Paging method and apparatus, first device, and second device

Abstract

The present application relates to the field of communications, and provides a paging method and apparatus, a first device, and a second device. The paging method comprises: a first device receives at least one piece of paging information from a second device, the at least one piece of paging information comprising at least one of the following: first paging information, used for paging a group of devices; and second paging information, used for paging one or more devices, the first paging information comprising at least one of the following: information of a target group, information for indicating that a paging type is group paging, a paging reason, and a type of device for paging, the target group comprising a first group to which the first device belongs and which is used for the group paging; and the second paging information comprising at least one of the following: information of a target device, information for indicating that the paging type is paging for one device or paging for a plurality of devices, a paging reason, and a type of device for paging.

Description

Paging method, apparatus, first device, and second device

[0001] CROSS-REFERENCE TO RELATED APPLICATIONS

[0002] This application claims priority to the Chinese patent application filed with the China Patent Office on December 25, 2023, with application number 202311799481.2 and invention name “Paging method, apparatus, first device and second device”, the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of communications, and more particularly, to a paging method, apparatus, first device, and second device. Background Art

[0004] Ambient IoT (A-IoT) is a 3GPP IoT technology. A-IoT devices are ultra-low-complexity, ultra-low-power terminals that use energy harvesting to generate power for communication. A-IoT aims to provide large-scale cellular network deployment and seamless coverage.

[0005] However, using related art paging solutions to paging large numbers of A-IoT devices suffers from low paging efficiency and flexibility, and can lead to excessive power consumption by A-IoT devices. Furthermore, there is a risk that paging will be impossible or fail due to the large number of A-IoT devices, impacting paging performance.

[0006] Therefore, there is an urgent need in the art for a paging method to improve paging efficiency, paging performance, and paging flexibility. Summary of the Invention

[0007] The embodiments of the present application provide a paging method, apparatus, first device, and second device, which can improve paging efficiency, paging performance, and paging flexibility and reduce power consumption of devices.

[0008] In a first aspect, a paging method is provided, comprising:

[0009] The first device receives at least one paging message from the second device; the at least one paging message includes at least one of the following:

[0010] The first paging information is used to page a group of devices;

[0011] Second paging information, used to page one or more devices;

[0012] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0013] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0014] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0015] In a second aspect, a paging method is provided, including:

[0016] The second device sends at least one paging message to the first device; the at least one paging message includes at least one of the following:

[0017] The first paging information is used to page a group of devices;

[0018] Second paging information, used to page one or more devices;

[0019] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0020] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0021] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0022] In a third aspect, a paging device is provided, comprising:

[0023] A receiving unit, configured to receive at least one paging message from the second device; the at least one paging message includes at least one of the following:

[0024] The first paging information is used to page a group of devices;

[0025] Second paging information, used to page one or more devices;

[0026] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0027] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0028] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0029] In a fourth aspect, a paging device is provided, comprising:

[0030] A sending unit, configured to send at least one paging message to the first device; the at least one paging message includes at least one of the following:

[0031] The first paging information is used to page a group of devices;

[0032] Second paging information, used to page one or more devices;

[0033] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0034] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0035] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0036] In a fifth aspect, a first device is provided, comprising a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the first aspect are implemented.

[0037] In a sixth aspect, a first device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to receive at least one paging message from a second device; the at least one paging message includes at least one of the following:

[0038] The first paging information is used to page a group of devices;

[0039] Second paging information, used to page one or more devices;

[0040] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0041] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0042] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0043] In the seventh aspect, a second device is provided, which includes a processor and a memory, wherein the memory stores programs or instructions that can be run on the processor, and when the program or instructions are executed by the processor, the steps of the method described in the second aspect are implemented.

[0044] In an eighth aspect, a second device is provided, comprising a processor and a communication interface, wherein the communication interface is configured to send at least one paging message to the first device; the at least one paging message includes at least one of the following:

[0045] The first paging information is used to page a group of devices;

[0046] Second paging information, used to page one or more devices;

[0047] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0048] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0049] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0050] In the ninth aspect, a readable storage medium is provided, on which a program or instruction is stored. When the program or instruction is executed by a processor, the steps of the method described in the first aspect are implemented, or the steps of the method described in the second aspect are implemented.

[0051] In the tenth aspect, a wireless communication system is provided, comprising: a first device and a second device, wherein the first device can be used to execute the steps of the method described in the first aspect, and the second device can be used to execute the steps of the method described in the second aspect.

[0052] In the eleventh aspect, a chip is provided, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is used to run programs or instructions to implement the method as described in the first aspect, or to implement the method as described in the second aspect.

[0053] In the twelfth aspect, a computer program / program product is provided, which is stored in a storage medium and is executed by at least one processor to implement the steps of the method described in the first aspect, or to implement the steps of the method described in the second aspect.

[0054] In an embodiment of the present application, the paging method includes: a first device receives at least one paging message from a second device; the at least one paging message includes at least one of the following: a first paging message for paging a group of devices; a second paging message for paging one or more devices; the first paging message includes at least one of the following: information of a target group, information for indicating that the paging type is group paging, a paging reason, and a type of device to be paged; the target group includes a first group to which the first device belongs and for group paging; the second paging message includes at least one of the following: information of the target device, information for indicating that the paging type is group paging, a paging reason, and a type of device to be paged; the target group includes a first group to which the first device belongs and for group paging; the second paging message includes at least one of the following: information of the target device, information for indicating that the paging type is Information about paging a device or paging multiple devices, a paging reason, and a device type to be paged; the target device includes the first device; the paging reason includes at least one of the following: a service type and a transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, and mobility update; the transmission type includes at least one of the following: device terminated (DT) and device initiated-device terminated (DO-DTT); or the device type to be paged includes at least one of the following: a passive device with energy storage, a semi-passive device with energy storage, an active device, and a passive device without energy storage. On the one hand, the introduction of a first paging message for paging a group of devices can ensure paging efficiency and performance for devices deployed on a large scale; on the other hand, the combination of a second paging message for paging one or more devices with the first paging message can ensure paging flexibility.

[0055] In addition, when the first paging information includes a paging reason, the first device can decide whether to respond to the first paging information based on the paging reason, thereby reducing false alarms in paging. When the first paging information includes information indicating that the paging type is group paging, the first device can decide whether to decode the content of the paging message based on the paging type, thereby reducing false alarms in paging. Since the first device has multiple device types, when the first paging information includes the device type of the paging, it can be classified by type to avoid the first device from receiving paging that does not match its own device type, thereby reducing false alarms in paging. That is, the content in the first paging information can prevent the first device from receiving unnecessary paging information, thereby reducing the power consumption of the first device.

[0056] Similarly, when the second paging information includes a paging reason, the first device can decide whether to respond to the second paging information based on the paging reason, thereby reducing false alarms of paging. When the second paging information includes information indicating whether the paging type is paging for one device or paging for multiple devices, the first device can decide whether to decode the content of the paging message based on the paging type, thereby reducing false alarms of paging. Since the first device has multiple device types, when the second paging information includes the device type of the paging, it can be classified by type to avoid the first device from receiving paging that does not match its own device type, thereby reducing false alarms of paging. That is, the content in the second paging information can prevent the first device from receiving unnecessary paging information, thereby reducing the power consumption of the first device. BRIEF DESCRIPTION OF THE DRAWINGS

[0057] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0058] FIG1 is a schematic diagram of a communication system architecture provided in an embodiment of the present application;

[0059] FIG2 is a schematic diagram of a backscatter communication process provided by an embodiment of the present application;

[0060] FIG3 is a schematic diagram illustrating a principle of backscatter communication according to an embodiment of the present application;

[0061] FIG4 is a schematic diagram of a process of receiving and sending data by a tag provided in an embodiment of the present application;

[0062] FIG5 is a schematic diagram of information transmitted between a reader and a tag provided in an embodiment of the present application;

[0063] FIG6 is an example of a PEI provided in an embodiment of the present application;

[0064] FIG7 is a schematic flow chart of a paging method according to an embodiment of the present application;

[0065] FIG8 is a schematic block diagram of a paging device according to an embodiment of the present application;

[0066] FIG9 is a schematic block diagram of another paging device provided according to an embodiment of the present application;

[0067] FIG10 is a schematic block diagram of a communication device provided according to an embodiment of the present application;

[0068] FIG11 is a schematic diagram of the hardware structure of a terminal provided according to an embodiment of the present application;

[0069] FIG12 is a schematic block diagram of a network-side device provided according to an embodiment of the present application. DETAILED DESCRIPTION

[0070] The following will be combined with the accompanying drawings in the embodiments of this application to clearly describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of this application.

[0071] The terms "first", "second", etc. in this application are used to distinguish similar objects, and are not used to describe a specific order or sequence. It should be understood that the terms used in this way are interchangeable where appropriate, so that the embodiments of the present application can be implemented in an order other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same type, and the number of objects is not limited. For example, the first object can be one or more. In addition, "or" in this application represents at least one of the connected objects. For example, "show or B shows that it covers three schemes, namely, scheme one: including A and excluding B; scheme two: including B and excluding A; scheme three: including both A and B. The character " character generally indicates that the objects related before and after are in an "or" relationship.

[0072] The term "indication" in this application can be either a direct indication (or explicit indication) or an indirect indication (or implicit indication). A direct indication can be understood as the sender explicitly informing the receiver of specific information, the operation to be performed, or the requested result, etc. in the instruction sent; an indirect indication can be understood as the receiver determining the corresponding information based on the instruction sent by the sender, or making a judgment and determining the operation to be performed or the requested result, etc. based on the judgment result.

[0073] It is worth noting that the technology described in the embodiments of the present application is not limited to the Long Term Evolution (LTE) / LTE-Advanced (LTE-A) system, but can also be used in other wireless communication systems, such as Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Frequency Division Multiple Access (FDMA), Orthogonal Frequency Division Multiple Access (OFDMA), Single-carrier Frequency Division Multiple Access (SC-FDMA) or other systems. The terms "system" and "network" in the embodiments of the present application are often used interchangeably, and the described technology can be used for the systems and radio technologies mentioned above, as well as for other systems and radio technologies. The following description describes a New Radio (NR) system for example purposes, and NR terminology is used in most of the following description, but these technologies can also be applied to systems other than NR systems, such as 6th Generation (6G) communication systems.

[0074] FIG1 shows a block diagram of a wireless communication system applicable to an embodiment of the present application.

[0075] As shown in FIG1 , the wireless communication system includes a terminal 11 and a network-side device 12 .

[0076] The terminal 11 may be a mobile phone, tablet computer, laptop computer, notebook computer, personal digital assistant (PDA), handheld computer, netbook, ultra-mobile personal computer (UMPC), mobile internet device (MID), augmented reality (AR), virtual reality (VR) device, robot, wearable device, flight vehicle, vehicle user equipment (VUE), shipborne equipment, pedestrian user equipment (PUE), smart home (home appliances with wireless communication functions, such as refrigerators, televisions, washing machines, or furniture), game console, personal computer (PC), ATM or self-service machine, etc. Wearable devices include: smart watches, smart bracelets, smart headphones, smart glasses, smart jewelry (smart bracelets, smart bracelets, smart rings, smart necklaces, smart anklets, smart anklets, etc.), smart wristbands, smart clothing, etc. The vehicle-mounted device may also be referred to as a vehicle-mounted terminal, a vehicle-mounted controller, a vehicle-mounted module, a vehicle-mounted component, a vehicle-mounted chip, or a vehicle-mounted unit, etc. It should be noted that the specific type of the terminal 11 is not limited in the embodiment of the present application.

[0077] The network side device 12 may include an access network device or a core network device.

[0078] Access network equipment may also be referred to as radio access network (RAN) equipment, radio access network functions, or radio access network units. Access network equipment may include base stations, wireless local area network (WLAN) access points (AS), or wireless fidelity (WiFi) nodes. Among them, the base station can be referred to as Node B (NB), Evolved Node B (eNB), the next generation Node B (gNB), New Radio Node B (NR Node B), access point, Relay Base Station (RBS), Serving Base Station (SBS), Base Transceiver Station (BTS), radio base station, radio transceiver, Basic Service Set (BSS), Extended Service Set (ESS), Home Node B (HNB), Home Evolved Node B (home evolved Node B), Transmission Reception Point (TRP) or other appropriate terms in the field. As long as the same technical effect is achieved, the base station is not limited to specific technical vocabulary. It should be noted that in the embodiment of the present application, only the base station in the NR system is used as an example for introduction, and the specific type of the base station is not limited.

