Discontinuous reception method, terminal device and network device

Abstract

The invention relates to a discontinuous reception method, terminal equipment and network equipment. The method comprises the following steps: the terminal equipment starts a first timer at a first moment after receiving a low-power wakeup signal (LP-WUS) moment, and the first timer is a discontinuous reception (DRX) duration timer; according to the embodiment of the invention, the terminal equipment restarts the first timer at the first moment after receiving the low-power-consumption wake-up signal, so that DRX can be entered as soon as possible, and energy conservation of the terminal equipment is facilitated.

Description

Discontinuous reception method, terminal equipment and network equipment Technical Field

[0001] The present application relates to the field of communications, and more specifically, to a discontinuous reception method, terminal equipment, and network equipment. Background Art

[0002] With the increasing demand for speed, latency, high-speed mobility, and energy efficiency, coupled with the increasing diversity and complexity of future services, the 3rd Generation Partnership Project (3GPP), an international standards organization, has begun developing fifth-generation mobile communication technology (5G). The primary application scenarios for 5G are enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (URLLC), and massive machine-type communications (mMTC). In 5G New Radio (NR), terminals utilize discontinuous reception (DRX) to achieve even greater energy efficiency.

[0003] Summary of the Invention

[0004] The embodiments of the present application provide a discontinuous reception method, terminal device, and network device, which can be more energy-efficient.

[0005] This embodiment of the present application provides a discontinuous reception method, including:

[0006] The terminal device starts a first timer at the first moment after receiving the low power wake-up signal LP-WUS, and the first timer is a discontinuous reception DRX duration timer.

[0007] This embodiment of the present application provides a discontinuous reception method, including:

[0008] The network device sends first configuration information to the terminal device, which is used to configure a first timer. The first timer is a timer that is started at the first moment after the terminal device receives the low power wake-up signal LP-WUS. The first timer is a DRX duration timer.

[0009] An embodiment of the present application provides a terminal device, including:

[0010] The processing unit is configured to start a first timer at a first moment after receiving the low power consumption wake-up signal LP-WUS, where the first timer is a DRX duration timer.

[0011] An embodiment of the present application provides a network device, including:

[0012] The first sending unit is used to send first configuration information to the terminal device, where the first configuration information is used to configure a first timer. The first timer is a timer that is started at the first moment after the terminal device receives the low power wake-up signal LP-WUS. The first timer is a DRX duration timer.

[0013] An embodiment of the present application provides a terminal device, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the terminal device performs the above-mentioned discontinuous reception method.

[0014] An embodiment of the present application provides a network device, comprising a processor and a memory, wherein the memory is used to store a computer program, and the processor is used to call and run the computer program stored in the memory, so that the network device performs the above-mentioned discontinuous reception method.

[0015] An embodiment of the present application provides a chip for implementing the above-mentioned discontinuous reception method.

[0016] Specifically, the chip includes: a processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the above-mentioned discontinuous reception method.

[0017] An embodiment of the present application provides a computer-readable storage medium for storing a computer program. When the computer program is executed by a device, the device executes the above-mentioned discontinuous reception method.

[0018] An embodiment of the present application provides a computer program product, including computer program instructions, which enable a computer to execute the above-mentioned discontinuous reception method.

[0019] An embodiment of the present application provides a computer program, which, when executed on a computer, enables the computer to execute the above-mentioned discontinuous reception method.

[0020] In an embodiment of the present application, the terminal device starts the first timer at the first moment after receiving the low-power wake-up signal, which can enter DRX as soon as possible and is beneficial to energy saving of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] FIG1 is a schematic diagram of an application scenario according to an embodiment of the present application.

[0022] FIG2 is a schematic diagram of a DRX long cycle and a DRX short cycle according to an embodiment of the present application.

[0023] 3A and 3B are schematic diagrams illustrating the working principle of an LP-WUS according to an embodiment of the present application.

[0024] FIG4 is a schematic flowchart of a discontinuous reception method according to an embodiment of the present application.

[0025] FIG5 is a schematic flowchart of a discontinuous reception method according to another embodiment of the present application.

[0026] FIG6 is a schematic flowchart of a discontinuous reception method according to another embodiment of the present application.

[0027] FIG7 is a schematic flowchart of a discontinuous reception method according to an embodiment of the present application.

[0028] FIG8 is a schematic flowchart of a discontinuous reception method according to another embodiment of the present application.

[0029] FIG9 is a flowchart of a specific implementation process according to Example 1 of the present application.

[0030] FIG10 is a flowchart of a specific implementation process according to Example 2 of this application.

[0031] FIG11 is a flowchart of a specific implementation process according to Example 3 of this application.

[0032] FIG12 is a schematic block diagram of a terminal device according to an embodiment of the present application.

[0033] FIG13 is a schematic block diagram of a terminal device according to another embodiment of the present application.

[0034] FIG14 is a schematic block diagram of a network device according to an embodiment of the present application.

[0035] FIG15 is a schematic block diagram of a network device according to another embodiment of the present application.

[0036] FIG16 is a schematic block diagram of a communication device according to an embodiment of the present application.

[0037] FIG17 is a schematic block diagram of a chip according to an embodiment of the present application.

[0038] FIG18 is a schematic block diagram of a communication system according to an embodiment of the present application. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application.

[0040] The technical solutions of the embodiments of the present application can be applied to various communication systems, such as: Global System of Mobile communication (GSM) system, Code Division Multiple Access (CDMA) system, Wideband Code Division Multiple Access (WCDMA) system, General Packet Radio Service (GPRS), Long Term Evolution (LTE) system, Advanced Long Term Evolution (LTE-A) system, New Radio (NR) system, NR system evolution system, LTE on unlicensed spectrum (LTE-U) system, NR on unlicensed spectrum (NR-U) system, Non-Terrestrial Networks (NTN) system, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (Wireless Fidelity) system. Fidelity, WiFi), fifth-generation communication (5th-Generation, 5G) system or other communication systems, etc.

[0041] Generally speaking, traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, mobile communication systems will not only support traditional communications, but will also support, for example, device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), vehicle-to-vehicle (V2V) communication, or vehicle-to-everything (V2X) communication, etc. The embodiments of the present application can also be applied to these communication systems.

[0042] In one embodiment, the communication system in the embodiment of the present application can be applied to a carrier aggregation (CA) scenario, a dual connectivity (DC) scenario, and a standalone (SA) networking scenario.

