Communication method, device and system

Abstract

The invention provides a communication method, device and system, which can be suitable for a scene of transmitting a low-power-consumption wake-up signal. According to the method, through a pre-defining or configuration mode, when the terminal equipment monitors signals in low-power-consumption modes such as LP-WUS, the monitoring mode can be replaced in time, so that the monitoring requirements of different channel states are met, and the monitoring performance is improved.

Description

Technical Field

[0001] This application relates to the field of communications. In particular, it relates to a communication method, apparatus, and system. Background Art

[0002] When the network side has data to send to the terminal device, the network side first sends a low power wakeup signal (LP-WUS) to wake up the main receiver, and then the main receiver performs a blind detection of the physical uplink control channel (PDCCH) and receives the corresponding data scheduling. Since the low power wakeup receiver (LP-WUR) usually uses a low-speed, low-precision analog-to-digital converter, a low-precision local oscillator, and a low-complexity digital processing module, the power consumption of the LP-WUR is much lower than that of the traditional NR main receiver. However, the channel state changes over time, and the terminal device cannot obtain information about the network device during the period when it receives the LP-WUS, so it cannot adjust relevant parameters in time, affecting communication performance, such as affecting monitoring performance. Summary of the Invention

[0003] This application provides a communication method, apparatus, and system, which facilitate the terminal device to adjust relevant parameters in time and improve monitoring performance.

[0004] In a first aspect, a communication method is provided. This method can be executed by a terminal device, or alternatively, by a chip or circuit for the terminal device. This application does not limit this. For ease of description, the following takes the execution by the terminal device as an example for illustration.

[0005] The method includes: entering a first mode at a first moment, monitoring a first signal using first configuration parameters, the type of the first signal being a first type, and the first type of signal being used to wake up a second mode of the terminal device, where the power consumption of the second mode is greater than that of the first mode; in the case of not receiving the first signal, starting to monitor a second signal using second configuration parameters from a second moment or starting to monitor a third signal from the second moment, the type of the second signal being the first type, and the type of the third signal being a second type, and the second type of signal being a signal in the second mode.

[0006] In this method, the terminal device can use different configuration parameters to enter different modes at different moments, avoiding the problem of being difficult to enter different modes due to inability to obtain configurations, and being able to improve monitoring performance.

[0007] In some implementations, the monitoring of the second signal using the second configuration parameter starting from the second moment or the monitoring of the third signal starting from the second moment includes: when the first timer times out, starting from the second moment, monitoring the second signal using the second configuration parameter, or starting from the second moment, monitoring the third signal, where the running duration of the first timer is the duration of monitoring the first signal using the first configuration parameter.

[0008] That is, the network device configures a timer to determine when the terminal device changes the configuration parameter to access different modes, further improving the timeliness of the terminal device accessing different modes.

[0009] In some implementations, the second moment is the start moment of the active state of the first discontinuous reception (DRX) cycle.

[0010] In some implementations, when monitoring the third signal starting from the second moment, the method further includes: receiving first indication information, where the first indication information indicates that the terminal device monitors the second signal.

[0011] That is, although the terminal device is instructed to monitor the second signal, starting from the second moment, the terminal device still monitors the third signal.

[0012] In some implementations, the value of the first indication information is used to represent the signal type within a first time period, or rather, the value of the first indication information is used to represent the signal monitoring method within a first time period. The start moment of the first time period is the second moment, and the duration of the first time period is configured or predefined.

[0013] In some implementations, when the value of the first indication information is 1, it indicates that the signal type within the first time period is the first type, and when the value of the first indication information is 0, it indicates that the signal type within the first time period is the second type. Or, when the value of the first indication information is 0, it indicates that the signal type within the first time period is the first type, and when the value of the first indication information is 1, it indicates that the signal type within the first time period is the second type.

[0014] In some implementations, the first indication information is carried in a radio resource control (RRC) signaling, a physical downlink control channel (PDCCH), or a media access control control element (MAC CE).

[0015] In some implementations, when the duration of monitoring the first signal using the first configuration parameter is greater than or equal to a second time period, starting from the second moment, monitoring the third signal, where the duration of the second time period is configured or predefined.

[0016] In this method, the terminal device can determine the time to monitor the third signal without indication information, further saving the indication overhead.

[0017] In some implementation manners, channel state information is sent.

[0018] In this method, the terminal device sends the channel state information to the network device in a timely manner, which is convenient for the network device to update the configuration parameters according to the channel state and improve the communication performance.

[0019] In some implementation manners, the second configuration parameter is configured or predefined.

[0020] In some implementation manners, the second configuration parameter is configured, and the method further includes: receiving RRC signaling for indicating the second configuration parameter.

[0021] In some implementation manners, entering the first mode at the first moment includes: receiving second indication information for indicating the terminal device to enter the first mode, or entering the first mode at the first moment when a second timer expires, where the running duration of the second timer is the duration of monitoring the second type of signal before entering the first mode.

[0022] That is, there are multiple ways for the terminal device to enter the first mode, which has a certain degree of flexibility.

[0023] In some implementation manners, the second indication information is carried in downlink control information DCI or MAC CE.

[0024] In some implementation manners, the first configuration parameter and / or the second configuration parameter indicate at least one of the repetition manner, the number of repetitions, or the time-frequency resource of the first type of signal.

[0025] In a second aspect, a communication method is provided. This method can be executed by a network device, or can also be executed by a chip or circuit for the network device. This application does not make any limitation in this regard. For ease of description, the following takes the execution by the network device as an example for illustration.

[0026] The method includes: notifying the terminal device to enter the first mode at the first moment, monitoring the first signal using the first configuration parameter, where the type of the first signal is the first type, and the first type of signal is used to wake up the second mode of the terminal device, and the power consumption of the second mode is greater than that of the first mode; determining a second moment for the terminal device to start monitoring the second signal or start monitoring the third signal using the second configuration parameter, where the type of the second signal is the first type, the type of the third signal is the second type, and the second type of signal is a signal in the second mode.

[0027] In some implementations, determining the second moment includes: configuring a first timer, where the running duration of the first timer is the duration for which the terminal device monitors the first signal using the first configuration parameter, and the second moment is the moment when the first timer expires or a moment after the first timer expires.

[0028] In some implementations, the second moment is the start moment of the active state of the first DRX cycle.

