Communication method and device

Abstract

A communication method and apparatus, the method comprising: a second device sending configuration information of a first bandwidth part (BWP), the configuration information of the first BWP being used for configuring at least one of a bandwidth, a frequency linear change value, an initial frequency point and a working frequency point of a transmission chirp signal; the first device receives configuration information of the first BWP; the first device receives a chirp signal on the first BWP. Visibly, the first device can receive the chirp signal by using the configured first BWP, thereby facilitating the first device to apply the chirp signal.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a communication method and device. Background Art

[0002] Chirp signal is a signal whose frequency changes (increases or decreases) over time. Chirp signal is often used as a linear modulation signal to obtain a larger system processing gain.

[0003] In addition, Chirp signals can carry a small amount of information and can be used as wake-up signals (WUS), which are used to restore the device from standby / sleep state to working state. Chirp signals can also be used as radar and sonar perception signals, which can be sensed by RF / non-RF methods, including position, speed, distance, direction, shape, or texture.

[0004] However, how to receive Chirp signals remains a problem to be solved. Summary of the invention

[0005] 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.

[0006] In a first aspect, an embodiment of the present application provides a communication method, which can be performed by a first device, where the first device can refer to the first device itself, or a processor, module, chip, or chip system that implements the method in the first device. In the method, the first device receives configuration information of a first bandwidth part BWP, where the configuration information of the first BWP is used to configure the bandwidth, linear frequency change value, and at least one of the initial frequency and the working frequency of a transmission chirp signal; the first device receives the chirp signal on the first BWP.

[0007] It can be seen that in the embodiment of the present application, the first device can use the configured first BWP to achieve reception of 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.

[0008] In an optional implementation, the configuration information of the first BWP is also used to configure the time domain repetition transmission interval of the chirp signal. The time domain repetition transmission 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 transmission interval of the chirp signal.

[0009] In an optional implementation, 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 the perception scenario, that is, 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 the wake-up scenario and wake up the first device based on the received chirp signal.

[0010] In an optional implementation, before the first device receives the chirp signal on the first BWP, it also receives first indication information, and the first indication information is used to indicate activation of the first BWP. Thus, after the first device receives the first indication information, it receives the chirp signal on the first BWP; or, after the first device receives the first indication information, it activates the first BWP and receives the chirp signal on the first BWP.

[0011] In an optional implementation, the first device is a terminal device, and before the terminal device receives the chirp signal on the first BWP, it switches from the second BWP to the first BWP when the 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 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.

[0012] It can be seen that 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 the chirp signal, and then receiving the chirp signal on the first BWP. This method can save power consumption of the terminal device.

[0013] In an optional implementation, before the terminal device switches from the second BWP to the first BWP, it also receives second indication information, and 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 the chirp signal, 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.

[0014] 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 the 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.

[0015] In an optional implementation, 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 a BWP for communication to a BWP for receiving chirp signals. For example, the second switching delay is the time interval for the terminal device to switch from the second BWP to the first BWP.

[0016] In an optional implementation, the first device is a terminal device, and the terminal device can also 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.

[0017] It can be seen that when the second switching condition is met, the terminal device may switch from the sleep state to the working state, so that the terminal device can switch from the first BWP for receiving the chirp signal to the third BWP for communication, and then communicate on the third BWP. This method can ensure the continuity of the terminal device communication.

[0018] In an optional implementation, before the terminal device switches from the first BWP to the third BWP when the second switching condition is met, the terminal device also receives third indication information, and 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.

[0019] 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.

[0020] In an optional implementation, 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.

[0021] 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 enables the first device to learn the fourth BWP associated with the first BWP.

[0022] In an optional implementation manner, 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.

[0023] 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 is conducive to the first device performing phase decoding on the chirp signal based on the coding information.

[0024] In an optional implementation, when the chirp signal is a perception signal, the first device also uses a fifth BWP for communication, and 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.

[0025] 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.

[0026] In a second aspect, an embodiment of the present application provides a communication method, which can be executed by a second device, where the second device can refer to the second device itself, or a processor, module, chip, or chip system that implements the method in the second device. In the method, the second device sends configuration information of a first BWP, and the configuration information of the first BWP is used to configure the bandwidth, linear frequency change value, and at least one of the initial frequency and the working frequency of the transmission chirp signal. The configuration information of the first BWP is used to receive the chirp signal.

[0027] It can be seen that in the embodiment of the present application, the second device is configured with a first BWP for receiving a 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.

[0028] In an optional implementation, the configuration information of the first BWP is also used to configure the time domain repetition transmission interval of the chirp signal. The time domain repetition transmission interval of the chirp signal refers to the interval at which the chirp signal is repeatedly transmitted on the time domain resource. This method is conducive to the first device to repeatedly receive the chirp signal on the time domain resource based on the time domain repetition transmission interval of the chirp signal.