[0043] In one embodiment, the communication system in the embodiment of the present application can be applied to an unlicensed spectrum, wherein the unlicensed spectrum can also be considered as a shared spectrum; or, the communication system in the embodiment of the present application can also be applied to an authorized spectrum, wherein the authorized spectrum can also be considered as an unshared spectrum.

[0044] The embodiments of the present application describe various embodiments in conjunction with network devices and terminal devices, wherein the terminal device may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station, remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device, etc.

[0045] The terminal device can be a station (STAION, ST) in a WLAN, a cellular phone, a cordless phone, a Session Initiation Protocol (SIP) phone, a Wireless Local Loop (WLL) station, a Personal Digital Assistant (PDA) device, a handheld device with wireless communication capabilities, a computing device or other processing device connected to a wireless modem, a vehicle-mounted device, a wearable device, a terminal device in a next-generation communication system such as an NR network, or a terminal device in a future evolved Public Land Mobile Network (PLMN) network, etc.

[0046] In an embodiment of the present application, the terminal device can be deployed on land, including indoors or outdoors, handheld, wearable or vehicle-mounted; it can also be deployed on the water surface (such as ships, etc.); it can also be deployed in the air (such as airplanes, balloons and satellites, etc.).

[0047] In an embodiment of the present application, the terminal device may be a mobile phone, a tablet computer, a computer with wireless transceiver function, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a wireless terminal device in industrial control, a wireless terminal device in self-driving, a wireless terminal device in remote medical, a wireless terminal device in a smart grid, a wireless terminal device in transportation safety, a wireless terminal device in a smart city, or a wireless terminal device in a smart home, etc.

[0048] As an example and not a limitation, in the embodiment of the present application, the terminal device may also be a wearable device. Wearable devices may also be called wearable smart devices, which are a general term for wearable devices that are intelligently designed and developed using wearable technology for daily wear, such as glasses, gloves, watches, clothing, and shoes. A wearable device is a portable device that is worn directly on the body or integrated into the user's clothes or accessories. Wearable devices are not only hardware devices, but also achieve powerful functions through software support, data interaction, and cloud interaction. Broadly speaking, wearable smart devices include those that are fully functional, large in size, and can achieve complete or partial functions without relying on smartphones, such as smart watches or smart glasses, as well as those that only focus on a certain type of application function and need to be used in conjunction with other devices such as smartphones, such as various smart bracelets and smart jewelry for vital sign monitoring.

[0049] In an embodiment of the present application, the network device may be a device for communicating with a mobile device. The network device may be an access point (AP) in WLAN, a base station (BTS) in GSM or CDMA, a base station (NodeB, NB) in WCDMA, an evolved base station (eNB or eNodeB) in LTE, or a relay station or access point, or a vehicle-mounted device, a wearable device, and a network device (gNB) in an NR network, or a network device in a future evolved PLMN network or a network device in an NTN network, etc.

[0050] As an example and not a limitation, in an embodiment of the present application, the network device may have a mobile feature, for example, the network device may be a mobile device. Alternatively, the network device may be a satellite or a balloon station. For example, the satellite may be a low earth orbit (LEO) satellite, a medium earth orbit (MEO) satellite, a geostationary earth orbit (GEO) satellite, a high elliptical orbit (HEO) satellite, etc. Optionally, the network device may also be a base station set up in a location such as land or water.

[0051] In an embodiment of the present application, the network device can provide services for a cell, and the terminal device communicates with the network device through the transmission resources used by the cell (for example, frequency domain resources, or spectrum resources). The cell can be a cell corresponding to the network device (for example, a base station). The cell can belong to a macro base station or a base station corresponding to a small cell. The small cells here may include: metro cells, micro cells, pico cells, femto cells, etc. These small cells have the characteristics of small coverage and low transmission power, and are suitable for providing high-speed data transmission services.

[0052] FIG1 exemplarily illustrates a communication system 100. The communication system includes a network device 110 and two terminal devices 120. In one embodiment, the communication system 100 may include multiple network devices 110, and each network device 110 may include a different number of terminal devices 120 within its coverage area, which is not limited in this embodiment of the present application.

[0053] In one implementation, the communication system 100 may further include other network entities such as a Mobility Management Entity (MME) and an Access and Mobility Management Function (AMF), which is not limited in this embodiment of the present application.

[0054] Among them, the network equipment may include access network equipment and core network equipment. That is, the wireless communication system also includes multiple core networks for communicating with the access network equipment. The access network equipment can be an evolutionary base station (evolutional node B, abbreviated as eNB or e-NodeB) macro base station, micro base station (also called "small base station"), pico base station, access point (AP), transmission point (TP) or new generation base station (new generation Node B, gNodeB), etc. in a long-term evolution (LTE) system, a next-generation (mobile communication system) (next radio, NR) system or an authorized auxiliary access long-term evolution (LAA-LTE) system.

[0055] It should be understood that in the embodiments of the present application, a device having a communication function in a network / system may be referred to as a communication device. Taking the communication system shown in Figure 1 as an example, the communication device may include a network device and a terminal device having a communication function. The network device and the terminal device may be specific devices in the embodiments of the present application and will not be described in detail here. The communication device may also include other devices in the communication system, such as a network controller, a mobility management entity, and other network entities, which are not limited in the embodiments of the present application.

[0056] It should be understood that the terms "system" and "network" are often used interchangeably herein. The term "and / or" is simply a description of an association between related objects, indicating that three possible relationships exist. For example, "A and / or B" can represent: A exists alone, A and B exist simultaneously, or B exists alone. Furthermore, the character " / " generally indicates that the related objects are in an "or" relationship.

[0057] It should be understood that the "indication" mentioned in the embodiments of this application can be a direct indication, an indirect indication, or an indication of an association. For example, "A indicates B" can mean that A directly indicates B, for example, B can be obtained through A; it can also mean that A indirectly indicates B, for example, A indicates C, and B can be obtained through C; it can also mean that there is an association between A and B.

[0058] In the description of the embodiments of the present application, the term "corresponding" may indicate a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship between indication and being indicated, configuration and being configured, etc.

[0059] To facilitate understanding of the technical solutions of the embodiments of the present application, the relevant technologies of the embodiments of the present application are described below. The following relevant technologies can be arbitrarily combined with the technical solutions of the embodiments of the present application as optional solutions, and they all fall within the protection scope of the embodiments of the present application.

[0060] New Radio (NR) can also be deployed independently. To reduce air interface signaling and quickly restore wireless connections and data services in 5G networks, a new Radio Resource Control (RRC) state, RRC_INACTIVE, is provided. This state is different from the RRC_IDLE and RRC_ACTIVE states.

