Method and apparatus for wireless communication

Abstract

The application provides a method and device for wireless communication, which helps to improve the accessibility of a communication device. The method comprises: a first communication device receiving a first notification sent by a second communication device; the first communication device performing an alarm prompt according to the first notification; wherein the first notification is used to indicate one or more pages in a first time period, and the one or more pages include a page that the first communication device fails to successfully receive and / or a page that the first communication device cannot successfully receive in a current state.

Description

Technical Field

[0001] This application relates to the field of communication technology, and more specifically, to a method and apparatus for wireless communication. Background Technology

[0002] In certain scenarios (e.g., discontinuous coverage of non-terrestrial networks (NTNs)), terminal devices may be unable to receive paging from the network side or be unaware of lost paging, potentially missing important information. Therefore, improving the reachability of terminal devices or enabling them to recognize lost paging is a pressing technical problem that needs to be solved. Summary of the Invention

[0003] This application provides a method and apparatus for wireless communication. The various aspects related to the embodiments of this application are described below.

[0004] In a first aspect, a method for wireless communication is provided, comprising: a first communication device receiving a first notification sent by a second communication device; the first communication device providing an alarm notification based on the first notification; wherein the first notification is used to indicate one or more paging requests within a first time period, the one or more paging requests including paging requests that the first communication device has not successfully received and / or paging requests that the first communication device is unable to successfully receive in the current state.

[0005] In a second aspect, a method for wireless communication is provided, comprising: a second communication device sending a first notification to a first communication device; wherein the first notification is used for the first communication device to issue an alarm, and the first notification is also used to indicate one or more paging within a first time period, the one or more paging including paging that the first communication device has not successfully received and / or paging that the first communication device is unable to successfully receive in the current state.

[0006] Thirdly, an apparatus for wireless communication is provided, the apparatus being a first communication device, the apparatus comprising: a receiving unit for receiving a first notification sent by a second communication device; and an execution unit for providing an alarm notification based on the first notification; wherein the first notification is used to indicate one or more paging requests within a first time period, the one or more paging requests including paging requests that the first communication device has not successfully received and / or paging requests that the first communication device is unable to successfully receive in the current state.

[0007] Fourthly, an apparatus for wireless communication is provided, the apparatus being a second communication device, the apparatus comprising: a transmitting unit for sending a first notification to a first communication device; wherein the first notification is used for the first communication device to issue an alarm, and the first notification is further used to indicate one or more paging within a first time period, the one or more paging including paging that the first communication device has not successfully received and / or paging that the first communication device cannot successfully receive in the current state.

[0008] Fifthly, a communication device is provided, including a memory and a processor, the memory for storing a program, and the processor for calling the program in the memory to perform the method as described in the first or second aspect.

[0009] A sixth aspect provides an apparatus including a processor for calling a program from memory to perform the method as described in the first or second aspect.

[0010] A seventh aspect provides a chip including a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in the first or second aspect.

[0011] Eighthly, a computer-readable storage medium is provided having a program stored thereon that causes a computer to perform the method as described in the first or second aspect.

[0012] Ninth aspect, a computer program product is provided, including a program that causes a computer to perform the method as described in the first or second aspect.

[0013] In a tenth aspect, a computer program is provided that causes a computer to perform the method as described in the first or second aspect.

[0014] In this embodiment, the first communication device can determine, based on the first notification, that a paging message has not been successfully received or may be unsuccessfully received, and thus issue an alarm. Therefore, when the first communication device loses a paging message or is in a state where it cannot normally receive paging messages, the second communication device can remind the first communication device through the first notification. Furthermore, the first communication device can alert the user through the alarm notification so that the user can determine whether to quickly change the state of the terminal device to one where it can normally receive paging messages. Attached Figure Description

[0015] Figure 1 This is the wireless communication system used in the embodiments of this application.

[0016] Figure 2 This is an NTN system used in the embodiments of this application.

[0017] Figure 3 This is another NTN system used in the embodiments of this application.

[0018] Figure 4 This is a schematic diagram of a possible scenario where the terminal device is in a state of discontinuous coverage.

[0019] Figure 5 This is a schematic diagram of an energy-saving configuration introduced by the Internet of Things.

[0020] Figure 6 This is a schematic diagram of another energy-saving configuration introduced by the Internet of Things.

