Communication method and communication apparatus
Patent Information
- Application Number
- PCT/CN2025/079556
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-03-04
- Filing Date
- 2025-02-27
- Publication Date
- 2025-10-02
AI Technical Summary
How to further reduce the overhead of network resources after the introduction of wake-up radio (WUR), especially in the communication process between terminal devices and network devices.
Design at least two sets of monitoring time, adjust the monitoring time of the wake-up signal according to the type or receiving mode of the terminal device, and match the indication information and capability information to optimize the sending and receiving of the wake-up signal.
By matching monitoring time, network resource overhead is reduced, the average delay between the wake-up signal and the paging opportunity is reduced, and the user experience is improved.
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Figure CN2025079556_02102025_PF_FP_ABST
Abstract
Description
Communication method and communication device
[0001] This application claims priority to the Chinese patent application with application number 202410243611.2 filed with the State Intellectual Property Office of China on March 4, 2024, and priority to the Chinese patent application with the invention name “Communication Method and Communication Device”, all contents of which are incorporated by reference into this application. Technical Field
[0002] The present application relates to the field of wireless communications, and more particularly, to a communication method and a communication device. Background Art
[0003] The terminal device can receive a wake-up signal through a separate, low-power circuit, such as a wake-up radio (WUR), while the main receiver can be in a sleep state. When the terminal device detects the wake-up signal through the WUR, it triggers the main receiver to wake up. After the main receiver wakes up, the terminal device can receive data, etc. through the main receiver. When the WUR is introduced, how to further reduce network resource overhead is a question worth considering. Summary of the Invention
[0004] The present application provides a communication method and a communication device, which can reduce network resource overhead.
[0005] On the first aspect, a communication method is provided, which is applied to the terminal device side, that is, the method can be executed by the terminal device or by a component of the terminal device (such as a chip or a chip system or a circuit), and this application does not limit this.
[0006] The method may include: determining a monitoring time, which belongs to a monitoring time in at least two groups of monitoring times, the at least two groups of monitoring times including a first group of monitoring times and a second group of monitoring times, the first group of monitoring times including M1 first monitoring times, the second group of monitoring times including M2 second monitoring times, the types of terminal devices corresponding to the first group of monitoring times and the second group of monitoring times are different, or the receiving modes corresponding to the first group of monitoring times and the second group of monitoring times are different, M1 and M2 are integers greater than 1 or equal to 1; within the monitoring time, monitoring the wake-up signal.
[0007] Based on the above technical solution, at least two groups of monitoring times are designed, and different groups of monitoring times correspond to different types of terminal devices, or different groups of monitoring times correspond to different receiving modes. This can match the monitoring time with the type of terminal device, or the monitoring time with the receiving mode of the terminal device, thereby reducing resource overhead. For example, compared to the transmission time of the wake-up signal within the monitoring time corresponding to the OOK receiver, the transmission time of the wake-up signal can be shortened within the monitoring time corresponding to the OFDM receiver, which can reduce network resource overhead.
[0008] On the second aspect, a communication method is provided, which is applied to the terminal device side, that is, the method can be executed by the terminal device or by a component of the terminal device (such as a chip or a chip system or a circuit), and this application does not limit this.
[0009] The method may include: determining a monitoring time, the monitoring time belonging to a group of monitoring times of at least two groups of monitoring times, the group of monitoring times being related to the type or receiving mode of the terminal device; and monitoring the wake-up signal during the monitoring time.
[0010] In combination with the second aspect, in certain implementations of the second aspect, the group of monitoring times is a first group of monitoring times, and the at least two groups of monitoring times also include a second group of monitoring times, or the group of monitoring times is a second group of monitoring times, and the at least two groups of monitoring times also include a first group of monitoring times, the first group of monitoring times includes M1 first monitoring times, and the second group of monitoring times includes M2 second monitoring times. The types of terminal devices corresponding to the first group of monitoring times and the second group of monitoring times are different, or the receiving modes corresponding to the first group of monitoring times and the second group of monitoring times are different, and M1 and M2 are integers greater than 1 or equal to 1.
[0011] In combination with the first aspect or the second aspect, in some implementations, the method further includes: receiving indication information, where the indication information indicates the value of M1 and / or M2.
[0012] In combination with the first aspect or the second aspect, in some implementations, before monitoring the wake-up signal, the method further includes: sending capability information, where the capability information indicates the type or receiving mode of the terminal device.
[0013] Based on the above technical solution, the capability information indicates the terminal device type or reception mode. This allows the network device to determine the terminal device's monitoring time based on the terminal device type or reception mode, and then send the terminal device's wake-up signal within the terminal device's monitoring time. This ensures that the network device and the terminal device are consistent in sending and monitoring wake-up signals.
[0014] On the third aspect, a communication method is provided, which can be applied to the network device side, that is, the method can be executed by the network device or by a component of the network device (such as a chip or a chip system or a circuit), which is not limited in this application.
[0015] The method may include: determining a monitoring time, which belongs to a monitoring time in at least two groups of monitoring times, the at least two groups of monitoring times including a first group of monitoring times and a second group of monitoring times, the first group of monitoring times including M1 first monitoring times, the second group of monitoring times including M2 second monitoring times, the types of terminal devices corresponding to the first group of monitoring times and the second group of monitoring times are different, or the receiving modes corresponding to the first group of monitoring times and the second group of monitoring times are different, M1 and M2 are integers greater than 1 or equal to 1; within the monitoring time, sending a wake-up signal.
[0016] In the fourth aspect, a communication method is provided, which can be applied to the network device side, that is, the method can be executed by the network device or by a component of the network device (such as a chip or a chip system or a circuit), and this application does not limit this.
[0017] The method may include: determining a monitoring time, which belongs to a set of monitoring times in at least two groups of monitoring times, and the set of monitoring times is related to the type or receiving mode of the terminal device; and sending a wake-up signal during the monitoring time.
[0018] In combination with the fourth aspect, in certain implementations of the fourth aspect, the group of monitoring times is a first group of monitoring times, and the at least two groups of monitoring times also include a second group of monitoring times, or the group of monitoring times is a second group of monitoring times, and the at least two groups of monitoring times also include a first group of monitoring times, the first group of monitoring times includes M1 first monitoring times, and the second group of monitoring times includes M2 second monitoring times. The types of terminal devices corresponding to the first group of monitoring times and the second group of monitoring times are different, or the receiving modes corresponding to the first group of monitoring times and the second group of monitoring times are different, and M1 and M2 are integers greater than 1 or equal to 1.
[0019] In combination with the third aspect or the fourth aspect, in some implementations, the method further includes: sending indication information, where the indication information indicates the value of M1 and / or M2.
[0020] In combination with the third aspect or the fourth aspect, in some implementations, before sending the wake-up signal, the method further includes: receiving capability information, where the capability information indicates the type or receiving mode of the terminal device.
[0021] In combination with any one of the first to fourth aspects, in certain implementations, the starting position of the monitoring time in the time domain is related to at least one of the following: an identifier of the terminal device, an index of the monitoring time, M1, and M2.
[0022] In combination with any aspect of the first to fourth aspects, in certain implementations, within a monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times; there is no second monitoring time between the M1 first monitoring times, and / or, there is no first monitoring time between the M2 second monitoring times.
[0023] Based on the above technical solution, different groups of monitoring times can be centrally distributed. For example, if the first and second groups of monitoring times correspond to different types of terminal devices, the monitoring times corresponding to different types of terminal devices can be concentrated at different times. This not only allows the monitoring time to be matched to the terminal device, but also allows the appropriate length of monitoring time to be configured based on the terminal device type, minimizing the resource overhead of network devices. It also allows a certain type of terminal device to monitor the wake-up signal at a centralized location for a period of time, making it simple and easy to implement.
[0024] In combination with any aspect of the first to fourth aspects, in certain implementations, within a monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times; the starting position of the first monitoring time in the time domain satisfies: (N1+offset)mod T=L1*N3; and / or, the starting position of the second monitoring time in the time domain satisfies: (N2+offset+M1*L1)mod T=L2*N4; wherein, N1 represents the index of the starting position of the first monitoring time in the time domain, N3 represents the index of the first monitoring time, N2 represents the index of the starting position of the second monitoring time in the time domain, N4 represents the index of the second monitoring time, offset is a number greater than 0 or equal to 0, T is the monitoring cycle, L1 is the time length of the first monitoring time, L2 is the time length of the second monitoring time, and mod represents a modulo operation.
[0025] As an example, this approach may be applicable to a scenario where the first monitoring time and the second monitoring time have different lengths and each group of monitoring times is concentratedly distributed.
[0026] In combination with any aspect of the first to fourth aspects, in certain implementations, within a monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times; at least one of the M1 first monitoring times is located between the M2 second monitoring times, and at least one of the M2 second monitoring times is located between the M1 first monitoring times.
[0027] Based on the above technical solution, different groups of monitoring times can be alternating. In other words, within a monitoring cycle, the first monitoring time in the first group of monitoring times and the second monitoring time in the second group of monitoring times alternate. In this way, the average delay between the wake-up signal of the terminal device and the corresponding paging opportunity of the terminal device can be reduced, thereby reducing the overall average delay of the terminal device waking up the main circuit and improving the user experience.
[0028] In combination with any aspect of the first to fourth aspects, in some implementations, the M1 first monitoring times include m1 groups of first monitoring times, each group of first monitoring times includes at least one of the first monitoring time, and the M2 second monitoring times include m2 groups of second monitoring times, each group of second monitoring times includes at least one of the second monitoring time, wherein the m1 group of first monitoring times and the m2 group of second monitoring times appear alternately in time domain positions, and m1 and m2 are integers greater than 1.
[0029] As an example, the first monitoring time of the m1 group and the second monitoring time of the m2 group appear alternately in the time domain position, which can also be replaced by: there is a group of second monitoring time between every two groups of first monitoring times, and / or, there is a group of first monitoring time between every two groups of second monitoring times.
[0030] In combination with any aspect of the first to fourth aspects, in certain implementations, within a monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, the second group of monitoring times includes the M2 second monitoring times, and the starting position of the monitoring time in the time domain satisfies: (N1+offset)mod T=L1*K1+L2*K2; wherein, N1 represents the index of the starting position of the monitoring time in the time domain, offset is a number greater than 0 or equal to 0, T is the monitoring cycle, L1 is the time length of the first monitoring time, L2 is the time length of the second monitoring time, K1 is related to the position of the current monitoring time in the first group of monitoring times, K2 is related to the position of the current monitoring time in the second group of monitoring times, and mod represents a modulo operation.
[0031] As an example, this approach may be applicable to a scenario where the first monitoring time and the second monitoring time have different lengths, and each group of monitoring times is alternately distributed.
[0032] In combination with any one of the first to fourth aspects, in some implementations, the K1 is related to the identifier of the terminal device and / or M1; and / or the K2 is related to the identifier of the terminal device and / or M2.
[0033] In combination with any one of the first to fourth aspects, in some implementations, K1=UE ID mod M1+α, and / or K2=UE ID mod M2+β, where α and β are integers greater than 0 or equal to 0.
[0034] In combination with any aspect of the first to fourth aspects, in certain implementations, within a monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, the second group of monitoring times includes the M2 second monitoring times, and the starting position of the monitoring time in the time domain satisfies: (N1+offset)mod T=(T div(M1+M2))*N2; wherein, N1 represents the index of the starting position of the monitoring time in the time domain, N2 is the index of the monitoring time, offset is a number greater than 0 or equal to 0, T is the monitoring cycle, div represents integer division operation, and mod represents modulo operation.
[0035] As an example, this approach may be applicable to a scenario where the first monitoring time and the second monitoring time have the same length.
[0036] In combination with any one of the first to fourth aspects, in certain implementations, the monitoring time is associated with a paging occasion.
[0037] Based on the above technical solution, the monitoring time (such as the starting position of the monitoring time) and the paging opportunity have an associated relationship. In this way, the starting position of the monitoring time can be known according to the associated relationship and the paging opportunity.
[0038] In combination with any one of the first to fourth aspects, in certain implementations, the time intervals between the starting positions of two adjacent monitoring times in the at least two groups of monitoring times are equal.
[0039] In combination with any one of the first to fourth aspects, in certain implementations, the length of the first monitoring time is the same as the length of the second monitoring time.
[0040] Based on the above technical solution, the length of the monitoring time can be uniformly configured for the first group of monitoring time and the second group of monitoring time, which is simple to configure and saves the signaling overhead caused by indicating the length of the monitoring time.
[0041] In combination with any aspect of the first to fourth aspects, in some implementations, the terminal device corresponding to the first group of monitoring time is a device with an I / Q two-path receiver, or the receiving mode corresponding to the first group of monitoring time has an I / Q two-path receiver, and the time length of the first monitoring time is less than the time length of the second monitoring time.
[0042] Based on the above technical solution, the monitoring time is shorter in the group corresponding to the I / Q dual-channel receiver; or the monitoring time is shorter in the group corresponding to the I / Q dual-channel reception mode. As mentioned above, the I / Q dual-channel receiver may obtain complete information in a shorter time than the receiver without I / Q dual-channel. Therefore, the monitoring time corresponding to the I / Q dual-channel receiver or the I / Q dual-channel reception mode can be shortened, further reducing the resource overhead of the wake-up signal.
[0043] In combination with any one of the first to fourth aspects, in some implementations, the monitoring time is related to at least one of the following: an identifier of the terminal device, M1, or M2.
[0044] In combination with any aspect of the first to fourth aspects, in certain implementations, within a monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, the second group of monitoring times includes the M2 second monitoring times, and the index of the first monitoring time satisfies: UE ID mod M1; and / or, the index of the second monitoring time satisfies: (UE ID mod M2)+M1; wherein, UE ID represents the identifier of the terminal device, and mod represents a modulo operation.
[0045] In combination with any aspect of the first to fourth aspects, in certain implementations, within a monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, the second group of monitoring times includes the M2 second monitoring times, and the index of the first monitoring time satisfies: UE ID mod M1+floor((UE ID*M2 / M1)mod M2); and / or, the index of the second monitoring time satisfies: (UE ID mod M2)+floor(((UE ID*M2)+1)*M1 / M2); wherein, UE ID represents the identifier of the terminal device, mod represents a modulo operation, and floor represents rounding down.
[0046] In combination with any one of the first to fourth aspects, in certain implementations, a duration of any one monitoring time in the at least two groups of monitoring times is greater than or equal to a duration of a wake-up signal.
[0047] In combination with any one of the first to fourth aspects, in certain implementations, the first set of monitoring times is periodic, and / or the second set of monitoring times is periodic.
[0048] In combination with any aspect of the first to fourth aspects, in some implementations, the terminal device corresponding to the first group of monitoring time is a device with an I / Q two-path receiver, and the terminal device corresponding to the second group of monitoring time is an on-off keying OOK device; or, the terminal device corresponding to the first group of monitoring time is an OOK device, and the terminal device corresponding to the second group of monitoring time is a device with an I / Q two-path receiver.
[0049] In combination with any one of the first to fourth aspects, in some implementations, the wake-up signal is used to wake up at least one terminal device or at least one terminal device group.
[0050] In combination with any one of the first to fourth aspects, in some implementations, the modulation mode of the wake-up signal is OOK modulation.
