Physical downlink control channel monitoring method and terminal device

Abstract

The present application provides a physical downlink control channel monitoring method and a terminal device. The terminal device receives a number of cycles sent by a network device, wherein the number of cycles is a positive integer N; a low-power wake-up signal is monitored within N cycles, wherein the low-power wake-up signal is used for triggering the terminal device to monitor a physical downlink control channel; when no low-power wake-up signal is detected within the N cycles, a connected-discontinuous reception mechanism is used upon the end of the N cycles to monitor the physical downlink control channel. In this way, although the terminal device fails to detect a low-power wake-up signal, the terminal device can still use a connected-discontinuous reception mechanism to monitor a physical downlink control channel, thereby avoiding the situation where the terminal device is unable to monitor the physical downlink control channel for a long period of time due to the weak anti-interference capability of the low-power wake-up signal, effectively improving the reliability of monitoring the physical downlink control channel.

Description

A method and terminal device for monitoring the physical downlink control channel

[0001] This application claims priority to Chinese Patent Application No. 202411587558.4, filed on November 7, 2024, entitled "A Physical Downlink Control Channel Monitoring Method and Terminal Equipment", the entire contents of which are incorporated herein by reference. Technical Field

[0002] This application relates to the field of communication technology, and in particular to a physical downlink control channel monitoring method and terminal equipment. Background Technology

[0003] Low-Power Wake-Up Signal (LP-WUS) is a technology that can wake up a terminal device from a low-power or sleep state. This technology reduces power consumption in standby mode, thereby improving battery life.

[0004] Currently, terminal devices can enter a wake-up state after receiving a low-power wake-up signal from a network device, and remain in the wake-up state for a certain period of time, while remaining in a sleep state at other times. When the terminal device is in the wake-up state, it can listen to the Physical Downlink Control Channel (PDCCH), while when the terminal device is in the sleep state, it does not listen to the PDCCH, thereby reducing the power consumption of the terminal device.

[0005] However, low-power wake-up signals have weak anti-interference capabilities. Under conditions of significant interference, terminal devices may have difficulty receiving the low-power wake-up signal, resulting in the inability of the terminal device to listen to the PDCCH. Therefore, a solution is urgently needed to address the above problem. Summary of the Invention

[0006] This application provides a physical downlink control channel monitoring method and terminal equipment.

[0007] To achieve the above objectives, this application adopts the following technical solution:

[0008] Firstly, this application provides a physical downlink control channel (PHC) monitoring method applied to a terminal device. This method involves receiving a number of cycles sent by a network device; monitoring a low-power wake-up signal within N cycles; the low-power wake-up signal triggers the terminal device to monitor the PHC; and when no low-power wake-up signal is detected within N cycles, a connected discontinuous reception (CDRX) mechanism is used to monitor the PHC after the N cycles have ended. The CDRX mechanism is a mechanism that uses a wireless receiver (MR) to monitor the PHC.

[0009] This application provides a method for monitoring the physical downlink control channel (PHC). A terminal device can monitor a low-power wake-up signal (LWPS) for N cycles, based on the number of cycles transmitted by the network device. If the LWPS is not detected within N cycles, a connected-state discontinuous reception mechanism is used to monitor the PHC after the N cycles have ended. Therefore, even if the terminal device cannot detect the LWPS, it can still monitor the PHC using the connected-state discontinuous reception mechanism, which is independent of the LWPS. This avoids the terminal device being unable to monitor the PHC for extended periods due to the weak anti-interference capability of the LWPS, effectively improving the reliability of PHC monitoring.

[0010] In one possible implementation, the N cycles include at least one of the N CDRX cycles and the N cycles for listening to low-power wake-up signals.

[0011] In one possible implementation, when no low-power wake-up signal is detected within N cycles, a connected discontinuous reception mechanism is used to monitor the physical downlink control channel after the N cycles have ended. This includes: when no low-power wake-up signal is detected within N cycles, the connected discontinuous reception mechanism is used to monitor the physical downlink control channel starting from the first CDRX cycle after the N cycles have ended.

[0012] In one possible implementation, the terminal device may detect a low-power wake-up signal used to wake up other terminal devices. To determine whether the detected low-power wake-up signal is for waking up itself, in this embodiment, the terminal device monitors the identification information corresponding to the low-power wake-up signal for N cycles. It then detects whether the identification information matches the terminal device, thus determining whether the detected low-power wake-up signal is for waking up itself. If no matching identification information is detected within N cycles, a connected discontinuous reception mechanism is used to monitor the physical downlink control channel after the N cycles have ended.

[0013] In one possible implementation, when no low-power wake-up signal is detected within N cycles, a connected-state discontinuous reception mechanism is used to monitor the physical downlink control channel after the N cycles have ended. This includes: sending a notification message to the network device when no low-power wake-up signal is detected within N cycles; and using the connected-state discontinuous reception mechanism to monitor the physical downlink control channel after the N cycles have ended. The notification message is used to notify the network device and the terminal device to use the connected-state discontinuous reception mechanism to monitor the physical downlink control channel after the current cycle has ended.

[0014] In one possible implementation, N cycles refer to N CDRX cycles. When no low-power wake-up signal is detected within N cycles, a notification message is sent to the network device, including: when no low-power wake-up signal is detected within the wake-up duration On Duration Timer of the last CDRX cycle of N CDRX cycles, a notification message is sent to the network device at a preset offset time after On Duration Timer.

[0015] In one possible implementation, the preset offset time includes: the start time of the last CDRX cycle plus a first offset; or, the end time of the On Duration Timer plus a second offset; or, after the N CDRX cycles have ended, the start time of the On Duration Timer of the first CDRX cycle minus a third offset.

[0016] In one possible implementation, when no low-power wake-up signal is detected within N cycles, a notification message is sent to the network device. After the N cycles, a connected-state discontinuous reception mechanism is used to monitor the physical downlink control channel. This includes: sending a notification message to the network device when no low-power wake-up signal is detected within N cycles; receiving an acknowledgment message from the network device; and using the connected-state discontinuous reception mechanism to monitor the physical downlink control channel after the N cycles. The acknowledgment message is sent by the network device to the terminal device after receiving the notification message, and is used to deactivate the terminal device's ability to monitor the low-power wake-up signal.

[0017] In this embodiment of the application, after receiving the confirmation information sent by the network device, the terminal device uses a connected discontinuous reception mechanism to listen to the physical downlink control channel after N cycles, which can achieve the purpose of bidirectional confirmation.

[0018] Secondly, this application provides a physical downlink control channel (PLC) monitoring method applied to a terminal device. The method involves receiving a monitoring duration sent by a network device; monitoring a low-power wake-up signal within the monitoring duration; the low-power wake-up signal triggering the terminal device to monitor the PLC; and when no low-power wake-up signal is detected within the monitoring duration, a connected discontinuous reception mechanism is used to monitor the PLC, where the CDRX mechanism is a mechanism using a wireless receiver to monitor the PLC.

