Method and apparatus in a node for wireless communication

Abstract

A method and apparatus in a node for wireless communication are provided. The method comprises the following steps: a first node determines a monitoring opportunity of a wake-up signal; when the first node receives the first wake-up signal, a first timer is started at a first moment; and the first node monitors a subsequent wake-up signal in a time window in which time domains of the monitoring opportunity and the running time of the first timer are overlapped.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and more specifically, to a method and device in a node for wireless communication. Background Art

[0002] The 5th generation mobile networks (5G) new radio (NR) standard introduces discontinuous reception (DRX) technology to save power consumption of terminal devices. In order to further reduce the power consumption of terminal devices, a low power receiver (LR) is introduced to receive low power wake up signal (LP-WUS). However, after the introduction of LP-WUS, how to send LP-WUS and how the terminal device monitors LP-WUS are issues that need to be considered. Summary of the invention

[0003] The embodiment of the present application provides a method and an apparatus in a node for wireless communication. The following introduces various aspects involved in the present application.

[0004] In a first aspect, a method is provided for a first node in wireless communication, comprising: determining a listening timing for a wake-up signal; starting a first timer at a first moment when a first wake-up signal is received; and listening for subsequent wake-up signals within a time window in which the listening timing and the running time of the first timer overlap in time domain.

[0005] The beneficial effect of the embodiment of the method is that: by utilizing the characteristic of data arrival in clusters, when the second node configures the first node with a non-continuous or continuous listening opportunity for a wake-up signal, the first node triggers the operation of a first timer upon receiving the first wake-up signal, and monitors subsequent wake-up signals within a time window where the first timer operation time overlaps with the listening opportunity in the time domain; when the first timer times out, the current listening cycle no longer monitors, which helps to reduce the duration of monitoring the wake-up signal and further reduce power consumption.

[0006] In a second aspect, a method is provided for a second node in wireless communication, comprising: determining a listening time for a wake-up signal; sending a first wake-up signal; the first wake-up signal is used to trigger the first node to start a first timer at a first moment; and monitoring subsequent wake-up signals within a time window in which the running time of the first timer overlaps with the listening time in the time domain.

[0007] The beneficial effect of the embodiment of the method is that the second node can utilize the characteristic of data arrival in clusters to configure a non-continuous or continuous wake-up signal listening opportunity for the first node. The first node triggers the operation of the first timer upon receiving the first wake-up signal, and monitors subsequent wake-up signals within a time window in which the first timer operation time overlaps with the listening opportunity. When the first timer times out, the current listening cycle will no longer be monitored, which helps to reduce the duration of monitoring the wake-up signal and further reduce power consumption.

[0008] According to a third aspect, a method is provided for a first node of wireless communication, comprising: determining a listening time for a wake-up signal and configuration information of long and short periods of discontinuous reception; determining a corresponding PDCCH detection time according to the type of the currently assigned discontinuous reception period; and monitoring the wake-up signal within the listening time of the wake-up signal associated with the corresponding PDCCH detection time.

[0009] In a possible embodiment, the method further includes: when the discontinuous reception short cycle timer times out, determining the current belonging discontinuous reception short cycle; when the discontinuous reception short cycle timer is started at least twice and does not time out, determining the current belonging discontinuous reception long cycle.

[0010] In another possible embodiment, a condition for starting or restarting the discontinuous reception short cycle timer satisfies at least one of the following:

[0011] A wake-up signal is received;

[0012] Data is received within the discontinuous reception time window or data is received within the discontinuous reception time extension window;

[0013] Receiving scheduling information within the discontinuous reception time window or receiving scheduling information within the discontinuous reception time extension window;

[0014] Stop MR from monitoring PDCCH;

[0015] The scheduling information is received, and the scheduling information triggers the deactivation timer or the stop monitoring notification is received.

[0016] In other possible embodiments, the time for starting or restarting the discontinuous reception short cycle timer is any of the following times:

[0017] The moment the wake-up signal is received;

[0018] The time when the scheduling information is received;

[0019] The time when the MR stops monitoring the PDCCH;

[0020] The moment when the wake-up signal is received and the MR stops monitoring the PDCCH;

[0021] The wake-up signal is received and the scheduling information is received;

[0022] The wake-up signal is received, and the scheduling information is subsequently received, and the scheduling information triggers the time when the inactivation timer times out or the stop monitoring notification is received.

[0023] The beneficial effect of the embodiment of the method is that it clarifies the assistance method of the discontinuous reception long and short cycles and the monitoring timing of the wake-up signal, so that the first node can effectively reduce the monitoring time and save power consumption.

[0024] In a fourth aspect, a method in a second node for wireless communication is provided, comprising: determining a listening time for a wake-up signal, and configuration information of discontinuous reception of long and short cycles; and sending a wake-up signal.

[0025] In a possible embodiment, the method further includes: when the discontinuous reception short cycle timer times out, determining the current belonging discontinuous reception short cycle; when the discontinuous reception short cycle timer is started at least twice and does not time out, determining the current belonging discontinuous reception long cycle.

[0026] In another possible embodiment, a condition for starting or restarting the discontinuous reception short cycle timer satisfies at least one of the following:

[0027] A wake-up signal is received;

[0028] Data is received within the discontinuous reception time window or data is received within the discontinuous reception time extension window;

[0029] Receiving scheduling information within the discontinuous reception time window or receiving scheduling information within the discontinuous reception time extension window;

[0030] Stop MR from monitoring PDCCH;

[0031] The scheduling information is received, and the scheduling information triggers the deactivation timer or the stop monitoring notification is received.

[0032] In other possible embodiments, the time for starting or restarting the discontinuous reception short cycle timer is any of the following times:

[0033] The moment the wake-up signal is received;

[0034] The time when the scheduling information is received;

[0035] The time when the MR stops monitoring the PDCCH;

[0036] The moment when the wake-up signal is received and the MR stops monitoring the PDCCH;

[0037] The wake-up signal is received and the scheduling information is received;

[0038] The wake-up signal is received, and the scheduling information is subsequently received, and the scheduling information triggers the time when the inactivation timer times out or the stop monitoring notification is received.

[0039] The beneficial effect of the embodiment of the method is that it clarifies the assistance method of the discontinuous reception long and short cycles and the monitoring timing of the wake-up signal, so that the first node can effectively reduce the monitoring time and save power consumption.

[0040] In a fifth aspect, a first node used for wireless communication is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the first node executes the method described in the first aspect or the third aspect.

[0041] In the sixth aspect, a second node used for wireless communication is provided, comprising a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the second node executes the method described in the second aspect or the fourth aspect.

[0042] In a seventh aspect, an embodiment of the present application provides a communication system, which includes the first node and / or the second node described above. In another possible design, the system may also include other devices that interact with the first node or the second node in the solution provided in the embodiment of the present application.

[0043] In an eighth aspect, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program, and the computer program enables a computer to execute part or all of the steps in the methods of the above aspects.

[0044] In a ninth aspect, an embodiment of the present application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program, and the computer program is operable to cause a computer to execute some or all of the steps in the above-mentioned various aspects of the method. In some implementations, the computer program product can be a software installation package.

[0045] In the tenth aspect, an embodiment of the present application provides a chip, which includes a memory and a processor. The processor can call and run a computer program from the memory to implement some or all of the steps described in the methods of the above aspects. BRIEF DESCRIPTION OF THE DRAWINGS

[0046] Figure 1 The present invention is a diagram showing an example of a system architecture of a wireless communication system to which the embodiments of the present application can be applied.

[0047] Figure 2 Schematic diagram of a network architecture to which the embodiments of the present application can be applied.

[0048] Figure 3A and Figure 3B The figure is a schematic diagram of the structure of a wireless protocol stack to which the embodiments of the present application can be applied.

[0049] Figure 4A and Figure 4B Schematic diagram of a DRX mechanism applicable to an embodiment of the present application.

[0050] Figure 5A This is another possible structural diagram of a low-power wake-up module applicable to the embodiment of the present application.

[0051] Figure 5B This is another possible structural diagram of a low-power wake-up module applicable to the embodiment of the present application.

[0052] Figure 5C This is another possible structural diagram of a low-power wake-up module applicable to the embodiment of the present application.

[0053] Figure 6 A flowchart of a method in a first node for wireless communication provided in an embodiment of the present application.

[0054] Figure 7 A flowchart of a method in a first node and a second node for wireless communication provided in an embodiment of the present application.

[0055] Figure 8 for Figure 6 and Figure 7 An example of one of the methods shown.

[0056] Fig. 9 for Figure 6 and Figure 7 Yet another example of the method shown.

[0057] Fig.10 for Figure 6 and Figure 7 Yet another example of the method shown.

[0058] Fig.11 Schematic diagram of the implementation method of the extended timer.

[0059] Fig.12 A flowchart of another method in a first node for wireless communication provided in an embodiment of the present application.

[0060] Fig.13 Schematic diagram of the assistance between the DRX mechanism and the LP-WUS mechanism.

[0061] Fig.14A schematic diagram of the structure of a first node for wireless communication provided in an embodiment of the present application.

[0062] Fig.15 A schematic diagram of the structure of a second node for wireless communication provided in an embodiment of the present application.

[0063] Fig.16 It is a structural diagram of a communication device provided in an embodiment of the present application.

[0064] Fig.17 A schematic diagram of the hardware modules of a communication device provided in an embodiment of the present application. DETAILED DESCRIPTION

[0065] Communication system architecture

[0066] The wireless communication system of the embodiment of the present application may include a network device and a terminal device. The network device may be a device that communicates with the terminal device. The network device may provide communication coverage for a specific geographical area and may communicate with the terminal device located in the coverage area.

[0067] Figure 1 A wireless communication system 100 is exemplarily shown to include a network device 110 and multiple terminal devices, for example, terminal devices 120a to 120j in the figure. Optionally, the wireless communication system 100 may include multiple network devices and each network device may include other number of terminal devices within its coverage area, which is not limited in the embodiments of the present application.

[0068] Optionally, the wireless communication system may also include other network entities such as a network controller and a mobility management entity, which is not limited in the embodiments of the present application.

[0069] It should be understood that the technical solutions of the embodiments of the present application can be applied to various communication systems, such as: fifth-generation (5th-generation, 5G) system or new wireless (new radio, NR) system, long-term evolution (long term evolution, LTE) system, LTE frequency division duplex (frequency division duplex, FDD) system, LTE time division duplex (time division duplex, TDD) system, enhanced long-term evolution (advanced long term evolution, LTE-A) system, enhanced 5G (5G advanced) system, etc. The technical solutions provided in the present application can also be applied to future communication systems, such as the sixth-generation (6th-generation, 6G) mobile communication system, satellite communication system, and so on.