[0079] The core network equipment may include but is not limited to at least one of the following: core network node, core network function, mobility management entity (MME), access mobility management function (AMF), session management function (SMF), user plane function (UPF), policy control function (PCF), policy and charging rules function unit (PCRF), edge application service discovery function (EASDF), unified data management (UDM), unified data repository (UDR), home user server (HSS), centralized network configuration (CNC), network storage function (NRF), network exposure function (NEF), local NEF (L-NEF), binding support function (BSF), application function ( It should be noted that in the embodiments of the present application, only the core network device in the NR system is introduced as an example, and the specific type of the core network device is not limited.But not limited to at least one of the following: core network node, core network function, Mobility Management Entity (MME), Access and Mobility Management Function (AMF), Session Management Function (SMF), User Plane Function (UPF), Policy Control Function (PCF), Policy and Charging Rules Function (PCRF), Edge Application Server Discovery Function (EASDF), Unified Data Management (UDM), Unified Data Repository (UDR), Home Subscriber Server (HSS), Centralized Network Configuration (CNC), Network Repository Function (NRF), Network Exposure Function (NEF), Local NEF (L-NEF), Binding Support Function (BSF), Application Function (AF), etc. It should be noted that in the embodiments of this application, only the core network equipment in the NR system is introduced as an example, and the specific type of the core network equipment is not limited.

[0080] In order to facilitate a better understanding of the embodiments of the present application, the technologies related to the present application are explained.

[0081] 1. Ambient IoT (A-IoT)

[0082] A-IoT is a new 3GPP IoT technology under research. A-IoT terminals have ultra-low complexity and ultra-low power consumption.

[0083] A-IoT, also known as the ambient power-enabled Internet of Things (Ambient Power-Enabled IoT), corresponds to a type of IoT service in which IoT devices are powered by energy harvesting. IoT devices lack batteries or have limited energy storage capabilities (for example, using a capacitor). Energy harvesting can be done from radio waves, light, motion, heat, or other suitable energy sources.

[0084] Low-power IoT devices are IoT devices with low overall power consumption, including low-power signal reception and low-power signal transmission. Because low-power IoT devices have low overall power consumption, they can generate communication energy from environmental sources such as wind, kinetic energy, thermal energy, and radio frequency (RF) signals. They are also referred to as A-IoT, passive IoT devices, and transponder devices.

[0085] A-IoT terminals can be classified based on energy source, energy storage capability, passive or active transmission, etc. It includes multiple types of devices:

[0086] Device Type A: A passive device with or without energy storage. It does not have independent signal generation or amplification, i.e., backscatter transmission.

[0087] Device Type B: A semi-passive device, also within the passive device category. It has energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy can include amplification of reflected signals.

[0088] Device Type C: An active device with energy storage and independent signal generation, i.e., active RF components for transmission.

[0089] In other words, A-IoT devices can be classified based on energy source, energy storage capability, passive or active emission, etc., including the following types of devices:

[0090] Passive devices with energy storage: They do not have independent signal generation or amplification capabilities and use backscattering technology for data transmission.

[0091] Semi-passive devices with energy storage: These devices have energy storage capabilities but no independent signal generation capabilities. They use backscattering technology for data transmission and can amplify reflected signals.

[0092] Active Device: It has energy storage and independent signal generation capabilities, that is, it has active RF components for data transmission.

[0093] Passive devices without energy storage: they use backscatter technology for data transmission.

[0094] 2. Backscatter Communication (BSC)

[0095] FIG2 is a schematic diagram of a process for providing scattering communication according to an embodiment of the present application.

[0096] As shown in Figure 2, the reader sends a radio frequency signal to the tag through the reader-to-tag link, and the tag sends a backscattered signal of the radio frequency signal to the reader through the tag-to-reader link.

[0097] Backscatter communication refers to the use of radio frequency signals from other devices or the environment to modulate the signal and transmit its own information. Backscatter technology, a passive or low-energy technology, is characterized by its ability to transmit its own signal by modifying the characteristics of the received ambient radio frequency signal, such as its phase or amplitude, to achieve extremely low or zero power consumption.

[0098] As an implementation method, as shown in FIG3 , when the tag needs to send a '1', the tag reflects the incident carrier signal, and when the tag needs to send a '0', the tag does not reflect.

[0099] Backscatter communication equipment controls the circuit's reflection coefficient Γ by adjusting its internal impedance, thereby changing the amplitude, frequency, and phase of the incident signal to achieve signal modulation. The signal reflection coefficient can be expressed as: Γ = (Z_1-Z_0) / (Z_1+Z_0) = |Γ|e^(jθ_T)

[0100] Where Z_0 is the antenna characteristic impedance, and Z_1 is the load impedance. Assuming the incident signal is S_in(t), the output signal is S_out(t) = S_in(t)|Γ|e^(jθ_T). Therefore, by properly controlling the reflection coefficient, corresponding amplitude modulation, frequency modulation, or phase modulation can be achieved.

[0101] Backscatter communication reception is typically low-power, typically using low-power RF, IF, or baseband envelope detection. The waveform of the transmitted signal typically uses simple modulation methods such as OOK, ASK, and FSK.

[0102] The device that communicates with such low-power devices is called a read-write device, which can be, for example, a terminal, a base station, or a device with read-write functions, such as a reader / writer, and the specifics are not limited here.

[0103] 3. A-IoT data / service type.

[0104] A-IoT data / service types may include the following:

[0105] Device-originated (DO) communication.

[0106] The communication is terminated at the device (Device-terminated, DT).

[0107] A-IoT devices autonomously initiate data transmission (Device-originated–autonomous, DO-A).

[0108] A-IoT devices are triggered by reader / writer devices such as base stations (Device-originated–device-terminated triggered, DO-DTT).

[0109] DO and DT data represent data flows originating from A-IoT devices (similar to RFID tags) or transmitted to A-IoT devices. Data flows originating from A-IoT devices, i.e., DO data, can be further categorized as follows:

[0110] DO-A, for example: connecting a large number of various sensors that collect and, when necessary, proactively report information about the environment, equipment, and organisms.

[0111] DO-DTT, such as asset identification, status reporting, and tracking, are all downlink (DL) triggered reports where the reader collects data from the tag by triggering an inventory process. Since the data is generated / initiated in the IoT device, this service should be considered a DO service initiated by the tag, triggered by a command sent by the reader.

[0112] 4. Information transmission between readers and writers in Radio Frequency Identification (RFID).

[0113] RFID is a traditional backscatter communication system designed to identify and read data from BSC devices (i.e., tags) within the reader's coverage area. Because RFID was initially used for automated inventory counting of large quantities of goods, the process of tag identification and data reading is also known as inventory taking.

[0114] Taking the EPC C1G2 RFID system defined in ISO 18000-6c as an example, as shown in Figure 4, after the reader sends a query command (Query), the tag responds with a reply (Reply). For example, if the reply is RN16, the tag generates a 16-bit random number and sends it to the reader. The reader then sends this sequence to the tag via an acknowledgment (ACK) command. After successfully verifying the RN16 in the ACK, the tag sends subsequent data (such as the protocol control (PC) / extended protocol control (XPC), electronic article code (EPC), and cyclic redundancy check (CRC)) to the reader.

[0115] As shown in Figure 5, the operating instructions of the reader are shown in the following table:

[0116] Table 1

[0117] As shown in Figure 5, the status of the Tag tag is shown in the following table:

[0118] Table 2

[0119] 5. New Radio (NR) paging

[0120] The network can send paging to UEs in idle, inactive, and connected states. The paging process can be triggered by the core network to notify a UE to receive a paging request; or triggered by the eNB / gNB to notify system information updates and notify the UE to receive information such as the Earthquake and Tsunami Warning System (ETWS) and Commercial Mobile Alert Service (CMAS).

[0121] During a discontinuous reception (DRX) cycle, the UE can monitor the Physical Downlink Control Channel (PDCCH) only at the paging time (PO) of the corresponding paging radio frame (PF) to see if the Paging Radio Network Temporary Identifier (P-RNTI) of the Paging-Radio Network Temporary Identifier is carried, and then determine whether the corresponding Physical Downlink Shared Channel (PDSCH) carries a paging message.

[0122] If the UE parses the PDCCH and finds the P-RNTI, it receives the data on the PDSCH according to the PDSCH parameters indicated on the PDCCH. The paging message (PDSCH data) received by the UE contains a list of paging records, each of which contains a UE identifier (ID). The terminal needs to match its own UE ID with the UE ID carried in the paging message to determine whether the paging message is for it.

[0123] If the UE does not resolve the P-RNTI on the PDCCH, it no longer needs to receive the PDSCH physical channel and can enter sleep mode according to the DRX cycle. Using this mechanism, within a DRX cycle, the UE can only receive the PDCCH when the PO occurs, and then receive the PDSCH as needed. It can sleep at other times to save power.

[0124] When the system is configured with multiple beams, the UE assumes that the system transmits the same paging messages and short messages on all beams. How to select one or more beams to receive paging messages and short messages is a matter of UE implementation.

[0125] 6. Paging Early Indication (PEI).

[0126] For UEs in idle state, the UE needs to measure the synchronization signal and / or physical broadcast channel block (Synchronization Signal / PBCH Block, SSB) and receive paging in each paging cycle. Paging reception includes the UE monitoring the paging PDCCH on the PO associated with itself, and further receiving the paging PDSCH after monitoring the paging PDCCH. Among them, multiple UEs are associated with one PO, so the UE may be mistakenly awakened to monitor the paging PDCCH and paging PDSCH because other UEs in the same group are paged. The UE will not go to sleep until it is confirmed that the paging PDSCH does not have the UE-ID of the UE. Therefore, since the UE detects the paging PDCCH / PDSCH in each paging cycle, and since there are multiple associated UEs in a PO group, the UE may be mistakenly awakened, which will cause unnecessary monitoring power consumption of the terminal.

[0127] To reduce terminal power consumption, the R17 standard further introduces PDCCH-based Paging Advance Indication (PEI). Before receiving a paging PDCCH, the UE first receives the Paging Advance Indication (PEI). The UE determines whether it needs to monitor subsequent paging PDCCHs based on the content indicated in the Downlink Control Information (DCI) of the Paging Advance Indication PEI. The advantage is that the UE can determine in advance whether it needs to receive the paging PDCCH based on the PEI. If the PEI indicates that the UE does not receive the paging PDCCH, the UE does not need to detect one or more SSBs between the PEI and the PO, thereby saving power.

[0128] In addition, PEI also has the function of further grouping and indicating the UE group of a PO. For example, PEI is associated with and indicates a PO. PEI carries up to 8 bits of group indication information, which is used for further UE group indication of PO. Each bit corresponds to a subgroup, that is, a total of 8 subgroups can be indicated. Therefore, the UEs associated with a PO are further divided into 8 subgroups, and PEI indication is performed for each subgroup, which can reduce the probability of false wake-up of the terminal, thereby reducing the paging monitoring power consumption of the UE. For example, as shown in Figure 6, a PEI indicates 4 PO indexes (index) 0~3, and each PO can be divided into a maximum of 8 subgroups.

[0129] It's worth noting that Ambient IoT (A-IoT) is a 3rd Generation Partnership Project (3GPP) IoT technology. A-IoT devices are ultra-low-complexity, ultra-low-power terminals that use energy harvesting to generate the energy needed for communication. A-IoT aims to provide large-scale cellular network deployment and seamless coverage.

[0130] However, when using the paging solution of related technologies to paging a large number of A-IoT devices, the paging efficiency and paging flexibility are low. In addition, there may be situations where paging cannot be implemented or paging fails due to the excessive number of A-IoT devices, affecting its paging performance. In view of this, the embodiments of the present application provide a paging method, apparatus, first device, and second device that can improve paging efficiency, paging performance, and paging flexibility.

[0131] In particular, for A-IoT devices, the network or reader may need to communicate with a group or one or more A-IoT devices to perform processes such as inventory, sensing, positioning, and command. In other words, how does the network or reader page a group or one or more A-IoT devices? In this embodiment, a first paging message for paging a group of devices is introduced to ensure paging efficiency and paging performance for large-scale deployed devices. On the other hand, the second paging message for paging one or more devices is combined with the first paging message to ensure paging flexibility.

[0132] The paging method provided in the embodiments of the present application is described in detail below through some embodiments and application scenarios in conjunction with the accompanying drawings.