[0029] In some implementations, the second moment is used for the terminal device to start monitoring a third signal, and the method further includes: sending a first indication message, where the first indication message indicates that the terminal device monitors the second signal.

[0030] In some implementations, the value of the first indication message is used to represent the signal type within a first time period, or rather, the value of the first indication message is used to represent the signal monitoring method within a first time period. The start moment of the first time period is the second moment, and the duration of the first time period is configured or predefined.

[0031] In some implementations, when the value of the first indication message is 1, it indicates that the signal type within the first time period is the first type, and when the value of the first indication message is 0, it indicates that the signal type within the first time period is the second type. Or, when the value of the first indication message is 0, it indicates that the signal type within the first time period is the first type, and when the value of the first indication message is 1, it indicates that the signal type within the first time period is the second type.

[0032] In some implementations, the first indication message is carried in an RRC signaling, PDCCH, or MAC CE.

[0033] In some implementations, the second moment is used for the terminal device to start monitoring a third signal, including: when the duration for which the terminal device monitors the first signal using the first configuration parameter is greater than or equal to a second time period, determining the second moment, where the duration of the second time period is configured or predefined.

[0034] In some implementations, the method further includes: receiving channel state information.

[0035] In some implementations, the second configuration parameter is configured or predefined.

[0036] In some implementations, the second configuration parameter is configured, and the method further includes: sending an RRC signaling, where the RRC signaling is used to indicate the second configuration parameter.

[0037] In some implementations, notifying the terminal device to enter the first mode at a first moment includes: sending second indication information, where the second indication information indicates that the terminal device enters the first mode, or configuring a second timer, and when the second timer expires, indicating that the terminal device enters the first mode at the first moment, and the running duration of the second timer is the duration for the terminal device to monitor the second type of signal before entering the first mode.

[0038] In some implementations, the second indication information is carried in downlink control information DCI or MAC CE.

[0039] In some implementations, the first configuration parameter and / or the second configuration parameter indicate at least one of the repetition pattern, the number of repetitions, or the time-frequency resource of the first type of signal.

[0040] In a third aspect, a communication device is provided, including a transceiver module and a processing module. The processing module is used to enter a first mode at a first moment, monitor a first signal using a first configuration parameter, where the type of the first signal is a first type, and the first type of signal is used to wake up a second mode of the terminal device, and the power consumption of the second mode is greater than that of the first mode; in the case of not receiving the first signal, start monitoring a second signal using a second configuration parameter or start monitoring a third signal from a second moment, where the type of the second signal is the first type, the type of the third signal is a second type, and the second type of signal is a signal in the second mode.

[0041] In some implementations, the processing module is used to start monitoring the second signal using the second configuration parameter or start monitoring the third signal from the second moment when a first timer expires, and the running duration of the first timer is the duration for monitoring the first signal using the first configuration parameter.

[0042] In some implementations, the second moment is the start moment of the active state of a first discontinuous reception DRX cycle.

[0043] In some implementations, the communication device includes a transceiver module, and the transceiver module is used to receive first indication information, where the first indication information indicates that the terminal device monitors the second signal.

[0044] In some implementations, the value of the first indication information is used to represent the signal type within a first time period, or rather, the value of the first indication information is used to represent the signal monitoring method within a first time period, the start moment of the first time period is the second moment, and the duration of the first time period is configured or predefined.

[0045] In some implementations, when the value of the first indication information is 1, it indicates that the type of the signal in the first time period is the first type, and when the value of the first indication information is 0, it indicates that the type of the signal in the first time period is the second type. Alternatively, when the value of the first indication information is 0, it indicates that the type of the signal in the first time period is the first type, and when the value of the first indication information is 1, it indicates that the type of the signal in the first time period is the second type.

[0046] In some implementations, the first indication information is carried in radio resource control (RRC) signaling, a physical downlink control channel (PDCCH), or a media access control control element (MAC CE).

[0047] In some implementations, the processing module is configured to monitor the third signal starting from the second moment when the duration of monitoring the first signal using the first configuration parameter is greater than or equal to a second time period, and the duration of the second time period is configured or predefined.

[0048] In some implementations, the transceiver module is configured to send channel state information.

[0049] In some implementations, the second configuration parameter is configured or predefined.

[0050] In some implementations, the second configuration parameter is configured, and the method further includes: receiving RRC signaling for indicating the second configuration parameter.

[0051] In some implementations, the transceiver module is further configured to receive second indication information for indicating that the terminal device enters the first mode, or enter the first mode at a first moment when a second timer expires, and the running duration of the second timer is the duration of monitoring the second type of signal before entering the first mode.

[0052] In some implementations, the second indication information is carried in downlink control information (DCI) or a MAC CE.

[0053] In some implementations, the first configuration parameter and / or the second configuration parameter indicate at least one of the repetition pattern, the number of repetitions, or the time-frequency resources of the first type of signal.

[0054] In a fourth aspect, a communication device is provided, including a processing module, which is configured to notify a terminal device to enter a first mode at a first moment, monitor a first signal using first configuration parameters, the type of the first signal being a first type, and the first type of signal being used to wake up a second mode of the terminal device, where the power consumption of the second mode is greater than that of the first mode; the processing module is further configured to determine a second moment, where the second moment is used for the terminal device to start monitoring a second signal or start monitoring a third signal using second configuration parameters, the type of the second signal being the first type, the type of the third signal being a second type, and the second type of signal being a signal in the second mode.

[0055] In some implementations, the processing module is further configured to determine the second moment, including: the processing module is configured to configure a first timer, the running duration of the first timer being the duration for the terminal device to monitor the first signal using the first configuration parameters, and the second moment being the moment when the first timer expires or a moment after the first timer expires.

[0056] In some implementations, the second moment is the start moment of the active state of a first DRX cycle.

[0057] In some implementations, the second moment is used for the terminal device to start monitoring a third signal, and the communication device further includes a transceiver module, which is configured to send a first indication message, and the first indication message indicates that the terminal device monitors the second signal.

[0058] In some implementations, the value of the first indication message is used to represent the signal type within a first time period, or rather, the value of the first indication message is used to represent the signal monitoring method within a first time period, the start moment of the first time period being the second moment, and the duration of the first time period being configured or predefined.

[0059] In some implementations, when the value of the first indication message is 1, it indicates that the signal type within the first time period is the first type, and when the value of the first indication message is 0, it indicates that the signal type within the first time period is the second type; or when the value of the first indication message is 0, it indicates that the signal type within the first time period is the first type, and when the value of the first indication message is 1, it indicates that the signal type within the first time period is the second type.