[0051] In a fifth aspect, a communication device is provided, the device being configured to execute the method provided in any one of the first or second aspects. Specifically, the device may include units and / or modules, such as a processing unit and / or a communication unit, configured to execute the method provided in any one of the first to fourth aspects or any one of the aforementioned implementations of any one of the first to fourth aspects.
[0052] In one implementation, the apparatus is a communication device (e.g., a terminal device or a network device). When the apparatus is a communication device, the communication unit may be a transceiver or an input / output interface; the processing unit may be at least one processor. Alternatively, the transceiver may be a transceiver circuit. Alternatively, the input / output interface may be an input / output circuit.
[0053] In another implementation, the apparatus is a chip, chip system, or circuit used in a communication device. When the apparatus is a chip, chip system, or circuit used in a device, the communication unit may be an input / output interface, interface circuit, output circuit, input circuit, pin, or related circuit on the chip, chip system, or circuit; and the processing unit may be at least one processor, processing circuit, or logic circuit.
[0054] In a sixth aspect, a communication device is provided, comprising: at least one processor for executing the method provided by any one of the first to fourth aspects or any one of the above-mentioned implementations of any one of the first to fourth aspects.
[0055] Optionally, the device further includes: a memory for storing programs; accordingly, at least one processor is used to execute computer programs or instructions stored in the memory.
[0056] Optionally, the device further includes a communication interface, which is coupled to the processor and can be used to input information to the processor or output information from the processor.
[0057] In one implementation, the apparatus is a communication device (such as a terminal device or a network device).
[0058] In another implementation, the apparatus is a chip, a chip system, or a circuit used in a communication device.
[0059] In a seventh aspect, the present application provides a processor for executing the method provided by any one of the first to fourth aspects or any one of the above-mentioned implementations of any one of the first to fourth aspects.
[0060] For the operations such as sending and acquiring / receiving involved in the processor, unless otherwise specified, or if they do not conflict with their actual functions or internal logic in the relevant descriptions, they can be understood as operations such as processor output and input, or as sending and receiving operations performed by the radio frequency circuit and antenna. This application does not limit this.
[0061] In an eighth aspect, a computer-readable storage medium is provided, which stores a program code for execution by a device, and the program code includes a method for executing any one of the first to fourth aspects or any one of the above-mentioned implementation methods of any one of the first to fourth aspects.
[0062] In the ninth aspect, a computer program product comprising instructions is provided, which, when run on a computer, enables the computer to execute the method provided by any one of the first to fourth aspects or any one of the above-mentioned implementations of any one of the first to fourth aspects.
[0063] In the tenth aspect, a chip is provided, which includes a processor and a communication interface. The processor reads instructions stored in a memory through the communication interface and executes the method provided by any one of the first to fourth aspects or any one of the above-mentioned implementation methods of any one of the first to fourth aspects.
[0064] Optionally, as an implementation method, the chip also includes a memory, in which a computer program or instruction is stored, and the processor is used to execute the computer program or instruction stored on the memory. When the computer program or instruction is executed, the processor is used to execute the method provided by any one of the first to fourth aspects or any one of the above-mentioned implementation methods of any one of the first to fourth aspects.
[0065] In an eleventh aspect, a communication system is provided, comprising a first communication device and a second communication device. The first communication device is configured to execute the method provided in the first aspect, the second aspect, or any implementation thereof, and the second communication device is configured to execute the method provided in the third aspect, the fourth aspect, or any implementation thereof. BRIEF DESCRIPTION OF THE DRAWINGS
[0066] FIG1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application.
[0067] FIG2 is a schematic diagram of the main circuit and the wake-up circuit.
[0068] FIG3 is a waveform diagram of a signal when OOK modulation is used.
[0069] FIG4 is a schematic diagram of a waveform of a signal after Manchester encoding.
[0070] FIG5 is another schematic diagram of the waveform of a signal after Manchester encoding.
[0071] FIG6 and FIG7 are schematic diagrams of OOK symbols in the time domain and frequency domain.
[0072] FIG8 is a schematic diagram of continuous monitoring and duty cycle monitoring.
[0073] FIG9 is a schematic diagram of an OOK receiver and an OFDM receiver receiving a wake-up signal.
[0074] FIG10 is a schematic diagram of a communication method 1000 provided in an embodiment of the present application.
[0075] 11 and 12 are schematic diagrams applicable to Scheme 1.
[0076] FIG13 is a schematic diagram of a wake-up signal and PO.
[0077] FIG14 is a schematic diagram applicable to Scheme 2.
[0078] 15 and 16 are schematic diagrams of monitoring time lengths applicable to embodiments of the present application.
[0079] 17 and 18 are schematic diagrams of an embodiment of the present application in which the interval between the end position of the previous monitoring time and the start position of the next monitoring time is 0. FIG.
[0080] FIG19 is a schematic diagram of the relationship between monitoring time and PO applicable to an embodiment of the present application.
[0081] FIG20 is a schematic block diagram of a communication device 2000 provided in an embodiment of the present application.
[0082] FIG21 is a schematic diagram of another communication device 2100 provided in an embodiment of the present application.
[0083] FIG22 is a schematic diagram of a chip system 2200 provided in accordance with an embodiment of the present application. DETAILED DESCRIPTION
[0084] The technical solution in this application will be described below with reference to the accompanying drawings.
[0085] The technical solutions provided in this application can be applied to various communication systems, such as: fifth generation (5G) or new radio (NR) systems, long term evolution (LTE) systems, LTE frequency division duplex (FDD) systems, LTE time division duplex (TDD) systems, etc. The technical solutions provided in this application can also be applied to future communication systems. The technical solutions provided in this application can also be applied to device to device (D2D) communication, vehicle-to-everything (V2X) communication, machine to machine (M2M) communication, machine type communication (MTC), and Internet of Things (IoT) communication systems. The technical solutions provided in this application can also be applied to non-terrestrial network (NTN) systems such as intersatellite communication and satellite communication.
[0086] As an example, a satellite communication system includes a satellite base station and terminal devices. The satellite base station provides communication services to the terminal devices. The satellite base station can also communicate with other base stations. Satellites can function as both base stations and terminal devices. Satellites can refer to drones, hot air balloons, low-orbit satellites, medium-orbit satellites, high-orbit satellites, and other satellites. Satellites can also refer to non-ground base stations or non-ground devices.
[0087] As an example, V2X communication may include vehicle-to-vehicle (V2V) communication, vehicle-to-roadside infrastructure (V2I) communication, vehicle-to-pedestrian (V2P) communication, and vehicle-to-network (V2N) communication.
[0088] A device in a communication system can send signals to or receive signals from another device. The signals may include information, signaling, or data. A device may also be replaced by an entity, a network entity, a communication device, a communication module, a node, a communication node, and the like. The embodiments of this application are described using a device as an example.
[0089] The terminal devices in the embodiments of the present application include various devices with wireless communication functions, which can be used to connect people, objects, machines, etc. The terminal devices can be widely used in various scenarios, such as: cellular communication, D2D, V2X, peer to peer (P2P), M2M, MTC, IoT, virtual reality (VR), augmented reality (AR), industrial control, autonomous driving, telemedicine, smart grid, smart furniture, smart office, smart wearable, smart transportation, smart city drones, robots, remote sensing, passive sensing, positioning, navigation and tracking, autonomous delivery, etc. The terminal device can be a terminal device in any of the above scenarios, such as an MTC terminal device, an IoT terminal device, etc. The terminal device may be a user equipment (UE) of the third generation partnership project (3GPP) standard, a terminal device, a fixed device, a mobile station device or a mobile device, a subscriber unit, a handheld device, a vehicle-mounted device, a wearable device, a cellular phone, a smart phone, a SIP phone, a wireless data card, a personal digital assistant (PDA), a computer, a tablet computer, a notebook computer, a wireless modem, a handheld device, a laptop computer, a computer with wireless transceiver function, a smart book, a vehicle, a satellite, a global positioning system (GPS) device, a target tracking device, an aircraft (such as a drone, a helicopter, or an airplane), a ship, a remote control device, a smart home device, an industrial device, or a device built into the above-mentioned device (such as a communication module, a modem or a chip in the above-mentioned device), or other processing devices connected to a wireless modem. For the convenience of description, the following description takes the terminal device or UE as an example.
[0090] It should be understood that in some scenarios, a UE can also be used to act as a base station. For example, a UE can act as a scheduling entity that provides sidelink signals between UEs in scenarios such as V2X, D2D, or P2P.
[0091] In the embodiments of the present application, a device for implementing a function of a terminal device, i.e., a terminal device device, can be a terminal device, or a device capable of supporting the terminal device in implementing the function, such as a chip system or chip, which can be installed in the terminal device. In the embodiments of the present application, the chip system can be composed of a chip, or can include a chip and other discrete devices.
[0092] The network device in the embodiments of the present application may be a device for communicating with a terminal device, and may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. The network device in the embodiments of the present application may refer to a radio access network (RAN) node (or device) that connects a terminal device to a wireless network. Base station can broadly cover various names as follows, or replace the following names, such as: NodeB, evolved NodeB (eNB), next generation NodeB (gNB), relay station, access point, transmission point (TRP), transmission point, master station, auxiliary station, multiple standard radio (MSR) node, home base station, network controller, access node, wireless node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. The base station can be a macro base station, micro base station, relay node, donor node or the like, or a combination thereof. The base station can also refer to a communication module, modem or chip used to be set in the aforementioned device or apparatus. The base station can also be a mobile switching center, a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in a future communication system, or a device that performs base station functions in a future communication system. The base station can support networks with the same or different access technologies. The embodiments of this application do not limit the specific technology and specific device form used by the network device.
[0093] 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.
[0094] In some deployments, the network device mentioned in the embodiments of the present application may be a device including a CU, or a DU, or a device including a CU and a DU, or a control plane CU node (central unit control plane (central unit-control plane, CU-CP)) and a user plane CU node (central unit user plane (central unit-user plane, CU-UP)) and a DU node.
[0095] In some deployments, multiple RAN nodes collaborate to assist terminal devices in achieving wireless access, with different RAN nodes implementing portions of the base station's functionality. For example, a RAN node can be a CU, DU, CU-CP, CU-UP, or radio unit (RU). The CU and DU can be separate or included in the same network element, such as the BBU. The RU can be included in a radio frequency device or radio unit, such as an RRU, AAU, or RRH.
[0096] In different systems, CU (or CU-CP and CU-UP), DU or RU may also have different names, but those skilled in the art can understand their meanings. For example, the radio access network may also be an open radio access network (O-RAN) architecture. In the ORAN system, CU may also be called an open CU (open CU, O-CU), DU may also be called an open DU (open DU, O-DU), CU-CP may also be called an open (open CU-CP, O-CU-CP), CU-UP may also be called an open (open CU-UP, O-CU-UP), and RU may also be called an open RU (open RU, O-RU). Any unit of CU (or CU-CP, CU-UP), DU and RU in this application may be implemented by a software module, a hardware module, or a combination of a software module and a hardware module.
[0097] In the embodiments of the present application, the apparatus for implementing the function of the network device can be the network device, or it can be an apparatus capable of supporting the network device to implement the function, such as a chip system or chip, which can be installed in the network device. In the embodiments of the present application, the chip system can be composed of a chip, or it can include a chip and other discrete devices.
[0098] The network equipment and terminal devices can be deployed on land, including indoors or outdoors, handheld or vehicle-mounted; they can also be deployed on the water; they can also be deployed in the air on aircraft, balloons, and satellites. The embodiments of this application do not limit the scenarios in which the network equipment and terminal devices are located.
[0099] First, a communication system applicable to an embodiment of the present application is briefly introduced with reference to FIG1 as follows.
[0100] Referring to Figure 1, as an example, Figure 1 is a schematic diagram of a wireless communication system applicable to an embodiment of the present application. As shown in Figure 1, the wireless communication system includes a wireless access network 100. The wireless access network 100 can be a next-generation (e.g., higher version) wireless access network, or a traditional (e.g., 5G, 4G, 3G, or 2G) wireless access network. One or more terminal devices (120a-120j, collectively referred to as 120) can be connected to each other or to one or more network devices (110a, 110b, collectively referred to as 110) in the wireless access network 100. Network elements in the wireless communication system are connected through interfaces (e.g., NG, Xn) or air interfaces.
[0101] When a network device communicates with a terminal device, the network device can manage one or more cells, and a cell can include at least one terminal device. A cell can be understood as an area within the wireless signal coverage range of the network device.
[0102] FIG1 is only a schematic diagram. The wireless communication system may further include other devices, such as core network devices, wireless relay devices and / or wireless backhaul devices, which are not shown in FIG1 .
[0103] To facilitate understanding of the embodiments of the present application, a brief explanation of the terms involved in the present application is given.
[0104] 1. Wake-up circuit: also known as wake-up receiver / radio (WUR) or low-power wake-up receiver (LP-WUR) or wake-up module, can be understood as a separate low-power small circuit, such as the circuit used by the terminal device in the idle state. The low-power small circuit can be implemented using a separate small circuit or chip with a simple structure, and its power consumption is low. It can be understood that the wake-up circuit is only a name for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up circuit can also be described as the first circuit (or first module). The following is uniformly described as a wake-up circuit.
[0105] The signal received by the terminal device through the wake-up circuit can be said to be transmitted on the wake-up link. The wake-up link represents a connection relationship between the terminal device and the network device. It is a logical concept, not a physical entity. It is understood that the wake-up link is only a name used for differentiation and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up link can also be described as the first link. It is uniformly described below as the wake-up link.
[0106] The signal received by the terminal device using the wake-up circuit can be called a wake-up signal (WUS) or a low-power wake-up signal (LP-WUS). It is understood that the wake-up signal is only named for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the wake-up signal can also be called a signal. hereinafter uniformly described as a wake-up signal.
[0107] 2. Main circuit: Also known as the main receiver (MR) or main module, it can be understood as the circuit used by the terminal device when transmitting data normally, or the circuit used by the terminal device when transmitting data in a connected state. When the terminal device transmits data through the main circuit, it consumes a lot of power. It can be understood that the main circuit is only a name for distinction, and its specific naming does not limit the scope of protection of this application. For example, without loss of generality, the main circuit can also be described as the second circuit (or second module). The following unified description is the main circuit.
[0108] Signals received by a terminal device via the primary circuit can be said to be transmitted on the primary link. The primary link represents a connection between the terminal device and the network device and is a logical concept, not a physical entity. It should be understood that the primary link is a name used for differentiation purposes only and does not limit the scope of protection of this application. For example, without loss of generality, the primary link can also be described as a secondary link. The following description will uniformly refer to the primary link.
[0109] In the following, for the sake of distinction, the signal transmitted by the terminal device using the main circuit is recorded as a data signal.
[0110] Refer to FIG2 , which is a schematic diagram of a main circuit and a wake-up circuit as an example.
[0111] As shown in Figure 2, the terminal device can receive (or detect, or monitor) a wake-up signal through the wake-up circuit, and the terminal device can receive data signals through the main circuit. Assume that the terminal device receives a wake-up signal through the wake-up circuit. If the terminal device does not detect the wake-up signal, it continues to receive the wake-up signal through the wake-up circuit, and the main circuit can be in an off state (or a sleep state); if the terminal device detects the wake-up signal, it triggers the wake-up of the main circuit, that is, the main circuit is in / switched to an on state (or a working state, or an active state). After the main circuit is turned on, the terminal device can transmit data signals through the main circuit.