[0019] This application provides a method for monitoring the Physical Downlink Control Channel (PLC). A terminal device can monitor the PLC for a specified duration provided by the network device. If no low-power wake-up signal is detected within this duration, the device begins monitoring the PLC using a connected-state discontinuous reception mechanism after the duration ends. Therefore, even if the terminal device cannot detect the low-power wake-up signal, it can still monitor the PLC using the connected-state discontinuous reception mechanism, which is independent of the low-power wake-up mechanism. This avoids the terminal device being unable to monitor the PLC for extended periods due to the weak anti-interference capability of the low-power wake-up signal, effectively improving the reliability of PLC monitoring.

[0020] In one possible implementation, listening for a low-power wake-up signal during the listening period includes: listening for the identification information corresponding to the low-power wake-up signal during the listening period; detecting whether the identification information corresponding to the low-power wake-up signal matches the terminal device; and when no identification information matching the terminal device is detected during the listening period, using a connected discontinuous reception mechanism to listen for the physical downlink control channel.

[0021] In one possible implementation, when no low-power wake-up signal is detected within the listening period, a connected-state discontinuous reception mechanism is used to listen to the physical downlink control channel. This includes: when no low-power wake-up signal is detected within the listening period, sending a notification message to the network device, and using the connected-state discontinuous reception mechanism to listen to the physical downlink control channel. The notification message is used to notify the network device that the terminal device will use the connected-state discontinuous reception mechanism to listen to the physical downlink control channel after the listening period ends.

[0022] In one possible implementation, when no low-power wake-up signal is detected within the listening period, a connection-mode discontinuous reception mechanism is used to listen to the physical downlink control channel, including: sending a notification message to the network device when no low-power wake-up signal is detected within the listening period; receiving an acknowledgment message sent by the network device; and using the connection-mode discontinuous reception mechanism to listen to the physical downlink control channel, wherein the acknowledgment message is used to deactivate the terminal device from listening to the low-power wake-up signal.

[0023] Thirdly: This application provides a physical downlink control channel (PHC) monitoring method applied to a network device. It configures a number of cycles, where the number of cycles is a positive integer N. The number of cycles indicates the number of cycles the terminal device receives from the network device. Within N cycles, a low-power wake-up signal is monitored. The low-power wake-up signal triggers the terminal device to monitor the PHC. When no low-power wake-up signal is detected within N cycles, a connected discontinuous reception mechanism is used to monitor the PHC after the N cycles have ended. The CDRX mechanism is a mechanism that uses a wireless receiver to monitor the PHC. The number of cycles is then sent to the terminal device.

[0024] In one possible implementation, the N cycles include at least one of the N CDRX cycles and the N cycles for listening to low-power wake-up signals.

[0025] In one possible implementation, after sending the number of cycles to the terminal device, the method further includes: sending an acknowledgment message to the terminal device in response to the notification message sent by the terminal device; the notification message is used to notify the network device that the terminal device will use a connected discontinuous reception mechanism to listen to the physical downlink control channel after the current cycle ends; the acknowledgment message is used to deactivate the terminal device from listening to the low-power wake-up signal.

[0026] In one possible implementation, after sending the number of cycles to the terminal device, the method further includes: sending a low-power wake-up signal and a physical downlink control channel to the terminal device; when no feedback information is received from the terminal device, incrementing the cycle count of the network device by 1 to obtain the count value of the network device; when the count value of the network device reaches the configured value, sending a low-power wake-up signal to the terminal device and sending downlink control information within the wake-up timer of the CDRX cycle.

[0027] Fourthly, this application provides a physical downlink control channel (PHC) monitoring method applied to a network device. The method involves configuring a monitoring duration; the monitoring duration instructs the terminal device to receive the monitoring duration sent by the network device; monitoring for a low-power wake-up signal within the monitoring duration; the low-power wake-up signal triggers the terminal device to monitor the PHC; when no low-power wake-up signal is detected within the monitoring duration, a connected discontinuous reception mechanism is used to monitor the PHC, where the CDRX mechanism is a mechanism using a wireless receiver to monitor the PHC; and the monitoring duration is sent to the terminal device.

[0028] Fifth aspect: This application provides a terminal device, which includes a processor and a memory;

[0029] The memory is used to store program code and transmit the program code to the processor;

[0030] The processor is used to execute the steps of a physical downlink control channel monitoring method as described above, according to the instructions in the program code. Attached Figure Description

[0031] Figure 1 is a schematic diagram of an existing LP-WUS-based method for monitoring the physical downlink control channel;

[0032] Figure 2 is a schematic diagram of an application scenario provided by an embodiment of this application for monitoring the physical downlink control channel within the coverage area of ​​a low-power wake-up signal;

[0033] Figure 3 is a schematic diagram of the hardware composition of a terminal device provided in an embodiment of this application;

[0034] Figure 4 is a schematic diagram of the first physical downlink control channel monitoring method provided in the embodiments of this application;

[0035] Figure 5 is a schematic diagram of a method for monitoring low-power wake-up signals according to an embodiment of this application;

[0036] Figure 6 is a schematic diagram of the CDRX mechanism;

[0037] Figure 7 is a schematic diagram of the first type of monitoring physical downlink control channel provided in the embodiments of this application;

[0038] Figure 8 is a schematic diagram of the second type of monitoring physical downlink control channel provided in an embodiment of this application;

[0039] Figure 9 is a schematic diagram of the third type of monitoring physical downlink control channel provided in the embodiments of this application;

[0040] Figure 10 is a schematic diagram of the fourth type of monitoring physical downlink control channel provided in the embodiments of this application;

[0041] Figure 11 is a schematic diagram of sending notification information according to an embodiment of this application;

[0042] Figure 12 is a schematic diagram of determining the time point for sending notification information according to an embodiment of this application;

[0043] Figure 13 is a schematic diagram of the second physical downlink control channel monitoring method provided in the embodiment of this application;

[0044] Figure 14 is a schematic diagram of the fifth type of monitoring physical downlink control channel provided in the embodiments of this application;

[0045] Figure 15 is a schematic diagram of another method for sending notification information provided in an embodiment of this application;

[0046] Figure 16 is a schematic diagram of the sixth type of monitoring physical downlink control channel provided in the embodiments of this application;

[0047] Figure 17 is a schematic diagram of the seventh type of monitoring physical downlink control channel provided in the embodiments of this application;

[0048] Figure 18 is a schematic diagram of the third physical downlink control channel monitoring method provided in the embodiments of this application. Detailed Implementation

[0049] The terms "first," "second," and "third," etc., used in this application specification, claims, and drawings are used to distinguish different objects, not to limit a specific order.