[0070] The terminal device in the embodiment of the present application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication device, user agent or user device. The terminal device in the embodiment of the present application may be a device that provides voice and / or data connectivity to a user, and may be used to connect people, objects and machines, such as a handheld device with wireless connection function, a vehicle-mounted device, etc. The terminal device in the embodiment of the present application can be a mobile phone, a tablet computer, a laptop, a PDA, a camera device, a mobile internet device (MID), a wearable device, a virtual reality (VR) device, an augmented reality (AR) device, a wireless terminal in industrial control, a wireless terminal in self-driving, a wireless terminal in remote medical surgery, a wireless terminal in smart grid, a wireless terminal in transportation safety, a wireless terminal in smart city, a wireless terminal in smart home, etc. Optionally, the terminal device can be used to act as a base station. For example, the terminal device can act as a scheduling entity, which provides sidelink signals between UEs in vehicle-to-everything (V2X) or device-to-device (D2D), etc. For example, a cellular phone and a car communicate with each other using sidelink signals. Cellular phones and smart home devices communicate with each other without relaying the communication signal through a base station.

[0071] The network device in the embodiment of the present application may be a device for communicating with a terminal device, and the network device may also be referred to as an access network device or a wireless access network device, such as a base station (BS). The network device in the embodiment of the present application may refer to a wireless access network (RAN) node or a next generation RAN (NG-RAN) node (or device) that connects a user device to a wireless network. A base station may broadly cover various names as follows, or be replaced with the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, transmitting and receiving point (TRP), transmitting point (TP), master station (MeNB), secondary station (SeNB), multi-standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, base band unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station may be a macro base station, a micro base station, a relay node, a transmitting and receiving node, a donor node, or the like, or a combination thereof. The base station may also refer to a communication module, modem or chip used to be set in the aforementioned equipment or device. The base station may also be a mobile switching center and a device that performs the base station function in D2D, V2X, machine-to-machine (M2M) communication, a network side device in a 6G network, and a device that performs the base station function in a future communication system. The base station may support networks with the same or different access technologies. The embodiments of the present application do not limit the specific technology and specific device form adopted by the network equipment.

[0072] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move based on the location of the mobile base station. In other examples, a helicopter or drone can be configured to act as a device that communicates with another base station.

[0073] In some deployments, the network device in the embodiments of the present application may refer to a CU or a DU, or the network device includes a CU and a DU. The gNB may also include an AAU.

[0074] The network equipment and terminal equipment can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water surface; they can also be deployed on aircraft, balloons and satellites in the air. The embodiments of the present application do not limit the scenarios in which the network equipment and terminal equipment are located.

[0075] It should be understood that all or part of the functions of the communication device in the present application may also be implemented by software functions running on hardware, or by virtualization functions instantiated on a platform (eg, a cloud platform).

[0076] Figure 2 A schematic diagram of a network architecture 200 of an embodiment of the present application is exemplarily shown. The network architecture 200 illustrates the network architecture of a 5GNR / LTE / LTE-A system, which may also be referred to as a 5G system (5G system, 5GS) / evolved packet system (evolved packet system, EPS) network architecture. The network architecture 200 includes a network device 110, a terminal device 120, a 5G core network (5G core network, 5GC) / evolved packet core (evolved packet core, EPC) 210, a home subscriber server (home subscriber server, HSS) / unified data management (unified data management, UDM) 220, and at least one of an Internet service 230. Figure 2 The network device and terminal device in the figure are illustrated by taking RAN and UE as examples respectively.

[0077] like Figure 2As shown, the network device 110 provides user plane protocol and control plane protocol termination towards the terminal device 120. The network device 110 is connected to the 5GC / EPC210 via the S1 / NG interface. The 5GC / EPC210 includes a mobility management entity (MME) / authentication management field (AMF) / session management function (SMF) 211, other MME / AMF / SMF214, a service gateway (S-GW) / user plane function (UPF) 212 and a packet data network gateway (P-GW) / UPF213. MME / AMF / SMF211 is a control node that handles signaling between the terminal device 120 and the 5GC / EPC210. ​​In general, MME / AMF / SMF211 provides bearer and connection management. All user internet protocol (IP) packets are transmitted through S-GW / UPF 212, which is itself connected to P-GW / UPF 213. P-GW provides UE IP address allocation and other functions. P-GW / UPF 213 is connected to Internet services 230. Internet services 230 include operator-specific Internet protocol services, which may specifically include the Internet, intranet, IP multimedia subsystem (IMS), and packet-switched streaming services. It can be seen that network architecture 200 provides packet-switched services, but those skilled in the art will readily appreciate that the various concepts presented throughout this application can be extended to networks that provide circuit-switched services or other cellular networks.

[0078] Figure 3A and Figure 3B A schematic diagram of the wireless protocol stack structure of an embodiment of the present application is shown respectively. Figure 3A and Figure 3B The 5G wireless protocol stack is used as an example for introduction. The 5G wireless protocol stack is divided into two planes: the user plane (UP) protocol stack and the control plane (CP) protocol stack. The user plane protocol stack is the protocol cluster used for user data transmission, and the control plane protocol stack is the protocol cluster used for control signaling transmission of the 5G system. The names of the layers of each protocol stack are as follows:

[0079] like Figure 3AAs shown, the user plane protocol stack includes, from top to bottom, a service data adaptation protocol (SDAP) layer, a packet data convergence protocol (PDCP) layer, a radio link control (RLC) layer, a medium access control (MAC) layer, and a physical (PHY) layer.

[0080] like Figure 3B As shown, the control plane protocol stack includes, from top to bottom: non-access stratum (NAS); radio resource control (RRC) layer, PDCP layer, RLC layer, MAC layer and PHY layer.

[0081] It should be understood that different layers in the above protocol stack have different functions, and the communication function between the terminal device and the network device is realized through the interaction between the layers. With the development of artificial intelligence technology, artificial intelligence-assisted computing functions have penetrated into the processing implementation methods of the above protocol stack. For example, the scheduling algorithm of the MAC layer and the encoding and decoding algorithm of the PHY layer can apply artificial intelligence algorithms to improve the performance of the communication algorithm.

[0082] As an example, Figure 3A and Figure 3B The wireless protocol architecture in is applicable to the first node in this application.

[0083] As an example, Figure 3A and Figure 3B The wireless protocol architecture in is applicable to the second node in this application.

[0084] It should be understood that some functions in the wireless protocol architecture can also be implemented in one or more devices. For example, the functions of different layers in the control plane protocol stack can be combined and implemented by multiple nodes on the network side.

[0085] It should be understood that the interpretation of the terms in the embodiments of the present application can refer to the specification protocols TS36 series, TS37 series and TS38 series of the 3rd generation partnership project (3GPP), but can also refer to the specification protocols of the Institute of Electrical and Electronics Engineers (IEEE).

[0086] For ease of understanding, some technical terms involved in the embodiments of the present application are explained below:

[0087] 1) Low power wake-up module and main communication module

[0088] The terminal device may use a separate low power wake-up module to receive a wake-up signal. The wake-up signal received by the terminal device using the low power wake-up module may be referred to as a low power wake-up signal (LPWUS).

[0089] The low-power wake-up module can be implemented using a separate small circuit or chip with a simple structure, and its power consumption is low. The low-power wake-up module can be called a wake-up radio (WUR), or a wake-up circuit, or LR for short, or a low-power wake-up receiver (LP-WUR), etc., and this application is not limited to its naming. For the convenience of explanation below, it is uniformly described as a low-power wake-up module. In addition, for the convenience of explanation below, the signal received by the terminal device using the low-power wake-up module is referred to as a wake-up signal.

[0090] The main communication module of the terminal device can also be called the main radio (MR) or the main receiver. When the MR is awakened, the terminal device can enter the radio resource control (RRC) connection state. Exemplarily, when the terminal device is idle, the main communication module can be turned off or set to a deep sleep state, and the LP-WUS can be monitored through the LP-WUR, thereby reducing the power consumption of the terminal device. Another example is that for a terminal device in a connected state (CONNECTED), both MR and LR can be run.

[0091] 2) On-off keying (OOK) modulation

[0092] In order to reduce the power consumption of the wake-up circuit, LP-WUS can use OOK modulation, and the corresponding wake-up circuit can use the envelope detection method to receive the wake-up signal. When OOK modulation is used, each (encoded) bit corresponds to a symbol (symbol, also known as a chip). When the bit is 1, a signal is sent within the symbol length (that is, the signal power within the symbol length is not 0), and for convenience, it can be called an ON signal. When the bit is 0, no signal is sent within the symbol length (that is, the signal power within the symbol length is 0), and for convenience, it can be called an OFF signal.

[0093] The 5G NR system uses OFDM modulation, and the network equipment of the 5G NR system can send orthogonal frequency division multiplexing (OFDM) modulated signals. In order to be as compatible as possible with the 5G NR system, the above OOK signal can be implemented through an OFDM modulated transmitter. In one possible case, the length of an OOK symbol can be the same as the length of an OFDM symbol. At this time, when an ON signal of a symbol length is required, the transmitter sends a specific signal to make the contour of the signal within the symbol length as square wave as possible. When an OFF signal is required, the transmitter is turned off for a symbol length. In another possible case, multiple OOK symbols can be sent within the length of an OFDM symbol through an OFDM transmitter to shorten the length of the OOK symbol. More OOK symbols can be sent in the same time to increase the data rate.

[0094] 3) Frequency shift keying (FSK) modulation

[0095] LP-WUS can also use FSK modulation. When FSK modulation is used, different information uses different frequency resources. For example, 2FSK can carry 1 bit of information. When the information bit is 0, the information can be sent on frequency resource f0, and no information is sent on frequency resource f1; when the information bit is 1, the information can be sent on frequency resource f1, and no information is sent on frequency resource f0.

