirp signal. Therefore, the coded information can carry other information, such as the target user's (or perceiving user's) profile, type, trajectory, orientation, or speed, which facilitates the first device's decoding of the coded information and obtains the information it carries.

[0117] In an optional embodiment, the second device also sends configuration information of one or more BWPs other than the configuration information of the first BWP to the first device, and the configuration information of each BWP in the one or more BWP configuration information is used to configure the bandwidth of the transmitted chirp signal, the frequency linear change value, and at least one of the initial frequency and the operating frequency.

[0118] It can be seen that the second device can configure multiple BWPs for transmitting chirp signals to the first device through the configuration information of multiple BWPs, thereby facilitating the first device to receive chirp signals on multiple BWPs. Among them, the BWP used for the first device to receive chirp signals can be called a sensing bandwidth part (sensing BWP). The sensing BWP is a BWP based on chirp signals, such as a Chirp-Based BWP. The sensing BWP is used to receive sensing signals or wake-up signals whose signal type is a chirp signal. For example, the first BWP can be called a sensing BWP. The BWP used for communication between the first device (such as for communication between the first device and the second device) can be called a communication BWP.

[0119] For example, Figure 8a is a schematic diagram of a BWP. As shown in Figure 8a, the sensing BWPs configured by the second device for the first device include sensing BWP 1, sensing BWP 2, sensing BWP 3, and sensing BWP 4, and the communication BWPs include communication BWP 1, communication BWP 2, and communication BWP 3. The first device can receive a wake-up signal WUS on sensing BWP 1, sensing BWP 3, and sensing BWP 4, and can receive a sensing signal on sensing BWP 2 and use the received sensing signal for sensing. Furthermore, the first device can communicate, for example, with a second device, on communication BWP 1, communication BWP 2, and communication BWP 3.

[0120] In addition, when the chirp signal is a perception signal, the BWP used by the first device to receive the perception signal and the BWP used for communication with the first device may not have an association relationship (independent of each other) or may have an association relationship. The fact that the BWP used by the first device to receive the perception signal and the BWP used for communication with the first device do not have an association relationship can be understood as follows: the time domain resources occupied by the BWP used by the first device to receive the perception signal do not overlap with the time domain resources occupied by the BWP used for communication with the first device, and the frequency domain resources occupied by the BWP used by the first device to receive the perception signal do not overlap with the frequency domain resources occupied by the BWP used for communication with the first device.

[0121] There is an association relationship between the BWP used for the first device to receive the perception signal and the BWP used for communication with the first device, which can be understood as: the time domain resources occupied by the BWP used for the first device to receive the perception signal overlap with the time domain resources occupied by the BWP used for communication with the first device, and the frequency domain resources occupied by the BWP used for the first device to receive the perception signal do not overlap with the frequency domain resources occupied by the BWP used for communication with the first device; or, the time domain resources occupied by the BWP used for the first device to receive the perception signal do not overlap with the time domain resources occupied by the BWP used for communication with the first device, and the frequency domain resources occupied by the BWP used for communication with the first device overlap with the frequency domain resources occupied by the BWP used for communication with the first device; or, the time domain resources occupied by the BWP used for the first device to receive the perception signal overlap with the time domain resources occupied by the BWP used for communication with the first device, and the frequency domain resources occupied by the BWP used for communication with the first device overlap with the frequency domain resources occupied by the BWP used for communication with the first device. It should be noted that the above-mentioned overlap includes partial overlap or complete overlap. Partial overlap includes that at least a part of the BWP for receiving the perception signal on the frequency domain resources or time domain resources is different from the BWP used for communication. For example, in Figure 8a, the sensing BWP 2 for receiving the perception signal on the time domain resources is partially the same as the communication BWP 1 for communication; complete overlap includes that the BWP for receiving the perception signal on the frequency domain resources or time domain resources is completely the same as the BWP used for communication. For example, in Figure 8b, the sensing BWP 1 for receiving the perception signal on the time domain resources is completely the same as the communication BWP 1 for communication.

[0122] Exemplarily, the BWPs used by the first device to receive the sensing signal are one or more sensing BWPs, and the BWPs used by the first device to communicate are one or more communication BWPs. Figure 9 is a schematic diagram of another BWP. As shown in Figure 9, the time domain resources occupied by sensing BWP 1 do not overlap with the time domain resources occupied by communication BWP 1, and the frequency domain resources occupied by sensing BWP 1 do not overlap with the frequency domain resources occupied by communication BWP 1. Therefore, in Figure 9, sensing BWP 1 used by the first device to receive the sensing signal and communication BWP 1 used by the first device to communicate are independent of each other and have no association. In other words, sensing BWP 1 and communication BWP 1 are not associated.

[0123] Figure 10 is a schematic diagram of another BWP. As shown in Figure 10, the frequency domain resources occupied by sensing BWP 1 do not overlap with those occupied by communication BWP 1, and the time domain resources occupied by communication BWP 1 overlap with those occupied by sensing BWP 1. That is, the time domain resources occupied by communication BWP 1 partially overlap with those occupied by sensing BWP 1. Therefore, in Figure 10, there is an association between sensing BWP 1, which is used by the first device to receive the sensing signal, and communication BWP 1, which is used by the first device to communicate. In other words, sensing BWP 1 is associated with communication BWP 1.

[0124] Figure 11 is a schematic diagram of another BWP. As shown in Figure 11, the time domain resources occupied by sensing BWP 1 do not overlap with those occupied by communication BWP 1, and the frequency domain resources occupied by communication BWP 1 overlap with those occupied by sensing BWP 1. That is, the frequency domain resources occupied by sensing BWP 1 and communication BWP 1 partially overlap. Therefore, in Figure 11, there is an association between sensing BWP 1, which is used by the first device to receive the sensing signal, and communication BWP 1, which is used by the first device to communicate. In other words, sensing BWP 1 is associated with communication BWP 1.