[0061] RRC_IDLE: Mobility is based on UE cell reselection. Paging is initiated by the Core Network (CN), and the paging area is configured by the CN. There is no UE Access Stratum (AS) context on the base station side. No RRC connection exists.

[0062] RRC_CONNECTED: An RRC connection exists, and a UE AS context exists between the base station and the UE. The network knows the UE's location at the cell level. Mobility is controlled by the network. Unicast data can be transmitted between the UE and the base station.

[0063] RRC_INACTIVE: Mobility is based on UE cell selection and reselection. There is a connection between CN and NR. The UE AS context exists on a certain base station. Paging is triggered by the Radio Access Network (RAN). The RAN-based paging area is managed by the RAN. The network side knows the UE location based on the RAN paging area level.

[0064] 5G NR DRX process

[0065] In 5G NR, the network can configure the DRX function for the terminal, so that the terminal can monitor the Physical Downlink Control Channel (PDCCH) discontinuously to achieve the purpose of terminal power saving. Each Medium Access Control (MAC) entity has a DRX configuration. For example, the DRX configuration parameters include:

[0066] drx-onDurationTimer (DRX duration timer): the duration of the UE waking up at the beginning of a DRX cycle;

[0067] drx-SlotOffset (DRX slot offset): delay for UE to start drx-onDurationTimer;

[0068] drx-InactivityTimer (DRX inactivity timer): When the UE receives a PDCCH indicating an initial uplink or downlink transmission, the UE continues to monitor the PDCCH duration;

[0069] drx-RetransmissionTimerDL (DRX downlink retransmission timer): The maximum duration that the UE monitors the PDCCH indicating downlink retransmission scheduling. Each downlink Hybrid Automatic Repeat Request (HARQ) process, except the broadcast HARQ process, corresponds to one drx-RetransmissionTimerDL.

[0070] drx-RetransmissionTimerUL (DRX uplink retransmission timer): The maximum duration that the UE monitors the PDCCH indicating uplink retransmission scheduling. Each uplink HARQ process corresponds to one drx-RetransmissionTimerUL;

[0071] drx-LongCycleStartOffset (DRX long cycle start offset): used to configure the long DRX cycle (Long DRX cycle), as well as the subframe offset of the start of the long DRX cycle and the short DRX cycle (Short DRX Cycle);

[0072] drx-ShortCycle (DRX short cycle): Short DRX cycle, optional configuration;

[0073] drx-ShortCycleTimer (DRX short cycle timer): The duration during which the UE is in a Short DRX cycle (and does not receive any PDCCH). This is an optional configuration.

[0074] drx-HARQ-RTT-TimerDL (DRX downlink HARQ Round Trip Time (RTT) timer): The minimum waiting time required for the UE to receive the PDCCH indicating downlink scheduling. Each downlink HARQ process other than the broadcast HARQ process corresponds to one drx-HARQ-RTT-TimerDL;

[0075] drx-HARQ-RTT-TimerUL (DRX uplink HARQ RTT timer): The minimum waiting time required for the UE to receive the PDCCH indicating uplink scheduling. Each uplink HARQ process corresponds to one drx-HARQ-RTT-TimerUL.

[0076] If the terminal is configured with DRX, it needs to monitor the PDCCH during the DRX activation period. The DRX activation period may include the following situations:

[0077] Any of the five timers, drx-onDurationTimer, drx-InactivityTimer, drx-RetransmissionTimerDL, drx-RetransmissionTimerUL, and ra-ContentionResolutionTimer (RA contention resolution timer), is running.

[0078] A Scheduling Request (SR) is sent on a Physical Uplink Control Channel (PUCCH) and is in a pending state.

[0079] In a contention-based random access process, after successfully receiving a random access response, the terminal has not yet received an initial transmission indicated by a PDCCH scrambled by a Cell Radio Network Temporary Identifier (C-RNTI).

[0080] In the relevant mechanism, DRX long DRX is the default configuration and DRX short DRX is an optional configuration. For terminals configured with a short DRX cycle, the conversion between the long DRX cycle and the short DRX cycle can be as follows:

[0081] When any of the following conditions is met, the terminal uses the DRX short cycle (DRX short cycle, also known as the short DRX cycle):

[0082] drx-InactivityTimer timed out;

[0083] The terminal receives a DRX Command MAC CE (Control Element).

[0084] When any of the following conditions is met, the terminal uses DRX long cycle e (DRX long cycle, also known as long DRX cycle):

[0085] drx-ShortCycleTimer timeout;

[0086] The terminal receives a long DRX command MAC CE.

[0087] As shown in Figure 2, the terminal can decide when to start the drx-onDurationTimer based on whether it is currently in a short DRX cycle or a long DRX cycle. For example:

[0088] 1. If Short DRX Cycle is used and the current subframe satisfies [(SFN×10)+subframe number]modulo(drx-ShortCycle)=(drx-StartOffset)modulo(drx-ShortCycle); or

[0089] 2. If Long DRX Cycle is used and the current subframe satisfies [(SFN×10)+subframe number]modulo(drx-LongCycle)=drx-StartOffset:

[0090] 3. Start drx-onDurationTimer at the time drx-SlotOffset time slots after the start of the current subframe.

[0091] In the above formula, SFN represents the system frame number (SFN), subframe number represents the number of subframes, modulo represents a modulo operation, drx-ShortCycle represents a short DRX cycle, drx-StartOffset represents a DRX start offset, and drx-LongCycle represents a long DRX cycle.

[0092] The condition for the terminal to start or restart the drx-Inactivity Timer may include: if the terminal receives a PDCCH indicating downlink or uplink initial transmission, the terminal starts or restarts the drx-Inactivity Timer.

[0093] Conditions for a terminal to start and stop drx-RetransmissionTimerDL may include:

[0094] When the terminal receives a PDCCH indicating a downlink transmission, or when the terminal receives a MAC Protocol Data Unit (PDU) on the configured downlink grant resources, the terminal stops the drx-RetransmissionTimerDL corresponding to the HARQ process. After completing the transmission of the HARQ process feedback for this downlink transmission, the terminal starts the drx-HARQ-RTT-TimerDL corresponding to the HARQ process.

[0095] If the timer drx-HARQ-RTT-TimerDL corresponding to a certain HARQ process of the terminal times out and the decoding of the downlink data transmitted using this HARQ process is unsuccessful, the terminal starts the drx-RetransmissionTimerDL corresponding to this HARQ process.