[0096] FSK can also support higher modulation orders to carry more information. For example, 4FSK can carry 2 bits of information. When the information bit is 00, the information can be sent on frequency resource f0, and no information is sent on frequency resources f1, f2, and f3; when the information bit is 01, the information can be sent on frequency resource f1, and no information is sent on frequency resources f0, f2, and f3; when the information bit is 10, the information can be sent on frequency resource f2, and no information is sent on frequency resources f0, f1, and f3; when the information bit is 11, the information can be sent on frequency resource f3, and no information is sent on frequency resources f0, f1, and f2. Similarly, the receiving end can compare the power levels on multiple frequency resources to determine what information is being transmitted.

[0097] 4) Discontinuous reception (DRX)

[0098] The DRX mechanism can make the terminal device sleep periodically in certain time periods, thereby saving the power consumption of the terminal device. The DRX used by the terminal device in the radio resource control (RRC) connected state is connected discontinuous reception (C-DRX).

[0099] For example, the DRX cycle includes a "wake-up time (DRXON)" part and a "sleep time (DRXOFF)" part. During the wake-up time, the terminal device monitors and receives the physical downlink control channel (PDCCH); during the sleep time, the terminal device may have the opportunity not to monitor or receive the PDCCH to reduce power consumption. Specifically, the DRX mechanism includes a duration timer (onDurationTimer or drx-onDurationTimer), such as Figure 4A As shown in the figure, at the beginning of each DRX cycle (i.e., the beginning of the on Duration of each DRX cycle), the terminal device needs to start the drx-onDurationTimer. When the drx-onDurationTimer times out, it means that the "On Duration" time has ended, and the terminal device enters the "Opportunity for DRX" time. The DRX mechanism also includes a deactivation timer (InactivityTimer or drx-InactivityTimer), such as Figure 4BAs shown. Every time the terminal device receives a DCI that schedules a new data packet, it starts / restarts the drx-InactivityTimer. The time when drx-OnDurationTimer and drx-InactivityTimer run is called the active time (Active Time). During the Active Time, the terminal device monitors the PDCCH, receives the channel state information reference signal (CSI-RS), provides channel state information (CSI) feedback, and sends a sounding reference signal (SRS). In this embodiment, the terminal device does not monitor the PDCCH outside the Active Time, does not provide periodic CSI feedback (periodical CSI feedback) and semi-persistent CSI feedback (semi-persistent CSI feedback), and does not send periodic SRS (periodical SRS) and semi-persistent SRS (semi-persistent SRS). The C-DRX cycle length, the drx-OnDurationTimer length, and the drx-InactivityTimer length are all configured by the network device to the terminal device.

[0100] In addition, the network device may also configure other DRX parameters for the terminal device, such as a short DRX cycle, a long DRX cycle, etc.

[0101] In the DRX mechanism, the configuration of the long DRX cycle can be a default configuration, and the configuration of the short DRX cycle can be an optional configuration. For a terminal device configured with a short DRX cycle, the long DRX cycle and the short DRX cycle can be converted in the following ways:

[0102] Generally, the terminal device uses the short DRX cycle when any of the following conditions are met: 1. The short DRX cycle timer (shortCycleTimer) is running;

[0103] Generally, when any of the following conditions is met, the terminal device uses a long DRX cycle: 1. The short DRX cycle timer (Drx-shortCycleTimer) times out; 2. The terminal device receives a long DRX command MCA CE (long DRX command MAC20CE).

[0104] In some embodiments, LP-WUS can support a bandwidth of 5MHz-20MHz. When LP-WUS is embedded in a related communication system, the main communication module (or MR) and the low power wake-up module (LP-WUR or LR) on the terminal device side can be two modules or integrated into one module. Among them, LP-WUR can support multiple receiver architectures. FIG. 5A to FIG. 5C Taking the three receiver architectures in as examples, LP-WUR is illustrated.

[0105] Figure 5A It is a schematic structural diagram of a LP-WUR based on radio frequency (RF) envelope detection. Figure 5A The receiver architecture shown includes a matching network 2001, an RF bandpass filter (BPF) 2002, an RF low noise amplifier (LNA) 2003, an RF envelope detector 2004, a baseband (BB) asymmetric processing (AMP) 2005, a BB low pass filter (LPF) 2006, a 1-bit or multi-bit analog-to-digital converter (ADC) 2007 and a digital BB processing 2008.

[0106] exist Figure 5A In the architecture shown, the RF signal is directly converted to a baseband signal through an RF envelope detector. Relatively low power consumption can be achieved due to the absence of a local oscillator (LO) and a phase-locked loop (PLL). Optionally, the architecture may include a 1-bit or multi-bit ADC, an RF LNA and / or a BB AMP, a high-Q matching network and / or an RF BPF and / or a BB LPF. Optionally, in order to support multiple frequency bands and / or carriers, multiple high-Q matching networks and / or RF BPFs or multiple off-chip components may be required to suppress adjacent channel interference or interference from legacy NR signals and / or other LP WUS on adjacent subcarriers, and support frequency band and / or carrier tuning.

[0107] Figure 5BA schematic structural diagram of a LP-WUR based on a heterodyne architecture with intermediate frequency (IF) envelope detection is shown. Figure 5B The receiver architecture shown includes a matching network 3001, an RF BPF 3002, an RFLNA 3003, a mixer 3004, an LO 3005, an IF AMP 3006, an IFBPF 3007, an IF envelope detector 3008, a BB AMP 3009, a BB LPF 3010, a 1-bit or multi-bit ADC 3011 and a digital BB processing 3012.

[0108] exist Figure 5B In the architecture shown, the RF signal is converted to an intermediate frequency (IF) signal through an RF mixer with an LO. The IF signal is converted to a baseband signal by IF envelope detection. Depending on the design, there may be one or more intermediate frequency stages to achieve lower power consumption by relaxing the accuracy and stability requirements of the LO. The architecture can apply a 1-bit or multi-bit ADC. High-Q matching networks and / or RF BPFs and / or IF BPFs (and / or BB LPFs) can be used to suppress adjacent channel interference or interference from traditional NR signals and / or other LP WUS on adjacent subcarriers. Optionally, the architecture can apply some components to improve sensitivity, such as RF LNAs and / or IF AMPs and / or BB AMPs. Optionally, the architecture can achieve band and / or carrier tuning by tuning the LO frequency.

[0109] Figure 5C A schematic structural diagram of a LP-WUR based on a homodyne or zero-IF architecture with baseband (BB) envelope detection is shown. Figure 5C The receiver architecture shown includes a matching network 4001 , an RF BPF 4002 , an RFLNA 4003 , a mixer 4004 , an LO 4005 , a BB AMP 4006 , a BB LPF / BPF 4007 , a 1-bit or multi-bit ADC 4008 , and a digital BB processing 4009 .

[0110] exist Figure 5C In the architecture shown, band and / or carrier tuning can be achieved by tuning the LO frequency. Adjacent channel interference or interference from legacy NR signals and / or other LP WUS on adjacent subcarriers can be more effectively and simply suppressed by using a BBBPF / LPF instead of a high-Q matching network and / or RF BPF. An RF LNA can be applied to improve sensitivity. Baseband envelope detection (not shown) can be done in the analog domain (before ADC) or in the digital domain (after ADC).

[0111] Combination of the above FIG. 5A to FIG. 5C A variety of LP-WUR architectures are introduced. All LP-WUR architectures can be applied to on-off keying (OOK) modulation. Some architectures can also be applied to other modulations, such as frequency-shift keying (FSK).

[0112] The above article introduces various LP-WUR architectures and LP-WUS generation methods. When the network device sends LP-WUS, how to send LP-WUS and how to receive LP-WUS in the terminal device are both issues that need to be resolved. In addition, during the PDCCH monitoring process, the DRX mechanism and the LP-WUS mechanism are two energy-saving mechanisms, and how to coordinate the two mechanisms is also an issue that needs to be considered.

[0113] Based on this, an embodiment of the present application proposes a method for wireless communication. In order to further save the power consumption of LP-WUR receiving LP-WUS, the first node in this embodiment determines the listening time of LP-WUS. When the first node receives the first LP-WUS, it triggers the first node to receive subsequent LP-WUS during the operation of the first timer, so that the first node does not receive LP WUS at other times in the current cycle, so as to achieve greater power saving gains.

[0114] For ease of understanding, the following Figure 6 A method for wireless communication according to an embodiment of the present application is introduced. Figure 6 It is a schematic flowchart of a method in a first node for wireless communication according to an embodiment of the present application. Figure 6 It is introduced at the first node.

[0115] As an embodiment, the first node may be a network-controlled repeater (NCR).

[0116] As an embodiment, the first node may be a terminal device. Figure 1 The terminal devices 120a to 120j shown. The second node may be a network device. For example, the second node is an access network device or a core network device. For another example, the second node is a gNB. For another example, the second node is an LMF. The following embodiments are basically illustrated by taking the first node as a UE and the second node as a gNB as an example.

[0117] As an embodiment, the first node may be a relay, such as a relay terminal.

[0118] As an embodiment, the first node may be any network device, for example, Figure 1 A network device 110 is shown.

[0119] In some embodiments, the first node may be in a connected state (CONNECTED).

[0120] Figure 6 The method shown may include steps S600 to S640, and these steps are respectively introduced below.

[0121] In S610 , the first node determines a monitoring timing for a wake-up signal.

[0122] In a possible embodiment, the first node determines the zeroth set time length before the wake-up time (DRXON) as the monitoring time of the wake-up signal according to the protocol provisions. The value of the zeroth set time length is set according to actual needs.

[0123] In another possible embodiment, the first node may determine the monitoring timing of the wake-up signal based on the configuration information from the second node. Exemplarily, the second node may send first information to the first node, where the first information is used to directly or indirectly indicate the monitoring timing of the wake-up signal.

[0124] Exemplarily, the first information includes at least one of the following parameters: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal. The first node calculates the monitoring timing of the LP WUS according to these parameters.

[0125] In some embodiments, the first information may be an RRC parameter, and the first information may be carried in RRC signaling or other control signaling.

[0126] As an example, the number of listening opportunities occupied by a wake-up signal can be determined according to the configuration of a higher layer. Multiple listening opportunities can be used to send at least one wake-up signal. In some embodiments, multiple listening opportunities can repeat (repetition) a wake-up signal. In some embodiments, multiple listening opportunities can respectively send multiple wake-up signals.

[0127] The following description takes the wake-up signal LP-WUS as an example.

[0128] In step S620, when the first node receives the first wake-up signal, a first timer is started at a first moment.