[0050] In the embodiments of this application, the terms "exemplary" or "for example" are used to indicate that something is an example, illustration, or description. Any embodiment or design that is described as "exemplary" or "for example" in the embodiments of this application should not be construed as being more preferred or advantageous than other embodiments or design. Specifically, the use of the terms "exemplary" or "for example" is intended to present the relevant concepts in a specific manner.

[0051] Low-power wake-up signal (LP-WUS) is a technology that can wake up a terminal device from a low-power or sleep state to listen to the physical downlink control channel. Figure 1 shows a schematic diagram of an existing LP-WUS-based method for listening to the physical downlink control channel.

[0052] After a terminal device detects a low-power wake-up signal, it can remain in a wake-up state for a period of time. As shown in the figure, after receiving the low-power wake-up signal, the terminal device enters the wake-up state after a certain time delay (offset). That is, the terminal device is in a wake-up state during the period marked "monitoring the Physical Downlink Control Channel (PDCCH)". During the wake-up period, the terminal device can monitor the PDCCH; at other times, the terminal device is in a sleep state and does not monitor the PDCCH, thereby reducing the power consumption of the terminal device.

[0053] Because the Low Power Wake-up Signal (LPWS) was originally designed for small, power-sensitive, static, limited-mobility, and slow-moving devices, it has relatively weak anti-interference capabilities. Consequently, in situations with significant interference, the terminal device may have difficulty receiving the LWS, preventing it from listening to the PDCCH and thus from receiving data.

[0054] Based on this, this application provides a method for monitoring the physical downlink control channel. If the terminal device does not detect a low-power wake-up signal within N cycles, it exits the mode of monitoring the physical downlink control channel by monitoring the low-power wake-up signal and instead uses a connected discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel. Monitoring the physical downlink control channel based on the CDRX mechanism does not rely on the low-power wake-up signal, thereby avoiding the terminal device's inability to monitor the physical downlink control channel for extended periods due to the weak anti-interference capability of the low-power wake-up signal, and effectively improving the reliability of monitoring the physical downlink control channel.

[0055] The application scenarios provided by the embodiments of this application are described below with reference to Figures 2 and 3. Figure 2 is a schematic diagram of an application scenario provided by an embodiment of this application for monitoring the physical downlink control channel within the coverage area of ​​a low-power wake-up signal, and Figure 3 is a schematic diagram of the hardware composition of a terminal device provided by an embodiment of this application.

[0056] In Figure 2, when the terminal device 1100 is in a connected state and within the low-power wake-up signal coverage area 1101, the network device 1102 can trigger the terminal device to listen for the low-power wake-up signal through Radio Resource Control (RRC) signaling.

[0057] Among them, network equipment 1102 includes, but is not limited to, base stations, core network units, etc.

[0058] It is understood that the low-power wake-up signal coverage range 1101 and the wireless signal coverage range 1103 are not specifically limited in this embodiment of the application. For example, the wireless signal coverage range 1103 may be greater than or equal to the low-power wake-up signal coverage range 1101, or it may be less than the low-power wake-up signal coverage range 1101. Here, we only introduce the example that the wireless signal coverage range 1103 may be greater than the low-power wake-up signal coverage range 1101.

[0059] For example, as shown in Figure 3, this figure is a schematic diagram of the hardware composition of a terminal device provided in an embodiment of this application. The terminal device can be a terminal, including but not limited to mobile phones, smart wearable devices (such as smartwatches), etc. Taking a mobile phone as an example below, the terminal device may include a processor 110, an antenna 121, an antenna 131, a low-power wake-up receiver 120, and a wireless receiver 130, etc.

[0060] It is understood that the structure illustrated in this embodiment does not constitute a specific limitation on the terminal device. In other embodiments, the terminal device may include more or fewer components than illustrated, or combine some components, or split some components, or have different component arrangements. The illustrated components may be implemented in hardware, software, or a combination of software and hardware.

[0061] The terminal device provided in this application embodiment is configured with both a low-power wake-up receiver (LR) 120 and a wireless receiver (MR) 130. The low-power wake-up receiver 120 of the terminal device can listen for low-power wake-up signals through antenna 121, and the wireless receiver 130 can listen for physical downlink control channels based on the CDRX mechanism through antenna 131.

[0062] Since the power consumption of LR is lower than that of MR, compared with the method of using MR to listen to the physical downlink control channel based on the CDRX mechanism, the method of using LR to listen to the low-power wake-up signal to listen to the physical downlink control channel can effectively reduce the power consumption of terminal equipment.

[0063] To reduce the power consumption of the terminal device, in one example, the processor 110 of the terminal device can receive a number of cycles sent by the network device, which can be a positive integer N; during these N cycles, LR is used to listen for low-power wake-up signals. During this period, MR can be in a sleep state.

[0064] The N cycles can be at least one of the N CDRX cycles and the N cycles for listening to low-power wake-up signals.

[0065] If the terminal device detects a low-power wake-up signal using LR within the N cycles, it can enter the wake-up state and start listening to the physical downlink control channel. If the terminal device does not detect a low-power wake-up signal within the N cycles, it will exit the method of using LR to listen to the low-power wake-up signal to listen to the physical downlink control channel, and instead use MR based on the CDRX mechanism to listen to the physical downlink control channel.

[0066] In another example, the terminal device processor 110 can receive a listening duration sent by the network device, during which it uses LR to listen for low-power wake-up signals. During this period, MR can be in a sleep state.

[0067] If the terminal device detects a low-power wake-up signal using LR within the listening time, it can enter the wake-up state and begin listening to the physical downlink control channel. If the terminal device fails to detect the physical downlink control channel within the listening time, it will exit the method of using LR to detect the low-power wake-up signal and instead use MR based on the CDRX mechanism to listen to the physical downlink control channel.

[0068] It is understood that the specific values ​​of the number of cycles and the listening duration are not specifically limited in the embodiments of this application, and they can be configured according to actual needs.

[0069] In addition, the terminal device can run an operating system on top of the aforementioned components. Examples include iOS, Android, and Windows operating systems. Applications can be installed and run on the operating system. Those skilled in the art will understand that, for the sake of convenience and brevity, explanations and beneficial effects of the relevant content in any of the terminal devices provided above can be found in the corresponding method embodiments provided in this application, and will not be repeated here.

[0070] The physical downlink control channel monitoring method provided in this application embodiment is described below with reference to the accompanying drawings.

[0071] As shown in Figure 4, this figure is a schematic diagram of the first physical downlink control channel monitoring method provided in the embodiment of this application.

[0072] S101. The terminal device receives configuration information sent by the network device.