[0060] In some implementations, the first indication message is carried on an RRC signaling, PDCCH or MAC CE.

[0061] In some implementations, the processing module is configured to determine the second moment when the duration for which the terminal device monitors the first signal using the first configuration parameter is greater than or equal to a second time period, and the duration of the second time period is configured or predefined.

[0062] In some implementations, the transceiver module is further configured to receive channel state information.

[0063] In some implementations, the second configuration parameter is configured or predefined.

[0064] In some implementations, the second configuration parameter is configured, and the method further includes: sending an RRC signaling for indicating the second configuration parameter.

[0065] In some implementations, the transceiver module is further configured to send a second indication information for indicating that the terminal device enters the first mode, or configure a second timer, and when the second timer expires, indicate that the terminal device enters the first mode at the first moment, where the running duration of the second timer is the duration for which the terminal device monitors the second type of signal before entering the first mode.

[0066] In some implementations, the second indication information is carried in a downlink control information DCI or a MAC CE.

[0067] In some implementations, the first configuration parameter and / or the second configuration parameter indicate at least one of a repetition pattern, a repetition count, or time-frequency resources of the first type of signal.

[0068] In a fifth aspect, the present application provides a communication device, including an interface circuit and a processor. The interface circuit is configured to implement the functions of the transceiver module in the third aspect, and the processor is configured to implement the functions of the processing module in the third aspect.

[0069] In a sixth aspect, the present application provides a communication device, including an interface circuit and a processor. The interface circuit is configured to implement the functions of the transceiver module in the fourth aspect, and the processor is configured to implement the functions of the processing module in the sixth aspect.

[0070] In a seventh aspect, the present application provides a computer-readable medium storing program codes for a terminal device to execute. The program codes include instructions for executing the method in the first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect.

[0071] In an eighth aspect, an embodiment of the present application provides a computer-readable medium storing program code for a network device to execute, where the program code includes instructions for executing the method of the second aspect, or the third aspect, or any possible manner in the second aspect, or any possible manner in the third aspect, or all possible manners in the second aspect, or all possible manners in the third aspect.

[0072] In a ninth aspect, a computer program product storing computer-readable instructions is provided. When the computer-readable instructions run on a computer, the computer is caused to execute the method of the first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect.

[0073] In a tenth aspect, a computer program product storing computer-readable instructions is provided. When the computer-readable instructions run on a computer, the computer is caused to execute the method of the second aspect, or any possible manner in the second aspect, or all possible manners in the second aspect.

[0074] In an eleventh aspect, a communication system is provided, which includes a device having the function of implementing the method of the first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect, the second aspect, or any possible manner in the second aspect, or all possible manners in the second aspect, and various possible designs.

[0075] In a twelfth aspect, a processor is provided for coupling with a memory and for executing the method of the first aspect, or any possible manner in the first aspect, or all possible manners in the first aspect.

[0076] In a thirteenth aspect, a processor is provided for coupling with a memory and for executing the method of the second aspect, or any possible manner in the second aspect, or all possible manners in the second aspect.

[0077] In a fourteenth aspect, a chip system is provided. The chip system includes a processor and may further include a memory for executing a computer program or instructions stored in the memory, so that the chip system implements the method in any one of the foregoing first aspect or second aspect, and any possible implementation manner of any aspect. The chip system may be composed of chips or may include chips and other discrete devices. BRIEF DESCRIPTION OF THE DRAWINGS

[0078] Figure 1 is a schematic diagram of a wireless communication system applicable to the embodiments of the present application.

[0079] Figure 2Figure (a) in it is a schematic diagram of receiver interaction applicable to the embodiments of this application.

[0080] Figure 2 Figure (a) in it is a schematic diagram of a DRX cycle applicable to the embodiments of this application.

[0081] Figure 3 It is a schematic diagram of a communication method provided by the embodiments of this application.

[0082] Figure 4 It is a schematic diagram of a CSI reporting method provided by the embodiments of this application.

[0083] Figure 5 It shows a schematic block diagram of a communication device provided by the embodiments of this application.

[0084] Figure 6 It shows a schematic structural diagram of another communication device provided by the embodiments of this application. Detailed implementation manners

[0085] Next, the technical solutions in the embodiments of this application will be described with reference to the accompanying drawings.

[0086] Figure 1 It is an architectural schematic diagram of a communication system 1000 to which the embodiments of this application are applied. As Figure 1 shown, the communication system includes a radio access network 100 and a core network 200. Optionally, the communication system 1000 may further include the Internet 300. Among them, the radio access network 100 may include at least one radio access network device (such as Figure 1 110a and 110b in it), and may further include at least one terminal (such as Figure 1 120a - 120j in it). The terminal is connected to the radio access network device in a wireless manner, and the radio access network device is connected to the core network in a wireless or wired manner. The core network device and the radio access network device may be independent different physical devices, or the functions of the core network device and the logical functions of the radio access network device may be integrated on the same physical device, or the functions of part of the core network device and part of the radio access network device may be integrated on a physical device. Terminals and terminals, as well as radio access network devices and radio access network devices, may be connected to each other in a wired or wireless manner. Figure 1 This is just a schematic diagram, and other network devices may also be included in the communication system, such as wireless relay devices and wireless backhaul devices, which are not drawn in Figure 1 it.

[0087] The network device can be a radio access network device. For example, it can be a base station, an evolved NodeB (eNodeB), a transmission reception point (TRP), a next generation NodeB (gNB) in a 5th generation (5G) mobile communication system, a next generation NodeB in a 6th generation (6G) mobile communication system, a base station in a future mobile communication system, or an access node in a WiFi system, etc.; it can also be a module or unit that completes some functions of the base station. For example, the radio access network device can include at least one of a centralized unit (CU), a distributed unit (DU), and a radio unit (RU). Among them, the centralized unit can also be called a central unit (CU) or a control unit (CU). Here, the CU completes the functions of the radio resource control (RRC) layer and the packet data convergence protocol (PDCP) layer of the base station, and can also complete the function of the service data adaptation protocol (SDAP) layer; the DU completes the functions of the radio link control (RLC) layer and the medium access control (MAC) layer of the base station, and can also complete some functions of the physical layer (for example, the higher layer of the physical layer) or all functions of the physical layer; the RU completes the radio frequency function and can also complete some functions of the physical layer (for example, the lower layer of the physical layer). For specific descriptions of the above various protocol layers, reference can be made to the relevant technical specifications of the 3rd generation partnership project (3GPP). The radio access network device can be a macro base station (such as Figure 1 110a in Figure 1 ), or a micro base station or an indoor station (such as 110b in Figure 1 ), or a relay node or a donor node, etc. The embodiments of the present application do not limit the specific technologies and specific device forms adopted by the radio access network device. For ease of description, the base station is used as an example of the network device in the following description.