[0129] In some embodiments, in addition to receiving the first LP-WUS, the triggering condition for the first node to start the first timer also includes at least one of the following: a. receiving scheduling information within a first set time after monitoring the first LP-WUS; b. receiving scheduling information within a second set time after the end of the monitoring opportunity corresponding to the first LP-WUS. The values ​​of the first set time and the second set time are set according to actual needs. The values ​​of different set time can be the same or different.

[0130] In some embodiments, the first moment is any one of the following moments: a. the moment when the first LP-WUS is received; b. the moment when scheduling information is received; c. the moment when the MR stops monitoring the PDCCH.

[0131] In some embodiments, the timing duration of the first timer may be greater than or equal to one LP-WUS short cycle and less than or equal to one LP-WUS long cycle.

[0132] In some embodiments, the LP-WUS monitoring opportunity may be a plurality of non-continuous time windows in the LP-WUS cycle (such as the following Figure 8 Alternatively, the LP-WUS monitoring timing may be a continuous time window in the LP-WUS cycle (as described later in Fig. 9 shown).

[0133] In some embodiments, a single LP-WUS indicates one or more carriers, and a UE receives a single LP-WUS and can monitor PDCCH on one or more carriers. The correspondence between LP-WUS and carriers can be configured by RRC, or the correspondence between LP-WUS indication and carriers can be determined based on which carriers the UE monitors PDCCH.

[0134] In some embodiments, the first node may receive the first LP-WUS via the LP-WUR, and thus the LP-WUR is in an active state. In some embodiments, the LP-WUR may be used only to receive the LP-WUS, thereby reducing power consumption of the first node.

[0135] In some embodiments, the first LP-WUS is used to wake up the MR in the first node. It should be understood that since the LP-WUS can be independent of the first node, the MR being awakened can also be referred to as the first node being awakened. Before receiving the first LP-WUS, the MR is in a closed state. The first node can determine whether to wake up the MR based on the first LP-WUS. In some embodiments, the first LP-WUS can also be used to wake up other modules in the first node except the MR.

[0136] In step S630, the wake-up signal is monitored within a time window in which the monitoring opportunity and the running time of the first timer overlap in time domain.

[0137] In some embodiments, during the running of the first timer, the wake-up signal is monitored according to the monitoring opportunity corresponding to the short monitoring period.

[0138] In some embodiments, during the running of the first timer, the wake-up signal is monitored according to the monitoring timing corresponding to the long monitoring period.

[0139] In some embodiments, after the first timer times out, the first node stops monitoring subsequent LP-WUS until the LP-WUS monitoring opportunity corresponding to the next LP-WUS monitoring period. Exemplarily, after the first timer times out, the first node stops monitoring subsequent LP-WUS until the next LP-WUS monitoring long period arrives, and the first node starts monitoring LP-WUS during the monitoring opportunity of the monitoring long period.

[0140] In some embodiments, after the first timer times out, the first node monitors the LP-WUS at a lower frequency. For example, after switching from a short monitoring period of the LP-WUS to a long monitoring period, the first node monitors the LP-WUS within the monitoring time corresponding to the long monitoring period of the LP-WUS.

[0141] In some embodiments, during the running of the first timer, if a triggering event for restarting the first timer occurs, the first timer is restarted again.

[0142] In some embodiments, the triggering condition for restarting the first timer includes at least one of the following: a. the first node receives LP-WUS; b. the scheduling information is received within a set time after the LP-WUS is monitored; c. the scheduling information is received within a period of time after the end of the monitoring opportunity corresponding to the LP-WUS is monitored. d. Stop MR from monitoring PDCCH. It should be understood that the first node can stop monitoring PDCCH by itself, or the base station can notify the first node to stop monitoring PDCCH. The specific notification can be MAC CE or DCI, or it can be another type of signal received by LR, such as OOK.

[0143] In some embodiments, the timing for the first node to restart the first timer includes at least one of the following: a. the moment of receiving LP-WUS; b. the moment of receiving scheduling information; c. the moment of stopping MR from monitoring PDCCH.

[0144] Optionally, the condition for the first node to start / restart the first timer and the timing of starting / restarting the first timer can be configured independently. For example, when the MR of the first node stops monitoring the PDCCH, it decides to start or restart the first timer, and the timing of starting or restarting the first timer may be receiving the LP-WUS, then the first node traces back to the moment of receiving the LP-WUS as the start time or restart time of the first timer.

[0145] Combined with the following Figure 7 A method for wireless communication according to an embodiment of the present application is introduced. Figure 7 It is a schematic flowchart of a method in a first node for wireless communication according to an embodiment of the present application. Figure 7 It is introduced from the perspective of the interaction between the first node and the second node.

[0146] Figure 7 The method shown may include steps S700 to S750, and these steps are respectively introduced below.

[0147] In S700 , the second node determines a monitoring timing for a wake-up signal.

[0148] In a possible embodiment, the second node may determine the monitoring timing of the wake-up signal according to a protocol agreement.

[0149] In another possible embodiment, the second node may send a configuration parameter to the first node, so that the first node determines a monitoring timing for the wake-up signal.

[0150] In S710, the second node sends first information to the first node.

[0151] Exemplarily, the first information includes at least one of the following parameters: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal. The first node calculates the monitoring timing of the LP WUS according to these parameters. Other examples can be found above.

[0152] In S720, the first node determines a monitoring timing for the wake-up signal according to the received first information.

[0153] In S730, the second node sends a first wake-up signal to the first node.

[0154] In S740, a first timer is started at a first moment.

[0155] In S750, a subsequent wake-up signal is monitored within a time window in which the wake-up timing overlaps with the running time of the first timer.

[0156] For specific examples of S720, S730 and S750, please refer to the above Figure 6 The corresponding introduction will not be repeated here.

[0157] For ease of understanding, the following Figures 8 to 10 The three embodiments shown are used to illustrate the above method in detail.

[0158] like Figure 8 As shown in FIG. 1 , the base station configures several non-continuous LP-WUS monitoring opportunities for the UE. Specifically, the base station configures four parameters for the UE: the long monitoring period of LP-WUS, the short monitoring period of LP-WUS, the time offset value (offset), and the continuous monitoring time of LP WUS (Time). The UE can calculate the monitoring opportunity of LP-WUS based on these four parameters. Figure 8 As shown, the monitoring opportunities include Figure 8 The boxes show monitoring timing 1, monitoring timing 2, monitoring timing 3, monitoring timing 4 and monitoring timing 5.

[0159] When the UE monitors the first LP-WUS at time t0 of monitoring opportunity 1, or monitors the uplink / downlink scheduling information indicated by the DCI, timer 1 is started. During the operation of timer 1 (from time t0 to time t1), the UE monitors the first LP-WUS at the configured LP-WUS monitoring opportunity (such as Figure 8 In the above process, the UE monitors the subsequent LP-WUS at listening opportunity 2 and listening opportunity 3 (i.e., monitors the LP-WUS at the short listening period (higher frequency) of the LP-WUS). In a possible embodiment, during the operation of timer 1, if an event to restart timer 1 occurs, timer 1 is restarted. After timer 1 times out, the UE monitors the LP-WUS at a lower frequency. Specifically, the UE monitors the LP-WUS at listening opportunity 5 corresponding to the long listening period of the LP-WUS, and does not monitor the LP-WUS at listening opportunity 4. In the above process, the conditions and time for the UE to start / restart timer 1 refer to the above embodiment and are not repeated here.

[0160] Figure 8 In the embodiment shown, the UE temporarily stops monitoring the LP-WUS by "timer 1 timeout" until the next LP-WUS monitoring opportunity corresponding to the long monitoring period. In addition, the base station may also notify the UE to suspend monitoring the LP-WUS until the next LP-WUS monitoring opportunity corresponding to the long monitoring period. In this way, the UE does not need to receive the LP WUS in some time periods, so as to achieve greater power saving gain.

[0161] like Fig. 9As shown, the base station configures continuous LP-WUS monitoring opportunities for the UE. Specifically, the base station configures two parameters for the UE: the LP-WUS monitoring long period and the time offset (offset). Or the time offset value configured by the base station is 0, and only the LP-WUS monitoring long period is configured. The UE monitors LP-WUS by default from the start time of a long monitoring period, and starts timer 2 when the first LP-WUS is monitored. During the operation of timer 2 (from t0' to t1'), if the following two situations occur, the UE stops monitoring LP-WUS for the remaining time period of this long monitoring period:

[0162] The first case: the base station notifies the UE to stop monitoring the LP-WUS. For example, the specific notification may be a MACCE or a DCI, or may be another type of signal received by the LR, such as OOK.

[0163] The second situation: after timer 2 times out, the LP-WUS is stopped from being monitored during the remaining time period of the current long monitoring cycle.

[0164] It should be understood that the conditions for starting / restarting timer 2 are the same as the start / restart conditions of the first timer described above, and are not repeated here. The time for starting / restarting timer 2 is the same as the start / restart time of the first timer described above, and are not repeated here.

[0165] and Figure 8 The difference between the shown embodiments is that Fig. 9 The illustrated embodiment may allow the UE to stop monitoring the LP-WUS during the remaining time period of the current long monitoring cycle, so as to achieve greater power saving gain.

[0166] In another embodiment, in addition to stopping monitoring LP-WUS in the remaining time period of the current monitoring long cycle, the UE may also stop monitoring LP-WUS in the middle period of a monitoring long cycle. Specifically, in the time window where the time domain of the first timer running time and the second timer running time overlap, the monitoring of the wake-up signal is suspended; wherein the duration of the second timer is less than the duration of the first timer.

[0167] In some possible embodiments, the expiration of the third timer triggers the start of the second timer, wherein:

[0168] The triggering conditions of the third timer include: receiving scheduling information within a first set time period after monitoring the first wake-up signal; receiving scheduling information within a second set time period after the end time of the monitoring opportunity corresponding to the first wake-up signal; stopping the MR from monitoring the PDCCH;

[0169] The start time of the third timer is any one of the following times: the time when the first wake-up signal is received; the time when the scheduling information is received; the time when the MR stops monitoring the PDCCH.

[0170] like Fig.10 As shown, the base station configures a long LP-WUS monitoring period for the UE. First, the UE monitors the LP-WUS by default from the start time of a long monitoring period, and starts timer 2 when the first LP-WUS is monitored. In the following two cases, the UE stops monitoring the LP-WUS for the remaining time period of this long monitoring period.