[0073] The configuration information may include, but is not limited to, the configuration information of CDRX and the configuration information of the low-power wake-up signal. The CDRX configuration information includes the wake-up duration of CDRX; the configuration information of the low-power wake-up signal includes the cycle of listening to the low-power wake-up signal, the offset time of listening to the low-power wake-up signal, the duration of listening to the low-power wake-up signal, and the number of CDRX cycles (cdrxCycleN).

[0074] Among them, the wake-up duration of CDRX indicates that when the CDRX mechanism is used, the physical downlink control channel can be monitored within the wake-up duration of CDRX; the period for monitoring low-power wake-up signals is the duration of two consecutive monitoring of low-power wake-up signals; the duration of monitoring low-power wake-up signals indicates the duration of monitoring one low-power wake-up signal; the number of CDRX periods is a positive integer N, which is used to instruct the terminal device to use LR to monitor low-power wake-up signals within the N CDRX periods.

[0075] S102. Based on the configuration information, the terminal device listens for the low-power wake-up signal within N CDRX cycles.

[0076] The low-power wake-up signal is used to trigger the terminal device to listen to the physical downlink control channel.

[0077] It is understood that the period of CDRX in the embodiments of this application can be continuous or discontinuous, long or short, and the embodiments of this application do not specifically limit it.

[0078] For ease of understanding, let's take an example where the number of cycles for CDRX is 1.

[0079] When the configuration information includes cdrxCycleN=1, it indicates that the number of CDRX cycles is 1. The terminal device can listen for the low-power wake-up signal within 1 CDRX cycle.

[0080] The listening for the low-power wake-up signal in this embodiment can be periodic or non-periodic. Here, we will take the periodic listening for the low-power wake-up signal as an example. As shown in Figure 5, within one CDRX cycle, the terminal device can listen for the low-power wake-up signal once in each cycle of listening for the low-power wake-up signal. The duration of each listening for the low-power wake-up signal is the duration of the low-power wake-up signal shown in the figure.

[0081] During each period of listening for a low-power wake-up signal, a low-power wake-up signal may or may not be heard.

[0082] If the terminal device does not detect a low-power wake-up signal within N CDRX cycles, it can execute S103 to use the CDRX mechanism to monitor the physical downlink control channel after the N CDRX cycles have ended.

[0083] In one possible implementation, the CDRX cycle count is 1. If the terminal device does not detect a low-power wake-up signal within one CDRX cycle, it will use the CDRX mechanism to listen to the physical downlink control channel after the CDRX cycle ends.

[0084] Connected Discontinuous Reception (CDRX) is a strategy that allows a terminal device to enter a sleep state at certain times. When the terminal device is awake, it can listen to the physical downlink control channel, but when it is asleep, it does not listen to the physical downlink control channel.

[0085] Figure 6 illustrates the principle of the CDRX mechanism. During the "On Duration" period, the terminal device is awake and can listen to the physical downlink control channel (PHC). During the "Opportunity for DRX" period, the terminal device is asleep and does not listen to the PHC. A CDRX cycle can include one On Duration and one Sleep Duration. The duration of the On Duration is the wake-up time within the CDRX cycle.

[0086] It is understood that the starting time of a CDRX cycle is not specifically limited in the embodiments of this application. Here, we only take the CDRX cycle starting from one activation period and ending at the end of the next activation period as an example for introduction.

[0087] As shown in Figure 7, when the CDRX cycle count is 1, if the terminal device does not detect a low-power wake-up signal within one CDRX cycle, it can monitor the physical downlink control channel during the active period of the second CDRX cycle. The terminal device does not need to detect the low-power wake-up signal during the active period of the second CDRX cycle to monitor the physical downlink control channel. This avoids the situation where the terminal device cannot monitor the physical downlink control channel due to a weak or heavily interfered low-power wake-up signal, thus improving the reliability of physical downlink control channel monitoring.

[0088] In this embodiment of the application, the reasons why the terminal device does not detect the low-power wake-up signal used to wake up the terminal device include, but are not limited to, the following three situations:

[0089] The first scenario is that the terminal device does not detect any low-power wake-up signal.

[0090] The second scenario is that the terminal device detects a low-power wake-up signal used to wake up other terminal devices, but does not detect a low-power wake-up signal used to wake up itself.

[0091] For example, the first low-power wake-up signal and the second low-power wake-up signal are used to wake up the first terminal device and the second terminal device, respectively. When the first terminal device receives the first low-power wake-up signal, it can enter the wake-up state and start listening to the physical downlink control channel; when the first terminal device only receives the second low-power wake-up signal, it does not enter the wake-up state and does not listen to the physical downlink control channel.

[0092] The third scenario is that the terminal device detects a low-power wake-up signal used to wake itself up, but discards it because the CRC check fails.

[0093] In one possible implementation, to detect a low-power wake-up signal used to wake itself, the terminal device can listen for the identification information corresponding to the low-power wake-up signal within N CDRX cycles. It then checks whether the identification information corresponding to the low-power wake-up signal matches the terminal device.

[0094] If the identification information corresponding to the low-power wake-up signal matches the terminal device, it means that the low-power wake-up signal can wake up the terminal device and is used to trigger the terminal device to listen to the PDCCH. If the identification information corresponding to the low-power wake-up signal does not match the terminal device, it means that the low-power wake-up signal cannot wake up the terminal device and is used to trigger other terminal devices to listen to the PDCCH.

[0095] If no matching identifier is detected within N CDRX cycles, the terminal device can use the CDRX mechanism to listen to the physical downlink control channel after the N CDRX cycles have ended.

[0096] In another possible implementation, when the terminal device does not detect a low-power wake-up signal to wake itself up, it increments the cycle count by 1 every CDRX cycle. This cycle count indicates the number of CDRX cycles during which the terminal device has not detected a low-power wake-up signal to wake itself up.

[0097] Simultaneously, if the network device sends a low-power wake-up message and downlink data packets to the terminal device, the terminal device, upon receiving the low-power wake-up message, needs to send an acknowledgment (ACK) or denial (NACK) message back to the network device. If the network device does not receive an ACK or NACK message from the terminal device, the network device increments its period counter by 1 to obtain the network device's count value.

[0098] When the network device's count value reaches the configured value, a low-power wake-up signal is sent to the terminal device, and downlink control information (DCI) is sent within the CDRX's On Duration Timer.

[0099] In one possible implementation, if the terminal device has not detected a low-power wake-up signal within the On Duration Timer of the last CDRX cycle of N CDRX cycles, then the CDRX mechanism is used to listen to the physical downlink control channel after the N CDRX cycles have ended.

[0100] As shown in Figure 8, if the terminal device fails to detect a low-power wake-up signal within the CDRX wake-up duration of the second CDRX cycle (2 CDRX cycles), it will use the CDRX mechanism to monitor the physical downlink control channel in the third CDRX cycle. After the CDRX wake-up duration ends in the second CDRX cycle, monitoring for the low-power wake-up signal can be stopped.