[0112] 3. On-off keying (OOK) modulation: This modulates information based on whether a signal is transmitted or not. The corresponding wake-up circuit can use envelope detection to receive the signal. OOK modulation technology can be demodulated using a low-complexity receiver, thus achieving the low power consumption goal of the wake-up circuit. To ensure power efficiency, the wake-up signal can use OOK modulation. It is understood that other modulation methods can also be used for the wake-up signal, and this is not limited.
[0113] When a signal is modulated using OOK, each bit (i.e., an encoded bit) corresponds to a symbol. Equivalently, a symbol can also be called a chip, or other names, which are not limited here.
[0114] For example, when a bit is "1," a signal is transmitted within the symbol length (i.e., the signal transmission power is not zero within the symbol length); when a bit is "0," no signal is transmitted within the symbol length (i.e., the signal transmission power is zero within the symbol length). Alternatively, in OOK modulation, if energy is transmitted, it represents a "1," and if no energy is transmitted, it represents a "0."
[0115] For example, when a bit is "0," a signal is transmitted within the symbol length (i.e., the signal transmission power is not 0 within the symbol length); when a bit is "1," no signal is transmitted within the symbol length (i.e., the signal transmission power is 0 within the symbol length). Alternatively, in OOK modulation, if energy is transmitted, it represents a "0," and if no energy is transmitted, it represents a "1."
[0116] For ease of description, the following mainly uses the example that when a bit is "1", a signal is sent within the symbol length; when a bit is "0", no signal is sent within the symbol length.
[0117] For ease of description, if a symbol contains a signal, it is referred to as an ON symbol; if no signal is transmitted within a symbol, it is referred to as an OFF symbol. For example, if a bit is "1," a signal is transmitted within the symbol length, and if a bit is "0," no signal is transmitted within the symbol length. The ON symbol indicates that the information bit is "1," and the OFF symbol indicates that the information bit is "0." The ON symbol can also be referred to as an ON signal, and the OFF symbol can also be referred to as an OFF signal. For consistency, the following descriptions use the terms ON symbol and OFF symbol.
[0118] Among them, the signal amplitude of the ON symbol is greater than or equal to the first threshold, and the signal amplitude of the OFF symbol is less than or equal to the second threshold; or, in other words, the signal amplitude of the ON symbol is greater than the signal amplitude of the OFF symbol; or, in other words, within a preset time period, the signal amplitude of the ON symbol is greater than the signal amplitude of the OFF symbol; or, in other words, the signal power of the ON symbol is greater than the signal power of the OFF symbol; or, in other words, within a preset time period, the signal power of the ON symbol is greater than the signal power of the OFF symbol; or, in other words, the signal power of the ON symbol is greater than or equal to the first threshold, and the signal power of the OFF symbol is less than or equal to the second threshold; or, in other words, within a preset time period, the signal power of the ON symbol is greater than or equal to the first threshold, The signal power of the FF symbol is less than or equal to the second threshold; in other words, the signal level value of the ON symbol is greater than the signal level value of the OFF symbol; in other words, within a preset time period, the signal level value of the ON symbol is greater than the signal level value of the OFF symbol; in other words, the signal level value of the ON symbol is greater than or equal to the first threshold, and the signal level value of the OFF symbol is less than or equal to the second threshold; in other words, within a preset time period, the signal level value of the ON symbol is greater than or equal to the first threshold, and the signal level value of the OFF symbol is less than or equal to the second threshold; in other words, the ON symbol indicates (or corresponds to, or represents) a first bit value, and the OFF symbol indicates (or corresponds to, or represents) a second bit value. The first bit value and the second bit value are different. In one example, the first bit value is "1" and the second bit value is "0".
[0119] In addition, the OOK symbols mentioned below refer to symbols obtained using OOK modulation. OOK symbols can be, for example, ON symbols or OFF symbols. For example, if the information bit is "1," the OOK symbol obtained through OOK modulation is an ON symbol, while if the information bit is "0," the OOK symbol obtained through OOK modulation is an OFF symbol. OOK symbols can also be called OOK signals; for consistency, they are used in the following descriptions.
[0120] Refer to FIG3 , as an example, which is a waveform diagram of a signal when OOK modulation is adopted.
[0121] As an example, assume that when a bit is "1," a signal is transmitted within the OOK symbol length; when a bit is "0," no signal is transmitted within the OOK symbol length. Therefore, the waveform shown in Figure 3 represents the four bits "0100," meaning the first is an OFF symbol, the second is an ON symbol, and the third and fourth are both OFF symbols. As shown in Figure 3, communication systems generally use a specific frequency for transmission, and the transmitted signal must be modulated on a carrier. At the receiving end, the receiving end detects the envelope (or energy) of the received signal and determines whether the OOK symbol corresponds to a bit "0" or a bit "1," thereby completing demodulation.
[0122] 4. Manchester coding: It is a bi-phase coding that can represent bit "0" or bit "1" by switching between high and low levels. For example, through Manchester coding, the original bit "0" can be encoded as bit "10", and the original bit "1" can be encoded as bit "01". To distinguish, the bits after the original bit is encoded, such as bits "10" and "01", can be called coded bits. When sending a signal, the transmitter can use two OOK symbols to send 1 bit of original information. If the original bit "0" is encoded as bit "10" and the original bit "1" is encoded as bit "01", then the original bit "0" corresponds to an ON symbol followed by an OFF symbol, and the original bit "1" corresponds to an OFF symbol followed by an ON symbol. When the receiver demodulates the Manchester-coded signal, it can compare the relative size of the signal power (or signal amplitude) within two adjacent OOK symbols. If the signal power (or amplitude) in the preceding OOK symbol is greater than the signal power (or amplitude) in the following OOK symbol, the received information bit is considered "0", and vice versa. This avoids the need for absolute thresholds for decision making.
[0123] It is understood that the above description uses the example of encoding the original bit "0" as bit "10" and the original bit "1" as bit "01" for illustrative purposes only, and is not intended to be limiting. For example, the original bit "0" is encoded as bit "01" and the original bit "1" is encoded as bit "10".
[0124] As an example, the signal may be generated based on an orthogonal frequency division multiplexing (OFDM) transmitter, that is, the signal may be modulated using an OFDM transmitter.
[0125] One possible approach is to transmit an OOK symbol within the length of an OFDM symbol, or in other words, to transmit an OOK symbol within the length of an OFDM symbol. For example, to send an ON symbol within the length of an OOK symbol, the transmitter can send a specific signal so that the signal's profile within the length of the OOK symbol is as square as possible. To send an OFF symbol within the length of an OOK symbol, the transmitter can shut down for the length of the OOK symbol.
[0126] Refer to Figure 4, as an example, which is a schematic diagram of the waveform of a signal after Manchester encoding. As shown in Figure 4, the original bits are "0 0 1 0 0 1 0 1 1 0". Assuming that the original bit "0" is encoded as "10" and the original bit "1" is encoded as "01", the coded bits after Manchester encoding are "10 10 01 10 10 01 10 01 01 10", and the waveform is shown in Figure 4. Among them, the time length corresponding to each coded bit can be considered as the length of an OFDM symbol, that is, an OOK symbol is transmitted within the length of an OFDM symbol, or an OOK symbol occupies one OFDM symbol. When demodulating the signal, the receiving end can compare the relative size of the signal power (or signal amplitude) in two adjacent OOK symbols and determine the demodulated information bit based on the comparison result.
[0127] In the above method, one OOK symbol is transmitted within the length of one OFDM symbol. This method is simple, but the supported data rate is relatively low. This is because in the above method, no matter how large the signal bandwidth is, one OOK symbol is transmitted within the length of one OFDM symbol. If the system uses a sub-carrier spacing (SCS) of 30kHz, a slot length of 0.5ms, and a slot containing 14 OFDM symbols, in this case, assuming no coding is used and each OOK symbol carries 1 bit of information, the maximum supported data rate is 1 / 0.5*14*1000 = 28kbps.
[0128] To increase the data rate of OOK symbols, one possible approach is to shorten the length of the OOK symbols, that is, to transmit at least two OOK symbols within the length of one OFDM symbol, or in other words, at least two OOK symbols occupy one OFDM symbol.
[0129] Refer to Figure 5, which is another schematic diagram of the waveform of a signal after Manchester encoding. As shown in Figure 5, the original bits are "0 0 0 1". Assuming that the original bit "0" is encoded as "10" and the original bit "1" is encoded as "01", the coded bits after Manchester encoding are "10 10 10 10 01", and the waveform is shown in Figure 5. Within the length of one OFDM symbol (2192 sampling points in Figure 5), eight OOK symbols are transmitted: ON symbol-OFF symbol-ON symbol-OFF symbol-ON symbol-OFF symbol-OFF symbol-OFF symbol-ON symbol. When demodulating the signal, the receiving end can compare the relative signal power (or signal amplitude) of two adjacent OOK symbols and determine the demodulated information bits based on the comparison results.
[0130] To generate the above waveform, one possible implementation method is to first determine the target waveform x in the time domain, and then perform some operations, such as discrete Fourier transform (DFT) and inverse fast Fourier transform (IFFT), to obtain the sequence to be transmitted.
[0131] Refer to Figures 6 and 7, which are schematic diagrams of OOK symbols in the time domain and frequency domain, as examples. As shown in Figure 6, assuming that an "ON symbol-OFF symbol-ON symbol-OFF symbol" waveform is to be generated, the target waveform can be set to: x = [1, 1, ..., 1, 0, 0, ..., 0, 1, 1, ..., 1, 0, 0, ..., 0], or, That is, the amplitude of some ON symbols is 1, while the phase of some ON symbols can be inconsistent, as shown in Figure 6. As shown in Figure 7, a DFT can be performed on x to obtain the frequency domain sequence y corresponding to x. y is then mapped to a frequency resource (such as the frequency resource corresponding to the wake-up signal). An IFFT is then performed on the frequency domain signal. A cyclic prefix (CP) is added to the IFFT-processed signal to obtain the sequence to be transmitted, x' (see the curve in Figure 6). As shown in Figure 6, the shapes of x and x' are similar, so at least two OOK symbols can be transmitted within the length of a single OFDM symbol.
[0132] For the receiver, one possible implementation is to use envelope detection or energy detection to receive signals. For example, the signal received by the receiver (referred to as an OOK receiver for distinction) first passes through a matching network and radio frequency (RF) filter to filter out out-of-band noise / interference. A mixer then shifts the spectrum to the baseband (BB), where a baseband filter further filters out out-of-band noise / interference. The signal is then subjected to envelope detection / energy detection (at this point, the baseband signal is mathematically represented as a real number, with only amplitude and no phase). Specifically, the OOK receiver detects the energy levels within different time ranges to determine whether the received signal is an ON symbol or an OFF symbol, allowing for subsequent processing.
[0133] In order to further improve the demodulation performance, a more advanced receiver may be considered, such as a receiver with in-phase (I) and quadrature (Q) paths (referred to as an OFDM receiver for distinction).
[0134] In one possible implementation, the signal received by the OFDM receiver first passes through a matching network and RF filters to filter out out-of-band noise / interference. The spectrum is then moved to the baseband through a mixer. When the spectrum is moved to the baseband, the I and Q branches are distinguished (the corresponding mixing signals have a phase difference of pi / 2). The signal on each branch is further filtered out of out-of-band noise / interference through a baseband filter. The two signals are then combined together. At this time, the value of the baseband signal will be mathematically expressed as a complex number, with both amplitude and phase. The baseband signal is then further processed.
[0135] When an OFDM receiver receives the aforementioned OOK symbols, since the OFDM receiver has the ability to detect signal phase, it can further detect sequence information within the ON symbol of the OOK symbol. For example, if the OFDM receiver knows in advance (e.g., predefined by the protocol, or the network device pre-configures relevant parameters to the terminal device) the specific information of the sequence that generates the ON symbol, the OFDM receiver can generate a local sequence based on the sequence that generates the ON symbol. By correlating the received signal with the local sequence, the impact of noise (such as in-band noise) and / or interference that is not filtered out by the filter can be reduced, thereby improving demodulation performance. Alternatively, if there may be multiple sequences that generate the ON symbol, the OFDM receiver can detect and identify which sequence was sent, thereby obtaining more information. For example, assuming that there may be four sequences that generate the ON symbol, each sequence corresponding to the information {00, 01, 10, 11}, the OFDM receiver can obtain an additional 2 bits of information by detecting which sequence was used. This can increase the data rate carried by the wake-up signal. The above-mentioned method of "letting the OFDM receiver know the information of the sequence used to generate OOK symbols, thereby improving demodulation performance and / or increasing the data rate" can be called sequence on top of OOK or overlaid sequence over OOK.
[0136] 5. Wake-up signal monitoring methods: continuous monitoring and duty-cycle monitoring.
[0137] See FIG8 , which is a schematic diagram of continuous monitoring and duty cycle monitoring as an example.
[0138] Continuous monitoring: This means that the wake-up circuit may be turned on for a long time or always on. The terminal device monitors the wake-up signal through the wake-up circuit at all possible transmission locations of the wake-up signal, as shown in (a) in Figure 8.
[0139] Duty cycle monitoring: This can also be called discontinuous monitoring or periodic monitoring. It means that the wake-up circuit may be on part of the time and off part of the time. The terminal device monitors the wake-up signal through the wake-up circuit at some possible transmission locations of the wake-up signal, as shown in (b) or (c) in Figure 8.
[0140] 6. Related parameters of the wake-up signal: parameters related to monitoring the wake-up signal. As an example, the related parameters of the wake-up signal include: the monitoring periodicity of the wake-up signal (for example, the LP-WUS monitoring period), the monitoring duration of the wake-up signal (for example, the LP-WUS monitoring duration), the monitoring offset value of the wake-up signal, and the occasion (occasion) of the wake-up signal (for example, the LP-WUS occasion). For example, in duty cycle monitoring, the network device configures at least one of the above parameters of the wake-up signal for the terminal device (or terminal device group). The above at least one parameter of the wake-up signal may also be default or pre-agreed or predefined, which is not limited. The following is a brief introduction to the above parameters.
[0141] 1) Wake-up signal monitoring period: This is also referred to as the monitoring period. It refers to the interval at which a terminal device (or group of terminal devices) monitors for the wake-up signal. For example, in the examples shown in (b) or (c) of Figure 8 , the wake-up signal monitoring period is 4 grids.
[0142] As an example, the wake-up signal monitoring period is equal to the paging period. For example, if the paging period is 1.28 seconds, the terminal device (or terminal device group) monitors the wake-up signal every 1.28 seconds. For another example, if the paging period is 640 milliseconds, the terminal device (or terminal device group) monitors the wake-up signal every 640 milliseconds.
[0143] 2) Wake-up signal monitoring duration: This can also be referred to as monitoring duration or monitoring time. It refers to the duration that a terminal device (or terminal device group) monitors for a wake-up signal each time. For example, in the example shown in Figure 8 (b), the wake-up signal monitoring duration is 1 grid. For another example, in the example shown in Figure 8 (c), the wake-up signal monitoring duration is 2 grids.