[0171] Case A: Explicit indication; for example, the base station notifies the UE to "suspend monitoring LP-WUS for 12 milliseconds", and the UE restarts monitoring LP-WUS after suspending monitoring for 12 milliseconds. Or the base station notifies the UE to "suspend monitoring LP-WUS from SFN = 010 to SFN = 020", then the UE suspends monitoring LP-WUS and restarts monitoring LP-WUS from SFN = 021. The specific notification can be MACCE or DCI, or it can be another type of signal received by LP-WUS, such as OOK.

[0172] Case B: Timer control: The base station configures the start condition of timer 3 (also called the second timer) for triggering the suspension of monitoring LP-WUS for the UE, as well as the start time of timer 3. In addition, the duration of timer 3 is also configured. When the UE determines that the start condition of timer 3 is met, timer 3 is started, and the monitoring of LP-WUS is suspended during the operation of timer 3. After timer 3 times out, the UE resumes monitoring LP-WUS. That is, in the time window where the time domain of the operation time of timer 2 and the operation time of timer 3 overlaps, the monitoring of LP-WUS is suspended.

[0173] In some possible embodiments, the condition for starting timer 3 may be one of the following options: a new timer 3* (also called the third timer) is defined, and when timer 3* times out, timer 3 is started. The start / restart condition of timer 3* is similar to that of the first timer; the start / restart timing of timer 3* is similar to that of the first timer, and will not be repeated here.

[0174] pass Fig.10 In the embodiment shown, the UE can stop monitoring the LP-WUS in the middle period and the tail period of a long monitoring cycle, so that the UE can reduce the duration of monitoring the LP-WUS and further reduce the power consumption of the UE. It should be understood that in a possible embodiment, the UE can also stop monitoring the LP-WUS only in the middle period of a long monitoring cycle, which will not be repeated here.

[0175] In the above Figures 8 to 10 In the illustrated embodiment, after the UE detects the LP-WUS, a dedicated timer is started, also known as a new timer (also known as drx-onDurationTimer). The time window of the new timer is called the onDuration window. During the operation of the new timer, the UE monitors the PDCCH.

[0176] In some embodiments, since the uplink and downlink data of a service (such as uplink resource scheduling or downlink data scheduling) usually appear in clusters, if the amount of data to be transmitted is too large, it may not be possible to transmit all of them during the operation of the dedicated timer for PDCCH monitoring. In this case, the first node still needs to continue monitoring the PDCCH until all the data to be transmitted is transmitted. For this reason, this embodiment introduces a new extended timer (EX-Timer).

[0177] In this embodiment, the function of the EX-Timer is similar to the inactive timer (Inactivetimer) of the DRX mechanism. When the dedicated timer for PDCCH detection times out, the UE starts the EX-Timer. During the operation of the EX-Timer, the UE continues to detect the PDCCH. When the EX-Timer times out and there is no other timer that enables the UE to detect the PDCCH, the UE no longer detects the PDCCH. In this embodiment, through the EX-Timer, the base station and the UE can extend the time window for detecting the PDCCH and transmit more data to be transmitted. Optionally, the EX-Timer can be restarted multiple times. Each time the UE receives scheduling information, it will start or restart the EX-Timer. In special cases, the UE can even keep detecting the PDCCH until the next onDuration window arrives.

[0178] In some embodiments, the value of EX-Timer is configured by the base station or specified by a protocol.

[0179] In some embodiments, for the same UE, one EX-Timer value or multiple EX-Timer values ​​may be used. The "using multiple EX-Timer values" mentioned here means configuring multiple values ​​at the same time, and using different values ​​in different situations. For example, the reception timing corresponding to each set of DRX configuration parameters corresponds to one EX-Timer value.

[0180] In some embodiments, when the value of EX-Timer is configured by the base station, the base station can directly configure the specific value of EX-Timer, or configure the coefficient k. After the UE obtains the k value, it considers "k×Inactive Timer value" as the value of EX-Timer.

[0181] In some embodiments, if the UE uses multiple EX-Timer values, the size of the specific EX-Timer used may be associated with at least one of the following factors:

[0182] Factor A: Scheduling direction indicated by DCI: uplink / downlink use different EX-Timer values.

[0183] Factor B: DCI type, that is, different DCI types such as DCI0-0, DCI0-1, DCI1-0, DCI1-1, etc. correspond to different EX-Timer values.

[0184] Factor C: Downlink data indicated by DCI: If DCI schedules downlink, the data of each different LCH in the data packet in the downlink transport block (TB) corresponds to different EX-Timer values. The UE can map different EX-Timer values ​​according to the LCH corresponding to the multiple MAC SDUs in the TB, and then select the longest / shortest EX-Timer value to use. In this case, the UE can determine the EX-Timer value only after parsing the TB, but the start time of the EX-Timer must be traced back to the time when the DCI is received.

[0185] For example, in Fig.11 In the example shown, there are three Media Access Control (Media Access Control) Service Data Units (SDUs) in the TB scheduled by the downlink DCI, which come from LCH1, LCH2, and LCH3, and the corresponding EX-Timer values ​​are 10ms, 15ms, and 8ms, respectively. The UE selects the largest EX-Timer length of 15ms as the EX-Timer value used this time. It is assumed that the PDCCH is monitored within 15ms from the moment of DCI reception.

[0186] In a possible embodiment, the time domain location of the DCI: different DCI time domains correspond to different EX-Timer values. The UE determines the EX-Timer value to be used according to the time domain where the received DCI is located.

[0187] In some possible embodiments, the frequency domain location of the DCI: different DCI frequency domains correspond to different EX-Timer values. The UE determines the EX-Timer value to be used according to the frequency domain where the received DCI is located.

[0188] In some other possible embodiments, the CCE aggregation level corresponding to the DCI: Different DCIs can use different CCE aggregation levels, such as level 2, level 4, level 8, level 16, etc. The higher the CCE aggregation level, the worse the channel quality, which means that it takes longer to transmit the same amount of data, so a longer EX-Timer value is required. The UE can obtain the EX-Timer values ​​corresponding to different CCE aggregation levels in advance, and after receiving the DCI, determine the EX-Timer value used this time according to the CCE aggregation level corresponding to the DCI.

[0189] It is to be noted that the operation mechanism of the above extended timer can be Figures 8 to 10 In another embodiment, the operation mechanism of the extended timer can also be implemented separately. Exemplarily, after receiving LP-WUS, the UE starts a dedicated timer for PDCCH monitoring; monitors PDCCH during the operation of the dedicated timer; when the scheduling information is monitored, at least one EX-Timer is started; after the dedicated timer is reached, the UE continues to monitor PDCCH during the operation of the at least one EX-Timer.

[0190] The embodiment of the present application further proposes another method for wireless communication to achieve mutual assistance between the DRX mechanism and the LP-WUS mechanism.

[0191] For ease of understanding, the following Fig.12 A method for wireless communication according to an embodiment of the present application is introduced. Fig.12 The description is made from the perspective of the first node. The possible device forms of the first node can be found in the above embodiments, which will not be described in detail here.

[0192] Fig.12 The method shown may include S1210 to S1230, and these steps are introduced below respectively.

[0193] In S1210, the first node determines a monitoring timing of a wake-up signal and configuration information of a non-continuous reception long and short cycle;

[0194] In S1220, the first node determines a corresponding PDCCH detection timing according to the type of the currently assigned non-continuous reception cycle;

[0195] In S1230, the first node monitors the wake-up signal within a monitoring opportunity of the wake-up signal associated with the corresponding PDCCH detection opportunity.

[0196] Exemplarily, the following description is given by taking the wake-up signal as LP-WUS and the discontinuous reception long and short cycle as the DRX cycle as an example.

[0197] In some possible embodiments, when the DRX short cycle timer (drx-ShortCycleTimer) times out, the current belonging DRX short cycle is determined; when the drx-ShortCycleTimer is started at least twice and does not time out, the current belonging DRX long cycle is determined.

[0198] In some possible embodiments, if the first node determines that it is currently in a DRX short cycle (short DRXcycle) state, it monitors within the LP-WUS monitoring opportunity corresponding to before the DRX on duration (OnDuration, i.e., PDCCH detection opportunity) that should be monitored in the DRX short cycle state; if the first node determines that it is currently in a DRX long cycle (Long DRX) state, it only monitors within the LP-WUS monitoring opportunity corresponding to before the OnDuration corresponding to the DRX long cycle state.

[0199] For example, Fig.13 For example, before each OnDuration opportunity, the UE's LP-WUS listening opportunity is configured. If the UE determines that it is currently in the short DRX cycle state, it listens to LP-WUS during the LP-WUS listening opportunities corresponding to OnDuration1, OnDuration2, OnDuration3, OnDuration4, and OnDuration5, that is, it listens to LP-WUS at all the dotted arrows in the figure; if the UE determines that it is currently in the long DRX cycle state, it listens to LP-WUS during the LP-WUS listening opportunities corresponding to OnDuration1 and OnDuration5, that is, Fig.13 LP-WUS is monitored at the dotted arrows before OnDuration1 and before OnDuration5.

[0200] In some other possible embodiments, the condition for the first node to start or restart the drx-ShortCycleTimer satisfies at least one of the following: A. the first node receives LP-WUS; B. data is received within OnDuration or uplink / downlink scheduling information is received, or data is received or uplink / downlink scheduling information is received in the discontinuous reception time window; C. data is received or uplink / downlink scheduling information is received within the inactive timer (Inactive timer), or data is received or uplink / downlink scheduling information is received in the discontinuous reception time extension window; D. MR stops monitoring PDCCH; E. The first node receives uplink / downlink scheduling information, and the inactive timer (Inactive timer) triggered by the uplink / downlink scheduling information times out or is notified to stop monitoring.

[0201] In some other possible embodiments, the moment when the first node starts or restarts the drx-ShortCycleTimer is any of the following moments: a. the moment when the first node receives LP-WUS; b. the moment when the first node receives uplink / downlink scheduling information; c. the moment when the first node stops MR monitoring PDCCH; d. the moment when the first node receives LP-WUS and stops MR monitoring PDCCH; e. the moment when the first node receives LP-WUS and receives scheduling information; f. the moment when the first node receives LP-WUS and uplink / downlink scheduling information, and the inactive timer (Inactive timer) triggered by the uplink / downlink scheduling times out or is notified to stop monitoring.

[0202] It should be understood that the condition for the UE to start the drx-ShortCycleTimer in the above example and the time when the drx-ShortCycleTimer is started may be related or may be set independently. The implementation mechanism of the drx-LongCycleTimer is similar to this, and this embodiment of the present application will not be repeated.