[0125] Figure 12 is a schematic diagram of another BWP. As shown in Figure 12, Figure 12 includes sensing BWP 1, sensing BWP 2, sensing BWP 3, sensing BWP 4, and communication BWP 1. The frequency domain resources occupied by communication BWP 1 overlap the frequency domain resources occupied by sensing BWP 1, sensing BWP 2, sensing BWP 3, and sensing BWP 4. The time domain resources occupied by communication BWP 1 overlap the time domain resources occupied by sensing BWP 2 and sensing BWP 3, and are the same as the time domain resources occupied by sensing BWP 1 and sensing BWP 4. Therefore, there is an association relationship between sensing BWP 1, sensing BWP 2, sensing BWP 3 and sensing BWP 4 and communication BWP 1 in Figure 12, or in other words, sensing BWP 1, sensing BWP 2, sensing BWP 3 and sensing BWP 4 are associated with communication BWP 1.

[0126] In an optional embodiment, the second device further sends fourth indication information to the first device, where the fourth indication information is used to indicate a fourth BWP associated with the first BWP, the fourth BWP being used for communication. The second device sending the fourth indication information includes: the second device sending the fourth indication information to the first device. Thus, the first device receives the fourth indication information from the second device.

[0127] Optionally, the fourth indication information may be carried in downlink control information (DCI), or may be carried in higher-layer signaling, such as radio resource control (RRC) signaling or other information elements.

[0128] The fourth indication information specifically indicates the association between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP, and / or the association between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP. The association between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP can be represented by the time offset between the center time of the first BWP and the center time of the fourth BWP. The association between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP can be represented by the frequency offset between the center frequency of the first BWP and the center frequency of the fourth BWP. The fourth indication information includes the identifier of the first BWP and the identifier of the fourth BWP, as well as at least one of the bandwidth of the fourth BWP, the duration of the fourth BWP's occupation of the time domain resources, and the time offset between the center time of the first BWP and the center time of the fourth BWP, and the frequency offset between the center frequency of the first BWP and the center frequency of the fourth BWP.

[0129] For example, as shown in FIG9 , the center frequency of sensing BWP 1 is f1, the center frequency of communication BWP 1 is f2, the time offset between the center moment t1 of sensing BWP 1 and the center moment t2 of communication BWP 1 is Δt=t1-t2, the frequency offset between the center frequency f1 of sensing BWP 1 and the center frequency f2 of communication BWP 1 is Δf=f1-f2, the bandwidth of sensing BWP 1 is BW1, and the duration that sensing BWP 1 occupies the time domain resource is X. The fourth indication information includes the identifier of sensing BWP 1, the identifier of communication BWP 1, the bandwidth BW1 of sensing BWP 1, the duration X that sensing BWP 1 occupies the time domain resource, the time offset Δt between the center moment of sensing BWP 1 and the center moment of communication BWP 1, and the frequency offset Δf between the center frequency of sensing BWP 1 and the center frequency of communication BWP 1. The first device may determine the configured sensing BWP 1 through the fourth indication information and the configured communication BWP 1. Furthermore, after the second device sends indication information for instructing the first device to activate sensing BWP 1, the first device may directly receive the chirp signal on the sensing BWP 1 determined according to the fourth indication information, or may activate the sensing BWP 1 determined according to the fourth indication information and receive the chirp signal on the sensing BWP 1.

[0130] For example, as shown in Figure 10, the center time of sensing BWP 1 and communication BWP 1 is the same, both at t3. The center frequency of sensing BWP 1 is f3, the center frequency of communication BWP 1 is f4, the frequency offset between the center frequency f3 of sensing BWP 1 and the center frequency f4 of communication BWP 1 is Δf = f3 - f4, the bandwidth of sensing BWP 1 is BW2, and the duration that sensing BWP 1 occupies the time domain resources is Y. The fourth indication information includes the identifier of sensing BWP 1, the identifier of communication BWP 1, the bandwidth of sensing BWP 1 BW1, the duration Y that sensing BWP 1 occupies the time domain resources, and the frequency offset Δf between the center frequency of sensing BWP 1 and the center frequency of communication BWP 1. The first device can determine the configured sensing BWP 1 using the fourth indication information and the configured communication BWP 1. Thus, when the second device sends indication information to the first device for instructing activation of sensing BWP 1, the first device can directly receive the chirp signal on sensing BWP 1 determined according to the fourth indication information, or can activate sensing BWP 1 determined according to the fourth indication information and receive the chirp signal on sensing BWP 1.

[0131] Optionally, the association relationship between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP can be expressed by the time offset between the start time of the first BWP and the start time / end time of the fourth BWP, or can be expressed by the time offset between the end time of the first BWP and the start time / end time of the fourth BWP. The association relationship between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP can be expressed by the frequency offset between the start frequency point of the first BWP and the start frequency point or end frequency point of the fourth BWP, or can be expressed by the frequency offset between the end frequency point of the first BWP and the start frequency point or end frequency point of the fourth BWP. In this manner, the fourth indication information includes the identifier of the first BWP and the identifier of the fourth BWP, as well as at least one of the bandwidth of the fourth BWP, the duration of time occupied by the fourth BWP on time domain resources, the time offset between the start time of the first BWP and the start time / end time of the fourth BWP, the time offset between the end time of the first BWP and the start time / end time of the fourth BWP, the frequency offset between the start frequency of the first BWP and the start frequency or end frequency of the fourth BWP, and the frequency offset between the end frequency of the first BWP and the start frequency or end frequency of the fourth BWP.