[0144] One or more wake-up signals can typically be sent during a wake-up signal monitoring duration. This means that the duration of a wake-up signal monitoring duration is greater than or equal to the duration of the wake-up signal. For example, if the duration of a wake-up signal is 1ms, the duration of a wake-up signal monitoring duration can be 10ms. Thus, a maximum of 10 wake-up signals can be sent during this wake-up signal monitoring duration. Furthermore, assuming the duration of a wake-up signal monitoring duration is 1.28s, from the perspective of the network device, 128 wake-up signal monitoring durations can be included in this wake-up signal monitoring duration. This is equivalent to dividing the terminal devices monitoring the wake-up signal into 128 groups based on different time domain monitoring locations. Because there are many terminal devices in a network, the number of terminal devices in the terminal device group corresponding to each wake-up signal monitoring duration will also be large. The ability to send multiple wake-up signals during a wake-up signal monitoring duration facilitates sending wake-up signals corresponding to multiple terminal devices (or terminal device subgroups) within a single wake-up signal monitoring duration. This allows for waking up as many terminal devices as possible when services from multiple terminal devices arrive simultaneously (or within a similar timeframe), thereby reducing latency. The terminal device subgroup may refer to a group consisting of multiple terminal devices in a terminal device group.
[0145] 3) Monitoring offset value: Also known as the monitoring offset value of the wake-up signal, this value refers to the offset relative to the starting position during each wake-up signal monitoring cycle. For example, in the example shown in Figure 8 (b), the monitoring offset value is 0 grids. For another example, in the example shown in Figure 8 (c), the monitoring offset value is 1 grid.
[0146] Network devices can configure different monitoring offset values for different terminal devices (or terminal device groups) to stagger the time domain monitoring positions of different terminal devices (or terminal device groups), thereby avoiding congestion or conflict of wake-up signals from too many terminal devices.
[0147] 4) Timing of the wake-up signal: It can also be referred to as the timing or transmission timing, which refers to the basic time unit when the wake-up circuit is working. The timing of the wake-up signal can also be called the monitoring occasion of the wake-up signal, such as the LP-WUS monitoring occasion, which can also be referred to as the monitoring occasion. A wake-up signal may occupy one or more wake-up signal occasions. The timing of the wake-up signal and the orthogonal frequency division multiplexing (OFDM) symbol (OFDM symbol) are similar concepts, that is, the timing of the wake-up signal is a unit (such as the minimum unit) of time domain resource scheduling, that is, a time domain unit (or time unit) can be the timing of a wake-up signal. As an example, the timing of a wake-up signal includes one or more OOK symbols, or the timing of a wake-up signal includes one or more OFDM symbols, etc.
[0148] As mentioned above, when there are multiple sequences generating ON symbols, an OFDM receiver can even detect and identify which sequence was sent, thereby obtaining more information. Therefore, an OFDM receiver may be able to obtain complete information in a shorter time than an OOK receiver.
[0149] Referring to FIG9 , as an example, FIG9 is a schematic diagram of an OOK receiver and an OFDM receiver receiving a wake-up signal. Assuming that the total number of original bits is 15 bits, the 15 bits are OOK modulated, and the modulated bits are carried in the wake-up signal, as shown in the entire wake-up signal in FIG9 . If Manchester encoding is used, the total length of the wake-up signal may be 30 OOK symbols. If we further consider carrying information through an OFDM sequence, for example, 5 bits of the 15 bits are OOK modulated and included at the start position of the entire wake-up signal (as shown in the shaded portion of FIG9 , if Manchester encoding is used, the length of the shaded portion may be 10 OOK symbols), and the remaining 10 bits of the 15 bits are carried through the OFDM sequence. For example, the length of the shaded portion shown in FIG9 is 10 OOK symbols, and 5 of the 10 OOK symbols are ON symbols. The OFDM sequence that generates each ON symbol is one of the 4 possible sequences. Therefore, within each ON symbol, 2 bits of information can be carried through the OFDM sequence. Thus, the shaded portion shown in Figure 9 can carry 2*5=10 bits of information through the OFDM sequence. In other words, the OFDM receiver can obtain the complete 5+10=15 bits of information through the shaded portion. In other words, the OFDM receiver can stop receiving after receiving the shaded portion, thereby shortening the overall signal reception time and further reducing power consumption. In contrast, the OOK receiver must receive the entire wake-up signal before it can obtain the complete 15 bits of information. From the network equipment side, since the current network has both OFDM receivers and OOK receivers, the network equipment must send the entire wake-up signal to ensure that each type of receiver can receive the complete information.
[0150] It is understood that the non-shaded portion also includes OOK symbols (for example, the total 30 OOK symbols minus the 10 shaded OOK symbols result in 20 OOK symbols). The OOK symbols can be generated based on a certain OFDM sequence. Furthermore, the ON symbols within the OOK symbols can be generated based on a specific OFDM sequence or selected from multiple OFDM sequences based on a certain rule, without limitation.
[0151] In the above solution, if the network device determines that there is an OFDM receiver but no OOK receiver within the current network coverage area (for example, within a tracking area), the network device can transmit the shaded portion and not the non-shaded portion. This can further reduce network resource overhead. However, this method requires an OFDM receiver but no OOK receiver, which limits its applicability to very limited scenarios, and therefore likely fails to achieve the aforementioned reduction in network resource overhead.
[0152] In view of this, the present application proposes that it is possible to consider distinguishing different types of receivers (such as OFDM receivers and OOK receivers) or different receiving modes. Taking different types of receivers as an example, for example, if there is an OFDM receiver but no OOK receiver in a "local location", it is possible to reduce network resource overhead at these locations. Specifically, when determining (or allocating) the monitoring duration of the wake-up signal, the influence of the receiver type (receiver type) or the receiving mode is considered. For example, the OFDM receiver is designed to correspond to a set of monitoring durations of wake-up signals, and the OOK receiver is designed to correspond to a set of monitoring durations of wake-up signals. In this way, it can not only be applied to more scenarios, but also reduce the sending time of the wake-up signal within the timing of the wake-up signal corresponding to the OFDM receiver, thereby reducing network resource overhead.
[0153] Before introducing the solution of this application, the following points are explained.
[0154] (1) In this application, “indication” may include direct indication, indirect indication, explicit indication, implicit indication, etc. When describing that a certain indication information indicates A, it can be understood that the indication information carries A, directly indicates A, or indirectly indicates A.
[0155] In this application, the information indicated by the indication information is referred to as the information to be indicated. In the specific implementation process, there are many ways to indicate the information to be indicated, such as but not limited to, the information to be indicated can be directly indicated, such as the information to be indicated itself or the index of the information to be indicated. The information to be indicated can also be indirectly indicated by indicating other information, wherein there is an association between the other information and the information to be indicated. It is also possible to indicate only a part of the information to be indicated, while the other parts of the information to be indicated are known or agreed in advance. For example, the indication of specific information can also be achieved with the help of the arrangement order of each information agreed in advance (for example, stipulated by the protocol), thereby reducing the indication overhead to a certain extent. In addition, the information to be indicated can be sent together as a whole, or it can be divided into multiple sub-information and sent separately, and the sending period and / or sending time of these sub-information can be the same or different.
[0156] (2) In this application, the expression “ / ” is used to indicate that the objects associated with each other are in an “or” relationship; for example, A / B can mean: A or B. The expression “and / or” is used to indicate that the objects associated with each other can be in an and relationship or an or relationship; for example, A and / or B can mean the following situations: A exists alone, B exists alone, and A and B exist at the same time, where A and B can be single or multiple. “At least one of the following” or similar expressions is used to indicate any combination of the listed items; for example, at least one of A, B and / or C can mean the following situations: A exists alone, B exists alone, C exists alone, A and B exist at the same time, B and C exist at the same time, A and C exist at the same time, and A, B and C exist at the same time, where A, B and C can be single or multiple.
[0157] (3) In this application, "sending" and "receiving" refer to the direction of signal transmission. For example, "sending information to XX" can be understood as the destination of the information being XX, which can include direct sending through the air interface, and also include indirect sending through the air interface by other units or modules. "Receiving information from YY" can be understood as the source of the information being YY, which can include direct receiving from YY through the air interface, and also include indirect receiving from YY through the air interface from other units or modules. "Sending" can also be understood as the "output" of the chip interface, and "receiving" can also be understood as the "input" of the chip interface. In other words, sending and receiving can be carried out between devices, for example, between a network device and a terminal device, or can be carried out within a device, for example, sending or receiving between components, modules, chips, software modules or hardware modules within the device through a bus, a line or an interface.
[0158] (4) In this application, formulas are mentioned many times, where "mod" represents a modulo operation, "div" represents an integer division operation, "floor" represents rounding down, "*" represents multiplication, and " / " represents division.
[0159] (5) In the various embodiments of the present application, unless otherwise specified or there is a logical conflict, the terms and / or descriptions between different embodiments are consistent and can be referenced by each other. The technical features in different embodiments can be combined to form new embodiments according to their inherent logical relationships.
[0160] (6) In this application, the terms "first" and "second" are used for convenience of description only and are not intended to limit the scope of the embodiments of this application. They are not used to describe the order or precedence of features. It should be understood that the terms described in this manner may be interchangeable, where appropriate, to describe solutions other than the embodiments of this application.
[0161] The following will describe in detail the method provided by the embodiment of the present application in conjunction with the accompanying drawings. The embodiment provided by the present application can be applied to the scenarios shown in the above figures without limitation.
[0162] Referring to Figure 10, as an example, Figure 10 is a schematic diagram of a communication method 1000 provided in an embodiment of the present application. For the convenience of description below, an exemplary explanation is given by taking the execution subject of method 1000 as a terminal device as an example. It can be understood that the execution subject of method 1000 can also be a component of the terminal device, such as a chip, a chip system or a circuit, without limitation. The steps described below as being performed by a single execution subject can also be divided into steps performed by multiple execution subjects, and these execution subjects can be logically and / or physically separated. The method 1000 shown in Figure 10 may include the following steps.
[0163] The method 1000 includes step 1020. Optionally, the method 1000 includes step 1010.
[0164] 1010. The terminal device determines the monitoring time.
[0165] The monitoring time belongs to the monitoring time in at least two groups of monitoring time. The monitoring time may refer to the aforementioned monitoring duration of the wake-up signal, and is uniformly described as the monitoring time below.
[0166] The length of any one of the at least two groups of monitoring times may be greater than or equal to the length of a wake-up signal. For example, the length of a wake-up signal is t (e.g., 1 ms), and the length of a monitoring time may be greater than or equal to t. For example, the length of a monitoring time is x*t, so that at most x wake-up signals can be sent in one monitoring time, where x is a positive integer. A monitoring time may include at least one opportunity for a wake-up signal. The timing of the wake-up signal can refer to the previous description.
[0167] The monitoring opportunity belongs to a monitoring time in at least two groups of monitoring times, which can be understood as: the monitoring opportunity belongs to a certain group of monitoring times in the at least two groups of monitoring times. The certain group of monitoring times may be related to the type or receiving mode of the terminal device.
[0168] For example, the at least two groups of monitoring times include two groups of monitoring times, where the two groups of monitoring times include a first group of monitoring times and a second group of monitoring times, the first group of monitoring times includes M1 monitoring times, and the second group of monitoring times includes M2 monitoring times. M1 and M2 are integers greater than or equal to 1. For purposes of distinction, the monitoring times in the first group of monitoring times are referred to as first monitoring times, and the monitoring times in the second group of monitoring times are referred to as second monitoring times. That is, the first group of monitoring times includes M1 first monitoring times, and the second group of monitoring times includes M2 second monitoring times.
[0169] Among them, the receiver types (or terminal device types) corresponding to the first group of monitoring time and the second group of monitoring time are different, or the receiving modes corresponding to the first group of monitoring time and the second group of monitoring time are different. This will be described in detail later in conjunction with aspect 1.
[0170] Wherein, M1 is the number of monitoring times included in the first set of monitoring times. For example, M1 is the number of monitoring times included in the first set of monitoring times within a monitoring cycle, i.e., the number of first monitoring times within a monitoring cycle. Further, as an example, the number of first monitoring times within each monitoring cycle is M1; alternatively, the number of first monitoring times within at least two monitoring cycles is different, and this is not limited.
[0171] Wherein, M2 is the number of monitoring times included in the second set of monitoring times. For example, M2 is the number of monitoring times included in the second set of monitoring times within a monitoring cycle, i.e., the number of second monitoring times within a monitoring cycle. Further, as an example, the number of second monitoring times within each monitoring cycle is M2; alternatively, the number of second monitoring times within at least two monitoring cycles is different, and this is not limited.
[0172] The following mainly uses M1 as the number of first monitoring times in a monitoring cycle, and M2 as the number of second monitoring times in a monitoring cycle as an example for explanation.
[0173] As an example, M1=M2, or M1≠M2.
[0174] As an example, M1 and M2 have an association relationship. The association relationship between M1 and M2 can exist in the form of a table, function, text, or string, such as in storage or transmission. The association relationship between M1 and M2 can be predefined, preconfigured, or indicated by a network device, without limitation.
[0175] Optionally, method 1000 further includes: the terminal device receiving indication information, the indication information indicating M1 and / or M2. Accordingly, the network device sends the indication information. Based on this, M1 and / or M2 may be configured by the network device. In this way, the network device can configure appropriate M1 and M2 based on actual conditions.
[0176] Example 1: The indication information indicates M1. For example, the indication information indicates M1, and M1 and M2 have an association relationship, so that M1 can be determined according to the indication information, and the corresponding M2 can be determined according to the association relationship between M1 and M2.
[0177] Example 2: The indication information indicates M2. For example, the indication information indicates M2, and M1 and M2 have an association relationship, so M2 can be determined based on the indication information, and the corresponding M1 can be determined based on the association relationship between M1 and M2.
[0178] Example 3: The indication information indicates M1 and M2.
[0179] For example, the indication information indicates M1 and M2.
[0180] For another example, the indication information indicates M1 or M2, and the value of f(M1, M2). Here, f(M1, M2) represents a function related to M1 and M2. For example, f(M1, M2) = M1 + M2, which means that the indication information includes the values of M1 and M1 + M2. For another example, f(M1, M2) = M1 / (M1 + M2), which means that the indication information indicates the values of M1 and M1 / (M1 + M2). For another example, f(M1, M2) = M2 / (M1 + M2), which means that the indication information indicates the values of M1 and M2 / (M1 + M2).
[0181] For another example, the indication information indicates the values of f1(M1, M2) and f2(M1, M2). Here, f1(M1, M2) and f2(M1, M2) represent functions related to M1 and M2. For example, f1(M1, M2) = M1 + M2, f2(M1, M2) = M1 / (M1 + M2), or f2(M1, M2) = M2 / (M1 + M2). In other words, the indication information indicates the values of M1 + M2 and M1 / (M1 + M2), or M2 / (M1 + M2).
[0182] 1020. The terminal device monitors the wake-up signal within the monitoring time.
[0183] Specifically, one monitoring time corresponds to at least one terminal device or at least one group of terminal devices. Each terminal device or each group of terminal devices can monitor the wake-up signal during their corresponding monitoring time and stop monitoring the wake-up signal during other monitoring times.
[0184] For ease of understanding and description, the following describes the relevant solutions of the embodiments of the present application in combination with several aspects. It is understood that the contents of the various aspects described below can be used alone or in combination, and there is no limitation on this.
[0185] Aspect 1: The receiver types or receiving modes corresponding to the first set of monitoring times and the second set of monitoring times.