[0101] When the terminal device detects a low-power wake-up signal within N CDRX cycles, it can execute S104, whereby the terminal device listens to the physical downlink control channel based on the low-power wake-up signal.

[0102] In one possible implementation, the terminal device can, based on the method shown in Figure 9, listen to the physical downlink control channel within the first CDRX wake-up duration after listening to the low-power wake-up signal, in conjunction with the CDRX period and CDRX wake-up duration.

[0103] In one possible implementation, the CDRX listening mechanism can be temporarily disabled, as shown in Figure 10. When the terminal device detects a low-power wake-up signal used to wake up the terminal device, it triggers physical downlink control channel listening. This listening method is suitable for receiving non-periodic data streams. When the data stream is not periodic and low latency is required, using this listening method can improve data transmission efficiency.

[0104] In another embodiment provided in this application, in order to keep the terminal device and the network device synchronized, when the terminal device does not listen to the low-power wake-up signal within N CDRX cycles, it can send a notification message to the network device to actively notify the network device that the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the N CDRX cycles are over.

[0105] In one possible implementation, as shown in Figure 11, if the terminal device does not detect a low-power wake-up signal within the On Duration Timer of the last CDRX cycle of N CDRX cycles, the terminal device may send a notification message to the network device at a preset offset time after the On Duration Timer.

[0106] During the period from the end of the On Duration Timer to the start of the On Duration Timer of the next CDRX cycle, the terminal device may continue to listen for the low-power wake-up signal or stop listening for the low-power wake-up signal.

[0107] The notification information is used to inform the network device that the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the current period ends.

[0108] For example, the notification information may be data transmission data (MO data) initiated by the terminal device, which includes, but is not limited to, the MAC Control Element (MAC CE) or Uplink Control Information (UCI).

[0109] For example, as shown in Figure 12, the preset offset time can be the start time of the last CDRX cycle plus a first offset; or, the end time of the On Duration Timer in the last CDRX cycle plus a second offset; or, the start time of the On Duration Timer of the first CDRX cycle after the last CDRX cycle ends minus a third offset.

[0110] It is understood that the values ​​of the preset offset time, the first offset, the second offset, and the third offset are not specifically limited in the embodiments of this application; the above are merely examples.

[0111] In one possible implementation, after receiving the notification information, the network device can send an acknowledgment message to the terminal device to achieve two-way confirmation.

[0112] In this context, the receipt of an acknowledgment message by the terminal device indicates that the network device has received a notification from the terminal device. This acknowledgment message can be used to deactivate the terminal device's listening for low-power wake-up signals.

[0113] In one example, if the terminal device receives an acknowledgment message before the end of N CDRX cycles, it will use the CDRX mechanism to listen to the physical downlink control channel after the end of N CDRX cycles.

[0114] If the terminal device does not receive an acknowledgment after N CDRX cycles, it will continue to use LR to listen for the low-power wake-up signal until it receives an acknowledgment. During this period, if the terminal device still does not hear the low-power wake-up signal, it can resend a notification message to the network device to inform the network device that the terminal device will use the CDRX mechanism to listen for the physical downlink control channel after the current CDRX cycle ends.

[0115] In summary, the downlink control channel monitoring method provided in this application can monitor the physical downlink control channel using the CDRX mechanism after N CDRX cycles if a low-power wake-up signal for waking up the terminal device is not detected within N CDRX cycles. Therefore, even if the terminal device cannot detect the low-power wake-up signal, it can still monitor the physical downlink control channel using the CDRX mechanism, which is independent of the low-power wake-up mechanism. This avoids the terminal device being unable to monitor the physical downlink control channel for extended periods due to the weak anti-interference capability of the low-power wake-up signal, effectively improving the reliability of physical downlink control channel monitoring and increasing data transmission efficiency.

[0116] Meanwhile, in this embodiment, if the terminal device does not detect a low-power wake-up signal within N CDRX cycles, it can send a notification to the network device to proactively notify the network device that the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the N CDRX cycles have ended. Upon receiving the notification, the network device can also send a confirmation message back to the terminal device, achieving two-way confirmation and ensuring information synchronization between the terminal device and the network device.

[0117] As shown in Figure 13, this figure is a schematic diagram of the second physical downlink control channel monitoring method provided in the embodiment of this application.

[0118] S201. The terminal device receives configuration information sent by the network device.

[0119] Unlike the above embodiments, the configuration information for the low-power wake-up signal in this configuration information includes the cycle of listening to the low-power wake-up signal, the offset time of listening to the low-power wake-up signal, the duration of listening to the low-power wake-up signal, and the number of cycles of listening to the low-power wake-up signal (lpwusCycleN).

[0120] The number of cycles for listening to the low-power wake-up signal is a positive integer N, which is used to instruct the terminal device to use LR to listen to the low-power wake-up signal within the N cycles of listening to the low-power wake-up signal.

[0121] S202. Based on the configuration information, the terminal device listens for the low-power wake-up signal within N cycles of listening for the low-power wake-up signal.

[0122] The low-power wake-up signal is used to trigger the terminal device to listen to the physical downlink control channel.

[0123] It is understood that the period for listening to the low-power wake-up signal in the embodiments of this application can be continuous or discontinuous, long or short, and the embodiments of this application do not make specific limitations on this.

[0124] For ease of understanding, let's take 12 cycles of listening to the low-power wake-up signal as an example.

[0125] When lpwusCycleN=12 is included in the configuration information, it indicates that the number of cycles for listening to the low-power wake-up signal is 12. The terminal device can listen for the low-power wake-up signal within 12 cycles.

[0126] If the terminal device does not detect a low-power wake-up signal within N cycles of listening for the low-power wake-up signal, it can execute S203, and the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the N cycles of listening for the low-power wake-up signal have ended.

[0127] In one possible implementation, the number of cycles for listening to the low-power wake-up signal is 12. If the terminal device does not detect the low-power wake-up signal within the 12 cycles, then the CDRX mechanism is used to listen to the physical downlink control channel after the 12 cycles of listening to the low-power wake-up signal have ended.

[0128] For example, as shown in Figure 14, if the terminal device does not detect a low-power wake-up signal within 12 cycles of listening for low-power wake-up signals, it can listen to the physical downlink control channel during the active period of the first CDRX cycle after the end of the 12 cycles of listening for low-power wake-up signals.

[0129] In one possible implementation, if the terminal device does not detect a low-power wake-up signal whose identification information matches the terminal device within N cycles of listening for low-power wake-up signals, then the CDRX mechanism is used to listen to the physical downlink control channel after the N cycles of listening for low-power wake-up signals have ended.