[0133] Figure 7 is a schematic flow chart of a paging method 200 according to an embodiment of the present application. The paging method 200 is interactively executed by a first device and a second device. The first device may be an A-IoT device, and the second device includes one or more of a core network, a base station, a user equipment (UE), an intermediate node, an auxiliary node, or a reader / writer. This application does not specifically limit this.

[0134] As shown in FIG7 , the paging method 200 may include at least part of the following contents:

[0135] S210: The first device receives at least one paging message from the second device; the at least one paging message includes at least one of the following:

[0136] The first paging information is used to page a group of devices;

[0137] Second paging information, used to page one or more devices;

[0138] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0139] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0140] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0141] In the embodiment of the present application, on the one hand, the first paging information for paging a group of devices is introduced to ensure the paging efficiency and paging performance of devices deployed on a large scale. On the other hand, the second paging information for paging one or more devices is combined with the first paging information to ensure paging flexibility.

[0142] In addition, when the first paging information includes a paging reason, the first device can decide whether to respond to the first paging information based on the paging reason, thereby reducing false alarms in paging. When the first paging information includes information indicating that the paging type is group paging, the first device can decide whether to decode the content of the paging message based on the paging type, thereby reducing false alarms in paging. Since the first device has multiple device types, when the first paging information includes the device type of the paging, it can be classified by type to avoid the first device from receiving paging that does not match its own device type, thereby reducing false alarms in paging. That is, the content in the first paging information can prevent the first device from receiving unnecessary paging information, thereby reducing the power consumption of the first device.

[0143] Similarly, when the second paging information includes a paging reason, the first device can decide whether to respond to the second paging information based on the paging reason, thereby reducing false alarms of paging. When the second paging information includes information indicating whether the paging type is paging for one device or paging for multiple devices, the first device can decide whether to decode the content of the paging message based on the paging type, thereby reducing false alarms of paging. Since the first device has multiple device types, when the second paging information includes the device type of the paging, it can be classified by type to avoid the first device from receiving paging that does not match its own device type, thereby reducing false alarms of paging. That is, the content in the second paging information can prevent the first device from receiving unnecessary paging information, thereby reducing the power consumption of the first device.

[0144] It should be understood that, as described above, the first paging information and the second paging information may include one or more information, part of the one or more information may be carried in the paging message, or may be carried in other messages or information, or all of the one or more information may be carried in the paging message. This application does not make any specific limitations on this.

[0145] Exemplarily, all devices in the target group are target devices for paging.

[0146] Exemplarily, DT indicates that the second device initiates the service.

[0147] Exemplarily, DO-DTT is a device-on-demand data transmission triggered by a second device. For example, the second device incentivizes the device to initiate an access procedure on demand. Optionally, the second device incentivizes the device to initiate an access procedure on demand only for passive devices.

[0148] Exemplarily, the paging device type includes at least one of the following: a passive device with energy storage, a semi-passive device with energy storage, an active device, and a passive device without energy storage. It can also be understood or replaced as: the paging device type includes at least one of the following: device type A, device type B, and device type C.

[0149] In some embodiments, the information of the target group includes at least one of the following: an identifier of the target group, and group selection information for selecting the target group.

[0150] Exemplarily, the paging object of the first paging information is the target group indicated by the group identifier. The information of the target group may be a group identifier (Group ID), which is used to indicate the target group. The group selection information is used to select a device that matches the group selection information. In one embodiment, the group selection information includes a domain and a value. The domain is the identifier of the device, or a specific storage space on the device, etc., and the value is the value of the domain. If the value of the domain on a certain device matches the value in the group selection information, the device is selected. For example, the domain is part of the information of a device identifier, such as the high-order X bits of a device identifier, where X is a natural number. If the high-order X bits of the identifier on a certain device are the same as the value in the group selection information, the device is selected.

[0151] In some embodiments, the S210 includes:

[0152] The first device receives a group paging message (Group Paging Message) for performing group paging from the second device, where the group paging message includes the first paging information; or

[0153] The first device monitors the first paging information on a first paging occasion PO, where the first PO is different from the PO used to monitor the second paging information; or

[0154] The first device receives a PDCCH scrambled by a first RNTI from the second device, where the PDCCH scrambled by the first RNTI is used to indicate whether to receive a physical downlink shared channel PDSCH carrying the first paging information, and the first RNTI is different from a paging RNTI; or

[0155] The first device receives a first paging record from the second device, where the first paging record includes the first paging information; for example, the first paging record includes the first paging information; or

[0156] The first device receives a first PEI from the second device, where the first PEI includes at least one of the following: information indicating whether a first group to which the first device belongs and used for group paging receives a paging PDCCH, and the first paging information. For example, the first PEI includes at least one of the following items in the first paging information: information indicating that the paging type is group paging, a paging reason, and a device type being paged; or

[0157] The first device monitors the first paging information on a first carrier associated with the first packet.

[0158] For example, the group paging message is different from the device paging message (non-group paging). When the first paging information is carried by the group paging message, the first device monitors the group paging message to obtain the first paging information. Carrying the group paging message is conducive to distinguishing between group paging and non-group paging, and can prevent UEs or devices that do not support group paging from monitoring the first paging information, thereby not only avoiding monitoring unnecessary paging information, but also reducing the impact of the introduced group paging on other paging.

[0159] For example, the first device monitors the first paging information on the first PO of group paging. Since the first PO is different from the PO used to monitor the second paging information, that is, group paging can use an independent PO, it is possible to distinguish between group paging and non-group paging, thereby not only avoiding the UE or device from monitoring unnecessary paging information, but also reducing the impact of the introduced group paging on other paging.

[0160] Of course, in other alternative embodiments, the first PO may also reuse non-group paging PO. In this case, information indicating that the paging type is group paging may be carried on the paging PDCCH to distinguish between group paging and non-group paging. This not only avoids the UE or device from monitoring unnecessary paging information, but also reduces the impact of the introduced group paging on other paging.

[0161] Exemplarily, the PDCCH scrambled by the first RNTI indicates whether to receive the PDSCH, and the first device monitors the PDCCH scrambled by the first RNTI to determine whether to receive the PDSCH. For example, the first RNTI is group paging (Group Paging-RNTI). After the first device receives the PDCCH scrambled by the first RNTI, the first device receives the PDSCH to obtain the first paging information. Since the first RNTI is a group paging RNTI, the PDCCH scrambled by the first RNTI can be used to distinguish between group paging and other paging, which can not only prevent the first paging information from affecting other terminal devices (UE or first device), but also reduce the impact of the introduced group paging on other paging.

[0162] Exemplarily, the first paging record includes the first paging information. That is, the target group is paged via the first paging record. For example, the first paging record includes information about the target group. For example, it may include an identifier of the target group or group selection information, such as identifiers of one or more target groups. For another example, the paging record may also include a paging reason.

[0163] Exemplarily, the first PEI includes indication information of the first paging information. For example, the first PEI can indicate at least one of the following through a bitmap: whether the first group to which the first device belongs and used for group paging receives the paging PDCCH, whether the paging type is group paging or paging of a group of devices, the paging reason, the device type of the paging, etc.

[0164] Exemplarily, the first device monitors the first paging information on a first carrier associated with a first group for group paging to which the first device belongs; in other words, the first carrier associated with the first group for group paging to which the first device belongs is used to carry the first paging information. In other words, a specific group only needs to monitor a specific carrier, for example, the specific carrier is the carrier associated with the group for group paging to which the specific device belongs. This can reduce the number of carriers that the first device needs to monitor, which not only helps reduce the cost or complexity of the first device, but also reduces the impact of the introduced group paging on other paging.

[0165] In some embodiments, the information of the target device includes at least one of the following: an identifier of the target device, and an identifier of a second group to which the first device belongs and which is used for non-group paging.

[0166] Exemplarily, the second group is a group containing paging target devices.

[0167] In some embodiments, the S210 includes:

[0168] The first device receives a second paging record from the second device, where the second paging record includes the second paging information; for example, the second paging record includes information of the target device; or

[0169] The first device receives a second PEI from the second device, where the second PEI includes at least one of the following: information indicating whether a second group to which the first device belongs and used for non-group paging receives a paging PDCCH, and the second paging information; for example, the second PEI includes at least one of the following in the second paging information: the second paging information; or

[0170] The first device monitors the second paging information on a second carrier associated with the first device.

[0171] Illustratively, the second paging record includes second paging information. That is, the second paging record is used to page a target device or a target group for non-group paging. For example, the second paging record includes target device information, such as identifiers of one or more target devices, or an identifier of a target group for non-group paging. For another example, the paging record includes a paging reason.

[0172] Exemplarily, the second PEI includes indication information of the second paging information, for example, the second PEI indicates at least one of the following through a bitmap: whether the second group to which the first device belongs and used for non-group paging receives the paging PDCCH, whether the paging type is paging for one device or paging for multiple devices, the paging reason, the type of device being paged, etc.

[0173] Exemplarily, the first device monitors the second paging information on a second carrier associated with the first device; or in other words, the second carrier associated with the first device is used to carry non-group paging information of the first device.

[0174] In some embodiments, the second grouping is a grouping selected from at least one of the following:

[0175] the group associated with the PO of the first device;

[0176] a packet associated with discontinuous reception (DRX) monitored by the first device;

[0177] a packet associated with a paging time window (PTW) monitored by the first device;

[0178] A packet associated with the carrier monitored by the first device.

[0179] Exemplarily, the first device performs continuous monitoring for part or all of a time interval of a DRX cycle, wherein the A-IoT devices monitoring the DRX are grouped, and the groups are groups associated with the DRX.

[0180] Exemplarily, the first device performs paging monitoring within a PTW time interval, wherein the A-IoT devices monitoring the PTW are grouped, and the group is the group associated with the PTW.

[0181] Exemplarily, the first device monitors paging on the carrier, wherein the A-IoT devices monitoring the carrier are grouped, and the group is the group associated with the carrier.

[0182] In some embodiments, the method 200 further includes:

[0183] The first device receives paging configuration information from the second device;

[0184] The paging configuration information includes at least one of the following:

[0185] A monitoring indication, used to indicate whether the first device monitors the paging information according to the paging occasion PO position or whether to monitor the paging information continuously;

[0186] A paging monitoring interval, used to indicate an interval between two paging monitorings of the first device;

[0187] DRX cycle;

[0188] Enhanced Discontinuous Reception (eDRX) cycle;

[0189] PTW parameters;

[0190] information of a first group to which the first device belongs and used for group paging;

[0191] information of a second group to which the first device belongs and used for non-group paging;

[0192] A first group number for group paging;

[0193] A second group number for non-group paging;

[0194] PO configuration for group paging;

[0195] Carrier configuration for group paging.

[0196] In some embodiments, the paging configuration information satisfies at least one of the following:

[0197] The DRX cycle is greater than or equal to the energy collection duration required by the first device;

[0198] The eDRX cycle is greater than or equal to the energy collection time required by the first device;

[0199] The PTW parameter includes at least one of the following: PTW length (PTW length), PTW start frame (PTW start);

[0200] The remaining duration after subtracting the PTW length from the eDRX cycle is greater than or equal to the energy collection duration required by the first device;

[0201] The information of the first group includes an identifier of the first group;

[0202] The information of the first group is configured by a third device; for example, the third device is at least one of the following: a core network, a central unit (CU); for example, the CU may send the information of the first group to a distributed unit (DU);

[0203] The information of the second group is configured by a third device; for example, the third device is at least one of the following: a core network, a central unit (CU); for example, the CU may send the information of the second group to a distributed unit (DU);

[0204] The information of the first group is determined based on the number of the first groups and the identifier of the first device;

[0205] The number of the first groups is equal to the number of device types;

[0206] The carrier configuration of the group paging includes at least one of the following: an identifier for configuring the first carrier associated with the first group, and a total number of carriers.

[0207] Exemplarily, the monitoring indication is used to indicate whether the first device monitors paging based on the PO location or monitors paging continuously. If the first device is a passive device, it may monitor continuously during periods when it is not collecting energy, i.e., it may monitor not based on the PO location. In the case of continuous monitoring or not based on the PO location, the first device monitors paging intermittently.

[0208] Exemplarily, the paging listening interval is used to indicate the interval between two paging listenings by the first device. The paging listening interval is greater than or equal to the energy collection duration required by the first device. It is understood that in the case of continuous listening or not listening by PO position, the first device performs intermittent monitoring paging according to the paging listening interval.