[0021] Figure 7 This is a flowchart illustrating a method for wireless communication provided in an embodiment of this application.

[0022] Figure 8 yes Figure 7 A schematic diagram of one possible implementation of the method shown.

[0023] Figure 9 yes Figure 7 A schematic diagram of another possible implementation of the method shown.

[0024] Figure 10 yes Figure 7 A schematic diagram of another possible implementation of the method shown.

[0025] Figure 11 This is a schematic diagram of a device for wireless communication provided in an embodiment of this application.

[0026] Figure 12 This is a schematic diagram of another device for wireless communication provided in an embodiment of this application.

[0027] Figure 13 This is a schematic diagram of the structure of a communication device provided in an embodiment of this application. Detailed Implementation

[0028] The technical solutions of the embodiments of this application will now be described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art without creative effort regarding the embodiments of this application are within the scope of protection of this application.

[0029] The embodiments of this application can be applied to various communication systems. For example, the embodiments of this application can be applied to Global System for Mobile Communication (GSM), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), General Packet Radio Service (GPRS), Long Term Evolution (LTE), Advanced Long Term Evolution (LTE-A), New Radio (NR), evolution systems of NR, LTE-based access to unlicensed spectrum (LTE-U), NR-based access to unlicensed spectrum (NR-U), NTN, Universal Mobile Telecommunication System (UMTS), Wireless Local Area Networks (WLAN), Wireless Fidelity (WiFi), and 5th-generation (5G) systems. The embodiments of this application can also be applied to other communication systems, such as future communication systems. These future communication systems could be, for example, sixth-generation (6G) mobile communication systems or satellite communication systems.

[0030] Traditional communication systems support a limited number of connections and are easy to implement. However, with the development of communication technology, communication systems can support not only traditional cellular communication but also one or more other types of communication. For example, a communication system can support one or more of the following communication methods: device-to-device (D2D) communication, machine-to-machine (M2M) communication, machine-type communication (MTC), enhanced machine-type communication (eMTC), vehicle-to-vehicle (V2V) communication, and vehicle-to-everything (V2X) communication. The embodiments of this application can also be applied to communication systems that support the above-mentioned communication methods.

[0031] The communication system in this application embodiment can be applied to carrier aggregation (CA) scenarios, dual connectivity (DC) scenarios, and standalone (SA) network deployment scenarios.

[0032] The communication system in this application embodiment can be applied to unlicensed spectrum. This unlicensed spectrum can also be considered a shared spectrum. Alternatively, the communication system in this application embodiment can also be applied to licensed spectrum. This licensed spectrum can also be considered a dedicated spectrum.

[0033] The embodiments of this application can be applied to NTN systems. As an example, the NTN system can be a 4G-based NTN system, an NR-based NTN system, an Internet of Things (IoT)-based NTN system, or a narrowband Internet of Things (NB-IoT)-based NTN system.

[0034] A communication system may include one or more terminal devices. The terminal devices mentioned in the embodiments of this application may also be referred to as user equipment (UE), access terminal, user unit, user station, mobile station, mobile station (MS), mobile terminal (MT), remote station, remote terminal, mobile device, user terminal, terminal, wireless communication equipment, user agent, or user device, etc.

[0035] In some embodiments, the terminal device may be a station (ST) in a WLAN. In some embodiments, the terminal device may be a cellular phone, cordless phone, session initiation protocol (SIP) phone, wireless local loop (WLL) station, personal digital assistant (PDA) device, handheld device with wireless communication capabilities, computing device or other processing device connected to a wireless modem, in-vehicle device, wearable device, terminal device in a next-generation communication system (e.g., NR system), or terminal device in a future public land mobile network (PLMN), etc.

[0036] In some embodiments, the terminal device may be a device that provides voice and / or data connectivity to a user. For example, the terminal device may be a handheld device, an in-vehicle device, etc., with wireless connectivity. As some specific examples, the terminal device may be a mobile phone, tablet, laptop, PDA, mobile internet device (MID), wearable device, virtual reality (VR) device, augmented reality (AR) device, wireless terminal in industrial control, wireless terminal in self-driving, wireless terminal in remote medical surgery, wireless terminal in smart grid, wireless terminal in transportation safety, wireless terminal in smart city, wireless terminal in smart home, etc.