[0088] A terminal device can also be referred to as a terminal, user equipment (UE), mobile station, mobile terminal, etc. Terminals can be widely used in various scenarios, such as device-to-device (D2D), vehicle-to-everything (V2X) communication, machine-type communication (MTC), Internet of Things (IoT), virtual reality, augmented reality, industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearables, smart transportation, smart city, etc. A terminal can be a mobile phone, tablet computer, computer with wireless transceiver function, wearable device, vehicle, drone, helicopter, airplane, ship, robot, robotic arm, smart home device, etc. Embodiments of the present application do not limit the specific technologies and specific device forms adopted by the terminal.

[0089] The base station and the terminal can be fixed or movable. The base station and the terminal can be deployed on land, including indoor or outdoor, handheld or vehicle-mounted; they can also be deployed on water; they can also be deployed on airplanes, balloons, and artificial satellites. Embodiments of the present application do not limit the application scenarios of the base station and the terminal.

[0090] The roles of the base station and the terminal can be relative. For example, Figure 1 the helicopter or drone 120i in [Figure] can be configured as a mobile base station. For the terminals 120j that access the radio access network 100 through 120i, the terminal 120i is a base station; but for the base station 110a, 120i is a terminal, that is, the communication between 110a and 120i is through the radio air interface protocol. Of course, the communication between 110a and 120i can also be through the interface protocol between base stations. At this time, relative to 110a, 120i is also a base station. Therefore, both the base station and the terminal can be uniformly referred to as communication devices. Figure 1 the 110a and 110b in [Figure] can be referred to as communication devices with base station functions. Figure 1 the 120a - 120j in [Figure] can be referred to as communication devices with terminal functions.

[0091] The communication between the base station and the terminal, between the base station and the base station, and between the terminal and the terminal can be carried out through licensed spectrum, unlicensed spectrum, or both licensed and unlicensed spectrum at the same time; it can be carried out through spectrum below 6 gigahertz (GHz), through spectrum above 6 GHz, or both below 6 GHz and above 6 GHz at the same time. Embodiments of the present application do not limit the spectrum resources used for wireless communication.

[0092] In the embodiments of the present application, the functions of the base station can also be executed by modules (such as chips) in the base station, or can be executed by a control subsystem including the functions of the base station. The control subsystem including the functions of the base station here can be a control center in the above application scenarios such as smart grid, industrial control, intelligent transportation, and smart city. The functions of the terminal can also be executed by modules (such as chips or modems) in the terminal, or can be executed by a device including the functions of the terminal.

[0093] The technical solutions provided in the embodiments of the present application can be applied to wireless communications between communication devices. The wireless communications between communication devices can include: wireless communications between network devices and terminals, wireless communications between network devices and network devices, and wireless communications between terminals. Among them, in the embodiments of the present application, the term "wireless communication" can also be abbreviated as "communication", and the term "communication" can also be described as "data transmission", "information transmission" or "transmission".

[0094] It can be understood that in the embodiments of the present application, the physical downlink share channel (PDSCH), the physical downlink control channel PDCCH, and the physical uplink share channel (PUSCH) are only examples of the downlink data channel, the downlink control channel, and the uplink data channel respectively. In different systems and different scenarios, the data channel and the control channel may have different names, and the embodiments of the present application do not limit this.

[0095] To facilitate the understanding of the solutions in the embodiments of the present application, the concepts involved in the embodiments of the present application are first explained.

[0096] 1. LP-WUS

[0097] LP-WUS is a low-power wake-up signal. The terminal device can monitor the low-power wake-up signal in a low-power consumption working mode, which is used to wake up the terminal device to enter a higher-power consumption working mode to receive and / or send data, thereby reducing the power consumption of the terminal. There are various methods to improve the monitoring performance of the LP-WUS signal, such as time / frequency domain repeated transmission, energy concentrated transmission, transmit diversity, frequency modulation and other technologies. The configuration of these technologies needs to be notified to the terminal device in advance. For example, the network device needs to inform the terminal device of the transmission method of the LP-WUS before the terminal device monitors the LP-WUS, such as the repetition times of the signal in the time domain or whether to use frequency hopping technology and other information.

[0098] The following gives an interaction example of LP-WUS.

[0099] Such as Figure 2As shown in (a) thereof, when the network side has data to send to the terminal device, the network side first sends an LP-WUS signal to wake up the primary receiver, and then the primary receiver performs PDCCH blind detection and receives the corresponding data scheduling. Since LP-WUR usually uses a low-speed, low-precision ADC, a low-precision local oscillator, and a low-complexity digital processing module, the power consumption of LP-WUR is much lower than that of the traditional NR primary receiver. Therefore, by using LP-WUR to receive the wake-up signal and then waking up the primary receiver to receive data scheduling, the purpose of reducing the power consumption of the terminal device can be achieved. When LP-WUR is turned on, the primary receiver can enter the sleep state, thereby saving energy. When LP-WUR receives the LP-WUS signal, the primary receiver is turned on to perform subsequent operations such as data reception.

[0100] In this application, the mode in which the terminal device receives LP-WUS (i.e., the working mode with lower power consumption) is called the first mode. One manifestation is that the first mode is executed by the secondary receiver, and the mode of receiving messages such as PDCCH (i.e., the working mode with higher power consumption) is called the second mode. One manifestation is that the second mode is executed by the primary receiver.

[0101] In this application, the type of signal used to wake up the primary receiver is the first type. For example, the signal of the first type can be LP-WUS. The type of signal that does not have a wake-up function is the second type. For example, the signal of the second type can be PDCCH.

[0102] 2. Discontinuous Reception (DRX)

[0103] In the DRX mode, the terminal device can turn off its receiver within a specified time interval to avoid unnecessary data transmission, so as to save power consumption and extend battery life. The network can control the sleep and wake-up times of the terminal device to optimize power consumption and network resource utilization. This mode is mainly used to support low-power terminal devices such as Internet of Things sensor nodes, etc.