[0186] The first set of monitoring times and the second set of monitoring times are different, that is, the first set of monitoring times and the second set of monitoring times are located at different positions in the time domain. For example, within a monitoring cycle, there are (M1+M2) monitoring times, of which M1 monitoring times belong to the first set of monitoring times and M2 monitoring times belong to the second set of monitoring times.
[0187] In a first possible implementation, the first set of monitoring times and the second set of monitoring times correspond to different receiver types (or terminal device types).
[0188] As an example, the receiver type includes a first type of receiver and a second type of receiver, the first group of monitoring times corresponds to the first type of receiver, and the second group of monitoring times corresponds to the second type of receiver. In other words, the monitoring time of the first type of receiver belongs to the first group of monitoring times, and the monitoring time of the second type of receiver belongs to the second group of monitoring times. For a terminal device, if the terminal device has a first type of receiver, the terminal device monitors the wake-up signal within at least one monitoring time in the first group of monitoring times; if the terminal device has a second type of receiver, the terminal device monitors the wake-up signal within at least one monitoring time in the second group of monitoring times. The terminal device can determine the corresponding monitoring time according to its own receiver type; alternatively, the network device can also determine the monitoring time according to the receiver type of the terminal device and indicate the corresponding monitoring time to the terminal device.
[0189] Regarding the first type of receiver and the second type of receiver, there are at least the following possible situations.
[0190] In a first possible scenario, the first type of receiver is an OFDM receiver, and the second type of receiver is an OOK receiver; or, the first type of receiver is an OOK receiver, and the second type of receiver is an OFDM receiver.
[0191] In the second possible scenario, the first type of receiver has two I / Q paths (i.e., two branches), and the second type of receiver has one path (i.e., one branch); or, the first type of receiver has one path (i.e., one branch), and the second type of receiver has two I / Q paths (i.e., two branches).
[0192] In a third possible scenario, the first type of receiver is a coherent receiver, and the second type of receiver is a non-coherent receiver; or, the first type of receiver is a non-coherent receiver, and the second type of receiver is a coherent receiver.
[0193] In the fourth possible scenario, the first type of receiver is a coherent receiver with I / Q two-paths, and the second type of receiver is a non-coherent receiver without I / Q two-paths; or, the first type of receiver is a non-coherent receiver without I / Q two-paths, and the second type of receiver is a coherent receiver with I / Q two-paths.
[0194] In a fifth possible scenario, the first type of receiver can receive complex signals, while the second type of receiver cannot receive complex signals (such as the second type of receiver receives real signals); or, the first type of receiver cannot receive complex signals (such as the first type of receiver receives real signals), while the second type of receiver can receive complex signals.
[0195] In a sixth possible scenario, the first type of receiver receives signals in an energy detection manner, and the second type of receiver can receive signals in multiple manners; or, the first type of receiver can receive signals in multiple manners, and the second type of receiver receives signals in an energy detection manner.
[0196] The seventh possible scenario is that the first type of receiver can receive OFDM signals, but the second type of receiver cannot receive OFDM signals (such as the second type of receiver receives OOK signals); or, the first type of receiver cannot receive OFDM signals (such as the first type of receiver receives OOK signals), but the second type of receiver can receive OFDM signals.
[0197] In a second possible implementation, the first set of monitoring times and the second set of monitoring times correspond to different receiving modes. Specifically, assuming that the terminal device includes at least two receiving modes, the terminal device can monitor the wake-up signal in different receiving modes, and the time required to obtain complete information in the wake-up signal when the terminal device monitors the wake-up signal in different receiving modes may be different.
[0198] Among them, the receiving mode can also be replaced by any of the following: working mode, receiving mode, demodulation mode, etc. The naming does not limit the protection scope of the embodiments of this application.
[0199] As an example, the receiving mode includes a first receiving mode and a second receiving mode, the first group of monitoring times corresponds to the first receiving mode, and the second group of monitoring times corresponds to the second receiving mode. In other words, the monitoring time of the wake-up signal in the first receiving mode belongs to the first group of monitoring times, and the monitoring time of the wake-up signal in the second receiving mode belongs to the second group of monitoring times. For a terminal device, if the terminal device is in the first receiving mode when monitoring the wake-up signal, or the terminal device adopts (or selects) the first receiving mode to monitor the wake-up signal, then the monitoring time of the terminal device belongs to the first group of monitoring times, that is, the terminal device monitors the wake-up signal within at least one monitoring time in the first group of monitoring times; if the terminal device is in the second receiving mode when monitoring the wake-up signal, or the terminal device adopts (or selects) the second receiving mode to monitor the wake-up signal, then the monitoring time of the terminal device belongs to the second group of monitoring times, that is, the terminal device monitors the wake-up signal within at least one monitoring time in the second group of monitoring times. The terminal device can determine the corresponding monitoring time according to its own receiving mode; or the network device can also determine the monitoring time according to the receiving mode of the terminal device and indicate the corresponding monitoring time to the terminal device.
[0200] Regarding the first receiving mode and the second receiving mode, there are at least the following possible situations.
[0201] In a first possible scenario, the first receiving mode is an OFDM mode and the second receiving mode is an OOK mode; or, the first receiving mode is an OOK mode and the second receiving mode is an OFDM mode. When the terminal device is in the OFDM mode, the terminal device receives signals in a manner similar to that of an OFDM receiver, or the terminal device receives an OFDM signal; when the terminal device is in the OOK mode, the terminal device receives signals in a manner similar to that of an OOK receiver, or the terminal device receives an OOK signal.
[0202] In the second possible scenario, the first receiving mode is an I / Q two-way (i.e., two branches) mode, and the second receiving mode is a one-way (i.e., one branch) mode; or, the first receiving mode is a one-way (i.e., one branch) mode, and the second receiving mode is an I / Q two-way (i.e., two branches) mode. When the terminal device is in the I / Q two-way mode, the terminal device can receive signals through both the I and Q channels. When the terminal device is in the one-way mode, the terminal device receives signals through the one channel.
[0203] In a third possible scenario, the first receiving mode is a coherent mode and the second receiving mode is a non-coherent mode; or, alternatively, the first receiving mode is a non-coherent mode and the second receiving mode is a coherent mode. When the terminal device is in the coherent mode, it receives signals in a manner similar to that of a coherent receiver; when the terminal device is in the non-coherent mode, it receives signals in a manner similar to that of a non-coherent receiver.
[0204] In a fourth possible scenario, the first receiving mode is a coherent mode with I / Q channels, and the second receiving mode is a non-coherent mode without I / Q channels; or, the first receiving mode is a non-coherent mode without I / Q channels, and the second receiving mode is a coherent mode with I / Q channels. When the terminal device is in the coherent mode with I / Q channels, the terminal device can receive signals through the I and Q channels in a manner similar to a coherent receiver. When the terminal device is in the non-coherent mode without I / Q channels, the terminal device receives signals through one channel in a manner similar to a non-coherent receiver.
[0205] In a fifth possible scenario, when the terminal device is in the first receiving mode, the terminal device receives a complex signal; when the terminal device is in the second receiving mode, the terminal device cannot receive a complex signal (e.g., the terminal device receives a real signal). Alternatively, when the terminal device is in the second receiving mode, the terminal device receives a complex signal; when the terminal device is in the first receiving mode, the terminal device cannot receive a complex signal (e.g., the terminal device receives a real signal).
[0206] In a sixth possible scenario, when the terminal device is in the first receiving mode, the terminal device receives signals using energy detection; when the terminal device is in the second receiving mode, the terminal device can receive signals in multiple modes. Alternatively, when the terminal device is in the second receiving mode, the terminal device receives signals using energy detection; when the terminal device is in the first receiving mode, the terminal device can receive signals in multiple modes.
[0207] The above two implementations are for illustration only, and the embodiments of the present application are not limited thereto. For example, multiple groups of monitoring time may also be divided according to other attributes.
[0208] Further optionally, method 1000 further includes: the terminal device transmitting capability information, where the capability information indicates the type of the terminal device. Specifically, before the terminal device monitors for the wake-up signal, the capability information may be reported to the network device. In this way, the network device can determine a corresponding monitoring time for the terminal device based on the capability information of the terminal device and then transmit the wake-up signal at the corresponding monitoring time. In addition, the network device may also indicate the corresponding monitoring time to the terminal device, so that the terminal device monitors for the wake-up signal at an appropriate monitoring time.
[0209] Further optionally, the method 1000 further includes: the terminal device sending indication information #1, where the indication information #1 indicates a receiving mode of the terminal device. Three possible examples are described below.
[0210] In one example, a terminal device sends indication information #1 to a network device, indicating whether the terminal device's receiving mode is the first receiving mode or the second receiving mode. The network device directly determines the corresponding monitoring time for the terminal device based on the receiving mode indicated by the terminal device, and then sends a wake-up signal at the corresponding monitoring time. Alternatively, the network device may indicate the corresponding monitoring time to the terminal device, so that the terminal device monitors for the wake-up signal at the appropriate monitoring time.
[0211] In another example, the terminal device sends indication information #1 to the network device, where the indication information #1 indicates that the receiving mode of the terminal device is the first receiving mode or the second receiving mode, and the network device sends confirmation information (or response information, or notification information, or indication information) to the terminal device to notify the terminal device that the network device has successfully received the indication information #1, or to notify the terminal device that it can monitor the wake-up signal using the receiving mode indicated by the indication information #1. Furthermore, the network device can also determine the corresponding monitoring time of the terminal device based on the receiving mode indicated by the terminal device, and then send the wake-up signal at the corresponding monitoring time. In addition, the network device can also indicate the corresponding monitoring time to the terminal device, so that the terminal device monitors the wake-up signal at the appropriate monitoring time.
[0212] In another example, the terminal device sends indication information #1 to the network device, where indication information #1 indicates that the receiving mode of the terminal device includes the first receiving mode or the second receiving mode, or indication information #1 indicates that the type of the terminal device is an OFDM receiver; after receiving indication information #1, the network device sends indication information #2 to the terminal device, where indication information #2 indicates that the receiving mode of the terminal device is the first receiving mode or the second receiving mode. Furthermore, optionally, the terminal device also sends confirmation information (or response information, or notification information, or indication information) to the network device to indicate whether it agrees to monitor the wake-up signal through the receiving mode indicated by the network device. Among them, the OFDM receiver can also be replaced by any of the following: a receiver with I / Q two channels, a coherent receiver, a coherent receiver with I / Q two channels, a receiver that can receive complex signals, and a receiver that can receive OFDM signals.
[0213] Aspect 2: The positional relationship between the first set of monitoring time and the second set of monitoring time.
[0214] Optionally, the positions of the first set of monitoring times and the second set of monitoring times include the following two schemes:
[0215] Option 1: The first set of monitoring time and / or the second set of monitoring time are concentrated at different times.
[0216] In scheme 2, the first set of monitoring time and the second set of monitoring time appear alternately.
[0217] The above two solutions are introduced in detail below.
[0218] Solution 1: The first and / or second monitoring groups are concentrated at different times. Based on this solution, taking the example of different receiver types corresponding to the first and second monitoring groups, the monitoring times corresponding to different types of receivers are concentrated at different times.
[0219] Optionally, there is no second monitoring time between the M1 first monitoring times, and / or there is no first monitoring time between the M2 second monitoring times.
[0220] Refer to Figure 11, which is a schematic diagram applicable to Solution 1 as an example. As shown in Figure 11, in one monitoring cycle, the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, and the first group of monitoring times and the second group of monitoring times are respectively concentrated at different times. As shown in Figure 11, there is no second monitoring time between the M1 first monitoring times in the first group of monitoring times; and there is no first monitoring time between the M2 second monitoring times in the second group of monitoring times. Specifically, any first monitoring time in the first group of monitoring times is before any second monitoring time in the second group of monitoring times. In this way, it can be achieved that the first group of monitoring times and the second group of monitoring times are respectively concentrated at different times.
[0221] It is understandable that in actual communication, considering the monitoring offset value, the first monitoring time in the first set of monitoring times and the second monitoring time in the second set of monitoring times may partially overlap. This will be explained below with reference to FIG12.
[0222] See FIG. 12 , which is another schematic diagram applicable to Solution 1 as an example.
[0223] As shown in (a) in Figure 12, the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, and there is no second monitoring time between the M1 first monitoring times, and there is a first monitoring time between the M2 second monitoring times. Specifically, the M1 first monitoring times have a monitoring offset value, that is, the M1 first monitoring times are offset from the starting position by at least one time domain unit (such as the timing of the wake-up signal), then due to the existence of the monitoring offset value, the positions of the M1 first monitoring times and the M2 second monitoring times in the time domain are: first a second monitoring time appears, then M1 first monitoring times, and then (M2-1) second monitoring times. In this case, it is still possible to achieve that the M1 first monitoring times appear concentrated in a period of time.
[0224] As shown in (b) in Figure 12, the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, and there is a second monitoring time between the M1 first monitoring times, and there is no first monitoring time between the M2 second monitoring times. Specifically, the M2 second monitoring times have a monitoring offset value, that is, the M2 second monitoring times are offset from the starting position by at least one time domain unit (such as the timing of the wake-up signal), then due to the existence of the monitoring offset value, the positions of the M1 first monitoring times and the M2 second monitoring times in the time domain are: first a first monitoring time appears, then M2 second monitoring times, and then (M1-1) first monitoring times. In this case, it is still possible to achieve that the M2 second monitoring times appear concentrated in a period of time.
[0225] The following introduces the relevant scheme for the interval between two adjacent monitoring times applicable to scheme 1.
[0226] The interval between two adjacent monitoring times may be the interval between the start position of the previous monitoring time and the start position of the next monitoring time; or it may be the interval between the end position of the previous monitoring time and the end position of the next monitoring time.
[0227] In one example, the intervals between two adjacent monitoring times in at least two groups of monitoring times are equal. In other words, within a monitoring cycle, the intervals between each two adjacent monitoring times are equal. For example, in (M1+M2) monitoring times, the time intervals between the starting positions of two adjacent monitoring times are equal, wherein the (M1+M2) monitoring times include M1 first monitoring times and M2 second monitoring times. As shown in Figure 11, the intervals between each two adjacent monitoring times in (M1+M2) monitoring times are equal.
[0228] In another example, the intervals between two adjacent first monitoring times are equal, and / or the intervals between two adjacent second monitoring times are equal. Specifically, in Solution 1, the intervals between each two adjacent first monitoring times in the first set of monitoring times are equal, and / or the intervals between each two adjacent second monitoring times in the second set of monitoring times are equal.
[0229] In addition, the interval between the end position of the previous monitoring time and the start position of the next monitoring time can be equal to 0 or greater than 0. For example, for (M1+M2) monitoring times, the interval between the end position of the previous monitoring time and the start position of the next monitoring time can be equal to 0 or greater than 0. In one example, the interval between the end position of the previous monitoring time and the start position of the next monitoring time is greater than 0, as shown in (a) of Figure 11. In another example, the interval between the end position of the previous monitoring time and the start position of the next monitoring time is equal to 0, as shown in (b) of Figure 11.
[0230] Solution 2: The first set of monitoring times and the second set of monitoring times appear alternately. Based on this solution, it can be designed that within one monitoring cycle, the first monitoring time in the first set of monitoring times and the second monitoring time in the second set of monitoring times appear alternately.