[0029] In an alternative embodiment, the chirp signal is a sensing signal or a wake-up signal. When the chirp signal is a sensing signal, it is beneficial for the first device to apply the received chirp signal to the sensing scenario, that is, it is beneficial for the first device to perform sensing using the received chirp signal. When the chirp signal is a wake-up signal, it is beneficial for the first device to apply the received chirp signal to the wake-up scenario, that is, it is beneficial for the first device to wake up based on the received chirp signal.

[0030] In an alternative embodiment, the second device may further send first indication information, where the first indication information is used to indicate the activation of the first BWP. This approach is beneficial for the first device to receive the chirp signal on the first BWP after receiving the first indication information; or, it is beneficial for the first device to activate the first BWP after receiving the first indication information and receive the chirp signal on the first BWP.

[0031] In an alternative embodiment, the second device further sends second indication information, where the second indication information is used to indicate that the terminal device switches from the BWP for communication to the BWP for receiving the chirp signal. 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, and the second BWP is used for the terminal device to communicate. Among them, the first switching condition is that the terminal device is in the idle state or the non-active state, or the discontinuous reception (DRX) of the terminal device is within the effective 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.

[0032] The method of the second device sending the second indication information is beneficial for the first device to switch from the BWP for communication to the BWP for receiving the chirp signal when the second switching condition is met, for example, to switch from the second BWP to the first BWP.

[0033] In an alternative embodiment, the second indication information is further used to indicate the first switching delay for the terminal device to switch from the BWP for communication to the BWP 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.

[0034] In an optional implementation, the second device also sends a third indication information, and the third indication information 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 information 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.

[0035] The manner in which the second device sends the third indication information is conducive to the terminal device switching from the BWP for receiving the chirp signal to the BWP for communication when the second switching condition is met, for example, switching from the first BWP to the third BWP.

[0036] In an optional implementation, the third indication information is also 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 also 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.

[0037] In an optional implementation, the second device further sends fourth indication information, 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 method is conducive to the second device subsequently indicating the activated BWP to the first device based on the association relationship between the first BWP and the fourth BWP, thereby reducing indication overhead.

[0038] In an optional implementation manner, 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.

[0039] In an optional implementation manner, 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 is conducive to the first device decoding the chirp signal based on the coding information.

[0040] 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 implements some or all of the functions of the second device described in the second aspect above. For example, the function 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 separately. 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.

[0041] In a possible design, the structure of the communication device may include a processing unit and a communication unit, and the processing unit is configured to support the communication device to perform the corresponding functions in the above method. The communication unit is used to support communication between the communication device and other communication devices. The communication device may also include a storage unit, which is used to couple with the processing unit and the communication unit, and store the necessary program instructions and data of the communication device.

[0042] In one implementation, the communication device includes: a processing unit and a communication unit, the device is applied to a first device, and the processing unit is used to process the signal / signaling;

[0043] The communication unit is used 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;

[0044] The communication unit is further configured to receive the chirp signal on the first BWP.

[0045] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the first aspect mentioned above and will not be described in detail here.

[0046] In another embodiment, the communication device comprises: a processing unit and a communication unit, the device is applied to a second device, and the processing unit is used to process the signal / signaling;

[0047] The communication unit is used to send configuration information of a first BWP, wherein the configuration information of the first BWP is used to configure the bandwidth, frequency linear change value, and at least one of an initial frequency and an operating frequency of a transmission chirp signal; the configuration information of the first BWP is used to receive the chirp signal.

[0048] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the first aspect mentioned above and will not be described in detail here.

[0049] 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.

[0050] In one implementation, the communication device includes: a processor and a transceiver, the device is applied to a first device, and the processor is used to process a signal / signaling;

[0051] The transceiver is used 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 of a transmission chirp signal;

[0052] The transceiver is further configured to receive the chirp signal on the first BWP.

[0053] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the first aspect mentioned above and will not be described in detail here.

[0054] In another embodiment, the communication device includes: a processor and a transceiver, the device is applied to the second device, and the processor is used to process the signal / signaling;

[0055] The transceiver is used to send configuration information of a first BWP, wherein the configuration information of the first BWP is used to configure the bandwidth, frequency linear change value, and at least one of an initial frequency and an operating frequency of a transmission chirp signal; the configuration information of the first BWP is used to receive the chirp signal.

[0056] In addition, in this aspect, other optional implementations of the communication device can refer to the relevant content of the above-mentioned second aspect and will not be described in detail here.

[0057] 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; the communication unit may be an input / output interface, an interface circuit, an output circuit, an input circuit, a pin or a related circuit on the chip or the chip system.

[0058] During the implementation process, 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. The above-mentioned devices can be respectively arranged on chips independent of each other, or at least partially or completely arranged on the same chip. For example, the processor can be further divided into an analog baseband processor and a digital baseband processor. Among them, the analog baseband processor can be integrated with the transceiver on the same chip, and the digital baseband processor can be arranged on an independent 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 a variety of 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 (system on a chip, SoC). Whether each device is independently arranged on different chips or integrated on one or more chips often depends on the needs of product design. The embodiment of the present application does not limit the implementation form of the above-mentioned devices.