[0104] The DRX mode includes multiple DRX cycles, as Figure 2 shown in (b) thereof, including two DRX cycles, namely DRX cycle one and DRX cycle two. Each DRX cycle includes an active window (also called the active state) and an inactive window (also called the inactive state). During the active window, the terminal device needs to turn on the receiver and receive the data transmitted by the network. Exemplarily, the terminal device can monitor the PDCCH at the beginning stage of the active state of each DRX. During the inactive window, the terminal device can turn off the receiver and enter the sleep state to save power consumption.

[0105] During the continuous reception of LP-WUS signals by the secondary receiver of the terminal device, the primary receiver does not perform PDCCH blind detection. However, the channel state changes over time. At positions with a relatively large time interval, due to the change in the channel state, the monitoring method of the terminal device for LP-WUS needs to change in order for the terminal device to correctly receive LP-WUS. For example, at time A, if the channel state is good, the network side can send LP-WUS signals with fewer repetition times. After a long time, the channel state may deteriorate, and the network side needs to send LP-WUS signals with more repetition times or in a frequency hopping-based manner in order for the terminal device to correctly receive LP-WUS. However, currently, the network device cannot notify the terminal device that the monitoring method needs to change.

[0106] In view of this, the present application proposes a communication method, which can enable the terminal device to timely change the monitoring configuration and improve the monitoring performance. As Figure 3 shown, the method includes the following steps:

[0107] S310, the terminal device enters the first mode at the first moment and monitors the first signal using the first configuration parameter.

[0108] Among them, the type of the first signal is the first type. Exemplarily, the first signal can be LP-WUS. The signal of the first type is used to wake up the second mode of the terminal device. The power consumption of the terminal device in the second mode is greater than that in the first mode. The first mode and the second mode can refer to the above description.

[0109] The monitoring in the present application can also be referred to as listening, hearing, detecting, etc., and no limitation is made thereto.

[0110] A possible implementation is that the first moment is configured. Exemplarily, the network device sends indication information A (an example of the second indication information) to the terminal device, and the indication information A indicates the start moment of the first mode, that is, the first moment. The terminal device starts to monitor the first signal according to the indication information at the first moment. Or, the indication information A indicates that the terminal device enters the monitoring state of the signal of the first type. Exemplarily, the indication information A indicates that the terminal device enters the LP-WUS monitoring state.

[0111] Optionally, the indication information A is carried in downlink control information (DCI) or media access control control element (MAC CE).

[0112] Another possible implementation is that the network device configures a timer A (i.e., the second timer) for the terminal device. The running duration of the second timer is the duration for the terminal device to monitor the second type of signal before entering the first mode. When the timer times out, the terminal device enters the first mode. For example, the terminal device continuously monitors the PDCCH. If the terminal device does not detect a PDCCH for data scheduling during this period, the timer continues to count. If the terminal device detects a PDCCH for data scheduling during this period, the timer is initialized (e.g., set to zero) and starts counting again. After the timer times out, the terminal device enters the LP-WUS monitoring state.

[0113] The first configuration parameter is used for the terminal device to monitor the first type of signal. The first configuration parameter can be configured or predefined. Taking the case where the first configuration parameter is configured as an example, the network device sends the first configuration parameter to the terminal device. The first configuration parameter is a configuration parameter for the terminal device to monitor LP-WUS. The first configuration parameter can be at least one of the repetition pattern, the number of repetitions of LP-WUS in the time domain and / or frequency domain, and whether the transmission of LP-WUS uses frequency hopping or interleaving, etc. The terminal device receives LP-WUS on the corresponding time-frequency resources according to the first configuration parameter.

[0114] The terminal device receives the indication information A sent by the network, or before the terminal device enters the first mode, the main receiver can turn off some functions, such as not blindly detecting the PDCCH in the Type 3 communications subsystem (Type3CSS) and the universal serial interface (USS).

[0115] It should be understood that when the terminal device enters the first mode and uses the first configuration parameter to monitor the first signal, it does not necessarily mean that the terminal device can receive the first signal. That is, the terminal device enters the first mode and keeps monitoring, but may not detect the first signal.

[0116] S320, the terminal device starts to monitor the second signal using the second configuration parameter or starts to monitor the third signal from the second moment.

[0117] For example, in the case of not receiving the first signal, the terminal device starts to monitor the second signal using the second configuration parameter or starts to monitor the third signal from the second moment.

[0118] The type of the second signal is the first type. The type of the third signal is the second type. Exemplarily, the second signal is LP-WUS, and the third signal is PDCCH. The first configuration parameter and the second configuration parameter may be the same or different. The first configuration parameter and the second configuration parameter are not related, or in other words, the first configuration parameter and the second configuration parameter are independent of each other.

[0119] A possible implementation 1 is that the second moment can be configured. For example, the network device indicates the second moment to the terminal device, and the terminal device starts monitoring the second signal or the third signal from the second moment.

[0120] A possible implementation 2 is that the second moment is determined by a timer. Exemplarily, the network device configures a timer B (i.e., the first timer) for the terminal device, and the running duration of the timer B is the duration for the terminal device to monitor the first signal using the first configuration parameter. When the first timer expires, start monitoring the second signal using the second configuration parameter from the second moment, or start monitoring the third signal from the second moment.

[0121] For example, the network device configures a timer B for the terminal device. The timer B indicates that during the timing of the timer B, when the network schedules the terminal device, it will first send an LP-WUS signal. The network notifies the terminal device to perform LP-WUS monitoring and starts the timer B. During the timing of the timer B, if the network sends LP-WUS, the timer B is initialized (such as set to zero) and stops timing. When the timer B expires, there are two possible cases as follows:

[0122] Possibility 1: After the timer B expires, the network sends LP-WUS based on the second configuration parameter. At this time, the second monitoring configuration parameter is not related to the first configuration parameter. The second configuration parameter can be a larger repetition count, using frequency hopping, using interleaving, etc. In short, the second configuration parameter is to ensure that LP-WUS can be accurately received by the terminal device, that is, correctly received by the terminal device with a lower false monitoring rate.

[0123] The second configuration parameter can be RRC-configured, that is, adding an LP-WUS monitoring configuration parameter field in the RRC configuration parameter.