[0130] In this embodiment of the application, the low-power wake-up signal received by the terminal device may be used to wake up other terminal devices.

[0131] Based on this, the terminal device can listen for the identification information corresponding to the low-power wake-up signal during N cycles of listening for the low-power wake-up signal. It then checks whether the identification information corresponding to the low-power wake-up signal matches the terminal device.

[0132] If the identification information corresponding to the low-power wake-up signal matches the terminal device, it means that the low-power wake-up signal can wake up the terminal device and is used to trigger the terminal device to listen to the physical downlink control channel. If the identification information corresponding to the low-power wake-up signal does not match the terminal device, it means that the low-power wake-up signal cannot wake up the terminal device and is used to trigger other terminal devices to listen to the physical downlink control channel.

[0133] If no matching identifier is detected within N cycles of listening for low-power wake-up signals, the CDRX mechanism is used to listen for the physical downlink control channel after the N cycles of listening for low-power wake-up signals have ended.

[0134] In one possible implementation, when the terminal device does not detect a low-power wake-up signal to wake itself, the terminal device increments a cycle count by 1 after each cycle of detecting a low-power wake-up signal. This cycle count indicates the number of cycles during which the terminal device has not detected a low-power wake-up signal to wake itself.

[0135] Meanwhile, if the network device sends a low-power wake-up message and downlink data packets to the terminal device, the terminal device, upon receiving the low-power wake-up message, needs to send an acknowledgment (ACK) or denial (NACK) message back to the network device. If the network device does not receive an ACK or NACK message from the terminal device, the network device increments its period counter by 1 to obtain the count value.

[0136] Since the count value of the terminal device may be different from that of the network device, when the count value of the network device reaches the configured value, a low-power wake-up signal is sent to the terminal device, and downlink control information (DCI) is sent within the On Duration Timer of CDRX.

[0137] It should be noted that the size of the configuration value is not specifically limited in this embodiment of the application, and it can be set according to the actual situation.

[0138] In this embodiment of the application, when the terminal device detects a low-power wake-up signal within N cycles of detecting the low-power wake-up signal, it can execute S204, in which the terminal device detects the physical downlink control channel based on the low-power wake-up signal.

[0139] It is understandable that the specific implementation of S204 is the same as that of S104 above, and will not be repeated here.

[0140] In this embodiment of the application, in order to keep the terminal device and the network device synchronized, when the terminal device fails to detect the low-power wake-up signal within N periods of monitoring the low-power wake-up signal, it can send a notification message to the network device to actively notify the network device that the terminal device will use the CDRX mechanism to monitor the physical downlink control channel after the N periods of monitoring the low-power wake-up signal have ended.

[0141] In one possible implementation, if the terminal device does not detect a low-power wake-up signal within N cycles of listening for the low-power wake-up signal, the terminal device may send a notification message to the network device at a preset offset time after N cycles of listening for the low-power wake-up signal.

[0142] The notification information is used to inform the network device that the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the current period ends.

[0143] For example, the notification information may be data transmission data (MO data) initiated by the terminal device, which includes, but is not limited to, the MAC Control Element (MAC CE) or Uplink Control Information (UCI).

[0144] For example, as shown in Figure 15, the preset offset time can be the start time of the last cycle of listening for low-power wake-up signals plus a fourth offset; or, the start time of the On Duration Timer of the first CDRX cycle after the last cycle of listening for low-power wake-up signals ends minus a fifth offset.

[0145] It is understood that the values ​​of the fourth and fifth offsets are not specifically limited in the embodiments of this application; the above are merely examples.

[0146] In one example, as shown in Figure 16, if the terminal device sends the notification information within the On Duration Timer, the terminal device can listen to the physical downlink control channel based on the CDRX mechanism within the remaining On Duration Timer after sending the notification information.

[0147] In another example, as shown in Figure 17, if the terminal device sends the notification information outside the On Duration Timer, the terminal device can listen to the physical downlink control channel based on the CDRX mechanism within the first On Duration Timer after sending the notification information.

[0148] In one possible implementation, after receiving a notification message, the network device can reply with a confirmation message to the terminal device to achieve two-way confirmation.

[0149] The confirmation information can be used to indicate that the network device has received a notification from the terminal device.

[0150] In this embodiment of the application, the terminal device can use the CDRX mechanism to listen to the physical downlink control channel within the first On Duration Timer after receiving the confirmation information.

[0151] In one example, if the terminal device receives the acknowledgment information within the On Duration Timer, the terminal device can then listen to the physical downlink control channel based on the CDRX mechanism within the remaining On Duration Timer after receiving the acknowledgment information.

[0152] In another example, if the terminal device receives the acknowledgment information outside the On Duration Timer, the terminal device can listen to the physical downlink control channel based on the CDRX mechanism within the first On Duration Timer after receiving the acknowledgment information.

[0153] If the terminal device does not receive an acknowledgment after sending a notification message, it will continue to use the LR (Low Power Wake-up) mechanism to listen for the low-power wake-up signal until it receives an acknowledgment. During this period, if the terminal device still does not detect the low-power wake-up signal, it can resend the notification message to the network device to notify the network device that the terminal device will use the CDRX (Confirmation-Driven Response) mechanism to listen for the physical downlink control channel after the current low-power wake-up signal listening period ends.

[0154] In summary, the downlink control channel monitoring method provided in this application can monitor the physical downlink control channel using a CDRX mechanism after the N periods of monitoring low-power wake-up signals have ended, provided that no low-power wake-up signal for waking up the terminal device has been detected. Therefore, even if the terminal device cannot detect the low-power wake-up signal, it can still monitor the physical downlink control channel using a CDRX mechanism that does not rely on the low-power wake-up mechanism. This avoids the terminal device being unable to monitor the physical downlink control channel for extended periods due to the weak anti-interference capability of the low-power wake-up signal, effectively improving the reliability of physical downlink control channel monitoring and increasing data transmission efficiency.

[0155] Meanwhile, in this embodiment, if the terminal device fails to detect a low-power wake-up signal within N monitoring periods, it can send a notification to the network device to proactively inform the network device that the terminal device will use the CDRX mechanism to monitor the physical downlink control channel after the N monitoring periods for the low-power wake-up signal have ended. Upon receiving the notification, the network device can also send a confirmation message back to the terminal device, achieving two-way confirmation and ensuring information synchronization between the terminal device and the network device.

[0156] As shown in Figure 18, this figure is a schematic diagram of the third physical downlink control channel monitoring method provided in an embodiment of this application. It is understood that the specific implementation of this embodiment is similar to the implementation methods and technical effects achieved in the above embodiments, and some contents will not be repeated.

[0157] S301. The terminal device receives configuration information sent by the network device.