[0059] In a fourth aspect, an embodiment of the present application further provides a processor for executing the above-mentioned various methods. 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 method 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 it can be transmitted by the transceiver. After the above-mentioned information is output by the processor, it may also need to be processed in other ways before it reaches 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 be processed in other ways before it is input into the processor.

[0060] For the sending and receiving operations involved in the processor, unless otherwise specified, or unless they conflict with their actual function or internal logic in the relevant description, they can be more generally understood as processor output, reception, input and other operations, rather than sending and receiving operations performed directly by the RF circuit and antenna.

[0061] In the implementation process, the processor may be a processor specifically used to execute these methods, or 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 may be separately arranged on different chips. The embodiment of the present application does not limit the type of memory and the arrangement of the memory and the processor.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] 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 a first device to implement the function involved in the first aspect, or to implement or support a second device to implement the function involved in the second aspect. For example, determine or process 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, and can also include chips and other discrete devices.

[0066] 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 a method in each possible implementation of the first aspect or the second aspect.

[0067] In one possible implementation, the processor and the memory are integrated together;

[0068] In another possible implementation, the memory is located outside the communication device.

[0069] 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

[0070] Figure 1 It is a schematic diagram of a system architecture;

[0071] Figure 2 It is a schematic diagram of the system architecture of an independent network;

[0072] Figure 3 It is a schematic diagram of the system architecture for macro and micro scenarios;

[0073] Figure 4 It is a schematic diagram of the time domain response and frequency domain response of a chirp signal;

[0074] Figure 5 It is an interactive schematic diagram of a communication method provided in an embodiment of the present application;

[0075] Figure 6 is a schematic diagram of a chirp signal provided in an embodiment of the present application;

[0076] Figure 7 This is a schematic diagram of coding information provided by an embodiment of the present application;

[0077] Figure 8a It is a schematic diagram of a BWP provided in an embodiment of the present application;

[0078] Figure 8b is another BWP schematic diagram provided in an embodiment of the present application;

[0079] Fig. 9 It is another BWP schematic diagram provided in the embodiment of the present application;

[0080] Fig.10 It is another BWP schematic diagram provided in the embodiment of the present application;

[0081] Fig.11 It is another BWP schematic diagram provided in the embodiment of the present application;

[0082] Fig.12 It is another BWP schematic diagram provided in the embodiment of the present application;

[0083] Fig.13 This is a BWP switching schematic diagram provided in an embodiment of the present application;

[0084] Fig.14 is a structural diagram of a communication device provided in an embodiment of the present application;

[0085] Fig.15 It is a structural diagram of another communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0086] The technical solutions in the embodiments of the present application are clearly and completely described below in conjunction with the drawings in the embodiments of the present application.

[0087] In order to better understand the embodiments of the present application, the system architecture involved in the embodiments of the present application is first introduced below:

[0088] The embodiments of the present application can be applied to long term evolution (LTE) systems, fifth generation (5G) mobile communication systems, sixth generation (6G) mobile communication systems and other systems evolved after 5G, satellite communications and short-range wireless communication systems. The system architecture is as follows: Figure 1 As shown. 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 multiple terminal devices communicating with each other.

[0089] The communication scenarios to which the embodiments of the present application are applicable include but are not limited to ground 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.

[0090] 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 (broadband network gateway, BNG), an aggregation switch or a non-third generation partnership project (3rd 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 called small stations), relay stations, access points, devices that realize base station functions in the future, access points (AP) in wireless fidelity (WiFi) systems, transmission and receiving points (TRP), transmitting points (TP), mobile switching centers, and devices to devices (D2D), V2X, and machine-to-machine (M2M) communications that perform base station functions, devices that realize base station functions in communication systems that evolve after 5G, IABs, and may also include centralized units (CU) and distributed units (DU) in cloud 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 can also be various types of devices that constitute access nodes, such as active antenna processing units (AAU), baseband units (BBU), etc., which are not specifically limited in the embodiments of the present application.

[0091] 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 network core network (CN). As a bearer network, the core network provides an interface to the data network, provides communication connection, authentication, management, policy control, and data service bearing for the terminal.

[0092] 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 functions. 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) computer, tablet computer, wireless modem, handheld device (handset), laptop computer, smart point of sale (POS) machine, 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 equipment, augmented reality (AR) terminal equipment, 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 terminal in the city, the wireless terminal in the smart home, or the terminal equipment in the future communication network.

[0093] 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.

[0094] 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 , Figure 2 This is a schematic diagram of an independent networking system architecture. Specifically, Figure 2 Schematic diagram of the SA system architecture in a 6G mobile communication system. Figure 2 As shown, the terminal device is connected to the 6G base station, and the 6G base station is directly connected to the 6G core.

[0095] The embodiments of the present application can also be applied to macro and micro scenarios. Macro and micro scenarios refer to: in network deployment, macro stations provide wide coverage, and some small stations will be deployed within the coverage of the macro stations. For example, in hot spots covered by macro stations, such as office areas, stadiums, shopping malls, etc., due to the large number of users and traffic, some small stations will be deployed accordingly to ensure user experience. Figure 3 , Figure 3 This is a schematic diagram of the system architecture in a macro and micro scenario. Figure 3 As shown, the base station provides wide coverage. 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 for terminal devices near the sites.