[0209] Exemplarily, the PTW length is less than or equal to the maximum duration of continuous operation of the first device, or the maximum active time. Optionally, Device A / B continuously monitors paging within the PTW. It can be understood that in the case of continuous monitoring or not monitoring by PO position, the first device performs continuous monitoring within the PTW. In addition, if the PTW window length is greater than or equal to the maximum duration of continuous operation of the first device, the first device may also perform intermittent monitoring of paging within the PTW. Optionally, the remaining duration after subtracting the PTW length from the eDRX cycle is greater than or equal to the energy collection duration required by the first device.

[0210] It is worth noting that the first device needs to collect energy during the communication process and may not support long-term continuous communication. In this embodiment, considering the energy collection process of the first device during paging, paging configurations related to continuous monitoring paging or intermittent monitoring paging are provided, such as no PO monitoring, continuous monitoring within PTW, etc. In addition, paging configurations related to continuous monitoring paging, intermittent monitoring paging, DRX, PO, eDRX, PTW, etc. are designed to effectively support the energy collection process of the first device during paging.

[0211] In some embodiments, before the first device receives the paging configuration information from the second device, the method 200 further includes:

[0212] The first device sends a request message to the third device, and the request message includes at least one of the following: the device type of the first device, at least one service type supported by the first device, the time required for energy collection of the first device, the PTW parameters expected by the first device, and the DRX cycle or eDRX cycle expected by the first device. The request message is used to determine information of the first group or the second group.

[0213] Exemplarily, the first device sends a request message, such as a registration message, to the core network, which includes at least one of the following:

[0214] The type of the first device (e.g., Device A / B / C);

[0215] Supported business types, such as inventory, sensing, command, positioning, etc.

[0216] the duration required for energy harvesting by the first device;

[0217] Desired PTW duration;

[0218] Desired eDRX cycle.

[0219] Exemplarily, after the first device sends a request message to the core network, the first device receives a response message sent by the core network, such as a registration acceptance message, which includes an identifier of the first device and an identifier of a first group to which the first device belongs and used for group paging. For example, the core network determines the identifier of the first group based on the characteristics of the first device. The characteristics of the first device include the category of the first device (such as Device A / B / C); the duration required for energy collection of the first device, the expected eDRX cycle, the expected PTW duration, the supported service types, etc.

[0220] In some embodiments, the paging configuration information is carried by at least one of the following: a system message, a received registration acceptance message, and a service acceptance message.

[0221] In some embodiments, the first device is an A-IoT device.

[0222] Of course, in other alternative embodiments, the first device is any device that supports low-power communication, and this application does not make specific limitations on this.

[0223] The paging method provided by this application is described below with reference to specific embodiments.

[0224] Example 1:

[0225] In this embodiment, assuming that the first device is an A-IoT device, the first paging information mentioned above may be A-IoT group paging information. The paging method provided in this application may include the following contents:

[0226] 1. The A-IoT device determines the group information for group paging.

[0227] The group information used by the A-IoT device for group paging can be the group identifier of the A-IoT device. The group identifier can be allocated by the core network (CN), for example, by configuring it through a registration acceptance message. The group identifier can also be determined by the identifier of the A-IoT device and the number of groups. For example, the group identifier can be obtained by performing a modulo operation on the identifier of the A-IoT device using the number of groups.

[0228] 2. The A-IoT device receives paging configuration information sent by a second device (e.g., one or more of a core network, a base station, a user equipment (UE), an intermediate node, an auxiliary node, or a reader).

[0229] The paging configuration information includes at least one of the following:

[0230] Listening indication: This indicates whether the A-IoT device listens for paging based on the PO location or continuously. For passive A-IoT devices, continuous listening is possible during periods when not collecting energy, meaning it can be performed independently of the PO location. In this scenario, the A-IoT device listens for paging intermittently.

[0231] Paging listening interval. This indicates the interval between two paging listening calls by the A-IoT device. The paging listening interval is greater than or equal to the energy collection duration required by the A-IoT device. It is understood that in the case of continuous listening or not listening by PO location, the A-IoT device performs intermittent paging listening according to the paging listening interval.

[0232] A-IoT DRX period: The A-IoT DRX period is greater than or equal to the energy collection time required by the A-IoT device.

[0233] A-IoT eDRX cycle: The A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0234] A-IoT PTW parameters. A-IoT PTW parameters include A-IoT PTW length (PTW length) and A-IoT PTW start frame (A-IoT PTW start). Optionally, the A-IoT PTW length is less than or equal to the duration that the A-IoT device can continue to work, or the maximum active time. Optionally, Device A / B continuously monitors paging within the PTW. It can be understood that in the case of continuous monitoring or not monitoring by PO position, the A-IoT device performs continuous monitoring within the PTW. In addition, if the A-IoT PTW window length is greater than or equal to the duration that the A-IoT device can continue to work, the A-IoT device can also perform intermittent monitoring of paging within the PTW. Optionally, the remaining time after deducting the A-IoT PTW length from the A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0235] The group information used for group paging of A-IoT devices. This is the group identifier of the A-IoT device. This group identifier can be assigned by the core network (CN), for example, via a registration acceptance message. This group identifier can also be determined by the A-IoT device identifier and the group number. For example, the group identifier can be obtained by performing a modulo operation on the A-IoT device identifier using the group number.

[0236] The number of groups of A-IoT devices. Group information for group paging of A-IoT devices can be calculated based on the number of groups.

[0237] PO configuration for A-IoT group paging, for example, the PO number in a DRX cycle.

[0238] Carrier configuration for A-IoT group paging. This includes at least one of the following: the carrier to which the A-IoT device group is associated, and the total number of carriers. The A-IoT device determines the carrier to which the A-IoT device group is associated based on the total number of carriers.

[0239] It is worth noting that A-IoT devices need to harvest energy during communication and may not support long-term continuous communication. This embodiment considers the energy harvesting process of A-IoT devices during paging and provides paging configurations related to continuous monitoring paging or intermittent monitoring paging, such as monitoring without PO and continuous monitoring within PTW. In addition, paging configurations related to continuous monitoring paging, intermittent monitoring paging, DRX, PO, eDRX, and PTW are designed to effectively support the energy harvesting process of A-IoT devices during paging.

[0240] The paging configuration information is carried in at least one of the following ways:

[0241] System message. That is, the A-IoT device receives a system message, which includes paging configuration information.

[0242] Registration acceptance message or service acceptance message. That is, the A-IoT device receives the registration acceptance message, and the registration acceptance message or service acceptance message includes paging configuration information.

[0243] 3. The A-IoT device receives the A-IoT group paging information sent by the second device, which is used to page a group of A-IoT devices.

[0244] In the case where the second device instructs continuous monitoring or not to monitor according to the PO location, the A-IoT device intermittently monitors the A-IoT group paging information.

[0245] When eDRX is configured, if the A-IoT PTW length is greater than or equal to the A-IoT device's maximum operating time, the A-IoT device can intermittently monitor A-IoT group paging information within the PTW. If the A-IoT PTW length is less than or equal to the A-IoT device's maximum operating time, or the maximum active time, the A-IoT device continuously monitors A-IoT group paging information within the PTW.

[0246] The A-IoT group paging information includes at least one of the following:

[0247] Target A-IoT group information. For example, the group ID is used to indicate the target A-IoT device group. The target of the paging is the target A-IoT device group indicated by the group ID.

[0248] Group selection information. Used to select an A-IoT device that matches the group selection information. In one embodiment, the group selection information includes a domain and a value. The domain is the identifier of the A-IoT, or a specific storage space on the A-IoT device, etc., and the value is the value of the domain. If the value of the domain on the A-IoT device matches the value in the group selection information, the A-IoT device is selected. For example, the domain is part of the information of the A-IoT device identifier, such as the high-order X bits of the A-IoT identifier, where X is a natural number. If the high-order X bits of the identifier on the A-IoT device are the same as the value in the group selection information, the A-IoT device is selected.

[0249] Paging reason. Includes or is used to indicate at least one of the following: A-IoT service type (service type may also be referred to as process), transmission type. Among them, the A-IoT service type includes at least one of the following: inventory, sensing, positioning and command, mobility update, etc. The transmission type includes at least one of the following: DT, DO-DTT. It can be understood that DT means that the second device initiates the service. It can be understood that DO-DTT is triggered by the second device and the A-IoT device initiates data transmission on demand. For example, the second device stimulates the A-IoT device to initiate an access process on demand. Optionally, the second device stimulates the A-IoT device to initiate an access process on demand only for passive A-IoT devices. The A-IoT group paging information includes a paging reason, so that the A-IoT device can decide whether to respond to the A-IoT group paging information based on the paging reason, thereby reducing false alarms (False Alarm) of paging.

[0250] Information used to indicate that the paging type is a paging for a group of A-IoT devices. The A-IoT group paging information includes information used to indicate that the paging type is a paging for a group of devices, so that the A-IoT device can decide whether to decode the paging message content based on the paging type, reducing false alarms of paging.

[0251] Target A-IoT device type information. The target A-IoT device type information includes at least one of the following: a passive device with energy storage, a semi-passive device with energy storage, an active device, and a passive device without energy storage. Alternatively, the target A-IoT device type information includes at least one of the following: Device Type A: A passive device with no energy storage or with energy storage but no independent signal generation / amplification, i.e., backscatter transmission. Device Type B: A semi-passive device, also belonging to the general category of passive devices, with energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy may include amplification of reflected signals. Device Type C: An active device with energy storage and independent signal generation, i.e., an active RF component for transmission. Because A-IoT devices have multiple device types, the A-IoT group paging information includes target A-IoT device type information. By classifying the types, the A-IoT device can be prevented from receiving paging that does not match its own device type, thereby reducing false alarms of paging.

[0252] The A-IoT group paging information is carried in the following ways:

[0253] A paging record contains A-IoT group paging information. This means that the A-IoT device group is paged through the paging record. For example, the paging record may contain target A-IoT group information or group selection information, such as the identifiers of one or more target A-IoT device groups. For another example, the paging record may include the paging reason.

[0254] Paging Early Indicator (PEI), which includes indication information of A-IoT group paging information, such as a bitmap indicating at least one of the following: whether the group used for group paging to which the A-IoT device belongs receives paging PDCCH information, information used to indicate that the paging type is paging for a group of devices, the paging reason, the type of device being paged, etc.

[0255] The carrier associated with the group of A-IoT devices used for group paging, that is, the A-IoT devices monitor paging on the carrier associated with the group of A-IoT devices used for group paging; in other words, the carrier associated with the group of A-IoT devices used for group paging is used to carry A-IoT group paging information. A specific A-IoT device group only needs to monitor a specific carrier, such as the carrier associated with the specific A-IoT device group. This can reduce the number of carriers that the A-IoT devices need to monitor, not only helping to reduce the cost or complexity of A-IoT devices, but also reducing the impact of the introduced group paging on other paging.

[0256] Group paging messages are different from A-IoT paging messages (non-group paging). When group paging messages carry A-IoT group paging information, A-IoT devices listen to the group paging messages and obtain the A-IoT group paging information. Carrying group paging messages helps distinguish between group paging and non-group paging, and can prevent UEs or A-IoT devices that do not support group paging from listening to A-IoT group paging information. This not only avoids listening to unnecessary paging information, but also reduces the impact of the introduced group paging on other paging.

[0257] The A-IoT device monitors the A-IoT group paging information at the group paging PO. Since the introduced group paging can use an independent PO, it can distinguish between group paging and non-group paging. This not only prevents the UE or A-IoT device from monitoring unnecessary paging information, but also reduces the impact of the introduced group paging on other paging.

[0258] The first RNTI scrambled PDCCH indicates whether to receive PDSCH, and the A-IoT device monitors the first RNTI scrambled PDCCH to determine whether to receive PDSCH. For example, the first RNTI is group paging (Group Paging-RNTI). After the A-IoT device receives the PDCCH scrambled by the first RNTI, the A-IoT device receives PDSCH to obtain A-IoT group paging information. Since the first RNTI is a group paging RNTI, the PDCCH scrambled by the first RNTI can be used to distinguish between group paging and other paging, which can not only prevent the A-IoT group paging information from affecting other terminal devices (UE or A-IoT devices), but also reduce the impact of the introduced group paging on other paging.

[0259] In this embodiment, the network or the reader can implement paging for a group of A-IoT devices.

[0260] Example 2:

[0261] In this embodiment, assuming that the first device is an A-IoT device, the second paging information mentioned above may be an A-IoT paging information. The paging method provided in this application may include the following contents:

[0262] 1. The A-IoT device receives paging configuration information sent by a second device (e.g., one or more of a core network, a base station, a user equipment (UE), an intermediate node, an auxiliary node, or a reader).