[0231] Specifically, after receiving the wake-up signal, the terminal device puts the main circuit in / switches to the on state and receives paging. For example, paging can be received on a predefined paging occasion (PO). Among them, PO can be determined based on the UE ID, and the UE ID can be determined based on the 5G system architecture evolution (SAE) temporary mobile station identifier (5G-S-TMSI). In other words, PO does not take into account the receiver type or receiving mode. The following situation may occur: some terminal devices are closer to their corresponding PO, but some terminal devices are farther away from their corresponding PO. This will increase the average delay, that is, after the terminal device receives the wake-up signal, it will have to wait for a longer time on average to wait for its own PO and then receive the paging.
[0232] See Figure 13, which illustrates a wake-up signal and a page order (PO). During a monitoring cycle, some devices are closer to their corresponding POs, resulting in lower latency. This means the devices can wait a shorter time to receive their POs after receiving the wake-up signal. Other devices are farther away from their corresponding POs, leading to increased latency and requiring longer wait times before receiving their POs and receiving page calls.
[0233] Based on this, Solution 2 can be used to achieve a more even distribution of the first and second monitoring times in the time domain within a monitoring cycle. This can reduce the occurrence of the above situation, reduce the average latency, and improve user experience.
[0234] Optionally, there is a second monitoring time between the M1 first monitoring times, and there is a first monitoring time between the M2 second monitoring times. In other words, at least one of the M1 first monitoring times is located between the M2 second monitoring times, and at least one of the M2 second monitoring times is located between the M1 first monitoring times.
[0235] Further optionally, the M1 first monitoring times include m1 groups of first monitoring times, each group of first monitoring times including at least one first monitoring time, and the M2 second monitoring times include m2 groups of second monitoring times, each group of second monitoring times including at least one second monitoring time, wherein the m1 groups of first monitoring times and the m2 groups of second monitoring times alternate in time domain positions. In other words, there is a group of second monitoring times between every two groups of first monitoring times, and / or there is a group of first monitoring times between every two groups of second monitoring times. m1 and m2 are integers greater than 1.
[0236] Refer to Figure 14, which is a schematic diagram applicable to Scheme 2 as an example. As shown in Figure 14, in one monitoring cycle, the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, and the first group of monitoring times and the second group of monitoring times appear alternately. Specifically, M1 first monitoring times include m1 groups of first monitoring times, and each group of first monitoring times includes 2 first monitoring times. In other words, every 2 first monitoring times are considered to be a group of first monitoring times; M2 second monitoring times include m2 groups of second monitoring times, and each group of second monitoring times includes 1 second monitoring time. As shown in Figure 14, for every group of first monitoring times that appears, there is a group of second monitoring times. In other words, for every 2 first monitoring times that appear, there is 1 second monitoring time.
[0237] Among them, in the m1 group of first monitoring times, the number of first monitoring times contained in each group of first monitoring times is greater than or equal to 1, and the number of first monitoring times contained in each group of first monitoring times can be the same or different, without limitation. Similarly, in the m2 group of second monitoring times, the number of second monitoring times contained in each group of second monitoring times is greater than or equal to 1, and the number of second monitoring times contained in each group of second monitoring times can be the same or different, without limitation.
[0238] The following describes the scheme for the interval between two adjacent monitoring times applicable to Scheme 2. Regarding the interval between two adjacent monitoring times, refer to the description in Scheme 1 and will not be repeated here.
[0239] In one example, the intervals between two adjacent monitoring times in at least two groups of monitoring times are equal. As shown in FIG14 , the intervals between each two adjacent monitoring times in the (M1+M2) monitoring times are equal.
[0240] In another example, the intervals between two adjacent groups of first monitoring times in group m1 are equal, and / or the intervals between two adjacent groups of second monitoring times in group m2 are equal. As shown in FIG14 , for the first group of monitoring times, every two first monitoring times can be considered as a group of first monitoring times, and the intervals between two adjacent groups of first monitoring times are the same. For another example, for the second group of monitoring times, the intervals between two adjacent second monitoring times are the same.
[0241] In addition, the interval between the end position of the previous monitoring time and the start position of the next monitoring time can be equal to 0 or greater than 0. For example, for (M1+M2) monitoring times, the interval between the end position of the previous monitoring time and the start position of the next monitoring time can be equal to 0 or greater than 0. In one example, the interval between the end position of the previous monitoring time and the start position of the next monitoring time is greater than 0, as shown in (a) of Figure 14. In another example, the interval between the end position of the previous monitoring time and the start position of the next monitoring time is equal to 0, as shown in (b) of Figure 14.
[0242] The above describes Scheme 1 and Scheme 2. It should be understood that the above are illustrative examples and the embodiments of the present application are not limited thereto. Any variations of the above schemes are applicable to the embodiments of the present application. For example, taking Scheme 2 as an example, for every x1 first monitoring times, x2 second monitoring times may occur, where x1 and x2 are integers greater than or equal to 1, and x1 is less than M1, and x2 is less than M2.
[0243] The positional relationship between the first group of monitoring times and the second group of monitoring times is introduced above in conjunction with aspect 2. The length of the monitoring time in the first group of monitoring times and the second group of monitoring times is introduced below in conjunction with aspect 3.
[0244] Aspect 3: The length of the monitoring time in the first group of monitoring time and the second group of monitoring time.
[0245] In a first possible implementation, the first monitoring time and the second monitoring time have the same length. This allows for unified configuration of the length of the monitoring time for the first and second groups of monitoring times, simplifying configuration and saving signaling overhead associated with indicating the length of the monitoring time.
[0246] As shown in FIG. 11 to FIG. 14 , the lengths of the monitoring times in the first group of monitoring times and the second group of monitoring times are the same.
[0247] In a second possible implementation, the first monitoring time and the second monitoring time are different in length. Based on this approach, appropriate lengths of monitoring time can be configured for different groups of monitoring time according to actual conditions, thereby minimizing resource waste.
[0248] Further optionally, in the group corresponding to the OFDM receiver, the length of the monitoring time is shorter; or, in the group corresponding to the OFDM mode, the length of the monitoring time is shorter. As mentioned above, the OFDM receiver may be able to obtain complete information in a shorter time than the OOK receiver. Therefore, the length of the monitoring time corresponding to the OFDM receiver or the OFDM mode can be made shorter, further reducing the resource overhead of the wake-up signal. Among them, the OFDM receiver can also be replaced by any of the following: a receiver with I / Q two-way, a coherent receiver, a coherent receiver with I / Q two-way, a receiver that can receive complex signals, and a receiver that can receive OFDM signals. The OFDM mode can also be replaced by any of the following: an I / Q two-way mode, a coherent mode, a coherent mode with I / Q two-way, a receiving mode that can receive complex signals, and a receiving mode that can receive OFDM signals. For details, please refer to the relevant description in the first aspect, which will not be repeated here. The following examples are explained using OFDM receivers and OOK receivers as examples.
[0249] Referring to Figure 15, as an example, Figure 15 is a schematic diagram of the monitoring time length applicable to an embodiment of the present application. Assume that the first group of monitoring times corresponds to an OFDM receiver and the second group of monitoring times corresponds to an OOK receiver. As shown in (a) of Figure 15, compared to (a) in Figure 11, in one monitoring cycle, the length of the first monitoring time in the first group of monitoring times is shorter than the length of the second monitoring time in the second group of monitoring times. As shown in (b) of Figure 15, compared to (b) in Figure 11, in one monitoring cycle, the length of the first monitoring time in the first group of monitoring times is shorter than the length of the second monitoring time in the second group of monitoring times.
[0250] Referring to Figure 16, as an example, Figure 16 is another schematic diagram of the monitoring time length applicable to an embodiment of the present application. Assume that the first group of monitoring times corresponds to an OFDM receiver and the second group of monitoring times corresponds to an OOK receiver. As shown in (a) of Figure 16, compared to (a) in Figure 14, in one monitoring cycle, the length of the first monitoring time in the first group of monitoring times is shorter than the length of the second monitoring time in the second group of monitoring times. As shown in (b) of Figure 16, compared to (b) in Figure 14, in one monitoring cycle, the length of the first monitoring time in the first group of monitoring times is shorter than the length of the second monitoring time in the second group of monitoring times.
[0251] Furthermore, the interval between the end position of the previous monitoring time and the start position of the next monitoring time can be greater than 0, as shown in Figure 11 (a), Figure 14 (a), Figure 15, and Figure 16. Alternatively, the interval between the end position of the previous monitoring time and the start position of the next monitoring time can be equal to 0, that is, the two monitoring times are connected, as shown in Figure 11 (b), Figure 14 (b), and Figures 17 and 18. In this way, the wake-up signal can occupy all resources as much as possible to avoid resource waste.
[0252] Referring to Figure 17, as an example, Figure 17 is a schematic diagram of a case where the interval between the end position of the previous monitoring time and the starting position of the next monitoring time is 0, which is applicable to an embodiment of the present application. As shown in Figure 17, in a monitoring cycle, the length of the first monitoring time is shorter than the length of the second monitoring time. And compared to Figure 15, the monitoring times can be connected, that is, the interval between the end position of the previous monitoring time and the starting position of the next monitoring time is 0. In this way, it is possible to avoid the situation where the interval between the end position of the previous monitoring time and the starting position of the next monitoring time is too large and the resources of the interval position cannot be effectively utilized. By designing the interval between the end position of the previous monitoring time and the starting position of the next monitoring time to be 0, waste of resources can be avoided.
[0253] Referring to FIG. 18 , as an example, FIG. 18 is another schematic diagram applicable to an embodiment of the present application in which the interval between the end position of the previous monitoring time and the start position of the next monitoring time is zero. As shown in FIG. 18 , within a monitoring cycle, the length of the first monitoring time is shorter than the length of the second monitoring time. Furthermore, compared to FIG. 16 , the monitoring times can be connected, that is, the interval between the end position of the previous monitoring time and the start position of the next monitoring time is zero.
[0254] The above describes the location and length of the first group of monitoring time and the second group of monitoring time. The following describes the index (or number, identification) of the monitoring time in conjunction with aspect 4.
[0255] Aspect 4: monitoring time index.
[0256] Optionally, the index of the monitoring time is related to at least one of the following: UE ID, M1, M2.
[0257] Wherein, UE ID represents the identification of the terminal device. As an example, the UE ID is determined based on the temporary mobile subscriber identity (TMSI). Wherein, TMSI can be a 5G system architecture evolution (SAE) temporary mobile station identifier (5G SAE temporary mobile station identifier, 5G-S-TMSI), or a future communication system temporary mobile user identifier, such as a 6G SAE TMSI (6G-S-TMIS); or it can also be other identifiers that can identify or distinguish users, which is not limited.
[0258] For example, the UE ID is several bits in the TMSI (such as 5G-S-TMSI), such as the lowest several bits, the highest several bits, or the middle several bits, which is not limited.
[0259] In a first possible implementation, the index of the monitoring time satisfies Formula 1 and Formula 2.
[0260] The index (index1) of the monitoring time included in the first group of monitoring time satisfies: index1 = UE ID mod M1 Formula 1
[0261] The index (index2) of the monitoring time included in the second group of monitoring time satisfies: index2=(UE ID mod M2)+M1 Formula 2
[0262] As an example, this approach may be applicable to the above-mentioned solution 1. As an example, the above-mentioned formulas 1 and 2 may be predefined, or preconfigured, or indicated by the network device.
[0263] For a certain terminal device, if the monitoring time of the terminal device belongs to the first group of monitoring time, then the terminal device determines the index of the monitoring time based on formula 1; if the monitoring time of the terminal device belongs to the second group of monitoring time, then the terminal device determines the index of the monitoring time based on formula 2.
[0264] The terminal device can determine whether its monitoring time belongs to the first group of monitoring time or the second group of monitoring time based on the type of receiver or receiving mode to which it belongs. In combination with the description in aspect 1, for example, for a certain terminal device, if the terminal device has a first type of receiver, or the terminal device is in the first receiving mode when monitoring the wake-up signal, then the monitoring time of the terminal device belongs to the first group of monitoring time, so the terminal device determines the index of the monitoring time based on formula 1. If the terminal device has a second type of receiver, or the terminal device is in the second receiving mode when monitoring the wake-up signal, then the monitoring time of the terminal device belongs to the second group of monitoring time, so the terminal device determines the index of the monitoring time based on formula 2.
[0265] For example, taking Figure 11 as an example, as shown in Figure 11, assuming that the indexes of the (M1+M2) monitoring times are numbered from 0, then the value range of the index of the (M1+M2) monitoring times is: [0, (M1+M2)-1], and further, the value range of the index of the monitoring time in the first group of monitoring times is: [0, M1-1], and the value range of the index of the monitoring time in the second group of monitoring times is: [M1, (M1+M2)-1]. Therefore, the index of the monitoring time in the first group of monitoring times is UE ID mod M1, and the index of the monitoring time in the second group of monitoring times is (UE ID mod M2)+M1.
[0266] The above formulas 1 and 2 are examples and are variations of the formulas, and are also applicable to the embodiments of the present application. For example, the above formulas 1 and 2 can be varied as follows: index1 = (UE ID mod M1) + M2; index2 = UE ID mod M2.
[0267] In a second possible implementation, the index of the monitoring time satisfies Formula 3 and Formula 4.
[0268] The index (index1) of the monitoring time included in the first group of monitoring time satisfies: index1 = UE ID mod M1 + floor ((UE ID * M2 / M1) mod M2) Formula 3
[0269] The index (index2) of the monitoring time included in the second group of monitoring time satisfies: index2=(UE ID mod M2)+floor(((UE ID*M2)+1)*M1 / M2) Formula 4
[0270] As an example, this approach may be applicable to the above-mentioned solution 2. As an example, the above-mentioned formulas 3 and 4 may be predefined, or preconfigured, or indicated by the network device.
[0271] For a certain terminal device, if the monitoring time of the terminal device belongs to the first group of monitoring time, then the terminal device determines the index of the monitoring time based on formula 3; if the monitoring time of the terminal device belongs to the second group of monitoring time, then the terminal device determines the index of the monitoring time based on formula 4.
[0272] The terminal device can determine whether its monitoring time belongs to the first group of monitoring times or the second group of monitoring times based on the type of receiver or receiving mode to which it belongs. In combination with the description in aspect 1, for example, for a certain terminal device, if the terminal device has a first type of receiver, or the terminal device is in the first receiving mode when monitoring the wake-up signal, then the monitoring time of the terminal device belongs to the first group of monitoring times, and therefore the terminal device determines the index of the monitoring time based on formula 3. If the terminal device has a second type of receiver, or the terminal device is in the second receiving mode when monitoring the wake-up signal, then the monitoring time of the terminal device belongs to the second group of monitoring times, and therefore the terminal device determines the index of the monitoring time based on formula 4.
[0273] For example, assuming that M1=4 and M2=2, the index of the monitoring time calculated based on the above formula and the UE ID is shown in Table 1.
[0274] Table 1
[0275] Taking Table 1 as an example, if the UE ID of the terminal device is 0 and the monitoring time of the terminal device belongs to the first group of monitoring times, the calculation is performed based on the above formula 3, and the index of the calculated monitoring time is 0, that is, the terminal device monitors the wake-up signal at the monitoring time with an index of 0. If the UE ID of the terminal device is 0 and the monitoring time of the terminal device belongs to the second group of monitoring times, the calculation is performed based on the above formula 4, and the index of the calculated monitoring time is 2, that is, the terminal device monitors the wake-up signal at the monitoring time with an index of 2.