[0132] For example, as shown in Figure 11, the starting time of sensing BWP 1 is t3, the starting time of communication BWP 1 is t4, the starting frequency of sensing BWP 1 is f3, and the starting frequency of communication BWP 1 is f4. The time offset between the starting time t3 of sensing BWP 1 and the starting time t4 of communication BWP 1 is Δt = t3 - t4, the frequency offset between the starting frequency f3 of sensing BWP 1 and the starting frequency f4 of communication BWP 1 is Δf = f3 - f4, the bandwidth of sensing BWP 1 is BW2, and the duration that sensing BWP 1 occupies on the time domain resources is Z. The fourth indication information includes the identifier of sensing BWP 1, the identifier of communication BWP 1, the bandwidth BW3 of sensing BWP 1, the duration Z occupied by sensing BWP 1 on the time domain resources, the time offset Δt between the start time of sensing BWP 1 and the start time of communication BWP 1, and the frequency offset Δf between the start frequency point of sensing BWP 1 and the start frequency point of communication BWP 1. The first device can determine the position occupied by sensing BWP 1 on the time domain resources through the time offset Δt between the starting moment of sensing BWP 1 and the starting moment of communication BWP 1, the starting moment of communication BWP 1, and the duration Z occupied by sensing BWP 1 on the time domain resources, and can determine the position occupied by sensing BWP 1 on the frequency domain resources based on the frequency offset Δf between the starting frequency point of sensing BWP 1 and the starting frequency point of communication BWP 1, the starting frequency point of communication BWP 1, and the bandwidth BW3 of sensing BWP 1, that is, the first device can determine sensing BWP 1 based on the fourth indication information and the configured communication BWP 1. Furthermore, after the second device sends indication information to the first device for instructing activation of sensing BWP 1, the first device can directly receive the chirp signal on sensing BWP 1 determined according to the fourth indication information, or can activate sensing BWP 1 determined according to the fourth indication information and receive the chirp signal on sensing BWP 1.

[0133] Optionally, the association relationship between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP can be represented by the time offset between the center moment of the first BWP and the center moment of the fourth BWP. The association relationship between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP can be represented by the frequency offset between the starting frequency of the first BWP and the starting frequency or ending frequency of the fourth BWP, or can be represented by the frequency offset between the ending frequency of the first BWP and the starting frequency or ending frequency of the fourth BWP. In this method, the fourth indication information includes the identifier of the first BWP and the identifier of the fourth BWP, as well as at least one of the duration of the fourth BWP's occupation of the time domain resources, the bandwidth of the fourth BWP, the time offset between the center moment of the first BWP and the center moment of the fourth BWP, the frequency offset between the starting frequency of the first BWP and the starting frequency or ending frequency of the fourth BWP, and the frequency offset between the ending frequency of the first BWP and the starting frequency or ending frequency of the fourth BWP.

[0134] Optionally, the association between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP can be represented by the time offset between the start time of the first BWP and the start time / end time of the fourth BWP, or can be represented by the time offset between the end time of the first BWP and the start time / end time of the fourth BWP. The association between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP can be represented by the frequency offset between the center frequency of the first BWP and the center frequency of the fourth BWP. In this method, the fourth indication information includes the identifier of the first BWP and the identifier of the fourth BWP, as well as at least one of the duration of the fourth BWP's occupation of the time domain resources, the bandwidth of the fourth BWP, the time offset between the start time of the first BWP and the start time / end time of the fourth BWP, the time offset between the end time of the first BWP and the start time / end time of the fourth BWP, and the frequency offset between the center frequency of the first BWP and the center frequency of the fourth BWP.

[0135] In the embodiments of the present application, the manner of expressing the association between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP, as well as the manner of expressing the association between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP, include but are not limited to the above-mentioned embodiments. For example, the association between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP can also be expressed using the time difference between the start time / end time of the first BWP and the center time of the fourth BWP. For another example, the association between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP can also be expressed using the frequency offset between the start frequency / end frequency of the first BWP and the center frequency of the fourth BWP. Optionally, any combination of the above-mentioned manner of expressing the association between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP and the manner of expressing the association between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP can be used.

[0136] Optionally, when the second device indicates the association relationship between the sensing BWP and the communication BWP, it may indicate it in a table. For example, the table used by the second device to indicate the association relationship between the sensing BWP and the communication BWP is Table 1 below. As shown in Table 1, sensing BWP 0 and sensing BWP 1 are both associated with communication BWP 0, sensing BWP 2 is associated with communication BWP 1, and sensing BWP 3 is associated with communication BWP 2.

[0137] Table 1

[0138] As can be seen, the second device indicates to the first device, via the fourth indication information, the fourth BWP associated with the first BWP. Thus, the first device can determine the first BWP based on the configured fourth BWP and the fourth indication information. Furthermore, upon receiving the indication information instructing the activation of the first BWP, the terminal device can receive chirp signals on the first BWP, or activate the first BWP and receive chirp signals on the first BWP. This approach reduces indication overhead compared to an approach where the second device configures the first BWP using the first BWP's configuration information.

[0139] S102: The second device sends a chirp signal on the first BWP. Correspondingly, the first device receives the chirp signal on the first BWP.

[0140] The second device sending the chirp signal on the first BWP includes: the second device sending the chirp signal to the first device on the first BWP, and correspondingly, the first device receiving the chirp signal from the second device on the first BWP.

[0141] It is understandable that the second device configures the first BWP for transmitting the chirp signal to the first device using the configuration information of the first BWP, so that the second device can send the chirp signal to the first device on the first BWP to avoid the first device being unable to correctly receive the chirp signal.

[0142] When the chirp signal received by the first device on the first BWP is a perception signal, the first device further uses the received chirp signal for perception on the first BWP. For example, the first device further perceives surrounding objects on the first BWP to obtain information such as the object's position, speed, distance, direction, shape, or texture. Therefore, if the terminal device receives a perception signal of a chirp signal on the first BWP, the terminal device may apply the received chirp signal to the perception scenario.

[0143] When the chirp signal received by the first device on the first BWP is a WUS, the first device may wake itself up, that is, the first device may switch from a sleep state to an active state. Therefore, if the terminal device receives a WUS signal of a chirp signal on the first BWP, the terminal device may apply the received chirp signal to the wake-up scenario.

[0144] In an optional implementation, before the second device transmits a chirp signal on the first BWP, it transmits first indication information to the first device, where the first indication information indicates activation of the first BWP. Thus, before the first device receives the chirp signal on the first BWP, it also receives the first indication information from the second device. The first indication information includes an identifier of the first BWP. The first indication information may be carried in a DCI, or in higher-layer signaling, such as RRC signaling, or in other information elements.