[0096] The conditions for the terminal to start and stop drx-RetransmissionTimerUL may include:

[0097] When the terminal receives a PDCCH indicating an uplink transmission, or when the terminal sends a MAC PDU on the configured uplink grant resources, the terminal stops the drx-RetransmissionTimerUL corresponding to the HARQ process. The terminal starts the drx-HARQ-RTT-TimerUL corresponding to the HARQ process after completing the first repetition of the Physical Uplink Shared Channel (PUSCH).

[0098] If the timer drx-HARQ-RTT-TimerUL corresponding to a certain HARQ process of the terminal times out, the terminal starts the drx-RetransmissionTimerUL corresponding to this HARQ process.

[0099] Wake Up Signal (WUS)

[0100] NR R16 includes a power saving signal. The UE starts blind detection of the PDCCH-based power saving signalling (e.g., PDCCH-WUS) at an offset before the start time of the drx-ondurationTimer corresponding to each long DRX cycle. If a PDCCH-WUS is detected and the WUS indicates that the UE is to wake up, the UE starts the drx-ondurationTimer in the Long DRX cycle. If a PDCCH-WUS is detected and the WUS indicates that the UE does not need to wake up, the UE will not start the drx-ondurationTimer.

[0101] Related connected-state energy-saving technologies, including the DRX mechanism and the WUS mechanism, are primarily designed for situations where the terminal's main receiver remains on. In Release 18, many companies are considering a lower-power wake-up signal, known as the ultra-low-power WUS. Compared to the WUS mechanism in Release 16, the low-power WUS is more energy-efficient. The low-power WUS utilizes a separate, lower-power receiver, bypassing the main receiver for reception. The terminal activates the main receiver to monitor downlink signals only after receiving the LP-WUS, thereby achieving energy savings. As shown in Figure 3A, if the ultra-low-power wake-up receiver is in the OFF state and cannot wake up the main radio via a wake-up signal, the main radio is in the OFF state or sleep state. As shown in Figure 3B, if the ultra-low-power wake-up receiver is in the ON state, the wake-up signal can trigger the main radio to wake it up. Based on the LP-WUS signal, the solution of the embodiment of the present application can reflect the impact of the LP-WUS signal on the connected state DRX mechanism.

[0102] FIG4 is a schematic flow chart of a method 400 for discontinuous reception according to an embodiment of the present application. The method may optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0103] S410. The terminal device starts a first timer at the first moment after receiving the low power consumption wake-up signal (LP-WUS), and the first timer is a discontinuous reception DRX duration timer.

[0104] In an embodiment of the present application, the first moment may be a moment some time after the terminal device receives the LP-WUS moment. During this period, the terminal device may wake up the main receiver through the low-power receiver. After waking up the main receiver, the main receiver may monitor the PDCCH during the operation of the first timer. In this way, some time for the wake-up operation can be reserved for the terminal device, thereby saving more energy in the DRX mechanism. By adopting the solution of the embodiment of the present application, the terminal device can enter the DRX active time (DRX Active Time) as soon as possible after receiving the LP-WUS signal to monitor the PDCCH, thereby reducing service latency and helping the terminal device save power.

[0105] In the embodiment of the present application, the DRX duration may also be referred to as a DRX on duration (onDuration). The DRX duration timer may also be referred to as a DRX on duration timer, a DRX on time timer, etc. If the first timer is running, the terminal device monitors the PDCCH.

[0106] In one embodiment, the first moment is a moment after a first time offset of a moment when the LP-WUS is received.

[0107] In an embodiment of the present application, the terminal device may start a DRX duration timer, such as drx-onDurationTimer, at a first time offset after receiving the LP-WUS. The first time offset may be determined based on the time required for the low power receiver to wake up the main receiver.

[0108] In some examples, the first time offset may be greater than or equal to the time required for the low-power receiver to wake up the main receiver. This allows sufficient time for the low-power receiver to wake up the main receiver. For example, if the time required for the low-power receiver of UE1 to wake up the main receiver is T1, the first time offset of UE1 may be greater than or equal to T1.

[0109] In some examples, the first time offset can be less than the time required for the low-power receiver to wake up the main receiver. This allows the low-power receiver to have a certain amount of time to wake up the main receiver, thereby minimizing latency while saving energy.

[0110] In some examples, the first time offsets of different terminal devices may be different. For example, if the time required for UE2's low-power receiver to wake up the main receiver is T2, then UE2's first time offset may be greater than or equal to T2. T2 may be different from T1 in the above example. UE2 and UE1 may have different first time offsets.

[0111] In one embodiment, the first time offset is determined by the terminal device or configured by the network device.

[0112] For example, the terminal device determines the first time offset by itself and sends the first time offset to the network device.

[0113] For another example, the network device determines a first time offset. The terminal device receives configuration information from the network device, the configuration information being used to configure the first time offset. The configuration information may include a duration of the first time offset, and may also include an indicator value, the indicator value may have a corresponding duration.

[0114] In one embodiment, S410, the terminal device starts the first timer at a first moment after receiving the LP-WUS moment, including: if the terminal device does not start the first timer at the first moment, starting the first timer.

[0115] For example, at the moment after the first time offset of the LP-WUS moment is received, if the DRX duration timer is not started, the DRX duration timer is started. If the terminal device has already started a DRX duration timer in the above case, it does not need to be started again, and the original DRX duration timer can continue to be used.

[0116] In one embodiment, S410, the terminal device starts the first timer at the first moment after receiving the LP-WUS moment, including: the terminal device starts the first timer when it is in the DRX duration at the first moment and the first timer is not started.

[0117] For example, at a moment after the first time offset of the LP-WUS moment is received by the terminal device, if the terminal device is in the DRX duration and the DRX duration timer is not started, the DRX duration timer is started. If the terminal device has already started a DRX duration timer in the above case, it does not need to be started again, and the original DRX duration timer can continue to be used.

[0118] In one embodiment, the terminal device is in an RRC connected state and in a low power receiver state.

[0119] In an embodiment of the present application, the terminal device is in a low power receiver state, the LP-WUS receiver is working, and the main receiver is in an off state.

[0120] For example, a terminal device in an RRC connected state and a low power receiver state triggers the start of the main receiver when the LP-WUS receiver receives the LP-WUS, and starts the DRX duration timer at a moment after the first time offset of receiving the LP-WUS.

[0121] For another example, a terminal device in an RRC connected state and a low power receiver state triggers the start of the main receiver when the LP-WUS receiver receives the LP-WUS, and at a moment after the first time offset of receiving the LP-WUS, if the DRX duration timer is not started, the DRX duration timer is started.