[0276] Assuming that the indexes of the (M1+M2) monitoring times are numbered sequentially starting from 0, Table 1 shows that the indexes of the first monitoring time in the first group of monitoring times are 0, 1, 3, and 4, and the indexes of the second monitoring time in the second group of monitoring times are 2 and 5. Based on this, it can be seen that by calculating based on the above formulas 3 and 4, the first group of monitoring times and the second group of monitoring times can be achieved to alternate, as shown in Figure 14.
[0277] Table 1 is an example, and the embodiments of the present application are not limited thereto. For example, the UE ID may have other values; for another example, Table 1 may also include a greater number of UE IDs and corresponding monitoring time indexes.
[0278] The above describes the index of monitoring time. The following describes the time domain resources corresponding to monitoring time. In other words, how a monitoring time index is mapped to a specific time domain resource, that is, to which time domain unit (or units) it is mapped. The time domain unit can refer to the timing of the wake-up signal mentioned above, and the following description will uniformly use the time domain unit.
[0279] Aspect 5: Time domain resources corresponding to the monitoring time.
[0280] Optionally, the starting position of the monitoring time in the time domain is related to at least one of the following: the identifier of the terminal device, the index of the monitoring time, the length of the monitoring time, M1, and M2. As mentioned above, the time domain unit can refer to the timing of the wake-up signal. Based on this, the starting position of the monitoring time in the time domain can be replaced by: the starting timing of the monitoring time in the time domain.
[0281] For details about the UE ID, please refer to the previous description and will not be repeated here.
[0282] In a first possible implementation, the index of the monitoring time and the starting position of the monitoring time in the time domain satisfy Formula 5. (N1+offset)mod T=(T div(M1+M2))*N2 Formula 5
[0283] Where N1 represents the index of the starting position of the monitoring time in the time domain, N2 is the index of the monitoring time, T is the monitoring period, and offset is a number greater than or equal to 0. Offset is also called the monitoring offset value. According to Formula 5 above, there is a monitoring time every T div(M1 + M2).
[0284] As an example, this approach can be applied to a scenario where the first monitoring time and the second monitoring time are of equal length. For example, this approach can be applied to the above-mentioned Scheme 1 and Scheme 2, such as the scenarios shown in Figure 11, Figure 14, Figure 15, or Figure 16. As an example, the above formula 5 can be predefined, preconfigured, or indicated by the network device. As an example, this approach can also be applied to a scenario where the first set of monitoring times and the second set of monitoring times are uniformly numbered.
[0285] Based on the above implementation, the terminal device can know which time domain unit(s) its monitoring time corresponds to according to the index of the monitoring time and the above formula 5, and can then monitor the wake-up signal at the corresponding position.
[0286] In a second possible implementation manner, the monitoring time is associated with a PO / paging frame (PF).
[0287] Specifically, the starting position of the monitoring time and PO / PF are associated, so that the terminal device can obtain the starting position of the monitoring time based on the association and PO / PF. As an example, this method can be applied to the above-mentioned scheme 1 and scheme 2, such as the monitoring time shown in Figure 11, or Figure 14, or Figure 15, or Figure 16. In addition, this method can also be applied to scenarios where the lengths of the first monitoring time and the second monitoring time are equal. As an example, the above-mentioned association can be predefined, or preconfigured, or indicated by a network device.
[0288] Referring to Figure 19, as an example, Figure 19 is a schematic diagram of the relationship between monitoring time and PO applicable to an embodiment of the present application. As shown in Figure 19, in a monitoring cycle (such as a paging cycle), the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, and in a monitoring cycle, there are (M1+M2) POs. Each PO has a corresponding monitoring time, so the starting position of the monitoring time can be determined based on the PO and the relationship between the monitoring time and the PO. If the starting position of the monitoring time is separated from the PO corresponding to the monitoring time by a certain time length, the starting position of the monitoring time can be determined based on the position of the PO and the time length. As an example, M1+M2=N*Ns. Wherein, N represents the number of PFs in a paging cycle, and Ns is the number of POs in a PF. N and Ns can be predefined, or preconfigured, or indicated by a network device. Figure 19 is only an example, and the embodiment of the present application does not limit the relationship between the length of the PO and the length of the monitoring time. For example, the PO length may be equal to the monitoring time length; or the PO length may be less than the monitoring time length; or the PO length may be less than the monitoring time length.
[0289] In a third possible implementation, the index of the monitoring time and the starting position of the monitoring time in the time domain satisfy Formula 6 and Formula 7.
[0290] The index of the monitoring time in the first group of monitoring time and the starting position of the monitoring time in the time domain satisfy: (N1+offset)mod T=L1*N3 Formula 6
[0291] The index of the monitoring time in the second group of monitoring time and the starting position of the monitoring time in the time domain satisfy: (N2+offset+M1*L1)mod T=L2*N4 Formula 7
[0292] Wherein, L1 represents the length of the monitoring time in the first group of monitoring times (i.e., the length of the first monitoring time), L2 represents the length of the monitoring time in the second group of monitoring times (i.e., the length of the second monitoring time); N1 represents the index of the starting position of the monitoring time in the first group of monitoring times (i.e., the first monitoring time) in the time domain, N3 represents the index of the monitoring time in the first group of monitoring times (i.e., the first monitoring time); N2 represents the index of the starting position of the monitoring time in the second group of monitoring times (i.e., the second monitoring time) in the time domain; N4 represents the index of the monitoring time in the second group of monitoring times (i.e., the second monitoring time); offset is a number greater than or equal to 0; and T is the monitoring period. As an example, the above formulas 6 and 7 can be predefined, preconfigured, or indicated by the network device.
[0293] As an example, this approach can be applied to scenarios where the first and second monitoring times are of different lengths, the interval between the end of the previous monitoring time and the start of the next monitoring time is zero, and the groups of monitoring times appear together. For example, this approach can be applied to a scenario similar to that shown in Figure 17. As an example, this approach can also be applied to scenarios where the first and second groups of monitoring times are uniformly numbered.
[0294] In a fourth possible implementation, the index of the monitoring time and the starting position of the monitoring time in the time domain satisfy Formula 8. (N1+offset)mod T=L1*K1+L2*K2 Formula 8
[0295] Where N1 represents the index of the starting position of the monitoring time in the time domain; offset is a number greater than or equal to 0; T is the monitoring period; L1 represents the length of the monitoring time in the first set of monitoring times (i.e., the length of the first monitoring time), and L2 represents the length of the monitoring time in the second set of monitoring times (i.e., the length of the second monitoring time); K1 and K2 are integers greater than or equal to 0. For other parameters, please refer to the previous description and will not be repeated here.
[0296] By way of example, this approach can be applied to scenarios where the first and second monitoring times are of different lengths, the interval between the end of the previous monitoring time and the start of the next monitoring time is zero, and the groups of monitoring times appear alternately. For example, this approach can be applied to a scenario similar to that shown in FIG18 . By way of example, this approach can also be applied to scenarios where the first and second groups of monitoring times are uniformly numbered.
[0297] As an example, K1 is related to the position of the current monitoring time in the first group of monitoring times, and K2 is related to the position of the current monitoring time in the second group of monitoring times.
[0298] As an example, (K1+1) represents “the number of first monitoring times from the 0th monitoring time to the current monitoring time”, and K2 represents “the number of second monitoring times from the 0th monitoring time to the current monitoring time”.
[0299] As an example, K1 and K2 have an association relationship. The association relationship between K1 and K2 can exist in the form of a table, function, text, or string, such as in storage or transmission. The association relationship between K1 and K2 can be predefined, preconfigured, or indicated by a network device, and is not limited to this. For example, K1 and K2 satisfy: K2 / (K1+1)≤M2 / M1.
[0300] As an example, K1=UE ID mod M1+α, where α is greater than or equal to 0.
[0301] As an example, K2=UE ID mod M2+β, where β is greater than or equal to 0.
[0302] It is understood that in some of the above formulas, some parameters can take the value of 0. When a parameter takes the value of 0, there are two interpretations: one is that the formula includes the parameter, and the parameter takes the value of 0; the other is that the formula does not include the parameter, that is, the formula does not contain the parameter. For example, K1 = UE ID mod M1 + α. When α is 0, the formula for K1 can be excluding the parameter α, that is, K1 = UE ID mod M1; or K1 = UE ID mod M1 + α, with α equal to 0. For another example, K2 = UE ID mod M2 + β. When β is 0, the formula for K2 can be excluding the parameter β, that is, K2 = UE ID mod M2; or K2 = UE ID mod M2 + β, with β equal to 0.
[0303] It is also understood that in various embodiments of the present application, "monitoring" may be replaced by "detecting" or "reading" or "receiving." For example, "monitoring a reference signal" may be replaced by "detecting a reference signal" or "reading a reference signal" or "receiving a reference signal."
[0304] It will also be understood that in some of the above embodiments, at least two groups of monitoring times are primarily used as examples for illustration, and this is not limiting. In other words, the definition of "group" may not be necessary. For example, M1 first monitoring times and M2 second monitoring times may be designed, and the M1 first monitoring times and M2 second monitoring times may correspond to different receiver types or reception modes.
[0305] It is also understood that in some of the above embodiments, two groups of monitoring times (i.e., a first group of monitoring times and a second group of monitoring times) are mainly used as examples for illustration, and the embodiments of the present application are not limited thereto. For example, a monitoring cycle includes more than two groups of monitoring times, and different groups of monitoring times correspond to different terminal device types or different receiving modes.
[0306] It can also be understood that in some of the above embodiments, the main circuit and the wake-up circuit are mainly used as examples for illustrative explanation, and the present application is not limited to this. For example, "wake-up circuit" can also be replaced by "first module", or can also be replaced by "wake-up link", or can also be replaced by "in the first state", or can also be replaced by "in the first mode". For example, "the terminal device uses the wake-up circuit to receive a signal" can also be replaced by "the terminal device receives a signal through the first module or the terminal device receives a signal on the wake-up link". "Main circuit" can also be replaced by "second module", or can also be replaced by "main link", or can also be replaced by "in the second state", or can also be replaced by "in the second mode". For example, "the terminal device uses the main circuit to receive a signal" can also be replaced by "the terminal device receives a signal through the second module or the terminal device receives a signal on the main link".
[0307] It can also be understood that the formulas involved in the various embodiments of the present application are only exemplary and do not limit the scope of protection of the embodiments of the present application. In the process of calculating the above-mentioned parameters, the calculation can also be performed according to the above formula, or based on the deformation of the above formula, or according to other methods to meet the results of the formula calculation. For example, in some cases (such as α is equal to 0), K1=UE ID mod M1+α can also be transformed into: K1=UE ID mod M1.
[0308] It can also be understood that in some of the above embodiments, the unified numbering of the first group of monitoring time and the second group of monitoring time is used as an example for illustration, and this is not limited to this. For example, each group of monitoring time can be numbered separately; for another example, each group of monitoring time with the same monitoring time length can be numbered uniformly, and each group of monitoring time with different monitoring time lengths can be numbered separately. For example, taking the first group of monitoring time and the second group of monitoring time as an example, the first group of monitoring time and the second group of monitoring time can be numbered separately. In this case, as an example, the index (index1) of the monitoring time included in the first group of monitoring time satisfies: index1 = UE ID mod M1, and the index (index2) of the monitoring time included in the second group of monitoring time satisfies: index2 = UE ID mod M2.
[0309] It is also understood that in some of the above embodiments, when "transmission" is mentioned, unless otherwise specified, transmission includes receiving and / or sending. For example, transmitting a signal may include receiving a signal and / or sending a signal.
[0310] It is also understood that in the various embodiments of the present application, the interaction between a terminal device and a network device is mainly used as an example for illustrative description, and the present application is not limited thereto. The terminal device can be replaced by a receiving device, which can be a terminal device or a network device; the network device can be replaced by a sending device, which can be a terminal device or a network device. For example, "terminal device" can be replaced by "first terminal device" and "network device" can be replaced by "second terminal device."
[0311] It can also be understood that some optional features in the various embodiments of the present application may not depend on other features in certain scenarios, and may also be combined with other features in certain scenarios, without limitation.
[0312] It can also be understood that the solutions in the various embodiments of the present application can be reasonably combined and used, and the explanations or descriptions of the various terms appearing in the embodiments can be referenced or explained with each other in the various embodiments, without limitation to this.
[0313] It can also be understood that in the above-mentioned method embodiments, the methods and operations implemented by the terminal device can also be implemented by components that can be formed by the terminal device (such as chips or circuits); in addition, the methods and operations implemented by the network device can also be implemented by components that can be formed by the network device (such as chips or circuits), without limitation.
[0314] The method provided in the embodiment of the present application is described in detail above with reference to Figures 10 to 19. Below, the apparatus provided in the embodiment of the present application is described in detail with reference to Figures 20 to 22. It should be understood that the description of the apparatus embodiment corresponds to the description of the method embodiment. Therefore, for matters not described in detail, reference can be made to the method embodiment above. For the sake of brevity, they will not be repeated here.
[0315] Referring to Figure 20 , as an example, Figure 20 is a schematic diagram of a communication device 2000 provided in an embodiment of the present application. Communication device 2000 includes a transceiver unit 2010 and a processing unit 2020. Transceiver unit 2010 can be used to implement corresponding communication functions. Transceiver unit 2010 can also be referred to as a communication interface or communication unit. Processing unit 2020 can be used to perform processing, such as determining monitoring time.
[0316] Optionally, the device 2000 may further include a storage unit, which may be used to store instructions and / or data. The processing unit 2020 may read the instructions and / or data in the storage unit so that the device implements the aforementioned method embodiment.
[0317] In a first possible design, the apparatus 2000 may be the terminal device in the aforementioned embodiment, and the apparatus 2000 may implement the steps or processes corresponding to those performed by the terminal device in the above method embodiment. The transceiver unit 2010 may be used to perform the transceiver-related operations (such as the operations of sending and / or receiving data or messages) of the terminal device in the above method embodiment, and the processing unit 2020 may be used to perform the processing-related operations of the terminal device in the above method embodiment, or operations other than transceiver (such as operations other than sending and / or receiving data or messages).
[0318] A possible implementation method is that the processing unit 2020 is used to determine the monitoring time, where the monitoring time belongs to the monitoring time in at least two groups of monitoring times, and the at least two groups of monitoring times include a first group of monitoring time and a second group of monitoring time, the first group of monitoring time includes M1 first monitoring times, and the second group of monitoring time includes M2 second monitoring times. The types of terminal devices corresponding to the first group of monitoring time and the second group of monitoring time are different, or the receiving modes corresponding to the first group of monitoring time and the second group of monitoring time are different, and M1 and M2 are integers greater than 1 or equal to 1; the transceiver unit 2010 is used to monitor the wake-up signal within the monitoring time.
[0319] In a second possible design, the apparatus 2000 may be the network device of the aforementioned embodiment, and the apparatus 2000 may implement the steps or processes corresponding to those performed by the network device in the above method embodiment. The transceiver unit 2010 may be used to perform transceiver-related operations (such as operations of sending and / or receiving data or messages) of the network device in the above method embodiment, and the processing unit 2020 may be used to perform processing-related operations of the network device in the above method embodiment, or operations other than transceiver operations (such as operations other than sending and / or receiving data or messages).