[0203] In some embodiments, when the first node receives the LP-WUS but fails to monitor the uplink and downlink scheduling during the subsequent OnDuration period or the time window of the dedicated timer, the first node may process according to at least one of the following configured behaviors:

[0204] Behavior A: The first node monitors PDCCH at a time interval T1 after the current OnDuration monitoring opportunity, and keeps monitoring PDCCH for a duration of T2. Specifically, the durations of T1 and T2 can be configured by the base station or specified by the protocol. For example, the UE unconditionally monitors PDCCH in the next OnDuration, regardless of whether the LP-WUS notification is received.

[0205] Behavior mode B: After the current OnDuration timer arrives, the first node continues to monitor the PDCCH for a duration of T3. Specifically, the duration of T3 can be configured by the base station or specified by the protocol. Exemplarily, the UE can start a timer with a duration of T3 when the OnDuration timer times out, and monitor the PDCCH while the timer is running. In another exemplary embodiment, when the OnDuration timer times out, the UE starts a timer Inactive timer, and monitors the PDCCH while the timer is running; in another example, after the OnDuration timer times out, the UE continues to monitor the PDCCH until the next LP-WUS monitoring opportunity, or the OnDuration corresponding to the next LP-WUS monitoring opportunity.

[0206] Behavior C: The first node initiates random access.

[0207] Behavior D: The first node counts. If the first node receives an LP-WUS notification again during the next LP-WUS listening opportunity, but does not receive an uplink / downlink scheduling, the counter continues to increase by 1. This is repeated. If the counter reaches the maximum value, the first node initiates random access. The maximum value of the counter is specified by the protocol or configured by the base station.

[0208] In another possible embodiment, when the first node does not receive the LP-WUS, but receives the DCI scheduling within the OnDuration time window corresponding to the LP-WUS, the first node reports the situation to the second node. Exemplarily, the UE reports via MAC CE or PUCCH to the base station. After receiving the report, the base station can modify the configuration of the LP-WUS for the UE. Specifically, the frequency domain configuration of the LP-WUS can be modified within the bandwidth (Band), or the Band where the LP-WUS is located can be modified.

[0209] Combination of the above Figures 1 to 13 , describes the method embodiment of the present application in detail, and the following is combined with Figures 14 to 17 , describes the device embodiment of the present application in detail. It should be understood that the description of the method embodiment corresponds to the description of the device embodiment, so the parts not described in detail can refer to the previous method embodiment.

[0210] Fig.14 A first node for wireless communication provided in an embodiment of the present application. The first node may be a terminal device or a network device. Fig.14 As shown, the first node 1400 includes a first processing module 1410 and a first transceiver module 1420 .

[0211] The first processing module 1410 is used to determine a monitoring timing of a wake-up signal;

[0212] The first transceiver module 1420 is configured to receive a first wake-up signal and start a first timer at a first moment;

[0213] The first processing module 1410 is configured to monitor a subsequent wake-up signal within a time window in which the monitoring opportunity and the running time of the first timer overlap in time domain.

[0214] In some possible embodiments, the first transceiver module 1420 is further used to: receive first information, where the first information is used to indicate a monitoring timing for the wake-up signal.

[0215] In some possible embodiments, the first information includes at least one of the following information: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal.

[0216] In some possible embodiments, the first processing module 1410 is further configured to: after the first timer times out, monitor a subsequent wake-up signal within a monitoring opportunity corresponding to a long monitoring period of the wake-up signal.

[0217] In some possible embodiments, the triggering condition for starting the first timer also includes at least one of the following: receiving scheduling information within a set time after monitoring the first wake-up signal; receiving scheduling information within a period of time after the end of the monitoring opportunity corresponding to the first wake-up signal.

[0218] In some possible embodiments, the first moment is any of the following moments:

[0219] The moment when the first wake-up signal is received;

[0220] The time when the scheduling information is received;

[0221] The time when the MR stops monitoring the PDCCH.

[0222] In some possible embodiments, the first transceiver module 1420 is further used to: receive second information, where the second information is used to indicate not to monitor the wake-up signal before the next long monitoring period of the wake-up signal arrives.

[0223] In some possible embodiments, the first transceiver module 1420 is also used to: during the operation of the first timer, monitor the wake-up signal according to the monitoring timing corresponding to the short monitoring period; or, during the operation of the first timer, monitor the wake-up signal according to the monitoring timing corresponding to the long monitoring period.

[0224] In some possible embodiments, the first transceiver module 1420 is further used to: receive a stop monitoring notification of the wake-up signal at the second moment, wherein the stop monitoring notification is used to instruct to stop monitoring the wake-up signal during the remaining running time period of the first timer after the second moment.

[0225] In some possible embodiments, the first transceiver module 1420 is further used to: receive a notification of suspending monitoring of the wake-up signal at a third moment, where the notification of suspending monitoring is used to indicate suspending monitoring of the wake-up signal during a set time period after the second moment.

[0226] In some possible embodiments, the first processing module 1410 is also used to: pause monitoring the wake-up signal in a time window where the running time of the first timer and the running time of the second timer overlap in time domain; wherein the duration of the second timer is shorter than the duration of the first timer.

[0227] In some possible embodiments, the expiration of the third timer triggers the start of the second timer, wherein: the triggering conditions of the third timer include: receiving scheduling information within a first set time period when the first wake-up signal is monitored; receiving scheduling information within a second set time period after the end of the monitoring opportunity corresponding to the first wake-up signal; stopping MR monitoring PDCCH; the start time of the third timer is any of the following times: the moment when the first wake-up signal is received; the moment when the scheduling information is received; the moment when MR monitoring PDCCH is stopped.

[0228] In some possible embodiments, the first processing module 1410 is further configured to: start a dedicated timer after receiving the first wake-up signal; and perform PDCCH monitoring during the operation of the dedicated timer.

[0229] In some possible embodiments, the first processing module 1410 is further used to: start at least one extended timer when scheduling information is monitored; and perform PDCCH monitoring during the operation of the at least one extended timer after the dedicated timer arrives.

[0230] In some possible embodiments, the value of the extended timer is related to at least one of the following:

[0231] The scheduling direction indicated by the downlink control information;

[0232] Type of downlink control information;

[0233] Downlink data indicated by the downlink control information;

[0234] The time domain location of the downlink control information;

[0235] The frequency domain location of the downlink control information;

[0236] The control channel element (CCE) aggregation level corresponding to the downlink control information.

[0237] As an embodiment, the first processing module 1410 may be a processor 1610. The first node 1400 may also include a memory 1620 and a transceiver 1630. Fig.16 shown.

[0238] Fig.15A second node for wireless communication provided in an embodiment of the present application. The second node may be a device or entity used for positioning on the network side, such as LMF. Fig.15 As shown, the second node 1500 includes a second processing module 1510 and a second transceiver module 1520 .

[0239] The second processing module 1510 is further used to determine a monitoring timing of a wake-up signal;

[0240] The second transceiver module 1520 is also used to send a first wake-up signal; the first wake-up signal is used to trigger the first node to start a first timer at a first moment; and to monitor subsequent wake-up signals within a time window in which the running time of the first timer overlaps with the monitoring opportunity in the time domain.

[0241] In some possible embodiments, the second transceiver module 1520 is further used to: send first information, where the first information is used to indicate a monitoring timing for the wake-up signal.

[0242] In some possible embodiments, the first information includes at least one of the following information: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal.

[0243] In some possible embodiments, the second transceiver module 1520 is further used to: send second information, where the second information is used to instruct the first node not to monitor the wake-up signal before the next long monitoring period of the wake-up signal arrives.

[0244] In some possible embodiments, the second transceiver module 1520 is further used to: receive and send a stop monitoring notification of the wake-up signal at the second moment, wherein the stop monitoring notification is used to instruct to stop monitoring the wake-up signal during the remaining running time period of the first timer after the second moment.

[0245] In some possible embodiments, the second transceiver module 1520 is further used to: send a notification of suspending monitoring of the wake-up signal at a third moment, where the notification of suspending monitoring is used to indicate suspending monitoring of the wake-up signal during a set time period after the second moment.

[0246] As an embodiment, the second processing module 1510 may be a processor 1610. The second node 1500 may further include a memory 1620 and a transceiver 1630. Fig.16 shown.

[0247] Fig.16 It is a schematic structural diagram of a communication device according to an embodiment of the present application. Fig.16The dotted line in the figure indicates that the unit or module is optional. The device 1600 can be used to implement the method described in the above method embodiment. The device 1600 can be a chip, a user equipment or a network device.

[0248] The device 1600 may include one or more processors 1610. The processor 1610 may support the device 1600 to implement the method described in the method embodiment above. The processor 1610 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may also be other general-purpose processors, digital signal processors (DSP), application specific integrated circuits (ASIC), field programmable gate arrays (FPGA) or other programmable logic devices, discrete gates or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, etc.

[0249] The apparatus 1600 may further include one or more memories 1620. The memory 1620 stores a program, which can be executed by the processor 1610, so that the processor 1610 executes the method described in the above method embodiment. The memory 1620 may be independent of the processor 1610 or integrated in the processor 1610.

[0250] The apparatus 1600 may further include a transceiver 1630. The processor 1610 may communicate with other devices or chips through the transceiver 1630. For example, the processor 1610 may transmit and receive data with other devices or chips through the transceiver 1630.

[0251] Fig.17 The hardware module diagram of the communication device provided in the embodiment of the present application. Specifically, Fig.17 A block diagram is shown of a first communication device 1750 and a second communication device 1710 communicating with each other in an access network.

[0252] The first communication device 1750 includes a controller / processor 1759, a memory 1760, a data source 1767, a transmit processor 1768, a receive processor 1756, a multi-antenna transmit processor 1757, a multi-antenna receive processor 1758, a transmitter / receiver 1754 and an antenna 1752.

[0253] The second communication device 1710 includes a controller / processor 1775, a memory 1776, a data source 1777, a receive processor 1770, a transmit processor 1716, a multi-antenna receive processor 1772, a multi-antenna transmit processor 1771, a transmitter / receiver 1718 and an antenna 1720.