[0158] Unlike the above embodiments, the configuration information for the low-power wake-up signal in this configuration information includes the cycle of listening to the low-power wake-up signal, the offset time of listening to the low-power wake-up signal, the duration of listening to the low-power wake-up signal, and the listening time of listening to the low-power wake-up signal (lpwusCycleTimer).

[0159] The listening duration for the low-power wake-up signal is used to instruct the terminal device to use LR to listen for the low-power wake-up signal within the listening duration.

[0160] S302. According to the configuration information, the terminal device listens for the low-power wake-up signal within the listening duration of the low-power wake-up signal.

[0161] If the terminal device does not detect the low-power wake-up signal within the listening time period, it can execute S303 and use the CDRX mechanism to listen to the physical downlink control channel after the listening time period for the low-power wake-up signal ends.

[0162] In one possible implementation, to detect a low-power wake-up signal used to wake itself, the terminal device can listen for the identification information corresponding to the low-power wake-up signal during the listening period. It then checks whether the identification information corresponding to the low-power wake-up signal matches the terminal device.

[0163] If the identification information corresponding to the low-power wake-up signal matches the terminal device, it means that the low-power wake-up signal can wake up the terminal device and is used to trigger the terminal device to listen to the PDCCH. If the identification information corresponding to the low-power wake-up signal does not match the terminal device, it means that the low-power wake-up signal cannot wake up the terminal device and is used to trigger other terminal devices to listen to the PDCCH.

[0164] If no matching identifier is detected within the listening period, the terminal device can use the CDRX mechanism to listen to the physical downlink control channel after the listening period ends.

[0165] In one possible implementation, to keep the terminal device and the network device synchronized, if the terminal device does not detect a low-power wake-up signal within the listening period, it can send a notification message to the network device to proactively notify the network device that the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the listening period ends.

[0166] In one possible implementation, when the terminal device does not detect a low-power wake-up signal within the listening time, the terminal device can send a notification message to the network device at a preset offset time after the listening time.

[0167] The notification information is used to inform the network device that the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the current period ends.

[0168] In one example, the terminal device can directly use the MR-based CDRX mechanism to listen to the physical downlink control channel when sending notification information to the network device.

[0169] In another example, after receiving a notification message, the network device can reply with an acknowledgment message to the terminal device to achieve two-way confirmation. This acknowledgment message indicates that the network device has received the notification message from the terminal device. Upon receiving the acknowledgment message, the terminal device can use the CDRX mechanism to listen to the physical downlink control channel.

[0170] If the terminal device does not receive an acknowledgment after sending a notification message, it will continue to use the LR (Low Power Wake-up) mechanism to listen for the low-power wake-up signal until it receives an acknowledgment. During this period, if the terminal device still does not detect the low-power wake-up signal, it can resend the notification message to the network device to notify the network device that the terminal device will use the CDRX (Confirmation-Driven Response) mechanism to listen for the physical downlink control channel after the current low-power wake-up signal listening period ends.

[0171] When the terminal device detects a low-power wake-up signal within the listening time of the low-power wake-up signal, it can execute S304, and the terminal device listens to the physical downlink control channel based on the low-power wake-up signal.

[0172] It is understandable that the specific implementation of S304 is the same as that of S104 and S204 mentioned above, and will not be repeated here.

[0173] In summary, the downlink control channel monitoring method provided in this application can monitor the physical downlink control channel using the CDRX mechanism after the monitoring period ends if no low-power wake-up signal for waking up the terminal device is detected within the monitoring period. Therefore, even if the terminal device cannot detect the low-power wake-up signal, it can still monitor the physical downlink control channel using the CDRX mechanism, which is independent of the low-power wake-up mechanism. This avoids the terminal device being unable to monitor the physical downlink control channel for extended periods due to the weak anti-interference capability of the low-power wake-up signal, effectively improving the reliability of physical downlink control channel monitoring and increasing data transmission efficiency.

[0174] Meanwhile, in this embodiment, if the terminal device does not detect a low-power wake-up signal within the listening period, it can send a notification message to the network device to proactively notify the network device that the terminal device will use the CDRX mechanism to listen to the physical downlink control channel after the listening period ends. Upon receiving the notification message, the network device can also send a confirmation message back to the terminal device, achieving two-way confirmation and ensuring information synchronization between the terminal device and the network device.

[0175] It should be noted that, in the embodiments of this application, the configuration information may include one or more of the following: the number of CDRX cycles, the number of cycles for listening to low-power wake-up signals, and the listening duration for listening to low-power wake-up signals.

[0176] It is understood that the number of CDRX cycles may be the same as or different from the number of cycles for listening to the low-power wake-up signal, and this application embodiment does not make specific limitations on this.

[0177] If the configuration information includes multiple parameters such as the number of CDRX cycles, the number of cycles for listening to low-power wake-up signals, and the listening duration for listening to low-power wake-up signals, the terminal device can listen for low-power wake-up signals based on these parameters. If no low-power wake-up signal is detected, the device can revert to listening for low-power wake-up signals based on the CDRX mechanism.

[0178] In summary, based on the downlink control channel monitoring method provided in this application, even if the terminal device cannot detect the low-power wake-up signal, it can still monitor the physical downlink control channel using a CDRX mechanism that does not rely on the low-power wake-up mechanism. This avoids the terminal device being unable to monitor the physical downlink control channel for extended periods due to the weak anti-interference capability of the low-power wake-up signal, effectively improving the reliability of physical downlink control channel monitoring. It also prevents the terminal device from being unable to receive data when the low-power wake-up signal is not detected, thus improving the reliability of data transmission.

[0179] This embodiment also provides a computer-readable storage medium including instructions that, when executed on a terminal device, cause the terminal device to perform the relevant method steps described above to implement the method in the above embodiment.

[0180] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any changes or substitutions within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for monitoring a physical downlink control channel, characterized in that, Applied to terminal devices, including: The number of cycles sent by the receiving network device, wherein the number of cycles is a positive integer N; The terminal device listens for a low-power wake-up signal during the N cycles; the low-power wake-up signal is used to trigger the terminal device to listen to the physical downlink control channel. If the low-power wake-up signal is not detected within the N cycles, the physical downlink control channel is monitored using a connected discontinuous reception (CDRX) mechanism after the N cycles have ended. The CDRX mechanism is a mechanism that uses a wireless receiver (MR) to monitor the physical downlink control channel.

2. The method according to claim 1, characterized in that, The N cycles include at least one of N CDRX cycles and N cycles for listening to low-power wake-up signals.

3. The method according to claim 1 or 2, characterized in that, When the low-power wake-up signal is not detected within the N cycles, the method of using a connected-state discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel after the N cycles have ended includes: If the low-power wake-up signal is not detected within the N cycles, the physical downlink control channel is monitored starting from the first CDRX cycle after the N cycles have ended using the connected discontinuous receive CDRX mechanism.