[0124] The second configuration parameter can also be in a protocol-predefined manner. For example, the standard stipulates that after the timer B expires, the configuration parameter for the terminal device to monitor LP-WUS is the maximum repetition count, using interleaving and frequency hopping, etc.

[0125] Possibility 2: After the timer B expires, when the network schedules the UE, it will directly send PDCCH without sending the LP-WUS signal. The terminal device turns on the main receiver (i.e., enters the second mode), such as receiving PDCCH or reporting channel state information (CSI).

[0126] The above solution can be applied to the DRX scenario. For example, the second moment is the start moment of the active state of a certain DRX cycle, including the following two possible implementations:

[0127] Possible implementation A: The terminal device starts monitoring the first type of signal (such as the second signal) from the start moment of the active state of DRX cycle 1.

[0128] This DRX cycle 1 is one or more of multiple DRX cycles.

[0129] Exemplarily, the network device sends LP-WUS at the start stage of the active state of each DRX cycle. The configuration parameters of LP-WUS can be a large number of repetitions, a frequency hopping or interleaving transmission mode, etc. The terminal device receives LP-WUS at the start stage of the active state of each DRX cycle.

[0130] In this way, regardless of whether the terminal device monitors the first type of signal or the second type of signal in the DRX cycle before the start of the active state of the current DRX cycle, after the start of the active state of the next DRX cycle, it will monitor the first type of signal.

[0131] Possible implementation B: The terminal device starts monitoring the second type of signal (such as the third signal) from the start moment of the active state of DRX cycle 1.

[0132] Before the terminal device monitors the second type of signal, the network device can also send indication information B (an example of the first indication information) to the terminal device. This indication information B indicates that the network device will send the first type of signal, or rather, this indication information B indicates that the terminal device monitors the first type of signal, such as the second signal. That is to say, although the network device indicates that it will send the first type of signal, it still directly sends the second type of signal instead of the first type of signal at the start stage of the active state of DRX cycle 1.

[0133] Exemplarily, the predefined network uses PDCCH to send control signaling to the terminal device at the start stage of the active state of each DRX cycle. That is, if before the start moment of the active state of the DRX cycle, the network indicates to the terminal device that the network will send LP-WUS, but the network will still directly send PDCCH instead of LP-WUS at the start moment of the active state of the DRX cycle. Correspondingly, the terminal device monitors PDCCH at the start stage of the active state of each DRX cycle. That is, if before the start moment of the active state of the DRX cycle, the network indicates to the terminal device to monitor LP-WUS, the terminal device will still monitor PDCCH instead of LP-WUS at the start moment of the active state of the DRX cycle.

[0134] Thus, regardless of whether the terminal device monitors the first type of signal or the second type of signal in the DRX cycle before the start of the active state in the current DRX cycle, it will monitor the second type of signal after the start of the active state in the next DRX cycle.

[0135] Optionally, the network device indicates to the terminal device the manner of sending the signal at the start stage when the duration timer (on-duration timer) corresponding to each DRX cycle is turned on or at the start stage of the DRX active state. The manner can be configured through higher-layer signaling. For example, the network device configures the type of signal to be sent at the start stage when the duration timer corresponding to each DRX cycle is turned on through RRC signaling. For instance, the network can indicate whether the terminal device monitors the PDCCH or LP-WUS, or it can also indicate whether the UE monitors the first signal or the second signal (both are LP-WUS).

[0136] That is, the value of the first indication information is used to represent the type of signal in the first time period. When the value of the first indication information is 1, it means the type of signal in the first time period is the first type. When the value of the first indication information is 0, it means the type of signal in the first time period is the second type. Or, when the value of the first indication information is 0, it means the type of signal in the first time period is the first type. When the value of the first indication information is 1, it means the type of signal in the first time period is the second type. The start moment of the first time period is the second moment, and the duration of the first time period is configured or predefined.

[0137] The start moment of the above-mentioned first time period can be any one of the start moment when the duration timer (on-duration timer) corresponding to each DRX cycle is turned on, the start moment of the DRX active state, or the timeout moment of timer B.

[0138] Specifically, an indication field can be added to the RRC signaling, such as default_monitortype_DRX. The value of this field is used to indicate the type of signal to be sent. For example:

[0139] When the value of default_monitortype_DRX is 1, it means the network device sends LP-WUS at the start stage when the on-duration timer corresponding to each DRX cycle is turned on. When the value of default_monitortype_DRX is 0, it means the network device sends PDCCH at the start stage when the on-duration timer corresponding to each DRX cycle is turned on. Or,

[0140] The value of default_monitortype_DRX is 0, indicating that the network device sends LP-WUS at the start stage of the onduration timer corresponding to each DRX cycle; the value of default_monitortype_DRX is 1, indicating that the network device sends PDCCH at the start stage of the onduration timer corresponding to each DRX cycle.

[0141] Optionally, the first indication information may also be carried on the PDCCH or MAC CE.

[0142] In another example, when the network configures the second configuration parameter, the network device can configure the signal sending method at the start stage of the duration timer corresponding to each DRX cycle through RRC signaling, that is, send one of the first signal, the second signal, and the third signal (equivalent to indicating with 2 bits). For example, when the value of default_monitortype_DRX is 00, it means that the network device sends the first signal at the start stage of the onduration timer corresponding to each DRX cycle; when the value of default_monitortype_DRX is 01, it means that the network device sends the second signal at the start stage of the onduration timer corresponding to each DRX cycle; when the value of default_monitortype_DRX is 10, it means that the network device sends the third signal at the start stage of the onduration timer corresponding to each DRX cycle.

[0143] It should be understood that the above numerical values and the meanings represented by these numerical values are only examples.

[0144] When the terminal device monitors WUS, it generally does not report channel state information. In the embodiments of the present application, when the terminal device monitors WUS for a period of time and this period exceeds a preset value, the terminal device can report channel state information to the network device. For example, when the duration of the terminal device using the first configuration parameter to monitor the first signal is greater than or equal to the second time period, and starts to monitor the third signal from the second moment, the duration of the second time period is configured or predefined. Optionally, the terminal device can also send channel state information to the network device.

[0145] For example, as Figure 4 shown, the terminal device continuously monitors LP-WUS in the first time period, and at this time the terminal device does not perform CSI reporting. When the above process lasts for a time period exceeding the preset value, the terminal device will resume CSI reporting and start blind detecting the PDCCH.