[0254] In the transmission from the second communication device 1710 to the first communication device 1750, at the second communication device 1710, the upper layer data packet from the core network or the upper layer data packet from the data source 1777 is provided to the controller / processor 1775. The core network and the data source 1777 represent all the protocol layers above the L2 layer. The controller / processor 1775 implements the functionality of the L2 layer. In the transmission from the second communication device 1710 to the first communication device 1750, the controller / processor 1775 provides header compression, encryption, packet segmentation and reordering, multiplexing between logical and transport channels, and allocation of radio resources to the first communication device 1750 based on various priority metrics. The controller / processor 1775 is also responsible for the retransmission of lost packets and signaling to the first communication device 1750. The transmit processor 1716 and the multi-antenna transmit processor 1771 implement various signal processing functions for the L1 layer (i.e., the physical layer). The transmit processor 1716 implements coding and interleaving to facilitate forward error correction at the second communication device 1710, as well as mapping of signal constellations based on various modulation schemes (e.g., binary phase shift keying, quadrature phase shift keying, M phase shift keying, M quadrature amplitude modulation). The multi-antenna transmit processor 1771 performs digital spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing on the coded and modulated symbols to generate one or more spatial streams. The transmit processor 1716 then maps each spatial stream to a subcarrier, multiplexes with a reference signal (e.g., a pilot) in the time domain and / or frequency domain, and then uses an inverse fast Fourier transform to generate a physical channel carrying a time domain multi-carrier symbol stream. The multi-antenna transmit processor 1771 then performs a transmit analog precoding / beamforming operation on the time domain multi-carrier symbol stream. Each transmitter 1718 converts the baseband multi-carrier symbol stream provided by the multi-antenna transmit processor 1771 into a radio frequency stream, and then provides it to a different antenna 1720.

[0255] In the transmission from the second communication device 1710 to the first communication device 1750, at the first communication device 1750, each receiver 1754 receives a signal through its corresponding antenna 1752. Each receiver 1754 recovers the information modulated onto the RF carrier and converts the RF stream into a baseband multi-carrier symbol stream and provides it to the receiving processor 1756. The receiving processor 1756 and the multi-antenna receiving processor 1758 implement various signal processing functions of the L1 layer. The multi-antenna receiving processor 1758 performs a receiving analog precoding / beamforming operation on the baseband multi-carrier symbol stream from the receiver 1754. The receiving processor 1756 uses a fast Fourier transform to convert the baseband multi-carrier symbol stream after the receiving analog precoding / beamforming operation from the time domain to the frequency domain. In the frequency domain, the physical layer data signal and the reference signal are demultiplexed by the receiving processor 1756, wherein the reference signal will be used for channel estimation, and the data signal is recovered after multi-antenna detection in the multi-antenna receiving processor 1758 to any spatial stream with the first communication device 1750 as the destination. The symbols on each spatial stream are demodulated and recovered in the receiving processor 1756, and soft decisions are generated. The receiving processor 1756 then decodes and deinterleaves the soft decisions to recover the upper layer data and control signals transmitted by the second communication device 1710 on the physical channel. The upper layer data and control signals are then provided to the controller / processor 1759. The controller / processor 1759 implements the functions of the L2 layer. The controller / processor 1759 may be associated with a memory 1760 that stores program codes and data. The memory 1760 may be referred to as a computer-readable medium. In the transmission from the second communication device 1710 to the first communication device 1750, the controller / processor 1759 provides multiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover the upper layer data packets from the second communication device 1710. The upper layer data packets are then provided to all protocol layers above the L2 layer. Various control signals may also be provided to the L3 for L3 processing.

[0256] In the transmission from the first communication device 1750 to the second communication device 1710, at the first communication device 1750, the upper layer data packets are provided to the controller / processor 1759 using the data source 1767. The data source 1767 represents all the protocol layers above the L2 layer. Similar to the transmission function at the second communication device 1710 described in the transmission from the second communication device 1710 to the first communication device 1750, the controller / processor 1759 implements header compression, encryption, packet segmentation and reordering, and multiplexing between logical and transport channels, and implements L2 layer functions for user plane and control plane. The controller / processor 1759 is also responsible for the retransmission of lost packets and signaling to the second communication device 1710. The transmit processor 1768 performs modulation mapping and channel coding processing, and the multi-antenna transmit processor 1757 performs digital multi-antenna spatial precoding, including codebook-based precoding and non-codebook-based precoding, and beamforming processing. Then, the transmit processor 1768 modulates the generated spatial stream into a multi-carrier / single-carrier symbol stream, which is then provided to different antennas 1752 via the transmitter 1754 after analog precoding / beamforming operations in the multi-antenna transmit processor 1757. Each transmitter 1754 first converts the baseband symbol stream provided by the multi-antenna transmit processor 1757 into a radio frequency symbol stream, and then provides it to the antenna 1752.

[0257] In the transmission from the first communication device 1750 to the second communication device 1710, the function at the second communication device 1710 is similar to the reception function at the first communication device 1750 described in the transmission from the second communication device 1710 to the first communication device 1750. Each receiver 1718 receives a radio frequency signal through its corresponding antenna 1720, converts the received radio frequency signal into a baseband signal, and provides the baseband signal to the multi-antenna reception processor 1772 and the reception processor 1770. The reception processor 1770 and the multi-antenna reception processor 1772 jointly implement the functions of the L1 layer. The controller / processor 1775 implements the L2 layer functions. The controller / processor 1775 can be associated with a memory 1776 that stores program codes and data. The memory 1776 can be referred to as a computer-readable medium. In transmission from the first communication device 1750 to the second communication device 1710, the controller / processor 1775 provides demultiplexing between transport and logical channels, packet reassembly, decryption, header decompression, and control signal processing to recover upper layer data packets from the first communication device 1750. The upper layer data packets from the controller / processor 1775 can be provided to the core network or all protocol layers above the L2 layer, and various control signals can also be provided to the core network or L3 for L3 processing.

[0258] As an embodiment, the first communication device 1750 comprises: at least one processor and at least one memory, wherein the at least one memory comprises computer program code; the at least one memory and the computer program code are configured to be used together with the at least one processor.

[0259] As an embodiment, the first communication device 1750 apparatus includes: a memory storing a computer-readable instruction program, wherein the computer-readable instruction program generates an action when executed by at least one processor.

[0260] As an embodiment, the first communication device 1750 corresponds to the first node in this application.

[0261] As an embodiment, the second communication device 1710 corresponds to the second node in this application.

[0262] As an embodiment, the first communication device 1750 is a user equipment, and the user equipment can serve as a relay node.

[0263] As an embodiment, the first communication device 1750 is a network controlled relay (NCR).

[0264] As an embodiment, the first communication device 1750 is a relay wireless repeater.

[0265] As an embodiment, the first communication device 1750 is a relay.

[0266] As an embodiment, the second communication device 1710 is a location management function (LMF).

[0267] As an embodiment, the first communication device 1750 corresponds to the first node in the present application, and the controller / processor 1159 is used to execute the above method.

[0268] The embodiment of the present application also provides a computer-readable storage medium for storing a program. The computer-readable storage medium can be applied to a terminal or network device provided in the embodiment of the present application, and the program enables a computer to execute the method performed by the terminal device, network device or core network entity in each embodiment of the present application.

[0269] The embodiment of the present application also provides a computer program product. The computer program product includes a program. The computer program product can be applied to the terminal or network device provided in the embodiment of the present application, and the program enables the computer to execute the method performed by the terminal device, network device or core network entity in each embodiment of the present application.

[0270] The present application also provides a computer program. The computer program can be applied to the terminal or network device provided in the present application, and the computer program enables the computer to execute the method performed by the terminal device, network device or core network entity in each embodiment of the present application.

[0271] It should be understood that the terms "system" and "network" in this application can be used interchangeably. In addition, the terms used in this application are only used to explain the specific embodiments of the present application, and are not intended to limit the present application. The terms "first", "second", "third" and "fourth" in the specification and claims of this application and the accompanying drawings are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions.

[0272] In the embodiments of the present application, the "indication" mentioned can be a direct indication, an indirect indication, or an indication of an association relationship. For example, A indicates B, which 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 relationship between A and B.

[0273] In the embodiment of the present application, "B corresponding to A" means that B is associated with A, and B can be determined according to A. However, it should be understood that determining B according to A does not mean determining B only according to A, and B can also be determined according to A and / or other information.

[0274] In the embodiments of the present application, the term "corresponding" may indicate that there is a direct or indirect correspondence between the two, or an association relationship between the two, or a relationship of indication and being indicated, configuration and being configured, etc.

[0275] In the embodiments of the present application, "pre-definition" or "pre-configuration" can be implemented by pre-saving corresponding codes, tables or other methods that can be used to indicate relevant information in a device (for example, including a user device and a network device), and the present application does not limit the specific implementation method. For example, pre-definition can refer to what is defined in the protocol.

[0276] In the embodiments of the present application, the “protocol” may refer to a standard protocol in the communication field, for example, it may include an LTE protocol, an NR protocol, and related protocols used in future communication systems, and the present application does not limit this.

[0277] In the embodiments of the present application, the term "and / or" is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0278] In 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.

[0279] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0280] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0281] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0282] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the process or function described in the embodiment of the present application is generated in whole or in part. The computer may be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions may be stored in a computer-readable storage medium, or transmitted from one computer-readable storage medium to another computer-readable storage medium, for example, the computer instructions may be transmitted from a website site, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode to another website site, computer, server or data center. The computer-readable storage medium may be any available medium that can be read by a computer or a data storage device such as a server or data center that includes one or more available media integrated. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital video disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0283] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art who is familiar with the present technical field can easily think of changes or substitutions within the technical scope disclosed in the present application, which should be included in the protection scope of the present application. Therefore, the protection scope of the present application should be based on the protection scope of the claims.

Claims

1. A method in a first node for wireless communication, characterized in that include: Determine the listening time for the wake-up signal; When a first wake-up signal is received, starting a first timer at a first moment; The wake-up signal is monitored within a time window in which the monitoring opportunity and the running time of the first timer overlap in time domain.

2. The method according to claim 1, characterized in that: Also includes: First information is received, where the first information is used to indicate a monitoring timing of the wake-up signal.

3. The method according to claim 1, characterized in that The method of monitoring a wake-up signal within a time window in which the monitoring opportunity and the running time of the first timer overlap in time domain includes: During the operation of the first timer, monitoring the wake-up signal according to the monitoring timing corresponding to the short monitoring period; or, During the operation of the first timer, the wake-up signal is monitored according to the monitoring timing corresponding to the long monitoring period.