4. The method according to claim 1, characterized in that, The process of listening for low-power wake-up signals during the N cycles includes: Listen for the identification information corresponding to the low-power wake-up signal during the N cycles; Detect whether the identification information corresponding to the low-power wake-up signal matches the terminal device; When the low-power wake-up signal is not detected within the N cycles, the method of using a connected-state discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel after the N cycles have ended includes: If no matching identification information is detected within the N cycles, the physical downlink control channel is monitored using the connected discontinuous reception (CDRX) mechanism after the N cycles have ended.

5. The method according to claim 1, characterized in that, When the low-power wake-up signal is not detected within the N cycles, the method of using a connected-state discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel after the N cycles have ended includes: If the low-power wake-up signal is not detected within the N cycles, a notification message is sent to the network device. After the N cycles end, the connected discontinuous reception CDRX mechanism is used to listen to the physical downlink control channel. The notification message is used to notify the network device that the terminal device will use the connected discontinuous reception CDRX mechanism to listen to the physical downlink control channel after the current cycle ends.

6. The method according to claim 5, characterized in that, The N cycles refer to N CDRX cycles. When the low-power wake-up signal is not detected within the N cycles, a notification message is sent to the network device, including: If the low-power wake-up signal is not detected within the wake-up duration On Duration Timer of the last CDRX cycle of the N CDRX cycles, a notification message is sent to the network device at a preset offset time after the On Duration Timer.

7. The method according to claim 6, characterized in that, The preset offset time includes: The start time of the last CDRX cycle plus the first offset; or, The end time of the On Duration Timer plus a second offset; or, The start time of the On Duration Timer of the first CDRX cycle after the N CDRX cycles have ended, minus the third offset.

8. The method according to any one of claims 5-7, characterized in that, When the low-power wake-up signal is not detected within the N cycles, a notification message is sent to the network device, and after the N cycles end, a connected-state discontinuous reception (CDRX) mechanism is used to monitor the physical downlink control channel, including: If the low-power wake-up signal is not detected within the N cycles, a notification message is sent to the network device. The device receives confirmation information sent by the network device, and after the N cycles are completed, it uses a connected discontinuous reception (CDRX) mechanism to listen to the physical downlink control channel. The confirmation information is used to deactivate the terminal device to listen for low-power wake-up signals.

9. A method for monitoring a physical downlink control channel, characterized in that, Applied to terminal devices, including: The duration of listening to messages sent by network devices; Listen for a low-power wake-up signal during the listening duration; the low-power wake-up signal is used to trigger the terminal device to listen to the physical downlink control channel; When the low-power wake-up signal is not detected within the listening time, the connected discontinuous reception (CDRX) mechanism is used to listen to the physical downlink control channel. The CDRX mechanism is a mechanism that uses a wireless receiver (MR) to listen to the physical downlink control channel.

10. The method according to claim 9, characterized in that, The process of listening for low-power wake-up signals during the listening duration includes: Listen for the identification information corresponding to the low-power wake-up signal during the listening duration; Detect whether the identification information corresponding to the low-power wake-up signal matches the terminal device; When the low-power wake-up signal is not detected within the specified listening time, the method of using the connected discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel includes: If no matching identifier information is detected within the listening duration, the physical downlink control channel is monitored using the connected discontinuous reception (CDRX) mechanism.

11. The method according to claim 9, characterized in that, When the low-power wake-up signal is not detected within the specified listening time, the method of using the connected discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel includes: When the low-power wake-up signal is not detected within the listening time, a notification message is sent to the network device to listen to the physical downlink control channel using the connected discontinuous reception CDRX mechanism. The notification message is used to notify the network device that the terminal device will use the connected discontinuous reception CDRX mechanism to listen to the physical downlink control channel after the listening time ends.

12. The method according to claim 11, characterized in that, When the low-power wake-up signal is not detected within the specified listening time, the method of using the connected discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel includes: If the low-power wake-up signal is not detected within the listening time, a notification message is sent to the network device. The device receives confirmation information sent by the network device and uses a connected discontinuous reception (CDRX) mechanism to monitor the physical downlink control channel. The confirmation information is used to deactivate the terminal device's ability to monitor low-power wake-up signals.

13. A method for monitoring a physical downlink control channel, characterized in that, Applied to network devices, including: Configure the number of cycles, where the number of cycles is a positive integer N; the number of cycles indicates the number of cycles the terminal device receives from the network device; listen for a low-power wake-up signal within the N cycles; the low-power wake-up signal triggers the terminal device to listen for the physical downlink control channel; if the low-power wake-up signal is not detected within the N cycles, the physical downlink control channel is listened for using a connected discontinuous reception (CDRX) mechanism after the N cycles have ended, where the CDRX mechanism is a mechanism that uses a wireless receiver (MR) to listen for the physical downlink control channel; The number of cycles is sent to the terminal device.

14. The method according to claim 13, characterized in that, The N cycles include at least one of N CDRX cycles and N cycles for listening to low-power wake-up signals.

15. The method according to claim 13, characterized in that, After sending the number of cycles to the terminal device, the method further includes: In response to a notification message sent by a terminal device, an acknowledgment message is sent to the terminal device; the notification message is used to notify the network device that the terminal device will use the connected discontinuous reception (CDRX) mechanism to listen to the physical downlink control channel after the current period ends; the acknowledgment message is used to deactivate the terminal device's listening for low-power wake-up signals.

16. The method according to claim 13, characterized in that, After sending the number of cycles to the terminal device, the method further includes: Send a low-power wake-up signal and a physical downlink control channel to the terminal device; When no feedback information is received from the terminal device, the network device's period count is incremented by 1 to obtain the network device's count value. When the count value of the network device reaches the configured value, a low-power wake-up signal is sent to the terminal device, and downlink control information (DCI) is sent within the wake-up duration (On Duration Timer) of the CDRX cycle.

17. A method for monitoring a physical downlink control channel, characterized in that, Applied to network devices, including: Configure a listening duration; the listening duration is used to indicate the duration for which the terminal device receives the listening signal sent by the network device; listen for a low-power wake-up signal within the listening duration; the low-power wake-up signal is used to trigger the terminal device to listen to the physical downlink control channel; when the low-power wake-up signal is not heard within the listening duration, the connected discontinuous reception (CDRX) mechanism is used to listen to the physical downlink control channel, and the CDRX mechanism is a mechanism that uses a wireless receiver (MR) to listen to the physical downlink control channel; The listening duration is sent to the terminal device.

18. A terminal device, characterized in that, The terminal device includes: a processor and a memory; The memory is used to store program code and transmit the program code to the processor; The processor is configured to execute the steps of a physical downlink control channel monitoring method as described in any one of claims 1-12 according to instructions in the program code.

Images