[0263] The paging configuration information includes at least one of the following:

[0264] Listening indication: This indicates whether the A-IoT device listens for paging based on the PO location or continuously. For passive A-IoT devices, continuous listening is possible during periods when not collecting energy, meaning it can be performed independently of the PO location. In this scenario, the A-IoT device listens for paging intermittently.

[0265] Paging listening interval. This indicates the interval between two paging listening calls by the A-IoT device. The paging listening interval is greater than or equal to the energy collection duration required by the A-IoT device. It is understood that in the case of continuous listening or not listening by PO location, the A-IoT device performs intermittent paging listening according to the paging listening interval.

[0266] A-IoT DRX period: The A-IoT DRX period is greater than or equal to the energy collection time required by the A-IoT device.

[0267] A-IoT eDRX cycle: The A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0268] A-IoT PTW parameters. A-IoT PTW parameters include A-IoT PTW length (PTW length) and A-IoT PTW start frame (A-IoT PTW start). Optionally, the A-IoT PTW length is less than or equal to the duration that the A-IoT device can continue to work, or the maximum active time. Optionally, Device A / B continuously monitors paging within the PTW. It can be understood that in the case of continuous monitoring or not monitoring by PO position, the A-IoT device performs continuous monitoring within the PTW. In addition, if the A-IoT PTW window length is greater than or equal to the duration that the A-IoT device can continue to work, the A-IoT device can also perform intermittent monitoring of paging within the PTW. Optionally, the remaining time after deducting the A-IoT PTW length from the A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0269] It is worth noting that A-IoT devices need to harvest energy during communication and may not support long-term continuous communication. This embodiment considers the energy harvesting process of A-IoT devices during paging and provides paging configurations related to continuous monitoring paging or intermittent monitoring paging, such as monitoring without PO and continuous monitoring within PTW. In addition, paging configurations related to continuous monitoring paging, intermittent monitoring paging, DRX, PO, eDRX, and PTW are designed to effectively support the energy harvesting process of A-IoT devices during paging.

[0270] The paging configuration information is carried in at least one of the following ways:

[0271] System message. That is, the A-IoT device receives a system message, which includes paging configuration information.

[0272] Registration acceptance message or service acceptance message. That is, the A-IoT device receives the registration acceptance message, and the registration acceptance message or service acceptance message includes paging configuration information.

[0273] 2. The A-IoT device receives the A-IoT paging information sent by the second device, which is used to page one or more A-IoT devices.

[0274] In the case where the second device instructs continuous monitoring or not to monitor according to the PO location, the A-IoT device intermittently monitors the A-IoT paging information.

[0275] When eDRX is configured, if the A-IoT PTW window length is greater than or equal to the A-IoT device's maximum operating time, the A-IoT device can intermittently monitor A-IoT paging information within the PTW. If the A-IoT PTW length is less than or equal to the A-IoT device's maximum operating time, or the maximum active time, the A-IoT device continuously monitors A-IoT paging information within the PTW.

[0276] The A-IoT paging information includes at least one of the following:

[0277] Target A-IoT device information, including the identifiers of one or more target A-IoT devices.

[0278] The paging reason includes or is used to indicate at least one of the following: A-IoT service type (service type may also be referred to as process), transmission type. Among them, the A-IoT service type includes at least one of the following: inventory, sensing, positioning and command, mobility update, etc. The transmission type includes at least one of the following: DT, DO-DTT. It can be understood that DT means that the first network initiates the service. It can be understood that DO-DTT is triggered by the second device and the A-IoT device initiates data transmission on demand. For example, the second device stimulates the A-IoT device to initiate an access process on demand. Optionally, the second device stimulates the A-IoT device to initiate an access process on demand only for passive type A-IoT devices. The A-IoT paging information includes the paging reason, so that the A-IoT device can decide whether to respond to the A-IoT paging information based on the paging reason, thereby reducing false alarms of paging.

[0279] Information indicating whether the paging type is paging for one device or paging for multiple devices. The A-IoT paging information includes information indicating whether the paging type is paging for one device or paging for multiple devices, allowing the A-IoT device to decide whether to decode the paging message content based on the paging type, thereby reducing false alarms of paging.

[0280] Target A-IoT device type information. The target A-IoT device type information includes at least one of the following: a passive device with energy storage, a semi-passive device with energy storage, an active device, and a passive device without energy storage. Alternatively, the target A-IoT device type information includes at least one of the following: Device Type A: A passive device with no energy storage or with energy storage but no independent signal generation / amplification, i.e., backscatter transmission. Device Type B: A semi-passive device, also belonging to the general category of passive devices, with energy storage but no independent signal generation, i.e., backscatter transmission. The use of stored energy may include amplification of reflected signals. Device Type C: An active device with energy storage and independent signal generation, i.e., an active RF component for transmission. Because A-IoT devices have multiple device types, the A-IoT paging information includes target A-IoT device type information. By classifying the types, the A-IoT device can be prevented from receiving paging that does not match its own device type, thereby reducing false alarms of paging.

[0281] The A-IoT paging information is carried in the following ways:

[0282] A paging record contains A-IoT paging information. This means that a paging record is used to page a target A-IoT device or a group of A-IoT devices for non-group paging. For example, the paging record contains target A-IoT device information, such as the identifiers of one or more target A-IoT devices. For another example, the paging record includes the reason for the paging.

[0283] Paging Early Indicator (PEI), which includes indication information of A-IoT paging information, such as a bitmap indicating at least one of the following: whether the group for non-group paging to which the A-IoT device belongs receives paging PDCCH information, information indicating whether the paging type is paging for one device or paging for multiple devices, the paging reason, the device type being paged, etc.

[0284] The carrier associated with the A-IoT device, that is, the A-IoT device monitors paging on the carrier associated with the A-IoT device; in other words, the carrier associated with the A-IoT device is used to carry the paging information of the A-IoT device.

[0285] In this embodiment, the network or the reader can implement paging of one or more A-IoT devices.

[0286] Example 3:

[0287] In this embodiment, the A-IoT device can determine its group based on the configured A-IoT device grouping information. For example, the A-IoT device can determine the first group to which it belongs for group paging based on the configured A-IoT device grouping information. For another example, the A-IoT device can determine the second group to which it belongs for non-group paging based on the configured A-IoT device grouping information.

[0288] As an implementation, assuming that the first device is an A-IoT device, the second device (e.g., one or more of a core network, a base station, a user equipment (UE), an intermediate node, an auxiliary node, or a reader / writer) may configure the group identifier of the A-IoT device. Specifically, the following aspects may be included:

[0289] 1. The A-IoT device sends a request message, such as a registration message, to the core network, which includes at least one of the following:

[0290] A-IoT device category (such as Device A / B / C);

[0291] Supported business types, such as inventory, sensing, command, positioning, etc.

[0292] The duration required for energy harvesting by A-IoT devices;

[0293] Desired PTW duration;

[0294] Desired eDRX cycle.

[0295] 2. The A-IoT device receives a response message from the core network, such as a registration acceptance message, which contains the A-IoT device identifier and group identifier.

[0296] For example, the core network determines the group identifier based on the characteristics of the A-IoT device, including the A-IoT device category (such as Device A / B / C), the energy collection time required for the A-IoT device, the expected eDRX cycle, the expected PTW duration, and the types of services supported.

[0297] 3. The A-IoT device receives a group paging message from a reader such as a base station or an intermediate node based on the group identifier.

[0298] As another implementation, the A-IoT device calculates its group based on information related to the number of A-IoT device groups. That is, the group ID to which the A-IoT device belongs is calculated based on the A-IoT device ID and information related to the number of groups. Specifically, this may include the following:

[0299] 1. The A-IoT device receives a response message, such as a system message or configuration message, from a reader / writer, such as a base station or an intermediate node. The response message includes a packet number. Information related to the packet number includes at least one of the following:

[0300] Total number of groups. This refers to the number of groups into which all A-IoT devices are divided.

[0301] Provides multiple groupings by device type, that is, groups devices separately by device type.

[0302] 2. The A-IoT device determines the group ID.

[0303] When grouping by the total number of groups, the group ID to which the A-IoT device belongs is calculated based on the A-IoT device ID and the total number of groups. If the number of groups is provided by device type, the group ID to which the A-IoT device belongs is calculated based on the A-IoT device ID and the number of groups corresponding to the A-IoT device type.

[0304] Example 4:

[0305] In this embodiment, a third device (e.g., a core network) sends information for triggering paging (referred to as third paging information) to a second device (e.g., one or more of a base station, user equipment (UE), an intermediate node, an auxiliary node, or a reader / writer), so that the second device sends a paging information (e.g., a first paging information or a second paging information) to the A-IoT device based on the received information. Specifically, the following contents may be included:

[0306] 1. The second device receives a third paging message sent by the third device.

[0307] The third paging information includes at least one of the following:

[0308] Listening indication: This indicates whether the A-IoT device listens for paging based on the PO location or continuously. For passive A-IoT devices, continuous listening is possible during periods when not collecting energy, meaning it can be performed independently of the PO location. In this scenario, the A-IoT device listens for paging intermittently.

[0309] Paging listening interval. This indicates the interval between two paging listening calls by the A-IoT device. The paging listening interval is greater than or equal to the energy collection duration required by the A-IoT device. It is understood that in the case of continuous listening or not listening by PO location, the A-IoT device performs intermittent paging listening according to the paging listening interval.

[0310] A-IoT DRX period: The A-IoT DRX period is greater than or equal to the energy collection time required by the A-IoT device.

[0311] A-IoT eDRX cycle: The A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0312] A-IoT PTW parameters. A-IoT PTW parameters include A-IoT PTW length (PTW length) and A-IoT PTW start frame (A-IoT PTW start). Optionally, the A-IoT PTW length is less than or equal to the duration that the A-IoT device can continue to work, or the maximum active time. Optionally, Device A / B continuously monitors paging within the PTW. It can be understood that in the case of continuous monitoring or not monitoring by PO position, the A-IoT device performs continuous monitoring within the PTW. In addition, if the A-IoT PTW window length is greater than or equal to the duration that the A-IoT device can continue to work, the A-IoT device can also perform intermittent monitoring of paging within the PTW. Optionally, the remaining time after deducting the A-IoT PTW length from the A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0313] The group information used for group paging of A-IoT devices. This is the group identifier of the A-IoT device. This group identifier can be assigned by the core network (CN), for example, via a registration acceptance message. This group identifier can also be determined by the A-IoT device identifier and the group number. For example, the group identifier can be obtained by performing a modulo operation on the A-IoT device identifier using the group number.

[0314] The number of groups of A-IoT devices. Group information for group paging of A-IoT devices can be calculated based on the number of groups.

[0315] PO configuration for A-IoT group paging, for example, the PO number in a DRX cycle.

[0316] Carrier configuration for A-IoT group paging. This includes at least one of the following: the carrier to which the A-IoT device group is associated, and the total number of carriers. The A-IoT device determines the carrier to which the A-IoT device group is associated based on the total number of carriers.

[0317] 2. The second device sends a first paging message or a second paging message to the A-IoT device. The first paging message or the second paging message is determined according to the third paging message.

[0318] Example 5:

[0319] In this embodiment, the CU sends the second paging information to the DU, so that the DU sends the first paging information to the A-IoT device based on the received information. Specifically, the following contents may be included:

[0320] 1. The DU receives the second paging information sent by the CU.

[0321] The second paging information includes at least one of the following:

[0322] Listening indication: This indicates whether the A-IoT device listens for paging based on the PO location or continuously. For passive A-IoT devices, continuous listening is possible during periods when not collecting energy, meaning it can be performed independently of the PO location. In this scenario, the A-IoT device listens for paging intermittently.

[0323] Paging listening interval. This indicates the interval between two paging listening calls by the A-IoT device. The paging listening interval is greater than or equal to the energy collection duration required by the A-IoT device. It is understood that in the case of continuous listening or not listening by PO location, the A-IoT device performs intermittent paging listening according to the paging listening interval.

[0324] A-IoT DRX period: The A-IoT DRX period is greater than or equal to the energy collection time required by the A-IoT device.