[0145] It is understandable that after receiving the first indication information, the first device directly receives the chirp signal on the first BWP, or first activates the first BWP and then receives the chirp signal on the first BWP.

[0146] In an optional embodiment, when the first device is a terminal device and the second device is a network device, before the terminal device receives the chirp signal on the first BWP, when the first switching condition is met, it switches from the second BWP to the first BWP, and the second BWP is used for terminal device communication, and the time domain resources occupied by the second BWP are located before the time domain resources occupied by the first BWP.

[0147] The first switching condition is that the terminal device is in an idle state or an inactive state, or the discontinuous reception (DRX) of the terminal device is within a valid time, or the terminal device switches from the first mode to the second mode.

[0148] When a terminal device is in an idle or inactive state, it indicates that the RRC connection of the terminal device has been released (RRC release), which means that the terminal device can enter a sleep state from a working state, thereby allowing the terminal device to switch from a second BWP used for communication to a first BWP used for receiving chirp signals. When the DRX of the terminal device is within the valid time, it indicates that the terminal device is in a sleep state, thereby allowing the terminal device to switch from the second BWP used for communication to the first BWP used for receiving chirp signals. The DRX of the terminal device is connected discontinuous reception (C-DRX). Optionally, the terminal device switches from the second BWP to the first BWP when the DRX of the network device is within the valid time. For example, the terminal device switches from the second BWP to the first BWP when the cell discontinuous reception (cell-DRX) of the base station is within the valid time. Optionally, the terminal device switches from the second BWP to the first BWP when the discontinuous transmission (DTX) of the network device is within the valid time.

[0149] Optionally, when the terminal device receives the wake-up signal, the terminal device is awakened to enter the C-DRX active state, so that the C-DRX of the terminal device is within the valid time, and the terminal device switches from the second BWP to the first BWP.

[0150] In addition, the number of antennas used by the terminal device in the first mode is greater than the number of antennas used in the second mode, and / or the bandwidth used in the first mode is greater than the bandwidth used in the second mode. Therefore, the amount of data supported by the terminal device when communicating in the first mode is greater than the amount of data supported when communicating in the second mode, and the power consumption of the terminal device when communicating in the first mode is higher than the power consumption when communicating in the second mode. Optionally, the first mode may be an enhanced mode, and the second mode may be a default mode.

[0151] Therefore, when the terminal device switches from the first mode to the second mode, it indicates that the terminal device may switch from the working state to the sleeping state, and the terminal device may switch from the second BWP used for communication to the first BWP used for receiving chirp signals.

[0152] To sum up, when the terminal device meets the first switching condition, the terminal device may switch from the working state to the sleeping state, and thus may switch from the second BWP to the first BWP, and receive the chirp signal on the first BWP, which can reduce the power consumption of the terminal device.

[0153] Optionally, when the terminal device is in default mode and releases the terminal device (release UE) connection, the sensing BWP is activated and switched from the second BWP to the first BWP.

[0154] For example, as shown in Figure 8a, a terminal device operates on communication BWP 1. After receiving configuration information for the first BWP and determining that the first BWP is sensing BWP 3, the terminal device switches from communication BWP 1 to sensing BWP 3 when it determines that it is in an idle state to receive chirp signals on sensing BWP 3. This shows that switching to sensing BWP 3 to monitor the WUS after data transmission is complete effectively reduces power consumption.

[0155] In one optional embodiment, the network device further transmits second indication information to the terminal device, where the second indication information is used to indicate a first switching condition for the terminal device to switch from the BWP used for communication to the BWP used for receiving chirp signals. For example, the second information is used to indicate a first switching condition for the terminal device to switch from the second BWP to the first BWP. Accordingly, when the first switching condition is met, the terminal device further receives the second indication information from the network device before switching from the second BWP to the first BWP.

[0156] When the terminal device is in an idle state or an inactive state, or the DRX of the terminal device is within the valid time, or the terminal device switches from the first mode to the second mode, it indicates that the terminal device may enter the sleep state from the working state. Therefore, the network device instructs the terminal device through the second indication information to switch from the BWP used for communication to the BWP used for receiving chirp signals when the first condition is met, so as to prepare for receiving chirp signals in advance.

[0157] Optionally, the second indication information is further used to indicate a first switching delay for the terminal device to switch from a BWP used for communication to a BWP used for receiving chirp signals. For example, the second information is further used to indicate a first switching delay for the terminal device to switch from a second BWP to a first BWP. The first switching delay is the time interval for the terminal device to switch from a BWP used for communication to a BWP used for receiving chirp signals. For example, the first switching delay is the time interval for the terminal device to switch from a BWP used for communication to a BWP used for receiving chirp signals. Optionally, the second indication information may be in a tabular form, i.e., the network device may indicate the first switching delay to the terminal device in a tabular form.

[0158] The second indication information is also used to indicate the first switching delay, which enables the terminal device to switch from the BWP used for communication to the BWP used for receiving chirp signals based on the first switching delay. For example, the terminal device switches from the second BWP to the first BWP based on the first switching delay.

[0159] Optionally, the second indication information is carried in the DCI, or may be carried in higher-layer signaling, such as in RRC signaling, or in other information elements.

[0160] Optionally, the first switching condition and the first switching delay may be pre-negotiated between the network device and the terminal device.

[0161] In an optional embodiment, when the first device is a terminal device, the terminal device switches from the first BWP to a third BWP when a second switching condition is met, the third BWP is used for terminal device communication, and the time domain resources occupied by the third BWP are located after the time domain resources occupied by the first BWP. The second switching condition is that the terminal device receives a wake-up signal, or the terminal device enters a connected state or establishes a radio resource control RRC connection, or the DRX timer of the terminal device times out.