4. The method according to claim 2, characterized in that: The first information includes at least one of the following information: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal.

5. The method according to any one of claims 1 to 4, characterized in that: Also includes: After the first timer times out, a subsequent wake-up signal is monitored within a monitoring opportunity corresponding to the long monitoring period of the wake-up signal.

6. The method according to any one of claims 1 to 5, characterized in that: The triggering condition for starting the first timer also includes at least one of the following: Receiving scheduling information within a set time after monitoring the first wake-up signal; The scheduling information is received within a period of time after the end time of the monitoring opportunity corresponding to the first wake-up signal.

7. The method according to any one of claims 1 to 4, characterized in that: The first moment is any of the following moments: The moment when the first wake-up signal is received; The time when the scheduling information is received; The time when the MR stops monitoring the PDCCH.

8. The method according to any one of claims 1 to 7, characterized in that: Also includes: Second information is received, where the second information is used to indicate not to monitor the wake-up signal before the next long monitoring period of the wake-up signal arrives.

9. The method according to any one of claims 1 to 7, characterized in that: Also includes: A notification of stopping monitoring of the wake-up signal is received at the second moment, where the notification of stopping monitoring is used to instruct to stop monitoring the wake-up signal during the remaining running time period of the first timer after the second moment.

10. The method according to any one of claims 1 to 7, characterized in that: Also includes: A notification of suspending monitoring of the wake-up signal is received at a third moment, where the notification of suspending monitoring is used to indicate suspending monitoring of the wake-up signal for a set time period after the second moment.

11. The method according to any one of claims 1 to 7, characterized in that: Also includes: During a time window in which the running time of the first timer and the running time of the second timer overlap in time domain, suspending monitoring of the wake-up signal; The duration of the second timer is shorter than the duration of the first timer.

12. The method according to claim 11, characterized in that The third timer times out and triggers the start of the second timer, wherein: The triggering condition of the third timer includes: Receiving scheduling information within a first set time period of monitoring the first wake-up signal; Receiving scheduling information within a second set time period after the end time of the monitoring opportunity corresponding to the first wake-up signal; Stop MR from monitoring PDCCH; The start time of the third timer is any of the following times: The moment when the first wake-up signal is received; The time when the scheduling information is received; The time when the MR stops monitoring the PDCCH.

13. The method according to any one of claims 1 to 11, characterized in that Also includes: starting a dedicated timer after receiving the first wake-up signal; During the running of the dedicated timer, PDCCH monitoring is performed.

14. The method according to claim 13, characterized in that Also includes: When the scheduling information is monitored, at least one extended timer is started; After the dedicated timer expires, PDCCH monitoring is performed during the running of the at least one extended timer.

15. The method according to claim 14, characterized in that The value of the extended timer is related to at least one of the following: The scheduling direction indicated by the downlink control information; Type of downlink control information; Downlink data indicated by the downlink control information; The time domain location of the downlink control information; The frequency domain location of the downlink control information; The control channel element CCE aggregation level corresponding to the downlink control information.

16. A method in a second node for wireless communication, characterized in that: include: Determine the listening time for the wake-up signal; Sending a first wake-up signal; the first wake-up signal is used to trigger the first node to start a first timer at a first moment; And within a time window in which the running time of the first timer overlaps with the monitoring opportunity, monitoring a subsequent wake-up signal.

17. The method according to claim 16, characterized in that Also includes: Sending first information, where the first information is used to indicate a monitoring timing of the wake-up signal.

18. The method according to claim 17, characterized in that The first information includes at least one of the following information: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal.

19. The method according to any one of claims 16 to 18, characterized in that After the first timer times out, the method further includes: The second information is sent, where the second information is used to instruct the first node not to monitor the wake-up signal before the next long monitoring period of the wake-up signal arrives.

20. The method according to any one of claims 16 to 18, characterized in that Also includes: A notification of stopping monitoring of the wake-up signal is sent at the second moment, where the notification of stopping monitoring is used to instruct to stop monitoring the wake-up signal during the first time period after the second moment.

21. The method according to any one of claims 16 to 18, characterized in that Also includes: A notification of suspending monitoring of the wake-up signal is sent at a third moment, where the notification of suspending monitoring is used to indicate that monitoring of the wake-up signal is suspended for a set period of time after the second moment.

22. A first node for wireless communication, characterized in that: It includes a first processing module and a first transceiver module; The first processing module is used to determine a monitoring timing of a wake-up signal; The first transceiver module is configured to receive a first wake-up signal and start a first timer at a first moment; The first processing module is configured to monitor a subsequent wake-up signal within a time window in which the monitoring opportunity and the running time of the first timer overlap in time domain.

23. The first node according to claim 22, characterized in that The first transceiver module is further used for: First information is received, where the first information is used to indicate a monitoring timing of the wake-up signal.

24. The first node according to claim 23, characterized in that The first information includes at least one of the following information: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal.

25. The first node according to any one of claims 22 to 24, characterized in that: The first processing module is further used for: After the first timer times out, a subsequent wake-up signal is monitored within a monitoring opportunity corresponding to the long monitoring period of the wake-up signal.

26. The first node according to any one of claims 22 to 25, characterized in that: The triggering condition for starting the first timer also includes at least one of the following: Receiving scheduling information within a set time after monitoring the first wake-up signal; The scheduling information is received within a period of time after the end time of the monitoring opportunity corresponding to the first wake-up signal.

27. The first node according to any one of claims 22 to 24, characterized in that: The first moment is any of the following moments: The moment when the first wake-up signal is received; The time when the scheduling information is received; The time when the MR stops monitoring the PDCCH.

28. The first node according to any one of claims 22 to 27, characterized in that: The first transceiver module is further used for: Second information is received, where the second information is used to indicate not to monitor the wake-up signal before the next long monitoring period of the wake-up signal arrives.

29. The first node according to any one of claims 22 to 27, characterized in that: The first transceiver module is further used for: A notification of stopping monitoring of the wake-up signal is received at the second moment, where the notification of stopping monitoring is used to instruct to stop monitoring the wake-up signal during the remaining running time period of the first timer after the second moment.

30. The first node according to any one of claims 22 to 27, characterized in that: The first transceiver module is further used for: A notification of suspending monitoring of the wake-up signal is received at a third moment, where the notification of suspending monitoring is used to indicate suspending monitoring of the wake-up signal for a set time period after the second moment.

31. The first node according to any one of claims 22 to 27, characterized in that: The first processing module is further used for: During a time window in which the running time of the first timer and the running time of the second timer overlap in time domain, suspending monitoring of the wake-up signal; The duration of the second timer is shorter than the duration of the first timer.

32. The first node according to claim 31, characterized in that The third timer times out and triggers the start of the second timer, wherein: The triggering condition of the third timer includes: Receiving scheduling information within a first set time period of monitoring the first wake-up signal; Receiving scheduling information within a second set time period after the end time of the monitoring opportunity corresponding to the first wake-up signal; Stop MR from monitoring PDCCH; The start time of the third timer is any of the following times: The moment when the first wake-up signal is received; The time when the scheduling information is received; The time when the MR stops monitoring the PDCCH.

33. The first node according to any one of claims 22 to 31, characterized in that: The first processing module is further used for: starting a dedicated timer after receiving the first wake-up signal; During the running of the dedicated timer, PDCCH monitoring is performed.

34. The first node according to claim 33, characterized in that The first processing module is further used for: When the scheduling information is monitored, at least one extended timer is started; After the dedicated timer expires, PDCCH monitoring is performed during the running of the at least one extended timer.

35. The first node according to claim 34, characterized in that The value of the extended timer is related to at least one of the following: The scheduling direction indicated by the downlink control information; Type of downlink control information; Downlink data indicated by the downlink control information; The time domain location of the downlink control information; The frequency domain location of the downlink control information; The control channel element CCE aggregation level corresponding to the downlink control information.

36. A second node for wireless communication, characterized in that: It includes a second transceiver module and a second processing module: The second processing module is further used to determine a monitoring timing of the wake-up signal; The second transceiver module is also used to send a first wake-up signal; the first wake-up signal is used to trigger the first node to start a first timer at a first moment; and to monitor subsequent wake-up signals within a time window in which the running time of the first timer overlaps with the monitoring opportunity in time domain.

37. The second node according to claim 36, characterized in that: The second transceiver module is also used for: Sending first information, where the first information is used to indicate a monitoring timing of the wake-up signal.

38. The second node according to claim 37, characterized in that: The first information includes at least one of the following information: a long monitoring period of the wake-up signal, a short monitoring period of the wake-up signal, a time offset of the wake-up signal, or a continuous monitoring duration of the wake-up signal.

39. The second node according to any one of claims 36 to 38, characterized in that: The second transceiver module is also used for: The second information is sent, where the second information is used to instruct the first node not to monitor the wake-up signal before the next long monitoring period of the wake-up signal arrives.

40. The second node according to any one of claims 36 to 38, characterized in that: The second transceiver module is also used for: A stop monitoring notification of the wake-up signal is sent at the second moment, where the stop monitoring notification is used to instruct to stop monitoring the wake-up signal during the remaining running time period of the first timer after the second moment.

41. The second node according to any one of claims 36 to 38, characterized in that: The second transceiver module is also used for: A notification of suspending monitoring of the wake-up signal is sent at a third moment, where the notification of suspending monitoring is used to indicate that monitoring of the wake-up signal is suspended for a set period of time after the second moment.

42. A node used for wireless communication, characterized in that: It includes a transceiver, a memory and a processor, wherein the memory is used to store programs, and the processor is used to call the programs in the memory and control the transceiver to receive or send signals so that the node executes the method as described in any one of claims 1-15 or 16-21.

43. A communication device, characterized in that: It comprises a processor, which is used to call a program from a memory so that the device executes the method as described in any one of claims 1-15 or 16-21.

44. A chip, characterized in that: It comprises a processor, which is used to call a program from a memory, so that a device equipped with the chip executes the method as described in any one of claims 1-15 or 16-20.

45. A computer-readable storage medium, characterized in that A program is stored thereon, the program causing a computer to execute the method according to any one of claims 1-15 or 16-21.

46. ​​A computer program product, characterized in that The method comprises a program which causes a computer to execute the method as claimed in any one of claims 1 to 15 or 16 to 21.

47. A computer program, characterized in that The computer program causes a computer to execute the method according to any one of claims 1-15 or 16-21.

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