[0146] Among them, the methods for the terminal device to resume CSI reporting include but are not limited to the following methods:

[0147] Method 1: When the terminal device is configured with a periodic CSI reporting method, when the duration of monitoring the first signal is greater than or equal to the second time period, the terminal device starts to report CSI according to the CSI reporting method configured by the network.

[0148] Method 2: When the terminal device is configured with a semi-persistent / aperiodic CSI reporting method, the terminal device can start to monitor the corresponding PDCCH.

[0149] In this method, through predefined or configured means, when the terminal device monitors signals in low-power modes such as LP-WUS, it can timely change the monitoring method to meet the monitoring requirements of different channel states and improve the monitoring performance.

[0150] It can be understood that, in order to implement the functions in the above embodiments, the base station and the terminal include corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should easily realize that, combining the units and method steps of each example described in the embodiments disclosed in this application, this application can be implemented in the form of hardware or a combination of hardware and computer software. Whether a certain function is executed in the way of hardware or computer software driving hardware depends on the specific application scenario and design constraint conditions of the technical solution.

[0151] Figure 5 and Figure 6 FIG. is a schematic structural diagram of a possible communication device provided by an embodiment of the present application. These communication devices can be used to implement the functions of the terminal or the base station in the above method embodiments, and thus can also achieve the beneficial effects possessed by the above method embodiments. In the embodiments of the present application, the communication device can be one of the terminals 120a - 120j shown in Figure 1 as shown, or the base station 110a or 110b shown in Figure 1 as shown, or a module (such as a chip) applied to the terminal or the base station.

[0152] such as Figure 5 as shown, the communication device 500 includes a processing unit 510 and a transceiver unit 520. The communication device 500 is used to implement the functions of the terminal device or the network device in the method embodiment shown in the above Figure 3 .

[0153] When the communication device 500 is used to implement the function of the terminal device in the method embodiment shown in Figure 3 as shown: the transceiver unit 520 can be used to receive the first indication information, the second indication information, the first configuration parameter, etc.; the processing unit 510 is used to monitor the first signal, the second signal, or the third signal, etc.;

[0154] When the communication device 500 is used to implement Figure 3 the functions of the network device in the method embodiments shown: The transceiver unit 520 is used to send the first indication information, the second indication information, the first configuration parameter, etc.

[0155] For a more detailed description of the above processing unit 510 and transceiver unit 520, reference can be directly made to Figure 3 the relevant descriptions in the method embodiments shown and will not be elaborated here.

[0156] As Figure 6 shown, the communication device 600 includes a processor 610 and an interface circuit 620. The processor 610 and the interface circuit 620 are coupled to each other. It can be understood that the interface circuit 620 can be a transceiver or an input / output interface. Optionally, the communication device 600 may further include a memory 630 for storing instructions executed by the processor 610 or storing input data required for the processor 610 to run the instructions or storing data generated after the processor 610 runs the instructions.

[0157] When the communication device 600 is used to implement Figure 3 the method shown, the processor 610 is used to implement the functions of the above processing unit 510, and the interface circuit 620 is used to implement the functions of the above transceiver unit 520.

[0158] When the above communication device is a chip applied to a terminal, the terminal chip implements the functions of the terminal in the above method embodiments. The terminal chip receives information from other modules (such as a radio frequency module or an antenna) in the terminal, and this information is sent by the base station to the terminal; or, the terminal chip sends information to other modules (such as a radio frequency module or an antenna) in the terminal, and this information is sent by the terminal to the base station.

[0159] When the above communication device is a module applied to a base station, the base station module implements the functions of the base station in the above method embodiments. The base station module receives information from other modules (such as a radio frequency module or an antenna) in the base station, and this information is sent by the terminal to the base station; or, the base station module sends information to other modules (such as a radio frequency module or an antenna) in the base station, and this information is sent by the base station to the terminal. Here, the base station module can be a baseband chip of the base station, or a DU or other modules. Here, the DU can be a DU under the open radio access network (O-RAN) architecture.

[0160] It can be understood that the processor in the embodiments of the present application may be a central processing unit (CPU), or may also be other general-purpose processors, digital signal processors (DSPs), application specific integrated circuits (ASICs), field programmable gate arrays (FPGAs), or other programmable logic devices, transistor logic devices, hardware components, or any combination thereof. The general-purpose processor may be a microprocessor or any conventional processor.

[0161] The method steps in the embodiments of the present application may be implemented in hardware or in software instructions executable by a processor. The software instructions may be composed of corresponding software modules, and the software modules may be stored in a random access memory, flash memory, read-only memory, programmable read-only memory, erasable programmable read-only memory, electrically erasable programmable read-only memory, registers, hard disk, removable hard disk, CD-ROM, or any other form of storage medium well-known in the art. An exemplary storage medium is coupled to the processor so that the processor can read information from the storage medium and write information to the storage medium. The storage medium may also be a component of the processor. The processor and the storage medium may be located in an ASIC. Additionally, the ASIC may be located in a base station or a terminal. The processor and the storage medium may also exist as discrete components in the base station or the terminal.

[0162] 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 programs or instructions. When the computer program or instructions are loaded and executed on a computer, the processes or functions described in the embodiments of the present application are executed in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, a network device, a user device, or other programmable devices. The computer program or instructions may be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer program or instructions may be transmitted from one website, computer, server, or data center to another website, computer, server, or data center in a wired or wireless manner. The computer-readable storage medium may be any available medium that can be accessed by a computer or a data storage device such as a server or data center integrating one or more available media. The available medium may be a magnetic medium, such as a floppy disk, a hard disk, or a magnetic tape; it may also be an optical medium, such as a digital video disc; or it may be a semiconductor medium, such as a solid-state drive. The computer-readable storage medium may be a volatile or non-volatile storage medium, or may include both volatile and non-volatile types of storage media.

[0163] In various embodiments of the present application, if there is no special description and logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced to each other. The technical features in different embodiments can be combined to form new embodiments according to their internal logical relationships.

[0164] According to whether the specification uses optional: In the present application, "at least one" means one or more, and "a plurality" means two or more. "And / or" describes the association relationship of associated objects and indicates that there can be three relationships. For example, A and / or B can represent the following situations: A exists alone, B exists alone, or both A and B exist simultaneously, where A and B can be singular or plural. In the textual description of the present application, the character " / " generally represents an "or" relationship between the associated objects before and after; in the formulas of the present application, the character " / " represents a "division" relationship between the associated objects before and after. "At least one of the following" or its similar expressions are used to represent any combination of the items listed; for example, at least one of A, B, and (or) C can represent the following situations: A exists alone, B exists alone, C exists alone, both A and B exist simultaneously, both B and C exist simultaneously, both A and C exist simultaneously, or all of A, B, and C exist simultaneously, where A, B, and C can be singular or plural.