[0320] A possible implementation method is that the processing unit 2020 is used to determine the monitoring time, where the monitoring time belongs to the monitoring time in at least two groups of monitoring times, the time length of any monitoring time in at least two groups of monitoring times is greater than or equal to the time length of a wake-up signal, and at least two groups of monitoring times include a first group of monitoring times and a second group of monitoring times, the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, the types of terminal devices corresponding to the first group of monitoring times and the second group of monitoring times are different, or the receiving modes corresponding to the first group of monitoring times and the second group of monitoring times are different, and M1 and M2 are integers greater than 1 or equal to 1; the transceiver unit 2010 is used to send a wake-up signal within the monitoring time.
[0321] It should be understood that the specific process of each unit executing the above corresponding steps has been described in detail in the above method embodiment, and for the sake of brevity, it will not be repeated here.
[0322] It should also be understood that the device 2000 here is embodied in the form of a functional unit. The term "unit" here can refer to an application specific integrated circuit (ASIC), an electronic circuit, a processor (such as a shared processor, a dedicated processor or a group processor, etc.) and a memory for executing one or more software or firmware programs, a combined logic circuit and / or other suitable components that support the described functions. In an optional example, those skilled in the art will understand that the device 2000 can be specifically the communication device in the above-mentioned embodiment, and can be used to execute the various processes and / or steps corresponding to the communication device in the above-mentioned method embodiments. To avoid repetition, they will not be described here.
[0323] The apparatus 2000 of each of the above-mentioned solutions has the function of implementing the corresponding steps performed by the communication device (such as a terminal device, or a network device) in the above-mentioned method. The functions can be implemented by hardware, or by hardware executing corresponding software implementations. The hardware or software includes one or more modules corresponding to the above-mentioned functions; for example, the transceiver unit can be replaced by a transceiver (for example, the sending unit in the transceiver unit can be replaced by a transmitter, and the receiving unit in the transceiver unit can be replaced by a receiver), and other units, such as the processing unit, can be replaced by a processor to respectively perform the sending and receiving operations and related processing operations in each method embodiment.
[0324] In addition, the transceiver unit 2010 may also be a transceiver circuit (for example, may include a receiving circuit and a sending circuit), and the processing unit may be a processing circuit.
[0325] It should be noted that the device in FIG20 can be a communication device (such as a terminal device or a network device) in the aforementioned embodiment, or it can be a chip or a chip system, such as a system on a chip (SoC). The transceiver unit can be an input / output circuit or a communication interface; the processing unit can be a processor, microprocessor, or integrated circuit integrated on the chip. This is not limited here.
[0326] Referring to FIG. 21 , as an example, FIG. 21 is a schematic diagram of another communication device 2100 provided in an embodiment of the present application. The device 2100 includes a processor 2110 coupled to a memory 2120. The memory 2120 is configured to store computer programs or instructions and / or data. The processor 2110 is configured to execute the computer programs or instructions stored in the memory 2120, or read data stored in the memory 2120, to perform the methods described in the above method embodiments.
[0327] Optionally, there are one or more processors 2110 .
[0328] Optionally, the memory 2120 is one or more.
[0329] Optionally, the memory 2120 is integrated with the processor 2110 or provided separately.
[0330] Optionally, as shown in Figure 21, the device 2100 further includes a transceiver 2130, which is used to receive and / or send signals. For example, the processor 2110 is used to control the transceiver 2130 to receive and / or send signals.
[0331] As an example, the processor 2110 may have the function of the processing unit 2120 shown in FIG. 20 , the memory 2120 may have the function of a storage unit, and the transceiver 2130 may have the function of the transceiver unit 2110 shown in FIG. 20 .
[0332] As a solution, the device 2100 is used to implement the operations performed by the communication device (such as a terminal device, or a network device) in the above various method embodiments.
[0333] For example, the processor 2110 is configured to execute computer programs or instructions stored in the memory 2120 to implement relevant operations of the communication device in the above various method embodiments.
[0334] It should be understood that the processor mentioned in the embodiments of the present application may be a central processing unit (CPU), or may 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 gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor, etc.
[0335] It should also be understood that the memory mentioned in the embodiments of the present application may be a volatile memory and / or a non-volatile memory. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM). For example, RAM can be used as an external cache. By way of example and not limitation, RAM includes the following forms: static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDR SDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct rambus RAM (DR RAM).
[0336] It should be noted that when the processor is a general-purpose processor, DSP, ASIC, FPGA or other programmable logic device, discrete gate or transistor logic device, discrete hardware component, the memory (storage module) can be integrated into the processor.
[0337] It should also be noted that the memory described herein is intended to include, but is not limited to, these and any other suitable types of memory.
[0338] 22 , as an example, is a schematic diagram of a chip system 2200 provided in accordance with an embodiment of the present application. The chip system 2200 (or also referred to as a processing system) includes a logic circuit 2210 and an input / output interface 2220 .
[0339] Logic circuit 2210 may be a processing circuit within chip system 2200. Logic circuit 2210 may be coupled to a storage unit and invoke instructions within the storage unit, enabling chip system 2200 to implement the methods and functions of various embodiments of the present application. Input / output interface 2220 may be an input / output circuit within chip system 2200, outputting information processed by chip system 2200 or inputting data or signaling information to be processed into chip system 2200 for processing.
[0340] As a solution, the chip system 2200 is used to implement the operations performed by a communication device (such as a terminal device, or a network device) in the above various method embodiments.
[0341] For example, the logic circuit 2210 is used to implement the processing-related operations performed by the communication device (such as a terminal device, or a network device) in the above method embodiments; the input / output interface 2220 is used to implement the sending and / or receiving-related operations performed by the communication device (such as a terminal device, or a network device) in the above method embodiments.
[0342] An embodiment of the present application further provides a computer-readable storage medium storing computer instructions for implementing the methods executed by a communication device (such as a terminal device or a network device) in the above-mentioned method embodiments.
[0343] For example, when the computer program is executed by a computer, the computer can implement the methods performed by a communication device (such as a terminal device, or a network device) in each embodiment of the above method.
[0344] An embodiment of the present application further provides a computer program product comprising instructions, which, when executed by a computer, implement the methods performed by a communication device (such as a terminal device or a network device) in the above-mentioned method embodiments.
[0345] The present application also provides a communication system, which includes the terminal device and / or network device in the above embodiments. For example, the system includes the terminal device and network device in the embodiment of Figure 10.
[0346] The explanation of the relevant contents and beneficial effects of any of the above-mentioned devices can be referred to the corresponding method embodiments provided above, which will not be repeated here.
[0347] In the several embodiments provided in this application, it should be understood that the disclosed 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. In actual implementation, there may be other division methods, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, 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.
[0348] 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 can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. For example, the computer can be a personal computer, a server, or a network device, etc. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium. For example, the computer instructions can be transmitted from one website, computer, server or data center to another website, computer, server or data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more available media integrations. The available medium may be a magnetic medium (e.g., a floppy disk, a hard disk, a magnetic tape), an optical medium (e.g., a DVD), or a semiconductor medium (e.g., a solid state disk (SSD)). For example, the aforementioned available medium includes, but is not limited to, various media that can store program code, such as a USB flash drive, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk.
[0349] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.
Claims
1. A communication method, characterized in that: include: Determine a monitoring time, where the monitoring time belongs to a monitoring time in at least two groups of monitoring times, the at least two groups of monitoring times include a first group of monitoring times and a second group of monitoring times, the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, the first group of monitoring times and the second group of monitoring times correspond to different types of terminal devices, or the first group of monitoring times and the second group of monitoring times correspond to different receiving modes, and M1 and M2 are integers greater than 1 or equal to 1; During the monitoring time, a wake-up signal is monitored.
2. The method according to claim 1, characterized in that The method further comprises: Indication information is received, where the indication information indicates a value of M1 and / or M2.
3. The method according to claim 1 or 2, characterized in that Before monitoring the wake-up signal, the method further includes: Capability information is sent, where the capability information indicates the type or receiving mode of the terminal device.
4. A communication method, characterized in that: include: Determine a monitoring time, where the monitoring time belongs to a monitoring time in at least two groups of monitoring times, the at least two groups of monitoring times include a first group of monitoring times and a second group of monitoring times, the first group of monitoring times includes M1 first monitoring times, the second group of monitoring times includes M2 second monitoring times, the first group of monitoring times and the second group of monitoring times are different, the first group of monitoring times and the second group of monitoring times correspond to different types of terminal devices, or the first group of monitoring times and the second group of monitoring times correspond to different receiving modes, and M1 and M2 are integers greater than 1 or equal to 1; During the monitoring time, a wake-up signal is sent.
5. The method according to claim 4, characterized in that The method further comprises: Send indication information, where the indication information indicates the value of M1 and / or M2.
6. The method according to claim 4 or 5, characterized in that Before sending the wake-up signal, the method further includes: Receive capability information, where the capability information indicates the type or receiving mode of the terminal device.
7. The method according to any one of claims 1 to 6, characterized in that The starting position of the monitoring time in the time domain is related to at least one of the following: an identifier of the terminal device, an index of the monitoring time, M1, and M2.
8. The method according to any one of claims 1 to 7, characterized in that In one monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times; There is no second monitoring time between the M1 first monitoring times, and / or there is no first monitoring time between the M2 second monitoring times.
9. The method according to any one of claims 1 to 8, characterized in that In one monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times; The starting position of the first monitoring time in the time domain satisfies: (N1+offset)mod T=L1*N3; and / or, The starting position of the second monitoring time in the time domain satisfies: (N2+offset+M1*L1)mod T=L2*N4; Among them, N1 represents the index of the starting position of the first monitoring time in the time domain, N3 represents the index of the first monitoring time, N2 represents the index of the starting position of the second monitoring time in the time domain, N4 represents the index of the second monitoring time, offset is a number greater than 0 or equal to 0, T is the monitoring period, L1 is the time length of the first monitoring time, L2 is the time length of the second monitoring time, and mod represents the modulo operation.
10. The method according to any one of claims 1 to 7, characterized in that In one monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times; At least one first monitoring time among the M1 first monitoring times is located between the M2 second monitoring times, and at least one second monitoring time among the M2 second monitoring times is located between the M1 first monitoring times.
11. The method according to claim 10, characterized in that The M1 first monitoring times include m1 groups of first monitoring times, each group of first monitoring times includes at least one of the first monitoring times, the M2 second monitoring times include m2 groups of second monitoring times, each group of second monitoring times includes at least one of the second monitoring times, The first monitoring time of the m1 group and the second monitoring time of the m2 group appear alternately in the time domain, and m1 and m2 are integers greater than 1.
12. The method according to any one of claims 1 to 7, or 10 or 11, characterized in that In one monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, the second group of monitoring times includes the M2 second monitoring times, and the starting positions of the monitoring times in the time domain satisfy: (N1+offset)mod T=L1*K1+L2*K2; Among them, N1 represents the index of the starting position of the monitoring time in the time domain, offset is a number greater than 0 or equal to 0, T is the monitoring period, L1 is the time length of the first monitoring time, L2 is the time length of the second monitoring time, K1 is related to the position of the current monitoring time in the first group of monitoring times, K2 is related to the position of the current monitoring time in the second group of monitoring times, and mod represents the modulo operation.
13. The method according to claim 12, characterized in that The K1 is related to the identifier of the terminal device and / or M1; and / or, The K2 is related to the identifier of the terminal device and / or M2.
14. The method according to claim 12 or 13, characterized in that K1=UE ID mod M1+α, and / or K2=UE ID mod M2+β, where α and β are integers greater than or equal to 0.
15. The method according to any one of claims 1 to 8, or 10 or 11, characterized in that In one monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, the second group of monitoring times includes the M2 second monitoring times, and the starting positions of the monitoring times in the time domain satisfy: (N1+offset)mod T=(T div(M1+M2))*N2; Among them, N1 represents the index of the starting position of the monitoring time in the time domain, N2 is the index of the monitoring time, offset is a number greater than or equal to 0, T is the monitoring period, div represents integer division operation, and mod represents modulo operation.
16. The method according to any one of claims 1 to 8, or 10 or 11, characterized in that The monitoring time is associated with the paging occasion.
17. The method according to any one of claims 1 to 16, characterized in that The time intervals between the starting positions of two adjacent monitoring times in the at least two groups of monitoring times are equal.
18. The method according to any one of claims 1 to 17, characterized in that The length of the first monitoring time is the same as the length of the second monitoring time; or The terminal device corresponding to the first group of monitoring time is a device with an I / Q two-channel receiver, or the receiving mode corresponding to the first group of monitoring time has an I / Q two-channel receiver, and the time length of the first monitoring time is less than the time length of the second monitoring time.
19. The method according to any one of claims 1 to 18, characterized in that The monitoring time is related to at least one of the following: an identifier of the terminal device, M1, and M2.
20. The method according to any one of claims 1 to 19, characterized in that In one monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times. The index of the first monitoring time satisfies: UE ID mod M1; and / or, The index of the second monitoring time satisfies: (UE ID mod M2)+M1; Among them, UE ID represents the identifier of the terminal device, and mod represents the modulo operation.
21. The method according to any one of claims 1 to 19, characterized in that In one monitoring cycle, the first group of monitoring times includes the M1 first monitoring times, and the second group of monitoring times includes the M2 second monitoring times. The index of the first monitoring time satisfies: UE ID mod M1+floor((UE ID*M2 / M1) mod M2); and / or, The index of the second monitoring time satisfies: (UE ID mod M2)+floor(((UE ID*M2)+1)*M1 / M2); Among them, UE ID represents the identifier of the terminal device, mod represents the modulo operation, and floor represents rounding down.
22. The method according to any one of claims 1 to 21, characterized in that The duration of any one monitoring time in the at least two groups of monitoring times is greater than or equal to the duration of one wake-up signal.
23. The method according to any one of claims 1 to 22, characterized in that The first set of monitoring times is periodic, and / or the second set of monitoring times is periodic.
24. The method according to any one of claims 1 to 23, characterized in that The terminal device corresponding to the first group of monitoring time is a device with an I / Q dual-channel receiver, and the terminal device corresponding to the second group of monitoring time is an on-off keying (OOK) device; or, The receiving mode corresponding to the first group of monitoring time has I / Q two-way, and the receiving mode corresponding to the second group of monitoring time does not have I / Q two-way.
25. The method according to any one of claims 1 to 24, characterized in that The wake-up signal is used to wake up at least one terminal device or at least one terminal device group.
26. The method according to any one of claims 1 to 25, characterized in that The modulation mode of the wake-up signal is OOK modulation.
27. A communication device, characterized in that: The method comprises modules or units for executing the method according to any one of claims 1 to 26.
28. A communication device, characterized in that: The method comprises a processor configured to execute the method according to any one of claims 1 to 26.
29. A computer-readable storage medium, characterized in that The computer-readable storage medium stores a computer program or instructions, and when the computer program or instructions are executed on a communication device, the communication device is caused to perform the method according to any one of claims 1 to 26.
30. A computer program product, characterized in that The computer program product comprises a computer program or instructions for performing the method according to any one of claims 1 to 26.