[0096] The embodiments disclosed in this application will present various aspects, embodiments or features of the application around a system including multiple devices, components, modules, etc. It should be understood and appreciated that each system may include additional devices, components, modules, etc., and / or may not include all devices, components, modules, etc. discussed in conjunction with the drawings. In addition, combinations of these schemes may also be used.

[0097] Chirp signal refers to the linear increase of carrier frequency during the pulse duration when the pulse is encoded. Alternatively, it can be understood as: chirp signal is a signal whose frequency changes (increases or decreases) over time. The expression of chirp signal x(t) is:

[0098]

[0099] Among them, f 0 is the starting frequency of the chirp signal, u 0 is the linear frequency change value of the chirp signal, which is used to characterize the frequency change of the chirp signal.

[0100] See also Figure 4 , Figure 4 Schematic diagram of the time domain response and frequency domain response of a chirp signal, where BW represents the bandwidth of the chirp signal. Figure 4 As shown, from the perspective of time domain and frequency domain, the chirp signal is a signal whose frequency increases with time.

[0101] The Chirp signal can carry a small amount of information, so the Chirp signal can be used as a wake-up signal (WUS), which is used to restore the device from a standby / sleep state to a working state.

[0102] In addition, chirp signals can retain the characteristics of continuous signals and pulses at the same time, so chirp signals are also widely used in radar and sonar detection. For example, when chirp signals are applied to radar positioning technology, they can increase the RF pulse width, increase the average transmission power, and increase the communication distance while maintaining sufficient signal spectrum width without reducing the radar's distance resolution. Therefore, chirp signals can also be used as perception signals for radar and sonar, and can be perceived through RF / non-RF methods, and the perception content includes position, speed, distance, direction, shape, or texture, etc.

[0103] However, how to receive chirp signals has not yet been defined, making it impossible to apply chirp signals to scenarios such as perception and awakening.

[0104] The embodiment of the present application provides a communication method 100. In the method, the second device sends configuration information of a first bandwidth part (BWP) to the first device, and 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 working frequency of the transmission 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 achieve the reception of 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.

[0105] This embodiment of the application proposes a communication method 100. Figure 5 1 is an interactive schematic 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:

[0106] 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, frequency linear variation value, and at least one of the initial frequency and the working frequency of the transmission chirp signal. Correspondingly, the first device receives the configuration information of the first BWP.

[0107] The configuration information of the first BWP is used to configure the bandwidth of the chirp signal, the linear frequency change value, and at least one of the initial frequency and the working frequency. It can be understood that the configuration information of the first BWP includes the BW of the chirp signal, the linear frequency change value u 0 , and the initial frequency f 0 and the operating frequency f 1 For example, the configuration information of the first BWP includes the BW of the chirp signal, u 0 and f 0 For another example, the configuration information of the first BWP includes the BW of the chirp signal, u 0 and f 1 For another example, the configuration information of the first BWP includes the BW of the chirp signal, u 0 、f 0 and f 1 .

[0108] The BW of the chirp signal also represents the bandwidth occupied by the first BWP used to transmit the chirp signal. 0 , which also represents the frequency change value of the first BWP used to transmit the chirp signal. 0 , which also represents the initial frequency of the first BWP used to transmit the chirp signal. 1 , also represents the working frequency of the first BWP used to transmit the chirp signal.

[0109] In addition, the second device sends the configuration information of the first BWP, including: the second device sends the configuration information of the first BWP to the first device. It can be seen that the second device configures the first BWP for transmitting the chirp signal to the first device through the configuration information of the first BWP. Thus, the second device can send the chirp signal on the first BWP.

[0110] 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.

[0111] In an optional implementation, the chirp signal is a perception signal or a wake-up signal WUS. When the chirp signal is a perception signal, it is beneficial for the first device to receive the perception signal whose signal type is a chirp signal on the first BWP, and then it is beneficial for the first device to apply the received chirp signal to the 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 is beneficial for the first device to receive the wake-up signal whose signal type is a chirp signal on the first BWP, and then it is beneficial for the first device to apply the received chirp signal to the wake-up scenario.

[0112] 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. t , refers to the time domain interval at which the second device repeatedly sends a chirp signal on the time domain resource, wherein the chirp signal has a bandwidth of BW and a frequency linear variation value of u 0 , the initial frequency is f 0 and / or the operating frequency is f 1 For example, Figure 6 is a schematic diagram of a chirp signal. Figure 6 As shown, the chirp signal is transmitted in the time domain at intervals of Δ t Sent repeatedly.

[0113] In an optional implementation, the configuration information of the first BWP also includes coding information, and the coding information is used to perform phase encoding on the chirp signal. The coding information may be obtained by the second device using an m sequence, a ZC sequence, a gold sequence, or other sequences to perform phase encoding on the chirp signal. The embodiment of the present application does not limit the sequence used by the second device to perform phase encoding on the chirp signal.