[0162] When the terminal device receives a wake-up signal, or the terminal device enters the connected state or establishes an RRC connection, or the DRX timer of the terminal device times out, it indicates that the terminal device needs to switch from the working state to the sleep state, so that the terminal device can switch from the first BWP for receiving the chirp signal to the third BWP for communication.

[0163] It can be seen that when the second condition is met, the terminal device switches from the first BWP to the third BWP to enter the working state and communicates on the third BWP, such as communicating with the network device on the third BWP.

[0164] For example, as shown in Figure 8a, if the terminal device receives a WUS on sensing BWP 3, it switches from sensing BWP 3 to communication BWP 2 to communicate on communication BWP 2. It can be seen that when sensing BWP 3 receives a WUS, the terminal device wakes itself up and transmits data on communication BWP 3 to ensure communication continuity.

[0165] In an optional embodiment, the network device further transmits third indication information to the terminal device. The third indication information is used to indicate a second switching condition for the terminal device to switch from the BWP used for receiving chirp signals to the BWP used for communication. For example, the third indication information is used to indicate a second switching condition for the terminal device to switch from the first BWP to the third BWP. Accordingly, when the second switching condition is met, the terminal device further receives the third indication information from the network device before switching from the first BWP to the third BWP.

[0166] Optionally, the third indication information is further used to indicate a second switching delay for the terminal device to switch from the BWP for receiving chirp signals to the BWP for communication. For example, the third indication information is further used to indicate a second switching delay for the terminal device to switch from the first BWP to the third BWP. The second switching delay is the time interval for the terminal device to switch from the BWP for receiving chirp signals to the BWP for communication. For example, the second switching delay is the time interval for the terminal device to switch from the first BWP to the third BWP. For example, the second switching delay is the time interval for the terminal device to switch from the first BWP to the third BWP in Figure 8a. Optionally, the third indication information may be in a tabular form, that is, the network device may indicate the second switching delay to the terminal device in a tabular form.

[0167] The third indication information is further used to indicate a second switching delay, which may cause the terminal device to switch from the BWP used for receiving chirp signals to the BWP used for communication based on the second switching delay. For example, the terminal device switches from the first BWP to the third BWP based on the second switching delay.

[0168] Optionally, the third indication information may be carried in the DCI, or carried in higher-layer signaling, such as in RRC signaling, or carried in other information elements.

[0169] Optionally, the second switching condition and the second switching delay may be pre-negotiated between the network device and the terminal device.

[0170] As can be seen, the terminal device can switch from a BWP used for communication, whose time domain resources are located before the BWP used for receiving chirp signals, to a BWP used for receiving chirp signals, or it can switch from a BWP used for receiving chirp signals to a BWP used for communication, whose time domain resources are located after the BWP used for receiving chirp signals. For example, Figure 13 is a schematic diagram of BWP switching, where the BWP used by the terminal device to receive chirp signals is the sensing BWP, and the BWP used by the terminal device for communication is the communication BWP. The terminal device can switch between the sensing BWP and the communication BWP as shown in Figure 13.

[0171] In an optional implementation, when the chirp signal received by the terminal device is a perception signal, the terminal device may further utilize a fifth BWP for communication, where the frequency band occupied by the fifth BWP is lower than the frequency band occupied by the first BWP. The frequency band occupied by the fifth BWP is lower than the frequency band occupied by the first BWP, which can be understood as: the highest frequency point of the frequency band occupied by the fifth BWP is lower than the lowest frequency point of the frequency band occupied by the first BWP.

[0172] It can be seen that the terminal device receives the perception signal on the first BWP in the high frequency band and, when performing the perception service, can also communicate on the fifth BWP in the frequency band lower than the first BWP, thereby realizing the integration of communication and perception.

[0173] For example, as shown in FIG8a , the highest frequency point of the frequency band occupied by communication BWP 1 is frequency point A, and the lowest frequency point of the frequency band occupied by sensing BWP 2 is frequency point B, which is higher than frequency point A. The terminal device receives the sensing signal and performs sensing on sensing BWP 2, and communicates on communication BWP 1.

[0174] Optionally, the network device indicates to the terminal device that it can sense in the high frequency band and communicate in the low frequency band by using a first active BWP parameter.

[0175] In an embodiment of the present application, a second device sends configuration information of a first BWP to a first device. The configuration information of the first BWP is used to configure the bandwidth, linear frequency variation value, and at least one of the initial frequency and the operating frequency for transmitting a chirp signal. Thus, the first device receives the chirp signal on the configured first BWP, which facilitates the first device to utilize the chirp signal, for example, using the chirp signal for sensing or waking up the first device based on the chirp signal.

[0176] With respect to the technical solutions described above, the corresponding device implementation solutions are further described below.

[0177] To implement the various functions of the methods provided in the embodiments of the present application, the first device and the second device may include hardware structures and / or software modules, and implement the aforementioned functions in the form of hardware structures, software modules, or a combination of hardware structures and software modules. Whether a particular one of the aforementioned functions is implemented in the form of hardware structures, software modules, or a combination of hardware structures and software modules depends on the specific application and design constraints of the technical solution.

[0178] As shown in Figure 14, an embodiment of the present application provides a communication device 1400. The communication device 1400 can be a component of a first device (e.g., an integrated circuit, a chip, etc.), or a component of a second device (e.g., an integrated circuit, a chip, etc.). The communication device 1400 can also be other communication units for implementing the method in the method embodiment of the present application. The communication device 1400 may include: a communication unit 1401 and a processing unit 1402. Optionally, a storage unit 1403 may also be included.

[0179] In one possible design, one or more units in FIG14 may be implemented by one or more processors, or by one or more processors and memories, or by one or more processors and transceivers, or by one or more processors, memories, and transceivers, which are not limited in this embodiment of the present application. The processors, memories, and transceivers may be provided separately or integrated.