[0122] For another example, a terminal device in an RRC connected state and a low power receiver state triggers the start of the main receiver when the LP-WUS receiver receives the LP-WUS, and at a moment after the first time offset of receiving the LP-WUS, if the terminal device is in the DRX duration and the DRX duration timer is not started, the DRX duration timer is started.

[0123] In one embodiment, the first time instant includes at least one of the following time units: a time symbol, a time slot, or a subframe.

[0124] For example, the terminal device starts the DRX duration timer in a time unit, such as symbol f1, after receiving the first time offset of the LP-WUS moment.

[0125] For another example, the terminal device starts the DRX duration timer if the DRX duration timer is not started in the time unit after the first time offset of the LP-WUS moment is received, such as the time slot n1.

[0126] For another example, when the terminal device receives the time unit after the first time offset of the LP-WUS moment, such as subframe s1, if the terminal device is in the DRX duration and the DRX duration timer is not started, the DRX duration timer is started.

[0127] In one implementation, the duration of the first timer is the remaining duration of the DRX duration.

[0128] In the embodiment of the present application, if the terminal device is already in the DRX duration at the first moment, the duration of the newly started first timer may be equal to the remaining duration of the DRX duration. D At the first moment, the duration of the DRX duration of the terminal device has passed is T Dx , then the duration of the first timer is T Dx =T D -T Dx .

[0129] In one embodiment, as shown in FIG5 , the discontinuous reception method 500 further includes:

[0130] S510: The terminal device periodically starts the first timer with the first moment as a reference moment.

[0131] In an embodiment of the present application, if a first timer is started at a first time t in a DRX cycle, the first timer may be periodically started in subsequent DRX cycles with reference to the first time t. For example, if the duration of the DRX cycle is C and the first timer is started at time t in DRX cycle D1, the first timer may be started at time t+C in the next DRX cycle D2 after D1, the first timer may be started at time t+2×C in the next DRX cycle D3 after D2, and so on.

[0132] In one implementation, the period for starting the first timer is a DRX short cycle or a DRX long cycle.

[0133] For example, if the period of the first timer is the DRX long cycle CL, the first timer is started at time t in the DRX cycle D1, and the first timer may be started at time t+CL in the next DRX cycle D2 after D1.

[0134] For another example, if the period of the first timer is the DRX short cycle CS, the first timer is started at time t in the DRX cycle D1 and can be started at time t+CS in the next DRX cycle D2 after D1.

[0135] In one implementation, the duration of the first timer is configured by the network device.

[0136] In an embodiment of the present application, if the duration of the first timer is configured by the network device, the terminal device may receive configuration information for configuring the duration of the first timer from the network device. The configuration information may include the duration of the first timer and may also include an indication value, and the indication value may have a corresponding duration. The duration of the first timer and the first time offset may be configured simultaneously through a single configuration information or separately through different configuration information.

[0137] In one embodiment, as shown in FIG6 , the discontinuous reception method 600 further includes:

[0138] S610: The terminal device monitors LP-WUS.

[0139] In one embodiment, as shown in FIG6 , the discontinuous reception method 600 further includes:

[0140] S620: Upon receiving the LP-WUS, the terminal device wakes up the main receiver.

[0141] In an embodiment of the present application, a terminal device in an RRC connected state and in a low-power receiver state monitors the LP-WUS. The low-power receiver of the terminal device triggers the awakening of the main receiver of the terminal device upon receipt of the LP-WUS, and executes the above-mentioned step 410 to start the DRX duration timer at a time after the first time offset of the LP-WUS reception. The main receiver may monitor the PDCCH during the operation of the first timer.

[0142] FIG7 is a schematic flow chart of a method 700 for discontinuous reception according to an embodiment of the present application. The method may optionally be applied to the system shown in FIG1 , but is not limited thereto. The method includes at least part of the following contents.

[0143] S710. The network device sends first configuration information to the terminal device. The first configuration information is used to configure a first timer. The first timer is a timer started by the terminal device at the first moment after receiving the LP-WUS moment. The first timer is a DRX duration timer.

[0144] In one implementation, the first configuration information is used to configure the duration of the first timer.

[0145] In an embodiment of the present application, if the duration of the first timer is configured by the network device, the network device may send first configuration information for configuring the duration of the first timer to the terminal device. The first configuration information may include the duration of the first timer and may also include an indication value, and the indication value may have a corresponding duration.

[0146] In one implementation, the duration of the first timer is the remaining duration of the DRX duration.

[0147] In one embodiment, the first time instant includes at least one of the following time units: a time symbol, a time slot, or a subframe.

[0148] In one embodiment, the first moment is a moment after a first time offset of a moment when the LP-WUS is received.

[0149] In one embodiment, as shown in FIG8 , the discontinuous reception method 800 further includes:

[0150] S810. The network device sends second configuration information to the terminal device, where the second configuration information is used to configure the first time offset.

[0151] In an embodiment of the present application, if the terminal device determines the first time offset itself, the terminal device may send the first time offset to the network device. If the network device determines the first time offset, the network device may send second configuration information to the terminal device, where the second configuration information is used to configure the first time offset. The configuration information may include the duration of the first time offset or an indicator value, where the indicator value may have a corresponding duration.

[0152] In an embodiment of the present application, the duration of the first timer and the first time offset can be configured simultaneously through one configuration information, or can be configured separately through different configuration information.

[0153] Specific examples of the network device executing methods 700 and 800 of this embodiment can be found in the relevant descriptions of the above methods 400, 500, and 600, and will not be repeated here for the sake of brevity.

[0154] The discontinuous reception method provided in the embodiment of the present application is a method for discontinuous reception of a terminal based on a low-power wake-up signal. The method may mainly include the following contents:

[0155] 1. A UE in the RRC connected state starts the drx-onDurationTimer at time t after receiving the first time offset of the LP-WUS time.

[0156] 2. At time t after the first time offset of the LP-WUS moment is received by the UE in the RRC connected state, if the UE is within the drx onDuration duration at time t and the UE has not currently started the drx-onDurationTimer, the UE starts the drx-onDurationTimer.

[0157] 3. The timer duration of the drx-onDurationTimer started this time is the remaining time of the drx onDuration duration.

[0158] 4. The timer duration of drx-onDurationTimer can be the duration configured by the network.

[0159] 5. The UE periodically starts the drx-onDurationTimer with time t as the reference time. The period can be a DRX short cycle or a DRX long cycle.