[0114] For example, Figure 7 is a schematic diagram of coded information. Specifically, Figure 7 It is a schematic diagram of the coding information obtained when the second device uses an m-sequence to phase encode the chirp signal, and the m-sequence is {+1, -1, +1, +1, -1}.

[0115] It can be seen that the coded information included in the configuration information of the first BWP is obtained by the second device performing phase encoding on the chirp signal. Therefore, the coded information can carry other information, such as the profile, type, trajectory, direction, or speed of the target user (or perceiving user), which is beneficial for the first device to decode the coded information and obtain the information carried by the coded information.

[0116] In an optional implementation, 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 transmission chirp signal, the linear frequency change value, and at least one of the initial frequency and the operating frequency.

[0117] 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, so as to facilitate 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), and the sensing BWP is a BWP based on chirp signals, such as a Chirp-Based BWP. The sensing BWP is used to receive a sensing signal or a wake-up signal whose signal type is a chirp signal. For example, the first BWP can be called a sensing BWP. The BWP used for communication with the first device (such as communication between the first device and the second device) can be called a communication BWP.

[0118] For example, Figure 8a is a schematic diagram of a BWP. Figure 8a As shown, the sensing BWP configured by the second device for the first device includes sensing BWP 1, sensing BWP 2, sensing BWP 3 and sensing BWP 4, and the communication BWP includes communication BWP 1, communication BWP 2 and communicationBWP 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 perception signal on sensing BWP 2, and use the received perception signal for perception. In addition, the first device can communicate on communication BWP 1, communication BWP 2 and communication BWP 3, such as communicating with the second device.

[0119] In addition, when the chirp signal is a perception signal, there may be no association relationship (independent of each other) or there may be an association relationship between the BWP used for the first device to receive the perception signal and the BWP used for the first device to communicate. Among them, there is no association relationship between the BWP used for the first device to receive the perception signal and the BWP used for the first device to communicate, which can be understood as: 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 the first device to communicate, 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 the first device to communicate.

[0120] There is an association relationship between the BWP for the first device to receive sensing signals and the BWP for the first device to communicate. It can be understood that: the time-domain resources occupied by the BWP for the first device to receive sensing signals overlap with the time-domain resources occupied by the BWP for the first device to communicate, and the frequency-domain resources occupied by the BWP for the first device to receive sensing signals do not overlap with the frequency-domain resources occupied by the BWP for the first device to communicate; or, the time-domain resources occupied by the BWP for the first device to receive sensing signals do not overlap with the time-domain resources occupied by the BWP for the first device to communicate, and the frequency-domain resources occupied by the BWP for the first device to receive sensing signals overlap with the frequency-domain resources occupied by the BWP for the first device to communicate; or, the time-domain resources occupied by the BWP for the first device to receive sensing signals overlap with the time-domain resources occupied by the BWP for the first device to communicate, and the frequency-domain resources occupied by the BWP for the first device to receive sensing signals overlap with the frequency-domain resources occupied by the BWP for the first device to communicate. It should be noted that the above-mentioned overlap includes partial overlap or complete overlap. Partial overlap means that at least a part of the BWP for receiving sensing signals and the BWP for communication are different in terms of frequency-domain resources or time-domain resources. For example, Figure 8a in Figure 8a , sensing BWP 2 for receiving sensing signals and communication BWP 1 for communication are partially the same in terms of time-domain resources; complete overlap means that the BWP for receiving sensing signals and the BWP for communication are completely the same in terms of frequency-domain resources or time-domain resources. For example, Figure 8b in Figure 8b , sensing BWP 1 for receiving sensing signals and communication BWP 1 for communication are completely the same in terms of time-domain resources.

[0121] Exemplarily, the BWP for the first device to receive sensing signals is one or more sensing BWPs, and the BWP for the first device to communicate is one or more communication BWPs. Fig. 9 is another schematic diagram of BWP. As Fig. 9 shown, 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, Fig. 9 sensing BWP 1 for the first device to receive sensing signals and communication BWP 1 for the first device to communicate are independent of each other and there is no association relationship. Or rather, sensing BWP 1 and communication BWP 1 are not associated.

[0122] Fig.10 FIG. 1 is another schematic diagram of a BWP. Fig.10 As shown, the frequency domain resources occupied by sensing BWP 1 do not overlap with the frequency domain resources occupied by communication BWP 1, and the time domain resources occupied by communication BWP 1 cover the time domain resources occupied by sensing BWP 1, that is, the time domain resources occupied by communication BWP 1 partially overlap with the time domain resources occupied by sensing BWP 1. Therefore, Fig.10 There is an association relationship between sensingBWP 1 used for the first device to receive the sensing signal and communicationBWP 1 used for the first device to communicate, or in other words, sensingBWP 1 is associated with communication BWP 1.