[0180] The communication device 1400 is capable of implementing the functions of the first device or the second device described in the embodiments of the present application. For example, the communication device 1400 includes a reader / writer that executes the modules, units, or means corresponding to the steps involved in the first device in the above-mentioned method embodiments. The functions, units, or means can be implemented through software, or through hardware, or can be implemented by hardware executing the corresponding software implementation, or can be implemented through a combination of software and hardware. For details, please refer to the corresponding description in the above-mentioned corresponding method embodiments.

[0181] In one possible design, a communication apparatus 1400 may include: a processing unit 1402 and a communication unit 1401, wherein the apparatus is applied to a first device, and the processing unit 1402 is configured to process a signal / signaling;

[0182] The communication unit 1401 is configured to receive configuration information of a first bandwidth part BWP, where the configuration information of the first BWP is used to configure a bandwidth, a linear frequency change value, and at least one of an initial frequency and an operating frequency for transmitting a chirp signal;

[0183] The communication unit 1401 is further configured to receive the chirp signal on the first BWP.

[0184] In an optional implementation manner, the configuration information of the first BWP is further used to configure a time domain repetition transmission interval of the chirp signal.

[0185] In an optional implementation, the chirp signal is a perception signal or a wake-up signal.

[0186] In an optional implementation, before receiving the chirp signal on the first BWP, the communication unit 1401 is further configured to: receive first indication information, where the first indication information is used to indicate activation of the first BWP.

[0187] In an optional embodiment, before the communication unit 1401 receives the chirp signal on the first BWP, the processing unit 1402 is used to: switch from the second BWP to the first BWP when a first switching condition is met, and the second BWP is used for terminal device communication; the first switching condition is that the terminal device is in an idle state or an inactive state, or the discontinuous reception DRX of the terminal device is within a valid time, or the terminal device switches from a first mode to a second mode; wherein the number of antennas used by the terminal device in the first mode is greater than the number of antennas used in the second mode, and / or the bandwidth used in the first mode is greater than the bandwidth used in the second mode.

[0188] In an optional implementation, when the first switching condition is met, the processing unit 1402 further receives second indication information before switching from the second BWP to the first BWP, where the second indication information is used to indicate the first switching condition.

[0189] In an optional implementation, the second indication information is further used to indicate a first switching delay, where the first switching delay is a time interval for the terminal device to switch from the second BWP to the first BWP.

[0190] In an optional embodiment, the processing unit 1402 is also used to switch from the first BWP to a third BWP when a second switching condition is met, and the third BWP is used for terminal device communication; the second switching condition is that the terminal device receives a wake-up signal, or the terminal device enters a connected state or establishes a radio resource control RRC connection, or the DRX timer of the terminal device times out.

[0191] In an optional implementation, when the second switching condition is met, before switching from the first BWP to the third BWP, the processing unit 1402 is further configured to receive third indication information, where the third indication information is used to indicate the second switching condition.

[0192] In an optional implementation, the third indication information is further used to indicate a second switching delay, where the second switching delay is a time interval for the terminal device to switch from the first BWP to the third BWP.

[0193] In an optional implementation, the communication unit 1401 is further configured to receive fourth indication information, where the fourth indication information is used to indicate a fourth BWP associated with the first BWP, and the fourth BWP is used for communication.

[0194] In an optional implementation, at least one of the following is carried in downlink control information DCI or RRC signaling: the first indication information, the second indication information, the third indication information, or the fourth indication information.

[0195] In an optional implementation, the configuration information of the first BWP further includes coding information, and the coding information is used to perform phase coding on the chirp signal.

[0196] In an optional implementation, the chirp signal is a perception signal, and the processing unit 1402 is further configured to use a fifth BWP for communication, where a frequency band occupied by the fifth BWP is lower than a frequency band occupied by the first BWP.

[0197] The embodiments of the present application and the above-mentioned method embodiments are based on the same concept, and the technical effects they bring are also the same. For the specific principles, please refer to the description of the above-mentioned embodiments, which will not be repeated here.

[0198] In another possible design, communication apparatus 1400 may include: a processing unit 1402 and a communication unit 1401, wherein the apparatus is applied to a second device, and the processing unit 1402 is configured to process the signal / signaling;

[0199] The communication unit 1401 is used to send configuration information of the first BWP, where the configuration information of the first BWP is used to configure the bandwidth, frequency linear change value, and at least one of the initial frequency and the operating frequency of the transmitted chirp signal; the configuration information of the first BWP is used to receive the chirp signal.

[0200] In an optional implementation manner, the configuration information of the first BWP is further used to configure a time domain repetition transmission interval of the chirp signal.

[0201] In an optional implementation, the chirp signal is a perception signal or a wake-up signal.

[0202] In an optional implementation, the communication unit 1401 is further configured to send first indication information, where the first indication information is used to indicate activation of the first BWP.

[0203] In an optional embodiment, the communication unit 1401 is also used to send a second indication information, wherein the second indication information is used to indicate a first switching condition for the terminal device to switch from the second BWP to the first BWP, and the second BWP is used for communication with the terminal device; the first switching condition is that the terminal device is in an idle state or an inactive state, or the discontinuous reception DRX of the terminal device is within a valid time, or the terminal device switches from the first mode to the second mode; wherein the number of antennas used by the terminal device in the first mode is greater than the number of antennas used in the second mode, and / or the bandwidth used in the first mode is greater than the bandwidth used in the second mode.

[0204] In an optional implementation, the second indication information is further used to indicate a first switching delay for the terminal device to switch from the second BWP to the first BWP.

[0205] In an optional embodiment, the communication unit 1401 is also used to send a third indication information, wherein the third indication information is used to indicate a second switching condition for the terminal device to switch from the first BWP to the third BWP, and the third BWP is used for communication with the terminal device; the second switching condition is that the terminal device receives a wake-up signal, or the terminal device enters a connected state or establishes a radio resource control RRC connection, or the DRX timer of the terminal device times out.

[0206] In an optional implementation, the third indication information is further used to indicate a second switching delay for the terminal device to switch from the first BWP to the third BWP.

[0207] In an optional implementation, the communication unit 1401 is further configured to send fourth indication information, where the fourth indication information is used to indicate a fourth BWP associated with the first BWP, and the fourth BWP is used for communication.