[0160] The following are several examples of the discontinuous reception method according to the embodiments of the present application.

[0161] Example 1

[0162] If a UE in the RRC connected state is within a DRX duration, such as DRX onDuration, at time t after the first time offset of receiving the LP-WUS, and the UE has not currently started a drx-onDurationTimer, the UE starts a drx-onDurationTimer. The duration of the timer corresponding to the currently started drx-onDurationTimer is the remaining time of the current DRX onDuration duration.

[0163] As shown in Figure 9, the specific implementation process of this example is as follows:

[0164] 1. A UE in an RRC connected state monitors the LP-WUS in a low-power receiver state. In this state, only the LP-WUS receiver is operating, and the main radio is off.

[0165] 2. If the UE receives an LP-WUS, the UE wakes up the main radio. If the UE is within the DRX onDuration during time unit n after the first time offset from the moment of receipt of the LP-WUS (e.g., the UE is within the period t1 to t1 + drx-onDurationTimer, where drx-onDurationTimer may be a timer duration configured for the UE by the network via RRC), and the UE has not currently started a DRX duration timer such as drx-onDurationTimer (e.g., the UE receives the LP-WUS after time t1), the UE starts the drx-onDurationTimer, and the duration of the timer corresponding to the drx-onDurationTimer started by the UE is the remaining time of the current DRX onDuration.

[0166] The first time offset value may be determined by the UE itself and reported to the network, or may be determined by the network and sent to the UE after configuration.

[0167] The above-mentioned time unit may be, but is not limited to, any one of the following: a time symbol, a time slot, or a subframe;

[0168] The above-mentioned time t1 is the start time of drx-onDurationTimer in the related art. For example, t1 satisfies at least one of the following conditions:

[0169] If the Short DRX Cycle is used, and the subframe corresponding to t1 satisfies [(SFN×10)+subframe number]modulo(drx-ShortCycle)=(drx-StartOffset)modulo(drx-ShortCycle).

[0170] If Long DRX Cycle is used, and the subframe corresponding to t1 satisfies [(SFN×10)+subframe number]modulo(drx-LongCycle)=drx-StartOffset.

[0171] t1 may be a time point one time offset drx-SlotOffset after the start of the subframe that meets the above conditions.

[0172] Example 2

[0173] A UE in the RRC Connected state starts a drx-onDurationTimer at time t after the first time offset of the LP-WUS moment is received, and the timer duration of the drx-onDurationTimer is the network-configured duration. Optionally, if time t is within the DRX onDuration duration and the UE has not currently started a drx-onDurationTimer, the UE starts the drx-onDurationTimer.

[0174] As shown in Figure 10, the specific implementation process of this example is as follows:

[0175] 1. A UE in an RRC connected state monitors the LP-WUS in a low-power receiver state. In this state, only the LP-WUS receiver is operating, and the main radio is off.

[0176] 2. If the UE receives an LP-WUS, the UE wakes up the main radio and starts the drx-onDurationTimer at the first time offset from the time of receiving the LP-WUS, and the drx-onDurationTimer duration is the timer duration configured by the network through RRC.

[0177] The first time offset value may be determined by the UE itself and reported to the network, or determined by network configuration.

[0178] Optionally, the condition for the UE to start the drx-onDurationTimer may further include: if the UE is within the drx onDuration duration in the time unit n after the first time offset from the moment of receiving the LP-WUS (for example, the UE is in t1~t1+drx-onDurationTimer), and the UE has not currently started the drx-onDurationTimer (for example, the UE receives the LP-WUS after time t1).

[0179] The above-mentioned time unit may be, but is not limited to, any one of the following: a time symbol, a time slot, or a subframe;

[0180] The above-mentioned time t1 may be the start time of drx-onDurationTimer in the related art. Please refer to the relevant description of Example 1.

[0181] Example 3

[0182] A UE in an RRC connected state starts a drx-onDurationTimer at time t after receiving the first time offset of the LP-WUS time, and the UE periodically starts the drx-onDurationTimer with time t as the reference time. The period for starting the drx-onDurationTimer may be a DRX short DRX cycle or a long DRX cycle, and the timer duration of the drx-onDurationTimer may be a network-configured duration.

[0183] As shown in Figure 11, the specific implementation process of this example is as follows:

[0184] 1. A UE in an RRC connected state monitors the LP-WUS in a low-power receiver state. In this state, only the LP-WUS receiver is operating, and the main radio is off.

[0185] 2. If the UE receives an LP-WUS, the UE wakes up the main radio. The UE starts the drx-onDurationTimer at time t, the first time offset after receiving the LP-WUS. The UE periodically starts the drx-onDurationTimer with time t as the reference time. The cycle is either a short DRX cycle or a long DRX cycle, and the drx-onDurationTimer duration is the timer duration configured by the network via RRC.

[0186] The first time offset value may be determined by the UE itself and reported to the network, or determined by network configuration.

[0187] The DRX method provided in the embodiments of the present application is a method for discontinuous reception of a terminal based on a low-power wake-up signal. Using this method, the terminal can enter the DRX active time (DRX Active Time) as soon as possible after receiving the LP-WUS signal to monitor the PDCCH, thereby reducing service latency and better facilitating terminal power conservation.

[0188] FIG12 is a schematic block diagram of a terminal device 1200 according to an embodiment of the present application. The terminal device 1200 may include:

[0189] The processing unit 1210 is configured to start a first timer at a first moment after receiving the low power consumption wake-up signal LP-WUS, where the first timer is a discontinuous reception DRX duration timer.

[0190] In one embodiment, the first moment is a moment after a first time offset of a moment when the LP-WUS is received.

[0191] In one embodiment, the first time offset is determined by the terminal device or configured by the network device.

[0192] In one implementation, the processing unit 1210 is configured to start the first timer if the first timer is not started at the first moment.

[0193] In one implementation, the processing unit 1210 is configured to start the first timer when the first moment is within the DRX duration and the first timer is not started.

[0194] In one embodiment, the first time instant includes at least one of the following time units: a time symbol, a time slot, or a subframe.

[0195] In one implementation, the duration of the first timer is the remaining duration of the DRX duration.

[0196] In one embodiment, the processing unit 1210 is configured to periodically start the first timer using the first moment as a reference moment.

[0197] In one implementation, the period for starting the first timer is a DRX short cycle or a DRX long cycle.

[0198] In one implementation, the duration of the first timer is configured by the network device.

[0199] In one implementation, the first timer is a DRX duration timer.