[0123] Fig.11 FIG. 1 is another schematic diagram of a BWP. Fig.11 As shown in FIG. 1 , 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 communication BWP 1 cover the frequency domain resources occupied by sensing BWP 1, that is, the frequency domain resources occupied by sensing BWP 1 partially overlap with the frequency domain resources occupied by communication BWP 1. Therefore, Fig.11 There is an association relationship between sensingBWP 1 used for the first device to receive the sensing signal and communicationBWP 1 used for the first device to communicate, or in other words, sensing BWP 1 is associated with communication BWP 1.

[0124] Fig.12 FIG. 1 is another schematic diagram of a BWP. Fig.12 As shown, Fig.12It includes sensing BWP 1, sensing BWP2, sensing BWP 3, sensing BWP 4 and communication BWP 1. The frequency domain resources occupied by communication BWP 1 cover 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 cover 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, Fig.12 There is an association relationship between sensing BWP 1, sensing BWP 2, sensing BWP 3 and sensing BWP 4 and communication BWP 1, or in other words, sensing BWP 1, sensing BWP 2, sensing BWP 3 and sensingBWP 4 are associated with communication BWP 1.

[0125] In an optional implementation, 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, and the fourth BWP is 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.

[0126] 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.

[0127] The fourth indication information specifically indicates the association relationship between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP, and / or the association relationship between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP. 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 center frequency point of the first BWP and the center frequency point 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 the bandwidth of the fourth BWP, the duration of the fourth BWP occupied on the time domain resources, and at least one of the time offset between the center moment of the first BWP and the center moment of the fourth BWP and the frequency offset between the center frequency point of the first BWP and the center frequency point of the fourth BWP.

[0128] For example, Fig. 9 As shown, the center frequency of sensing BWP 1 is f1, the center frequency of communication BWP 1 is f2, the time offset between the center time t1 of sensing BWP 1 and the center time 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 of sensing BWP 1 occupying the time domain resource is X. Then the fourth indication information includes the identification of sensing BWP 1, the identification of communication BWP 1, the bandwidth BW1 of sensing BWP 1, the duration X of sensing BWP 1 occupying the time domain resource, the time offset Δt between the center time of sensing BWP 1 and the center time 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. Further, after the second device sends the indication information for indicating activation of sensing BWP 1 to the first device, 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.

[0129] For example, Fig.10 As shown, the center time of sensing BWP 1 and communication BWP 1 is the same, both are t3, the center frequency of sensing BWP 1 is f3, the center frequency of communication BWP 1 is f4, the frequency deviation 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 of sensing BWP 1 occupying the time domain resources is Y. Then the fourth indication information includes the identification of sensing BWP 1, the identification of communication BWP 1, the bandwidth BW1 of sensing BWP 1, the duration Y of sensing BWP 1 occupying the time domain resources, and the frequency deviation 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 through the fourth indication information and the configured communication BWP 1. Thus, when the second device sends indication information to the first device to indicate 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.

[0130] 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.

[0131] For example, Fig.11As shown, 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 of time that sensing BWP 1 occupies in 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 start time of sensing BWP 1 and the start time of communication BWP 1, the start time 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 according to the frequency offset Δf between the start frequency point of sensing BWP 1 and the start frequency point of communication BWP 1, the start 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 for indicating activation of sensing BWP 1 to the first device, 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.

[0132] 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 point of the first BWP and the starting frequency point or the ending frequency point of the fourth BWP, or can be represented by the frequency offset between the ending frequency point of the first BWP and the starting frequency point or the ending 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 duration occupied by the fourth BWP on 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 point of the first BWP and the starting frequency point or the ending frequency point of the fourth BWP, and the frequency offset between the ending frequency point of the first BWP and the starting frequency point or the ending frequency point of the fourth BWP.

[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 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 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 center frequency of the first BWP and the center frequency 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 duration occupied by the fourth BWP on 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.

[0134] In the embodiments of the present application, the representation methods of the association relationship between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP, and the representation methods of the association relationship 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 embodiments. For example, the association relationship between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP can also be represented by 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 relationship between the frequency domain resources occupied by the first BWP and the frequency domain resources occupied by the fourth BWP can also be represented by the frequency offset between the start frequency / end frequency of the first BWP and the center frequency occupied by the fourth BWP. Optionally, the representation method of the association relationship between the time domain resources occupied by the first BWP and the time domain resources occupied by the fourth BWP and the representation method of 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 combined arbitrarily in pairs.

[0135] Optionally, when the second device indicates the association relationship between the sensing BWP and the communication BWP, it can be indicated in the form of a table. For example, the table for 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, both sensing BWP 0 and sensing BWP 1 are associated with communication BWP 0, sensing BWP 2 is associated with communication BWP 1, and sensing BWP 3 is associated with communication BWP 2.

[0136] Table 1

[0137] sensing BWP communication BWP 0 0 1 0 2 1 3 2

[0138] It can be seen that the second device indicates the fourth BWP associated with the first BWP to the first device through the fourth indication information. Thus, the first device can determine the first BWP based on the configured fourth BWP and the fourth indication information. Furthermore, when the terminal device receives the indication information for indicating the activation of the first BWP, it can receive the chirp signal on the first BWP, or can activate the first BWP and receive the chirp signal on the first BWP. Compared with the method of the second device configuring the first BWP through the configuration information of the first BWP, this method can reduce the indication overhead.