[0208] In an optional implementation, at least one of the following is carried in downlink control information DCI or RRC signaling: the first indication information, the second indication information, the third indication information, or the fourth indication information.

[0209] In an optional implementation, the configuration information of the first BWP further includes coding information, and the coding information is used to perform phase coding on the chirp signal.

[0210] The embodiments of the present application and the above-mentioned method embodiments are based on the same concept, and the technical effects they bring are also the same. For the specific principles, please refer to the description of the above-mentioned embodiments, which will not be repeated here.

[0211] The present application also provides a communication device 1500. Figure 15 is a schematic diagram of the structure of communication device 1500. Communication device 1500 can be a first device, or a chip, chip system, or processor that supports the first device in implementing the above-mentioned method; or it can be a second device, or a chip, chip system, or processor that supports the second device in implementing the above-mentioned method. This device can be used to implement the method described in the above-mentioned method embodiment. For details, please refer to the description of the above-mentioned method embodiment.

[0212] The communication device 1500 may include one or more processors 1501. The processor 1501 may be a general-purpose processor or a dedicated processor. For example, it may be a baseband processor, a digital signal processor, an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, or a central processing unit (CPU). The baseband processor may be used to process communication protocols and communication data, and the central processing unit may be used to control a communication device (e.g., a base station, a baseband chip, a terminal, a terminal chip, a distributed unit (DU) or a centralized unit (CU), etc.), execute software programs, and process data of the software programs.

[0213] Optionally, the communication device 1500 may include one or more memories 1502, on which instructions 1504 may be stored. The instructions may be executed on the processor 1501, causing the communication device 1500 to perform the method described in the above method embodiment. Optionally, the memory 1502 may also store data. The processor 1501 and memory 1502 may be provided separately or integrated together.

[0214] Optionally, the communication device 1500 may further include a transceiver 1505 and an antenna 1506. The transceiver 1505 may be referred to as a transceiver unit, a transceiver, or a transceiver circuit, etc., and is configured to implement transceiver functions. The transceiver 1505 may include a receiver and a transmitter. The receiver may be referred to as a receiver or a receiving circuit, etc., and is configured to implement a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., and is configured to implement a transmitting function.

[0215] In one possible design, the communication apparatus 1500 may be applied to a first device. Specifically, the transceiver 1505 is used to execute S101 and S102 in the above-mentioned communication method 100.

[0216] In another possible design, the communication apparatus 1500 may be applied to a second device. Specifically, the transceiver 1505 is configured to execute S101 and S102 in the communication method 100 .

[0217] Optionally, the processor 1501 may store an instruction 1503. The instruction 1503 runs on the processor 1501, which may enable the communication device 1500 to perform the method described in the above method embodiment. The instruction 1503 may be fixed in the processor 1501. In this case, the processor 1501 may be implemented by hardware.

[0218] The embodiment of the present application and the method embodiment shown in the above-mentioned communication method 100 are based on the same concept, and the technical effects they bring are also the same. For the specific principles, please refer to the description of the embodiment shown in the above-mentioned communication method 100, and no further details will be given.

[0219] The embodiment of the present application further provides a communication system, which may include a terminal device and a network device. In another possible design, the system may also include other devices / functional network elements that interact with the terminal device and the network device.

[0220] An embodiment of the present application further provides a computer-readable storage medium for storing computer software instructions, which, when executed by a communication device, implements the functions of any of the above method embodiments.

[0221] An embodiment of the present application also provides a computer program product for storing computer software instructions, which, when executed by a communication device, implements the functions of any of the above method embodiments.

[0222] The embodiments of the present application also provide a computer program that, when executed on a computer, implements the functions of any of the above method embodiments.

[0223] The terms "first" and "second" in the description, claims and drawings of the embodiments of this application are used to distinguish different objects, rather than to describe a specific order. "First", "second" and the like are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first", "second" and the like may explicitly or implicitly include one or more of the features. In the description of this embodiment, unless otherwise specified, "multiple" means two or more.

[0224] Furthermore, the terms "include," "comprise," and "have," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0225] Reference to an "embodiment" in the embodiments of this application means that a particular feature, structure, or characteristic described in conjunction with the embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it mean that each embodiment is mutually exclusive of another embodiment or an alternative embodiment. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0226] In the embodiments of the present application, "at least one (item)" refers to one or more, "more than one" refers to two or more, and "and / or" is used to describe the association relationship of associated objects, indicating that three relationships may exist. For example, "A and / or B" can represent: only A exists, only B exists, and A and B exist at the same time, where A and B can be singular or plural. The character " / " generally indicates that the previous and next associated objects are in an "or" relationship. "At least one of the following items" or similar expressions refers to any combination of these items, including any combination of single items or plural items. For example, at least one of a, b or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, c can be single or multiple.

[0227] In the embodiments of this application, words such as "exemplary" or "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of this application should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "exemplary" or "for example" is intended to present the relevant concepts in a concrete manner to facilitate understanding.

[0228] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware, or any combination thereof. When implemented using software, all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via a wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) method. The computer-readable storage medium may be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrated therein. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a high-density digital video disc (DVD)), or a semiconductor medium (eg, an SSD).

[0229] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A communication method, characterized in that: The method comprises: receiving configuration information of a first bandwidth part BWP, where the configuration information of the first BWP is used to configure a bandwidth, a linear frequency change value, and at least one of an initial frequency point and an operating frequency point for transmitting a chirp signal; The chirp signal is received on the first BWP.

2. The method according to claim 1, characterized in that The configuration information of the first BWP is also used to configure the time domain repetitive transmission interval of the chirp signal.

3. The method according to claim 1 or 2, characterized in that: The chirp signal is a perception signal or a wake-up signal.

4. The method according to any one of claims 1 to 3, characterized in that: Prior to receiving the chirp signal on the first BWP, the method further comprises: First indication information is received, where the first indication information is used to indicate activation of the first BWP.