[0200] In one embodiment, the terminal device is in an RRC connected state and in a low power receiver state.

[0201] In one embodiment, as shown in FIG13 , the terminal device 1300 further includes:

[0202] The monitoring unit 1310 is configured to monitor the LP-WUS.

[0203] In one embodiment, the processing unit 1210 is configured to wake up the primary receiver upon receiving the LP-WUS.

[0204] The terminal devices 1200 and 1300 of the embodiments of the present application can implement the corresponding functions of the terminal devices in the aforementioned method embodiments. The processes, functions, implementation methods and beneficial effects corresponding to the various modules (sub-modules, units or components, etc.) in the terminal devices 1200 and 1300 can be found in the corresponding descriptions in the aforementioned method embodiments and will not be repeated here. It should be noted that the functions described in the various modules (sub-modules, units or components, etc.) in the terminal devices 1200 and 1300 of the application embodiments can be implemented by different modules (sub-modules, units or components, etc.) or by the same module (sub-module, unit or component, etc.).

[0205] FIG14 is a schematic block diagram of a network device 1400 according to an embodiment of the present application. The network device 1400 may include:

[0206] The first sending unit 1410 is used to send first configuration information to the terminal device, where the first configuration information is used to configure a first timer. The first timer is a timer that is started at the first moment after the terminal device receives the low power wake-up signal LP-WUS. The first timer is a discontinuous reception DRX duration timer.

[0207] In one implementation, the first configuration information is used to configure the duration of the first timer.

[0208] In one implementation, the duration of the first timer is the remaining duration of the DRX duration.

[0209] In one embodiment, the first time instant includes at least one of the following time units: a time symbol, a time slot, or a subframe.

[0210] In one embodiment, the first moment is a moment after a first time offset of a moment when the LP-WUS is received.

[0211] In one embodiment, as shown in FIG15 , the network device 1500 further includes:

[0212] The second sending unit 1510 is used to send second configuration information to the terminal device, where the second configuration information is used to configure the first time offset.

[0213] The network devices 1400 and 1500 of the embodiments of the present application can implement the corresponding functions of the network devices in the aforementioned method embodiments. The processes, functions, implementation methods, and beneficial effects corresponding to the various modules (sub-modules, units, or components, etc.) in the network devices 1400 and 1500 can be found in the corresponding descriptions in the aforementioned method embodiments and will not be repeated here. It should be noted that the functions described in the various modules (sub-modules, units, or components, etc.) in the network devices 1400 and 1500 of the embodiments of the application can be implemented by different modules (sub-modules, units, or components, etc.) or by the same module (sub-module, unit, or component, etc.).

[0214] Figure 16 is a schematic structural diagram of a communication device 1600 according to an embodiment of the present application. The communication device 1600 includes a processor 1610, which can call and execute a computer program from a memory to enable the communication device 1600 to implement the method in the embodiment of the present application.

[0215] In one embodiment, the communication device 1600 may further include a memory 1620. The processor 1610 may call and execute a computer program from the memory 1620 to enable the communication device 1600 to implement the method in the embodiment of the present application.

[0216] The memory 1620 may be a separate device independent of the processor 1610 , or may be integrated into the processor 1610 .

[0217] In one embodiment, the communication device 1600 may further include a transceiver 1630 , and the processor 1610 may control the transceiver 1630 to communicate with other devices. Specifically, the transceiver 1630 may send information or data to other devices, or receive information or data sent by other devices.

[0218] The transceiver 1630 may include a transmitter and a receiver. The transceiver 1630 may further include an antenna, and the number of antennas may be one or more.

[0219] In one embodiment, the communication device 1600 may be a network device of an embodiment of the present application, and the communication device 1600 may implement the corresponding processes implemented by the network device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0220] In one embodiment, the communication device 1600 may be a terminal device of an embodiment of the present application, and the communication device 1600 may implement the corresponding processes implemented by the terminal device in each method of the embodiment of the present application. For the sake of brevity, they will not be repeated here.

[0221] 17 is a schematic structural diagram of a chip 1700 according to an embodiment of the present application. The chip 1700 includes a processor 1710, which can call and execute a computer program from a memory to implement the method according to the embodiment of the present application.

[0222] In one embodiment, the chip 1700 may further include a memory 1720. The processor 1710 may call and execute a computer program from the memory 1720 to implement the method executed by the terminal device or the network device in the embodiment of the present application.

[0223] The memory 1720 may be a separate device independent of the processor 1710 , or may be integrated into the processor 1710 .

[0224] In one embodiment, the chip 1700 may further include an input interface 1730. The processor 1710 may control the input interface 1730 to communicate with other devices or chips, and specifically, may obtain information or data sent by other devices or chips.

[0225] In one embodiment, the chip 1700 may further include an output interface 1740. The processor 1710 may control the output interface 1740 to communicate with other devices or chips, and specifically, may output information or data to other devices or chips.

[0226] In one embodiment, the chip can be applied to the network device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the network device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0227] In one embodiment, the chip can be applied to the terminal device in the embodiments of the present application, and the chip can implement the corresponding processes implemented by the terminal device in each method of the embodiments of the present application. For the sake of brevity, they will not be repeated here.

[0228] The chips used in the network device and the terminal device may be the same chip or different chips.

[0229] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0230] The processor mentioned above may be a general-purpose processor, a digital signal processor (DSP), a field programmable gate array (FPGA), an application specific integrated circuit (ASIC), or other programmable logic devices, transistor logic devices, discrete hardware components, etc. The general-purpose processor mentioned above may be a microprocessor or any conventional processor, etc.

[0231] The memory mentioned above may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. The non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM).

[0232] It should be understood that the above-mentioned memories are exemplary but not restrictive. For example, the memories in the embodiments of the present application may also be static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM RAM (DR RAM), etc. In other words, the memories in the embodiments of the present application are intended to include, but are not limited to, these and any other suitable types of memories.

[0233] FIG18 is a schematic block diagram of a communication system 1800 according to an embodiment of the present application. The communication system 1800 includes a terminal device 1810 and a network device 1820 .

[0234] The terminal device 1810 is configured to start a first timer at the first moment after the terminal device receives the low power wake-up signal LP-WUS, where the first timer is a discontinuous reception DRX duration timer. The network device 1820 is configured to send first configuration information to the terminal device, where the first configuration information is used to configure the first timer. The terminal device 1810 can be used to implement the corresponding functions implemented by the terminal device in the above method, and the network device 1820 can be used to implement the corresponding functions implemented by the network device in the above method. For the sake of brevity, it will not be described here.