[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 a chirp signal on the first BWP includes: the second device sending a chirp signal to the first device on the first BWP. Correspondingly, the first device receives 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 also uses the received chirp signal for perception on the first BWP. For example, the first device also perceives surrounding objects on the first BWP to obtain information such as the position, speed, distance, direction, shape, or texture of the objects. It can be seen that if the terminal device receives a perception signal whose signal type is a chirp signal on the first BWP, the terminal device can 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 can wake itself up, that is, the first device can switch from the sleep state to the working state. It can be seen that if the terminal device receives a WUS whose signal type is a chirp signal on the first BWP, the terminal device can apply the received chirp signal to the wake-up scenario.

[0144] In an optional implementation, before the second device sends a chirp signal on the first BWP, it sends first indication information to the first device, and the first indication information is used to indicate 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 can be carried in the DCI, or can be carried in a higher-layer signaling, such as carried in the RRC signaling, or carried 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 activates the first BWP first and then receives the chirp signal on the first BWP.

[0146] In an optional implementation, when the first device is a terminal device and the second device is a network device, before the terminal device receives a chirp signal on the first BWP, when a first switching condition is met, the terminal device 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 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 a first mode to a second mode.

[0148] When the terminal device is in an idle state or an inactive state, it indicates that the RRC connection of the terminal device is released (RRCrelease), that is, it indicates that the terminal device can enter a sleep state from a working state, so that the terminal device can switch from a second BWP used for communication to a first BWP used for receiving chirp signals. The DRX of the terminal device is within a valid time, indicating that the terminal device is in a sleep state, so that the terminal device can switch from a second BWP used for communication to a first BWP used for receiving chirp signals. Among them, the DRX of the terminal device is a 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 a valid time. For example, the terminal device switches from the second BWP to the first BWP when the cell discontinuous reception (cell discontinuous reception, cell-DRX) of the base station is within a 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 a valid time.

[0149] Optionally, when the terminal device receives the wake-up signal, the terminal device is awakened to an active state of C-DRX, so that the C-DRX of the terminal device is within a 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 can be an enhanced mode, and the second mode can 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 the chirp signal.

[0152] In summary, 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 the second BWP is switched to the first BWP.

[0154] For example, Figure 8a As shown, the terminal device works on communication BWP 1; after receiving the configuration information of the first BWP, it determines that the first BWP is sensing BWP 3; when the terminal device determines that it is in an idle state, it switches from communication BWP 1 to sensing BWP 3 to receive the chirp signal on sensing BWP 3. It can be seen that after the data transmission is completed, the terminal device switches to sensing BWP 3 to monitor WUS, which can effectively reduce the power consumption of the terminal device.

[0155] In an optional implementation, the network device further sends second indication information to the terminal device, and the second indication information is used to indicate a first switching condition 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 used to indicate a first switching condition for the terminal device to switch from a second BWP to a first BWP. Accordingly, when the first switching condition is met, the terminal device also 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 the chirp signal when the first condition is met, so as to prepare to receive the chirp signal in advance.

[0157] Optionally, the second indication information is also used to indicate a first switching delay for the terminal device to switch from a BWP for communication to a BWP for receiving chirp signals, for example, the second information is also 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 a time interval for the terminal device to switch from a BWP for communication to a BWP for receiving chirp signals, for example, the first switching delay is a time interval for the terminal device to switch from a second BWP to a first BWP. Optionally, the second indication information may be in a tabular form, that is, 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 implementation, when the first device is a terminal device, the terminal device switches from the first BWP to the third BWP when the 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 a 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 a working state to a sleep state, so that the terminal device can switch from the first BWP for receiving chirp signals 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, Figure 8aAs shown, if the terminal device receives 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 WUS, the terminal device wakes itself up and transmits data on communication BWP 3 to ensure the continuity of communication.

[0165] In an optional implementation, the network device further sends third indication information to the terminal device, and the third indication information is used to indicate a second switching condition 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 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 also 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 also 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 also 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 a time interval for the terminal device to switch from the BWP for receiving the chirp signal to the BWP for communication, for example, the second switching delay is a time interval for the terminal device to switch from the first BWP to the third BWP, for example, the second switching delay is Figure 8a The third indication information may be in a table form, that is, the network device may indicate the second switching delay to the terminal device in a table form.

[0167] The third indication information is also used to indicate the second switching delay, so that the terminal device can switch from the BWP for receiving the chirp signal to the BWP 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 in higher-layer signaling, such as in RRC signaling, or 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] It can be seen that the terminal device can switch from a BWP for communication whose time domain resources are located before the BWP for receiving the chirp signal to the BWP for receiving the chirp signal, or can switch from the BWP for receiving the chirp signal to a BWP for communication whose time domain resources are located after the BWP for receiving the chirp signal. Fig.13 FIG. 1 is a schematic diagram of a BWP switching. The BWP used by the terminal device to receive the chirp signal is the sensing BWP, and the BWP used by the terminal device to communicate is the communication BWP. The terminal device can Fig.13 As shown, switching between sensing BWP and communication BWP.