[0165] It is understood that the various numerical numbers involved in the embodiments of the present application are only for the convenience of description and are not used to limit the scope of the embodiments of the present application. The magnitudes of the serial numbers of the above processes do not mean the sequence of execution, and the execution sequence of each process should be determined by its function and internal logic.

Claims

1. A communication method, characterized in that, it includes: Entering a first mode at a first moment, monitoring a first signal using first configuration parameters, the type of the first signal being a first type, and the signal of the first type being used to wake up a second mode of a terminal device, where the power consumption of the second mode is greater than that of the first mode; In the case of not receiving the first signal, starting from a second moment, monitoring a second signal using second configuration parameters or starting to monitor a third signal from the second moment, the type of the second signal being the first type, the type of the third signal being a second type, and the signal of the second type being a signal in the second mode.

2. The method according to claim 1, characterized in that, the starting to monitor the second signal using the second configuration parameters or starting to monitor the third signal from the second moment includes: When a first timer times out, starting from the second moment, monitoring the second signal using the second configuration parameters, or starting to monitor the third signal from the second moment, and the running duration of the first timer is the duration of monitoring the first signal using the first configuration parameters.

3. The method according to claim 1, characterized in that, the second moment is the start moment of the active state of a first discontinuous reception (DRX) cycle.

4. The method according to claim 3, characterized in that, when starting to monitor the third signal from the second moment, the method further includes: Receiving first indication information, where the first indication information indicates that the terminal device monitors the second signal.

5. The method according to claim 4, characterized in that, the first indication information is carried in radio resource control (RRC) signaling, a physical downlink control channel (PDCCH), or a media access control control element (MAC CE).

6. The method according to claim 4 or 5, characterized in that, the value of the first indication information is used to represent the signal type within a first time period, the start moment of the first time period being the second moment, and the duration of the first time period being configured or predefined.

7. The method according to claim 1, characterized in that, when starting to monitor the third signal from the second moment, it includes: When the duration of monitoring the first signal using the first configuration parameters is greater than or equal to a second time period, starting to monitor the third signal from the second moment, and the duration of the second time period is configured or predefined.

8. The method according to claim 7, characterized in that, the method further includes: Sending channel state information.

9. The method according to any one of claims 1 to 8, characterized in that, entering the first mode at the first moment includes: Receiving second indication information, where the second indication information indicates that the terminal device enters the first mode, or, When a second timer times out, entering the first mode at the first moment, and the running duration of the second timer is the duration of monitoring the signal of the second type before entering the first mode.

10. The method according to claim 9, characterized in that, the second indication information is carried in downlink control information (DCI) or MAC CE.

11. The method according to claim 1, It is characterized in that the first configuration parameter and / or the second configuration parameter indicate at least one of a repetition manner, a repetition times, or time-frequency resources of the first type of signal.

12. A communication method It is characterized in that including: notifying a terminal device to enter a first mode at a first moment, and monitoring a first signal by using a first configuration parameter, where the type of the first signal is a first type, and the first type of signal is used to wake up a second mode of the terminal device, and the power consumption of the second mode is greater than that of the first mode; determining a second moment, where the second moment is used for the terminal device to start monitoring a second signal or start monitoring a third signal by using a second configuration parameter, the type of the second signal is the first type, the type of the third signal is a second type, and the second type of signal is a signal in the second mode.

13. The method according to claim 12 It is characterized in that determining the second moment includes: configuring a first timer, where an operation duration of the first timer is a duration for the terminal device to monitor the first signal by using the first configuration parameter, and the second moment is a moment when the first timer times out or a moment after the first timer times out.

14. The method according to claim 12 It is characterized in that the second moment is a start moment of an active state of a first DRX cycle.

15. The method according to claim 14 It is characterized in that the second moment is used for the terminal device to start monitoring the third signal, and the method further includes: sending a first indication message, where the first indication message indicates that the terminal device monitors the second signal.

16. The method according to claim 15 It is characterized in that the first indication message is carried in an RRC signaling, a PDCCH, or a MAC CE.

17. The method according to claim 15 or 16 It is characterized in that a value of the first indication message is used to represent a signal type within a first time period, a start moment of the first time period is the second moment, and a duration of the first time period is configured or predefined.

18. The method according to claim 12 It is characterized in that the second moment is used for the terminal device to start monitoring the third signal, including: when a duration for the terminal device to monitor the first signal by using the first configuration parameter is greater than or equal to a second time period, determining the second moment, where a duration of the second time period is configured or predefined.

19. The method according to claim 18 It is characterized in that the method further includes: receiving channel state information.

20. The method according to any one of claims 12 to 19 It is characterized in that notifying the terminal device to enter the first mode at the first moment includes: sending a second indication message, where the second indication message indicates that the terminal device enters the first mode, or configuring a second timer, and when the second timer times out, indicating that the terminal device enters the first mode at the first moment, where an operation duration of the second timer is a duration for the terminal device to monitor the second type of signal before entering the first mode.

21. The method according to claim 20, wherein, the second indication information is carried in downlink control information DCI or MAC CE.

22. The method according to claim 12, wherein, the first configuration parameter and / or the second configuration parameter indicate at least one of a repetition manner, a repetition number, or time-frequency resources of the first type of signal.

23. A communication device, wherein, comprising a processing module and a transceiver module, and the communication device is configured to perform the method according to any one of claims 1 to 11.

24. A communication device, wherein, comprising a processing module and a transceiver module, and the communication device is configured to perform the method according to any one of claims 12 to 22.

25. A communication device comprising a processor, the processor is connected to a memory, the memory is configured to store a computer program, and the processor is configured to execute the computer program stored in the memory, so that the device performs the method according to any one of claims 1 to 26.

26. A communication system, wherein, comprising the communication devices according to claims 24 and 25.

27. A computer-readable storage medium, wherein, the computer-readable storage medium is configured to store a computer program, and when the computer program runs on a computer, the computer is caused to perform the method according to any one of claims 1 to 22.

28. A chip, wherein, comprising a processor and a communication interface, and the processor is configured to read instructions to perform the method according to any one of claims 1 to 22.

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