[0325] A-IoT eDRX cycle: The A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0326] A-IoT PTW parameters. A-IoT PTW parameters include A-IoT PTW length (PTW length) and A-IoT PTW start frame (A-IoT PTW start). Optionally, the A-IoT PTW length is less than or equal to the duration that the A-IoT device can continue to work, or the maximum active time. Optionally, Device A / B continuously monitors paging within the PTW. It can be understood that in the case of continuous monitoring or not monitoring by PO position, the A-IoT device performs continuous monitoring within the PTW. In addition, if the A-IoT PTW window length is greater than or equal to the duration that the A-IoT device can continue to work, the A-IoT device can also perform intermittent monitoring of paging within the PTW. Optionally, the remaining time after deducting the A-IoT PTW length from the A-IoT eDRX cycle is greater than or equal to the energy collection time required by the A-IoT device.

[0327] The group information used for group paging of A-IoT devices. This is the group identifier of the A-IoT device. This group identifier can be assigned by the core network (CN), for example, via a registration acceptance message. This group identifier can also be determined by the A-IoT device identifier and the group number. For example, the group identifier can be obtained by performing a modulo operation on the A-IoT device identifier using the group number.

[0328] The number of groups of A-IoT devices. Group information for group paging of A-IoT devices can be calculated based on the number of groups.

[0329] PO configuration for A-IoT group paging, for example, the PO number in a DRX cycle.

[0330] Carrier configuration for A-IoT group paging. This includes at least one of the following: the carrier to which the A-IoT device group is associated, and the total number of carriers. The A-IoT device determines the carrier to which the A-IoT device group is associated based on the total number of carriers.

[0331] 2. The DU sends a first paging message to the A-IoT device. The A-IoT paging message is determined based on the second paging message.

[0332] The paging method provided in the embodiment of the present application can be executed by a paging device. In the embodiment of the present application, the paging method performed by the paging device is taken as an example to illustrate the paging device provided in the embodiment of the present application.

[0333] FIG8 shows a schematic block diagram of a paging device 300 according to an embodiment of the present application.

[0334] As shown in FIG8 , the paging device 300 includes:

[0335] The receiving unit 310 is configured to receive at least one paging message from the second device; the at least one paging message includes at least one of the following:

[0336] The first paging information is used to page a group of devices;

[0337] Second paging information, used to page one or more devices;

[0338] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0339] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0340] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0341] In some embodiments, the receiving unit 310 is further configured to:

[0342] receiving a group paging message for group paging from the second device, where the group paging message includes the first paging information; or

[0343] monitoring the first paging information on a first paging occasion (PO), where the first paging occasion (PO) is different from the PO used to monitor the second paging information; or

[0344] receiving, from the second device, a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI, where the PDCCH scrambled by the first RNTI is used to indicate whether to receive a physical downlink shared channel PDSCH carrying the first paging information, and the first RNTI is different from the paging RNTI; or

[0345] receiving a first paging record from the second device, where the first paging record includes the first paging information; or

[0346] receiving first paging advance indication information PEI from the second device, where the first PEI includes at least one of the following: information indicating whether a first group to which the first device belongs and used for group paging receives a paging physical downlink control channel PDCCH, and the first paging information; or

[0347] The first paging information is monitored on a first carrier associated with the first packet.

[0348] In some embodiments, the information of the target group includes at least one of the following: an identifier of the target group, and group selection information for selecting the target group.

[0349] In some embodiments, the receiving unit 310 is specifically configured to:

[0350] receiving a second paging record from the second device, where the second paging record includes information of the target device; or

[0351] receiving second paging advance indication information PEI from the second device, where the second PEI includes at least one of the following: information indicating whether a second group to which the first device belongs and used for non-group paging receives a paging physical downlink control channel PDCCH, and the second paging information; or

[0352] The second paging information is monitored on a second carrier associated with the first device.

[0353] In some embodiments, the information of the target device includes at least one of the following: an identifier of the target device, and an identifier of a second group to which the first device belongs and which is used for non-group paging.

[0354] In some embodiments, the second grouping is a grouping selected from at least one of the following:

[0355] a group associated with the paging occasion PO of the first device;

[0356] a packet associated with discontinuous reception (DRX) monitored by the first device;

[0357] a group associated with the paging time window PTW monitored by the first device;

[0358] A packet associated with the carrier monitored by the first device.

[0359] In some embodiments, the receiving unit 310 is further configured to:

[0360] receiving paging configuration information from the second device;

[0361] The paging configuration information includes at least one of the following:

[0362] A monitoring indication, used to indicate whether the first device monitors the paging information according to the paging occasion PO position or whether to monitor the paging information continuously;

[0363] A paging monitoring interval, used to indicate an interval between two paging monitorings of the first device;

[0364] Discontinuous reception DRX cycle;

[0365] Enhanced discontinuous reception (eDRX) cycle;

[0366] Paging time window PTW parameters;

[0367] information of a first group to which the first device belongs and used for group paging;

[0368] information of a second group to which the first device belongs and used for non-group paging;

[0369] A first group number for group paging;

[0370] A second group number for non-group paging;

[0371] Paging occasion PO configuration for group paging;

[0372] Carrier configuration for group paging.

[0373] In some embodiments, the paging configuration information satisfies at least one of the following:

[0374] The DRX cycle is greater than or equal to the energy collection duration required by the first device;

[0375] The eDRX cycle is greater than or equal to the energy collection time required by the first device;

[0376] The PTW parameters include at least one of the following: PTW length, PTW start frame;

[0377] The remaining duration after subtracting the PTW length from the eDRX cycle is greater than or equal to the energy collection duration required by the first device;

[0378] The information of the first group includes an identifier of the first group;

[0379] The information of the first group is configured by a third device;

[0380] The information of the second group is configured by a third device;

[0381] The information of the first group is determined based on the number of the first groups and the identifier of the first device;

[0382] The number of the first groups is equal to the number of device types;

[0383] The carrier configuration of the group paging includes at least one of the following: an identifier for configuring the first carrier associated with the first group, and a total number of carriers.

[0384] In some embodiments, the paging apparatus 300 further includes a sending unit, and before the receiving unit 310 receives the paging configuration information from the second device, the sending unit is further configured to:

[0385] A request message is sent to a third device, where the request message includes at least one of the following: a device type of the first device, at least one service type supported by the first device, a duration required for energy collection by the first device, PTW parameters expected by the first device, and a DRX cycle or eDRX cycle expected by the first device, wherein the request message is used to determine information of the first group or the second group.

[0386] In some embodiments, the paging configuration information is carried by at least one of the following: a system message, a received registration acceptance message, and a service acceptance message.

[0387] In some embodiments, the first device is an ambient Internet of Things (A-IoT) device.

[0388] It should be understood that the paging device 300 provided in the embodiment of the present application may correspond to the first device in the method embodiment of the present application, and the above-mentioned (or other) operations or functions of each unit in the paging device 300 are respectively for implementing the corresponding process performed by the first device in the method embodiment of Figure 7. For the sake of brevity, they will not be repeated here.

[0389] FIG9 shows a schematic block diagram of a paging device 400 according to an embodiment of the present application.

[0390] As shown in FIG9 , the paging device 400 includes:

[0391] The sending unit 410 is configured to send at least one paging message to the first device; the at least one paging message includes at least one of the following:

[0392] The first paging information is used to page a group of devices;

[0393] Second paging information, used to page one or more devices;

[0394] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0395] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0396] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0397] In some embodiments, the sending unit 410 is specifically configured to:

[0398] sending a group paging message for group paging to the first device, where the group paging message includes the first paging information; or

[0399] Sending the first paging information to the first device on a first paging occasion PO, where the first PO is different from the PO used to monitor the second paging information; or

[0400] Sending a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI to the first device, where the PDCCH scrambled by the first RNTI is used to indicate whether to receive a physical downlink shared channel PDSCH carrying the first paging information, and the first RNTI is different from the paging RNTI; or

[0401] The second device sends a first paging record to the first device, where the first paging record includes the first paging information; or

[0402] Sending first paging advance indication information PEI to the first device, where the first PEI includes at least one of the following: information indicating whether a first group to which the first device belongs and used for group paging receives a paging physical downlink control channel PDCCH, and the first paging information; or

[0403] The first paging information is sent to the first device on a first carrier associated with the first packet.

[0404] In some embodiments, the information of the target group includes at least one of the following: an identifier of the target group, and group selection information for selecting the target group.

[0405] In some embodiments, the sending unit 410 is specifically configured to:

[0406] Sending a second paging record to the first device, where the second paging record includes information of the target device; or

[0407] Sending second paging advance indication information PEI to the first device, where the second PEI includes at least one of the following: information indicating whether a second group to which the first device belongs and used for non-group paging receives a paging physical downlink control channel PDCCH, and the second paging information; or

[0408] The second paging information is sent to the first device over a second carrier associated with the first device.

[0409] In some embodiments, the information of the target device includes at least one of the following: an identifier of the target device, and an identifier of a second group to which the first device belongs and which is used for non-group paging.

[0410] In some embodiments, the second grouping is a grouping selected from at least one of the following:

[0411] a group associated with the paging occasion PO of the first device;

[0412] a packet associated with discontinuous reception (DRX) monitored by the first device;

[0413] a group associated with the paging time window PTW monitored by the first device;

[0414] A packet associated with the carrier monitored by the first device.

[0415] In some embodiments, the sending unit 410 is further configured to:

[0416] Sending paging configuration information to the first device;

[0417] The paging configuration information includes at least one of the following:

[0418] A monitoring indication, used to indicate whether the first device monitors the paging information according to the paging occasion PO position or whether to monitor the paging information continuously;

[0419] A paging monitoring interval, used to indicate an interval between two paging monitorings of the first device;

[0420] Discontinuous reception DRX cycle;

[0421] Enhanced discontinuous reception (eDRX) cycle;

[0422] Paging time window PTW parameters;

[0423] information of a first group to which the first device belongs and used for group paging;

[0424] information of a second group to which the first device belongs and used for non-group paging;

[0425] A first group number for group paging;

[0426] A second group number for non-group paging;

[0427] Paging occasion PO configuration for group paging;

[0428] Carrier configuration for group paging.

[0429] In some embodiments, the paging configuration information satisfies at least one of the following:

[0430] The DRX cycle is greater than or equal to the energy collection duration required by the first device;

[0431] The eDRX cycle is greater than or equal to the energy collection time required by the first device;

[0432] The PTW parameters include at least one of the following: PTW length, PTW start frame;

[0433] The remaining duration after subtracting the PTW length from the eDRX cycle is greater than or equal to the energy collection duration required by the first device;

[0434] The information of the first group includes an identifier of the first group;

[0435] The information of the first group is configured by a third device;

[0436] The information of the second group is configured by a third device;

[0437] The information of the first group is determined based on the number of the first groups and the identifier of the first device;

[0438] The number of the first groups is equal to the number of device types;

[0439] The carrier configuration of the group paging includes at least one of the following: an identifier for configuring the first carrier associated with the first group, and a total number of carriers.

[0440] In some embodiments, the paging apparatus 400 further includes a first receiving unit and a determining unit. Before the sending unit 410 sends the paging configuration information to the first device, the first receiving unit is configured to:

[0441] receiving a request message from the first device, the request message including at least one of the following: a device type of the first device, at least one service type supported by the first device, a duration required for energy collection by the first device, PTW parameters desired by the first device, and a DRX cycle or eDRX cycle desired by the first device;

[0442] The determining unit is configured to determine information of the first group based on the request message.

[0443] In some embodiments, the paging configuration information is carried by at least one of the following: a system message, a received registration acceptance message, and a service acceptance message.

[0444] In some embodiments, the paging apparatus 400 further includes a second receiving unit. Before the sending unit 410 sends the paging configuration information to the first device, the method further includes:

[0445] The paging configuration information is received from a third device.

[0446] In some embodiments, the first device is an ambient Internet of Things (A-IoT) device.

[0447] It should be understood that the paging device 400 provided in the embodiment of the present application may correspond to the second device in the method embodiment of the present application, and the above-mentioned (or other) operations or functions of each unit in the paging device 400 are respectively for implementing the corresponding process of the second device in the method embodiment of Figure 7. For the sake of brevity, they will not be repeated here.

[0448] The paging device in the embodiment of the present application can be an electronic device, such as an electronic device with an operating system, or a component in an electronic device, such as an integrated circuit or chip. The electronic device can be a first device or a second device, the first device can be a terminal or other device, and the second device can be a network-side device or other device. For example, the terminal can include but is not limited to the types of terminals 11 listed above, the network-side device can include but is not limited to the types of network-side devices 12 listed above, and other devices can be servers, network attached storage (NAS), etc., which are not specifically limited in the embodiment of the present application.

[0449] The paging device provided in the embodiment of the present application can implement the various processes involved in the method embodiment of Figure 7 and achieve the same technical effects. To avoid repetition, they will not be described here.