[0171] In an optional implementation, when the chirp signal received by the terminal device is a perception signal, the terminal device may also use the fifth BWP for communication, and 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, it can also communicate on the fifth BWP with a frequency band lower than the first BWP, thereby realizing the integration of communication and perception.

[0173] For example, Figure 8a As shown, 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, and frequency point B is higher than frequency point A. The terminal device receives the sensing signal on sensing BWP2 and senses, and communicates on communication BWP 1.

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

[0175] In the embodiment of the present application, the second device sends the configuration information of the first BWP to the first device, and the configuration information of the first BWP is used to configure the bandwidth, the linear frequency change value, and at least one of the initial frequency and the working frequency of the transmission chirp signal. Thus, the first device receives the chirp signal on the configured first BWP, which is conducive to the first device being able to apply the chirp signal, for example, using the chirp signal for perception, 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] In order to implement the functions of the method provided in the above embodiment of the present application, the first device and the second device may include a hardware structure and / or a software module, and implement the above functions in the form of a hardware structure, a software module, or a hardware structure plus a software module. Whether one of the above functions is executed in the form of a hardware structure, a software module, or a hardware structure plus a software module depends on the specific application and design constraints of the technical solution.

[0178] like Fig.14 As shown, an embodiment of the present application provides a communication device 1400. The communication device 1400 may 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 may also be other communication units, used to implement 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, Fig.14 One or more units 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 the embodiments of the present application. The processor, memory, and transceiver may be provided separately or integrated.

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

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

[0182] The communication unit 1401 is used 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;

[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 repetitive 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 used to: receive first indication information, where the first indication information is used to indicate activation of the first BWP.

[0187] In an optional implementation, 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, before the processing unit 1402 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.

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

[0192] In an optional implementation, 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.

[0193] In an optional implementation, the communication unit 1401 is further used 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 manner, 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, and 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 method embodiments shown above 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 embodiments shown above, and no further details will be given.

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

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

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

[0201] In an optional implementation, the chirp signal is a sensing 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 implementation, the communication unit 1401 is further configured to send second indication information, where the second indication information is used to indicate a first switching condition for the terminal device to switch from a second BWP to the first BWP, and the second BWP is used for communication of the terminal device; the first switching condition is that the terminal device is in an idle state or a non-active state, or the discontinuous reception (DRX) of the terminal device is within an active time, or the terminal device switches from a first mode to a second mode; where 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 implementation, the communication unit 1401 is further configured to send 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, and the third BWP is used for communication of 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 expires.

[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 used 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 manner, 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 method embodiments shown above 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 embodiments shown above, and no further details will be given.

[0211] The present application also provides a communication device 1500, Fig.15 1 is a schematic diagram of the structure of a communication device 1500. The communication device 1500 may be a first device, or a chip, a chip system, or a processor that supports the first device to implement the above method; or, it may be a second device, or a chip, a chip system, or a processor that supports the second device to implement the above method. The device may be used to implement the method described in the above method embodiment, and the details may refer to the description in the above 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, etc. 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 the communication protocol and the communication data, and the central processing unit may be used to control the communication device (such as a base station, a baseband chip, a terminal, a terminal chip, a distributed unit (DU) or a centralized unit (CU), etc.), execute a software program, and process the data of the software program.

[0213] Optionally, the communication device 1500 may include one or more memories 1502, on which instructions 1504 may be stored, and the instructions may be executed on the processor 1501, so that the communication device 1500 performs the method described in the above method embodiment. Optionally, data may also be stored in the memory 1502. The processor 1501 and the 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., for implementing a transceiver function. The transceiver 1505 may include a receiver and a transmitter, the receiver may be referred to as a receiver or a receiving circuit, etc., for implementing a receiving function; the transmitter may be referred to as a transmitter or a transmitting circuit, etc., for implementing 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 used to execute S101 and S102 in the above communication method 100.

[0217] Optionally, the processor 1501 may store an instruction 1503, and the instruction 1503 runs on the processor 1501, so that the communication device 1500 can execute the method described in the above method embodiment. The instruction 1503 may be fixed in the processor 1501, in which 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 also 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] The embodiment of the present application also 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] The 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 embodiment of the present application also provides a computer program, which, when executed on a computer, implements the functions of any of the above method embodiments.

[0223] The terms "first" and "second" in the specification, claims and drawings of the embodiments of the present 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] In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device comprising a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, products or devices.

[0225] Mentioning "embodiment" in the embodiments of the present application means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood 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, "plurality" 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 following 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 the present 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 the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a concrete way for easy understanding.

[0228] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part 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, the process or function described in the embodiment of the present application is generated in whole or in part. 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 a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. 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. 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), etc.

[0229] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A communication method, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is characterized in that The method further comprises: When a second switching condition is met, switching from the first BWP to a third BWP, 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 the DRX timer of the terminal device times out.

9. The method according to claim 8, It is 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, It is 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, It is 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, 11, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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, It is 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.

Images