5. The method according to any one of claims 1 to 3, characterized in that: Prior to receiving the chirp signal on the first BWP, the method further comprises: When a first switching condition is met, switching from the second BWP to the first BWP, where the second BWP is used for terminal device communication; The first switching condition is that the terminal device is in an idle state or an inactive state, or the discontinuous reception DRX of the terminal device is within a valid time, or the terminal device switches from the first mode to the second mode; The number of antennas used by the terminal device in the first mode is greater than the number of antennas used in the second mode, and / or the bandwidth used in the first mode is greater than the bandwidth used in the second mode.

6. The method according to claim 5, characterized in that When the first switching condition is met, before switching from the second BWP to the first BWP, the method further includes: Second indication information is received, where the second indication information is used to indicate the first switching condition.

7. The method according to claim 6, characterized in that The second indication information is also used to indicate a first switching delay, where the first switching delay is a time interval for the terminal device to switch from the second BWP to the first BWP.

8. The method according to any one of claims 1 to 7, characterized in that: The method further comprises: When a second switching condition is met, switching from the first BWP to a third BWP, the third BWP being used for terminal device communication; The second switching condition is that the terminal device receives a wake-up signal, or the terminal device enters a connected state or establishes a radio resource control RRC connection, or the DRX timer of the terminal device times out.

9. The method according to claim 8, characterized in that When the second switching condition is met, before switching from the first BWP to the third BWP, the method further includes: Receive third indication information, where the third indication information is used to indicate the second switching condition.

10. The method according to claim 9, characterized in that The third indication information is also used to indicate a second switching delay, where the second switching delay is a time interval for the terminal device to switch from the first BWP to the third BWP.

11. The method according to claim 4, characterized in that Before receiving the first indication information, the method further includes: Fourth indication information is received, where the fourth indication information is used to indicate a fourth BWP associated with the first BWP, and the fourth BWP is used for communication.

12. The method according to any one of claims 4, 6, 7, 9, 10 and 11, characterized in that: At least one of the following is carried in downlink control information DCI or RRC signaling: the first indication information, the second indication information, the third indication information, or the fourth indication information.

13. The method according to any one of claims 1 to 12, characterized in that: The configuration information of the first BWP further includes coding information, and the coding information is used to perform phase coding on the chirp signal.

14. The method according to any one of claims 1 to 13, characterized in that: The chirp signal is a perception signal, and the method further includes: A fifth BWP is used for communication, and a frequency band occupied by the fifth BWP is lower than a frequency band occupied by the first BWP.

15. A communication method, characterized in that: The method comprises: Sending configuration information of a first BWP, where the configuration information of the first BWP is used to configure a bandwidth, a linear frequency change value, and at least one of an initial frequency and an operating frequency for transmitting a chirp signal; The configuration information of the first BWP is used to receive the chirp signal.

16. The method according to claim 15, characterized in that The configuration information of the first BWP is also used to configure the time domain repetitive transmission interval of the chirp signal.

17. The method according to claim 15 or 16, characterized in that The chirp signal is a perception signal or a wake-up signal.

18. The method according to any one of claims 15 to 17, characterized in that The method further comprises: Sending first indication information, where the first indication information is used to indicate activation of the first BWP.

19. The method according to any one of claims 15 to 18, characterized in that The method further comprises: Sending second indication information, where the second indication information is used to indicate a first switching condition for a terminal device to switch from a second BWP to the first BWP, where the second BWP is used for communication with the terminal device; The first switching condition is that the terminal device is in an idle state or an inactive state, or the discontinuous reception DRX of the terminal device is within a valid time, or the terminal device switches from the first mode to the second mode; The number of antennas used by the terminal device in the first mode is greater than the number of antennas used in the second mode, and / or the bandwidth used in the first mode is greater than the bandwidth used in the second mode.

20. The method according to claim 19, characterized in that The second indication information is also used to indicate a first switching delay for the terminal device to switch from the second BWP to the first BWP.

21. The method according to any one of claims 15 to 20, characterized in that The method further comprises: Sending third indication information, where the third indication information is used to indicate a second switching condition for the terminal device to switch from the first BWP to a third BWP, where the third BWP is used for communication by the terminal device; The second switching condition is that the terminal device receives a wake-up signal, or the terminal device enters a connected state or establishes a radio resource control RRC connection, or the DRX timer of the terminal device times out.

22. The method according to claim 21, characterized in that The third indication information is also used to indicate a second switching delay for the terminal device to switch from the first BWP to the third BWP.

23. The method according to claim 18, characterized in that Before sending the first indication information, the method further includes: Fourth indication information is sent, where the fourth indication information is used to indicate a fourth BWP associated with the first BWP, and the fourth BWP is used for communication.

24. The method according to any one of claims 18 to 23, characterized in that At least one of the following is carried in downlink control information DCI or RRC signaling: the first indication information, the second indication information, the third indication information, or the fourth indication information.

25. The method according to any one of claims 18 to 24, characterized in that The configuration information of the first BWP further includes coding information, and the coding information is used to perform phase coding on the chirp signal.

26. A communication device, characterized in that: The communication device comprises a module for executing the method according to any one of claims 1 to 14, or comprises a module for executing the method according to any one of claims 15 to 25.

27. A communication device, characterized in that: The communication device comprises a processor, wherein the processor is configured to execute the method according to any one of claims 1 to 14, or configured to execute the method according to any one of claims 15 to 25.

28. A communication system, characterized in that: include: An apparatus for executing the method according to any one of claims 1 to 14, and an apparatus for executing the method according to any one of claims 15 to 25.

29. A computer-readable storage medium, characterized in that: The computer-readable storage medium is used to store instructions, and when the instructions are executed on a computer, the method according to any one of claims 1 to 14 is executed, or the method according to any one of claims 15 to 25 is executed.

30. A computer program product comprising instructions, characterized in that When the method is executed on a computer, the method according to any one of claims 1 to 14 is executed, or the method according to any one of claims 15 to 25 is executed.

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