[0450] FIG10 is an example of a communication device 500 provided in an embodiment of the present application.

[0451] As shown in Figure 10, the communication device 500 includes a processor 501 and a memory 502. The memory 502 stores a program or instruction that can be executed on the processor 501. When the program or instruction is executed by the processor 501, the various steps of the above-mentioned paging method embodiment are implemented. For example, when the communication device 500 is a first device, when the program or instruction is executed by the processor 501, the various steps performed by the first device in the above-mentioned paging method embodiment are implemented, and the same technical effect can be achieved. When the communication device 500 is a second device, when the program or instruction is executed by the processor 501, the various steps performed by the second device in the above-mentioned paging method embodiment are implemented, and the same technical effect can be achieved. To avoid repetition, they are not further described here.

[0452] The present application also provides a first device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps in the method embodiment shown in FIG7 . This first device embodiment corresponds to the method embodiment on the first device side, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this first device embodiment and can achieve the same technical effects.

[0453] The present application also provides a second device, including a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to execute a program or instruction to implement the steps of the method embodiment shown in FIG7 . This second device embodiment corresponds to the method embodiment on the second device side, and each implementation process and implementation method of the aforementioned method embodiment are applicable to this second device embodiment and can achieve the same technical effects.

[0454] FIG11 is a schematic diagram of the hardware structure of a terminal implementing an embodiment of the present application.

[0455] As shown in Figure 11, the terminal 600 includes but is not limited to: a radio frequency unit 601, a network module 602, an audio output unit 603, an input unit 604, a sensor 605, a display unit 606, a user input unit 607, an interface unit 606, a memory 609 and at least some of the components of the processor 610.

[0456] Those skilled in the art will appreciate that the terminal 600 may also include a power supply (such as a battery) to power various components. The power supply may be logically connected to the processor 610 through a power management system, thereby implementing functions such as charging, discharging, and power consumption management through the power management system. The terminal structure shown in FIG11 does not constitute a limitation of the terminal. The terminal may include more or fewer components than shown, or combine certain components, or arrange the components differently, which will not be described in detail here.

[0457] It should be understood that in an embodiment of the present application, the input unit 604 may include a graphics processing unit (GPU) 6041 and a microphone 6042, and the graphics processor 6041 processes the image data of a static picture or video obtained by an image capture device (such as a camera) in a video capture mode or an image capture mode. The display unit 606 may include a display panel 6061, and the display panel 6061 may be configured in the form of a liquid crystal display, an organic light emitting diode, etc. The user input unit 607 includes a touch panel 6071 and at least one of other input devices 6072. The touch panel 6071 is also called a touch screen. The touch panel 6071 may include two parts: a touch detection device and a touch controller. Other input devices 6072 may include, but are not limited to, a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, and a joystick, which will not be repeated here.

[0458] In the embodiment of the present application, after receiving downlink data from a network-side device, the radio frequency unit 601 may transmit the data to the processor 610 for processing. Furthermore, the radio frequency unit 601 may send uplink data to the network-side device. Typically, the radio frequency unit 601 includes, but is not limited to, an antenna, an amplifier, a transceiver, a coupler, a low-noise amplifier, a duplexer, and the like.

[0459] The memory 609 can be used to store software programs or instructions and various data. The memory 609 may mainly include a first storage area for storing programs or instructions and a second storage area for storing data, wherein the first storage area may store an operating system, applications or instructions required for at least one function (such as a sound playback function, an image playback function, etc.). In addition, the memory 609 may include a volatile memory 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), a static random access memory (SRAM), a dynamic random access memory (DRAM), a synchronous dynamic random access memory (SDRAM), a double data rate synchronous dynamic random access memory (DDRSDRAM), an enhanced synchronous dynamic random access memory (ESDRAM), a synchronous link dynamic random access memory (SLDRAM), and a direct memory bus random access memory (DRRAM). The memory 609 in the embodiment of the present application includes but is not limited to these and any other suitable types of memory.

[0460] Processor 610 may include one or at least two processing units. Optionally, processor 610 integrates an application processor and a modem processor. The application processor primarily handles operations related to the operating system, user interface, and application programs, while the modem processor primarily processes wireless communication signals, such as a baseband processor. It is understood that the modem processor may not be integrated into processor 610.

[0461] As an implementation, the terminal 600 is a first device, wherein the radio frequency unit 601 is configured to receive at least one paging message from the second device; the at least one paging message includes at least one of the following:

[0462] The first paging information is used to page a group of devices;

[0463] Second paging information, used to page one or more devices;

[0464] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0465] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0466] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0467] As another implementation, the terminal 600 is a second device, wherein the radio frequency unit 601 is configured to send at least one paging message to the first device; the at least one paging message includes at least one of the following:

[0468] The first paging information is used to page a group of devices;

[0469] Second paging information, used to page one or more devices;

[0470] The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, and a type of device being paged; the target group includes a first group to which the first device belongs and used for group paging;

[0471] The second paging information includes at least one of the following: information of a target device, information indicating whether the paging type is paging to one device or paging to multiple devices, a paging reason, and a type of device being paged; the target device includes the first device;

[0472] The paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update; the transmission type includes at least one of the following: device terminated DT, device initiated-device terminated triggered DO-DTT; or, the paging device type includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

[0473] In this embodiment, at least one paging message is received from a second device; the at least one paging message includes at least one of the following: a first paging message for paging a group of devices; and a second paging message for paging one or more devices. The introduction of the first paging message for paging a group of devices ensures paging efficiency and performance for large-scale deployments. Furthermore, the combination of the second paging message for paging one or more devices with the first paging message ensures paging flexibility.

[0474] In addition, when the first paging information includes a paging reason, the first device can decide whether to respond to the first paging information based on the paging reason, thereby reducing false alarms in paging. When the first paging information includes information indicating that the paging type is group paging, the first device can decide whether to decode the content of the paging message based on the paging type, thereby reducing false alarms in paging. Since the first device has multiple device types, when the first paging information includes the device type of the paging, it can be classified by type to avoid the first device from receiving paging that does not match its own device type, thereby reducing false alarms in paging. That is, the content in the first paging information can prevent the first device from receiving unnecessary paging information, thereby reducing the power consumption of the first device.

[0475] Similarly, when the second paging information includes a paging reason, the first device can decide whether to respond to the second paging information based on the paging reason, thereby reducing false alarms of paging. When the second paging information includes information indicating whether the paging type is paging for one device or paging for multiple devices, the first device can decide whether to decode the content of the paging message based on the paging type, thereby reducing false alarms of paging. Since the first device has multiple device types, when the second paging information includes the device type of the paging, it can be classified by type to avoid the first device from receiving paging that does not match its own device type, thereby reducing false alarms of paging. That is, the content in the second paging information can prevent the first device from receiving unnecessary paging information, thereby reducing the power consumption of the first device.

[0476] It can be understood that the implementation process of each implementation method mentioned in this embodiment can refer to the relevant description of the method embodiment and achieve the same or corresponding technical effects. To avoid repetition, it will not be described here.

[0477] FIG12 is an example of a network-side device 700 provided in an embodiment of the present application.

[0478] As shown in Figure 12, network-side device 700 includes an antenna 71, a radio frequency device 72, a baseband device 73, a processor 74, and a memory 75. Antenna 71 is connected to radio frequency device 72. In the uplink direction, radio frequency device 72 receives information via antenna 71 and sends the received information to baseband device 73 for processing. In the downlink direction, baseband device 73 processes the information to be transmitted and sends it to radio frequency device 72. Radio frequency device 72 processes the received information and then sends it through antenna 71.

[0479] The method executed by the network-side device in the above embodiment may be implemented in the baseband device 73 , which includes a baseband processor.

[0480] The baseband device 73 may include, for example, at least one baseband board, on which at least two chips are provided, as shown in FIG9 , one of the chips being, for example, a baseband processor, which is connected to the memory 75 through a bus interface to call the program in the memory 75 and execute the corresponding process of the network side device in the above method embodiment.

[0481] The network side device may further include a network interface 76, which is, for example, a Common Public Radio Interface (CPRI).

[0482] Specifically, the network side device 700 of the embodiment of the present application also includes: instructions or programs stored in the memory 75 and executable on the processor 74. The processor 74 calls the instructions or programs in the memory 75 to execute the steps performed by each unit in the paging device shown in FIG9 and achieve the same technical effect. To avoid repetition, they will not be described here.

[0483] An embodiment of the present application further provides a readable storage medium, on which a program or instruction is stored. When the program or instruction is executed by a processor, each process of the above-mentioned paging method embodiment is implemented and the same technical effect can be achieved. To avoid repetition, it will not be repeated here.

[0484] The processor is the processor in the terminal described in the above embodiment. The readable storage medium includes a computer-readable storage medium, such as a computer read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk. In some examples, the readable storage medium may be a non-transitory readable storage medium.

[0485] An embodiment of the present application further provides a chip, which includes a processor and a communication interface, wherein the communication interface is coupled to the processor, and the processor is configured to run programs or instructions to implement the various processes of the above-mentioned paging method embodiment and achieve the same technical effect. To avoid repetition, these are not described herein.

[0486] It should be understood that the chip mentioned in the embodiments of the present application can also be called a system-level chip, a system chip, a chip system or a system-on-chip chip, etc.

[0487] An embodiment of the present application further provides a computer program / program product, which is stored in a storage medium and is executed by at least one processor to implement the various processes of the above-mentioned paging method embodiment and can achieve the same technical effect. To avoid repetition, it is not described here.

[0488] An embodiment of the present application also provides a communication system, including: a first device and a second device, wherein the first device can be used to execute the steps performed by the first device in the paging method described above, and the second device can be used to execute the steps performed by the second device in the paging method described above.

[0489] It should be noted that, in this article, the terms "comprise", "include" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements includes not only those elements, but also includes other elements that are not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, an element defined by the sentence "comprises a..." does not exclude the presence of other identical elements in the process, method, article or device comprising the element. In addition, it should be pointed out that the scope of the methods and devices in the embodiments of the present application is not limited to performing functions in the order shown or discussed, and may also include performing functions in a substantially simultaneous manner or in the opposite order according to the functions involved. For example, the described method may be performed in an order different from that described, and various steps may also be added, omitted or combined. In addition, the features described with reference to certain examples may be combined in other examples.

[0490] Through the description of the above embodiments, those skilled in the art can clearly understand that the above-mentioned method-related embodiments can be implemented by means of a computer software product plus a necessary general-purpose hardware platform, or of course, by hardware. The computer software product is stored in a storage medium (such as ROM, RAM, magnetic disk, optical disk, etc.) and includes a number of instructions for causing the first device or the second device to execute the method described in each embodiment of the present application.

[0491] The embodiments of the present application are described above in conjunction with the accompanying drawings, but the present application is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the guidance of this application, ordinary technicians in this field can also make many forms of implementation methods without departing from the purpose of this application and the scope of protection of the claims. These implementation methods are all within the protection of this application.

Claims

1. A paging method, wherein, including: A first device receives at least one paging message from a second device; The at least one paging message includes at least one of the following: A first paging message for paging a group of devices; A second paging message for paging one or more devices; The first paging message includes at least one of the following: information of a target group, information indicating that the paging type is group paging, a paging reason, a type of device being paged; the target group includes a first group to which the first device belongs and is used for group paging; The second paging message includes at least one of the following: information of a target device, information indicating that the paging type is paging for one device or paging for multiple devices, a paging reason, a type of device being paged; the target device includes the first device; Wherein, the paging reason includes at least one of the following: a service type, a transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update, and the transmission type includes at least one of the following: device termination DT, device initiated - device termination triggered DO - DTT; or, the type of device being paged includes at least one of the following: a passive device with energy storage, a semi - passive device with energy storage, an active device, a passive device without energy storage.

2. The method according to claim 1, wherein, The information of the target group includes at least one of the following: an identifier of the target group, group selection information for selecting the target group.

3. The method according to claim 1 or 2, wherein The first device receives at least one paging message from the second device, including: The first device receives a group paging message for group paging from the second device, and the group paging message includes the first paging message; or The first device listens for the first paging message at a first paging occasion PO, and the first PO is different from the PO for listening for the second paging message; or The first device receives a physical downlink control channel PDCCH scrambled by a first radio network temporary identifier RNTI from the second device, and the first RNTI - scrambled PDCCH is used to indicate whether to receive a physical downlink shared channel PDSCH carrying the first paging message, and the first RNTI is different from a paging RNTI; or The first device receives a first paging record from the second device, and the first paging record includes the first paging message; or The first device receives first paging early indication information PEI from the second device, and the first PEI includes at least one of the following: information indicating whether a first group to which the first device belongs and is used for group paging receives a paging physical downlink control channel PDCCH, the first paging message; or The first device listens for the first paging message on a first carrier associated with the first group.