[0235] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When software is used for implementation, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function in accordance with the embodiment of the present application is generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from a website, computer, server or data center by wired (such as coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (such as infrared, wireless, microwave, etc.) mode to another website, computer, server or data center. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a DVD), or a semiconductor medium (eg, a solid state disk (SSD)).

[0236] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0237] Those skilled in the art will clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0238] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A method for discontinuous reception, comprising: The terminal device starts a first timer at the first moment after receiving the low power wake-up signal LP-WUS, and the first timer is a discontinuous reception DRX duration timer.

2. The method according to claim 1, wherein The first moment is a moment after the first time offset of the LP-WUS moment is received.

3. The method according to claim 2, wherein: The first time offset is determined by the terminal device or configured by the network device.

4. The method according to any one of claims 1 to 3, wherein The terminal device starts a first timer at the first moment after receiving the LP-WUS moment, including: The terminal device starts the first timer if the first timer is not started at the first moment.

5. The method according to any one of claims 1 to 3, wherein The terminal device starts a first timer at the first moment after receiving the LP-WUS moment, including: The terminal device starts the first timer when the first moment is within the DRX duration and the first timer is not started.

6. The method according to any one of claims 1 to 5, wherein The first moment includes at least one of the following time units: a time symbol, a time slot, and a subframe.

7. The method according to any one of claims 1 to 6, wherein The duration of the first timer is the remaining duration of the DRX duration.

8. The method according to any one of claims 1 to 7, wherein The method further comprises: The terminal device periodically starts the first timer with the first moment as a reference moment.

9. The method according to any one of claims 1 to 8, wherein The period for starting the first timer is a DRX short cycle or a DRX long cycle.

10. The method according to any one of claims 1 to 9, wherein The duration of the first timer is configured by the network device.

11. The method according to any one of claims 1 to 10, wherein The terminal device is in an RRC connected state and a low power receiver state.

12. The method according to any one of claims 1 to 11, wherein The method further comprises: The terminal device monitors LP-WUS.

13. The method according to any one of claims 1 to 12, wherein The method further comprises: When the terminal device receives the LP-WUS, it wakes up the main receiver.

14. A discontinuous reception method, comprising: The network device sends first configuration information to the terminal device, and the first configuration information is used to configure a first timer. The first timer is a timer started at the first moment after the terminal device receives the low power wake-up signal LP-WUS, and the first timer is a discontinuous reception DRX duration timer.

15. The method according to claim 14, wherein The first configuration information is used to configure the duration of the first timer.

16. The method according to claim 14 or 15, wherein: The duration of the first timer is the remaining duration of the DRX duration.

17. The method according to any one of claims 14 to 16, wherein The first moment includes at least one of the following time units: a time symbol, a time slot, and a subframe.

18. The method according to any one of claims 14 to 17, wherein The first moment is a moment after the first time offset of the LP-WUS moment is received.

19. The method according to claim 18, wherein The method further comprises: The network device sends second configuration information to the terminal device, where the second configuration information is used to configure the first time offset.

20. A terminal device comprising: The processing unit is configured to start a first timer at a first moment after receiving a low power consumption wake-up signal LP-WUS, where the first timer is a discontinuous reception DRX duration timer.

21. The terminal device according to claim 20, wherein: The first moment is a moment after the first time offset of the LP-WUS moment is received.

22. The terminal device according to claim 21, wherein: The first time offset is determined by the terminal device or configured by the network device.

23. The terminal device according to any one of claims 20 to 22, wherein: The processing unit is configured to start the first timer if the first timer is not started at the first moment.

24. The terminal device according to any one of claims 20 to 22, wherein: The processing unit is configured to start the first timer when the first moment is within the DRX duration and the first timer is not started.

25. The terminal device according to any one of claims 20 to 24, wherein: The first moment includes at least one of the following time units: a time symbol, a time slot, and a subframe.

26. The terminal device according to any one of claims 20 to 25, wherein: The duration of the first timer is the remaining duration of the DRX duration.

27. The terminal device according to any one of claims 20 to 26, wherein: The processing unit is configured to periodically start the first timer using the first moment as a reference moment.

28. The terminal device according to any one of claims 20 to 27, wherein: The period for starting the first timer is a DRX short cycle or a DRX long cycle.

29. The terminal device according to any one of claims 20 to 28, wherein: The duration of the first timer is configured by the network device.

30. The terminal device according to any one of claims 20 to 29, wherein: The terminal device is in an RRC connected state and a low power receiver state.

31. The terminal device according to any one of claims 20 to 30, wherein: The terminal device further includes: Monitoring unit, used to monitor LP-WUS.

32. The terminal device according to any one of claims 20 to 31, wherein: The processing unit is configured to wake up the main receiver when an LP-WUS is received.

33. A network device comprising: A first sending unit is used to send first configuration information to the terminal device, where the first configuration information is used to configure a first timer, where the first timer is a timer that is started at the first moment after the terminal device receives the low power wake-up signal LP-WUS, and the first timer is a discontinuous reception DRX duration timer.

34. The network device according to claim 33, wherein: The first configuration information is used to configure the duration of the first timer.

35. The network device according to claim 33 or 34, wherein: The duration of the first timer is the remaining duration of the DRX duration.

36. The network device according to any one of claims 33 to 35, wherein: The first moment includes at least one of the following time units: a time symbol, a time slot, and a subframe.

37. The network device according to any one of claims 33 to 36, wherein: The first moment is a moment after the first time offset of the LP-WUS moment is received.

38. The network device according to claim 37, wherein: The network device further includes: The second sending unit is used to send second configuration information to the terminal device, where the second configuration information is used to configure the first time offset.

39. A terminal device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the terminal device executes the method according to any one of claims 1 to 13.

40. A network device comprising: A processor and a memory, the memory being used to store a computer program, the processor being used to call and run the computer program stored in the memory, so that the network device executes the method according to any one of claims 14 to 19.

41. A chip, comprising: A processor, configured to call and run a computer program from a memory, so that a device equipped with the chip executes the method according to any one of claims 1 to 13 or 14 to 19.

42. A computer-readable storage medium for storing a computer program, which, when executed by a device, causes the device to perform the method according to any one of claims 1 to 13 or 14 to 19.

43. A computer program product comprising computer program instructions for causing a computer to perform the method of any one of claims 1 to 13 or 14 to 19.

44. A computer program causing a computer to perform the method of any one of claims 1 to 13 or 14 to 19.

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