4. The method according to any one of claims 1 to 3, wherein The information of the target device includes at least one of the following: an identifier of the target device, an identifier of a second group to which the first device belongs and is used for non - group paging.

5. The method according to any one of claims 1 to 4, wherein, The first device receives at least one paging message from the second device, including: The first device receives a second paging record from the second device, and the second paging record includes the second paging message; or The first device receives second paging early indication information (PEI) from the second device, and the second PEI includes at least one of the following: information for indicating whether a second packet to which the first device belongs and which is for non-group paging receives a paging physical downlink control channel (PDCCH), the second paging information; or The first device monitors the second paging information on a second carrier associated with the first device.

6. The method according to claim 4 or 5, wherein The second packet is a packet in at least one of the following: A packet associated with the paging occasion (PO) of the first device A packet associated with the discontinuous reception (DRX) monitored by the first device A packet associated with the paging time window (PTW) monitored by the first device A packet associated with the carrier monitored by the first device 7. The method according to any one of claims 1 to 6, wherein The method further includes: The first device receives paging configuration information from the second device. The paging configuration information includes at least one of the following: A monitoring indication for indicating whether the first device monitors paging information according to the position of the paging occasion (PO) or continuously monitors paging information A paging monitoring interval for indicating the interval between two paging monitors of the first device A discontinuous reception (DRX) period An enhanced discontinuous reception (eDRX) period Paging time window (PTW) parameters Information on a first packet to which the first device belongs and which is for group paging Information on a second packet to which the first device belongs and which is for non-group paging The number of first packets for group paging The number of second packets for non-group paging Paging occasion (PO) configuration for group paging Carrier configuration for group paging 8. The method according to claim 7, wherein The paging configuration information satisfies at least one of the following: The DRX period is greater than or equal to the energy harvesting duration required by the first device. The eDRX period is greater than or equal to the energy harvesting duration required by the first device. The PTW parameters include at least one of the following: PTW length, PTW start frame. The remaining duration after subtracting the PTW length from the eDRX period is greater than or equal to the energy harvesting duration required by the first device. The information on the first packet includes the identifier of the first packet. The information on the first packet is configured by a third device. The information on the second packet is configured by a third device. The information on the first packet is determined based on the number of first packets and the identifier of the first device. The number of first packets is equal to the number of device types. The carrier configuration for group paging includes at least one of the following: an identifier for configuring a first carrier associated with the first packet, the total number of carriers.

9. The method according to claim 7 or 8, wherein Before the first device receives the paging configuration information from the second device, the method further includes: The first device sends a request message to a third device, and the request message includes at least one of the following: the device type of the first device, at least one service type supported by the first device, the energy harvesting duration required by the first device, the PTW parameters expected by the first device, the DRX period or eDRX period expected by the first device, and the request message is used to determine the information on the first packet or the second packet.

10. The method according to any one of claims 7 to 9, wherein, The paging configuration information is carried by at least one of the following: system message, received registration acceptance message, service acceptance message.

11. The method according to any one of claims 1 to 10, wherein The first device is an Ambient Internet of Things (A-IoT) device.

12. A paging method, wherein, Including: The second device sends at least one paging message to the first device. The at least one paging message includes at least one of the following: The first paging message, which is used to page a group of devices. The second paging message, which is used to page one or more devices. The first paging message includes at least one of the following: information of the target group, information indicating that the paging type is group paging, paging reason, type of the paged device; the target group includes the first group to which the first device belongs and is used for group paging. The second paging message includes at least one of the following: information of the target device, information indicating that the paging type is paging for one device or paging for multiple devices, paging reason, type of the paged device; the target device includes the first device. Wherein, the paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update, and the transmission type includes at least one of the following: Device Termination (DT), Device Originated - Device Termination Trigger (DO-DTT); or, the type of the paged device includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

13. The method according to claim 12, wherein, The information of the target group includes at least one of the following: identifier of the target group, group selection information for selecting the target group.

14. The method according to claim 12 or 13, wherein, The second device sending at least one paging message to the first device includes: The second device sends a group paging message for group paging to the first device, and the group paging message includes the first paging message; or The second device sends the first paging message to the first device at a first paging occasion (PO), and the first PO is different from the PO for listening to the second paging message; or The second device sends a Physical Downlink Control Channel (PDCCH) scrambled by a first Radio Network Temporary Identifier (RNTI) to the first device, and the PDCCH scrambled by the first RNTI is used to indicate whether to receive a Physical Downlink Shared Channel (PDSCH) carrying the first paging message, and the first RNTI is different from the paging RNTI; or The second device sends a first paging record to the first device, and the first paging record includes the first paging message; or The second device sends a first Paging Early Indication (PEI) to the first device, and the first PEI includes at least one of the following: information indicating whether the first group to which the first device belongs and is used for group paging receives the paging Physical Downlink Control Channel (PDCCH), the first paging message; or The second device sends the first paging message to the first device on a first carrier associated with the first group.

15. The method according to any one of claims 12 to 14, wherein, The information of the target device includes at least one of the following: the identifier of the target device, the identifier of the second packet to which the first device belongs and that is used for non-group paging.

16. The method according to any one of claims 12 to 15, wherein, The second device sends at least one paging message to the first device, including: The second device sends a second paging record to the first device, where the second paging record includes the information of the target device; or The second device sends a second paging early indication information PEI to the first device, where the second PEI includes at least one of the following: information for indicating whether the second packet to which the first device belongs and that is used for non-group paging receives a paging physical downlink control channel PDCCH, the second paging message; or The second device sends the second paging message to the first device on a second carrier associated with the first device.

17. The method according to claim 15 or 16, wherein The second packet is a packet in at least one of the following: The packet associated with the paging occasion PO of the first device; The packet associated with the discontinuous reception DRX listened by the first device; The packet associated with the paging time window PTW listened by the first device; The packet associated with the carrier listened by the first device.

18. The method according to any one of claims 12 to 17, wherein The method further includes: The second device sends paging configuration information to the first device; The paging configuration information includes at least one of the following: A listening indication for indicating whether the first device listens to paging messages according to the position of the paging occasion PO or listens to paging messages continuously; A paging listening interval for indicating the interval between two paging listenings of the first device; A discontinuous reception DRX period; An enhanced discontinuous reception eDRX period; Paging time window PTW parameters; The information of the first packet to which the first device belongs and that is used for group paging; The information of the second packet to which the first device belongs and that is used for non-group paging; The number of first packets used for group paging; The number of second packets used for non-group paging; The paging occasion PO configuration for group paging; The carrier configuration for group paging.

19. The method according to claim 18, wherein The paging configuration information satisfies at least one of the following: The DRX period is greater than or equal to the energy harvesting duration required by the first device; The eDRX period is greater than or equal to the energy harvesting duration required by the first device; The PTW parameters include at least one of the following: PTW length, PTW start frame; The remaining duration after subtracting the PTW length from the eDRX period is greater than or equal to the energy harvesting duration required by the first device; The information of the first packet includes the identifier of the first packet; The information of the first packet is configured by a third device; The information of the second packet is configured by a third device; The information of the first packet is determined based on the number of first packets and the identifier of the first device; The number of first packets is equal to the number of device types; The carrier configuration for group paging includes at least one of the following: the identifier of the first carrier configured to be associated with the first packet, the total number of carriers.

20. The method according to claim 18 or 19, wherein Before the second device sends the paging configuration information to the first device, the method further includes: The second device receives a request message from the first device, and the request message includes at least one of the following: the device type of the first device, at least one service type supported by the first device, the duration required for energy harvesting of the first device, the PTW parameters expected by the first device, the DRX period or eDRX period expected by the first device; The second device determines the information of the first packet based on the request message.

21. The method according to any one of claims 18 to 20, wherein, The paging configuration information is carried by at least one of the following: system message, received registration acceptance message, service acceptance message.

22. The method according to any one of claims 12 to 21, wherein Before the second device sends the paging configuration information to the first device, the method further includes: The second device receives the paging configuration information from a third device.

23. The method according to any one of claims 12 to 22, wherein The first device is an Ambient Internet of Things (A-IoT) device.

24. A paging device, wherein, Including: A receiving unit, configured to receive at least one paging information from a second device; The at least one paging information includes at least one of the following: The first paging information, used to page a group of devices; The second paging information, used to page one or more devices; The first paging information includes at least one of the following: information of a target group, information indicating that the paging type is group paging, paging reason, device type to be paged; the target group includes a first group to which the first device belongs and is used for group paging; The second paging information includes at least one of the following: information of a target device, information indicating that the paging type is paging for one device or paging for multiple devices, paging reason, device type to be paged; the target device includes the first device; Wherein, the paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update, and the transmission type includes at least one of the following: device termination (DT), device initiated - device termination trigger (DO-DTT); or, the device type to be paged includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

25. The apparatus according to claim 24, wherein The receiving unit is specifically configured to: Receive a group paging message for group paging from the second device, where the group paging message includes the first paging information; or Listen for the first paging information at a first paging occasion (PO), where the first PO is different from the PO for listening for the second paging information; or Receive a physical downlink control channel (PDCCH) scrambled by a first radio network temporary identity (RNTI) from the second device, where the first RNTI-scrambled PDCCH is used to indicate whether to receive a physical downlink shared channel (PDSCH) carrying the first paging information, and the first RNTI is different from the paging RNTI; Or Receive a first paging record from the second device, where the first paging record includes the first paging information; Or Receive first paging early indication information (PEI) from the second device, where the first PEI includes at least one of the following: information for indicating whether a first packet to which the first device belongs and used for group paging receives a paging physical downlink control channel (PDCCH), the first paging information; or Monitor the first paging information on a first carrier associated with the first packet.

26. A paging device, wherein, Comprising: A sending unit, configured to send at least one paging information to a first device; The at least one paging information includes at least one of the following: First paging information, used to page a group of devices; Second paging information, used to page one or more devices; The first paging information includes at least one of the following: information of a target packet, information for indicating that the paging type is group paging, paging reason, device type to be paged; the target packet includes a first packet to which the first device belongs and used for group paging; The second paging information includes at least one of the following: information of a target device, information for indicating that the paging type is paging for one device or paging for multiple devices, paging reason, device type to be paged; the target device includes the first device; Wherein, the paging reason includes at least one of the following: service type, transmission type; the service type includes at least one of the following: inventory, sensing, positioning, command, mobility update, and the transmission type includes at least one of the following: device termination (DT), device-initiated - device-termination trigger (DO-DTT); or, the device type to be paged includes at least one of the following: passive device with energy storage, semi-passive device with energy storage, active device, passive device without energy storage.

27. The apparatus according to claim 26, wherein, The sending unit is specifically configured to: Send a group paging message for group paging to the first device, where the group paging message includes the first paging information; or Send the first paging information to the first device at a first paging occasion (PO), where the first PO is different from the PO for monitoring the second paging information; or Send a physical downlink control channel (PDCCH) scrambled by a first radio network temporary identifier (RNTI) to the first device, where the first RNTI-scrambled PDCCH is used to indicate whether to receive a physical downlink shared channel (PDSCH) carrying the first paging information, and the first RNTI is different from the paging RNTI; Or Send a first paging record to the first device, where the first paging record includes the first paging information; Or Send first paging early indication information (PEI) to the first device, where the first PEI includes at least one of the following: information for indicating whether a first packet to which the first device belongs and used for group paging receives a paging PDCCH, the first paging information; Or Send the first paging information to the first device on a first carrier associated with the first packet.

28. A first device, wherein, Comprising a transceiver, a processor, and a memory, where the memory stores a program or instruction that can run on the processor, and when the program or instruction is executed by the processor, it implements the paging method according to any one of claims 1 to 11.

29. A second device, wherein, It includes a transceiver, a processor, and a memory. The memory stores programs or instructions that can run on the processor. When the programs or instructions are executed by the processor, the paging method according to any one of claims 12 to 23 is implemented.

30. A readable storage medium, wherein, Programs or instructions are stored on the readable storage medium. When the programs or instructions are executed by a processor, the paging method according to any one of claims 1 to 11 is implemented, or the paging method according to any one of claims 12 to 23 is implemented.

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