[0037] In some embodiments, the terminal device may be deployed on land. For example, the terminal device may be deployed indoors or outdoors. In some embodiments, the terminal device may be deployed on water, such as on a ship. In some embodiments, the terminal device may be deployed in the air, such as on an airplane, balloon, or satellite.

[0038] In addition to terminal devices, the communication system may also include one or more network devices. In this embodiment, the network device can be a device for communicating with the terminal device; this network device may also be referred to as an access network device or a radio access network device. For example, the network device may be a base station. In this embodiment, the network device may refer to a radio access network (RAN) node (or device) that connects the terminal device to the wireless network. A base station can broadly encompass, or be replaced by, various names including: NodeB, evolved NodeB (eNB), next-generation NodeB (gNB), relay station, access point, transmitting and receiving point (TRP), transmitting point (TP), master station (MeNB), secondary station (SeNB), multi-mode radio (MSR) node, home base station, network controller, access node, radio node, access point (AP), transmission node, transceiver node, baseband unit (BBU), remote radio unit (RRU), active antenna unit (AAU), remote radio head (RRH), central unit (CU), distributed unit (DU), positioning node, etc. A base station can be a macro base station, micro base station, relay node, donor node, or similar entities, or combinations thereof. A base station can also refer to a communication module, modem, or chip installed within the aforementioned equipment or apparatus. A base station can also be a mobile switching center, a device that performs base station functions in D2D, V2X, and M2M communications, a network-side device in a 6G network, or a device that performs base station functions in future communication systems. A base station can support networks using the same or different access technologies. The embodiments of this application do not limit the specific technologies or device forms used in the network equipment.

[0039] Base stations can be fixed or mobile. For example, a helicopter or drone can be configured to act as a mobile base station, and one or more cells can move depending on the location of the mobile base station. In other examples, a helicopter or drone can be configured as a device to communicate with another base station.

[0040] In some deployments, the network device in this application embodiment may refer to a CU or a DU, or the network device may include both a CU and a DU. The gNB may also include an AAU.

[0041] By way of example and not limitation, in the embodiments of this application, the network device may have mobility characteristics; for example, the network device may be a mobile device. In some embodiments of this application, the network device may be a satellite or a balloon station. In some embodiments of this application, the network device may also be a base station located on land, water, or other similar locations.

[0042] In this embodiment, the network device can provide services to a cell. The terminal device communicates with the network device through the transmission resources (e.g., frequency domain resources, or spectrum resources) used by the cell. The cell can be the cell corresponding to the network device (e.g., a base station). The cell can belong to a macro base station or to a base station corresponding to a small cell. The small cell can include: metro cell, micro cell, pico cell, femto cell, etc. These small cells have the characteristics of small coverage area and low transmission power, and are suitable for providing high-speed data transmission services.

[0043] For example, Figure 1 This is a schematic diagram of the architecture of a communication system provided in an embodiment of this application. Figure 1 As shown, the communication system 100 may include a network device 110, which may be a device that communicates with a terminal device 120 (or a communication terminal, terminal). The network device 110 can provide communication coverage for a specific geographical area and can communicate with terminal devices located within that coverage area.

[0044] Figure 1 An exemplary network device and two terminal devices are shown. In some embodiments of this application, the communication system 100 may include multiple network devices and each network device may include other numbers of terminal devices within its coverage area, without limitation.

[0045] For example, Figure 2 This is a schematic diagram of an architecture of the NTN system mentioned above. Figure 2 The NTN system 200 shown uses satellite 210 as its airborne platform. For example... Figure 2 As shown, the satellite radio access network includes a satellite 210, a service link 220, a feeder link 230, terminal equipment 240, a gateway (GW) 250, and a network 260 including base stations and a core network.

[0046] Satellite 210 is a spacecraft based on a space platform. Service link 220 refers to the link between satellite 210 and terminal equipment 240. Feeder link 230 refers to the link between gateway 250 and satellite 210. The Earth-based gateway 250 connects satellite 210 to the base station or core network, depending on the NTN architecture chosen.

[0047] Figure 2 The NTN architecture shown is a bend-type transponder architecture. In this architecture, the base station is located on Earth behind gateway 250, and satellite 210 acts as a relay. Satellite 210 operates as a relay that forwards signals from feeder link 230 to serving link 220, or forwards signals from serving link 220 to feeder link 230. That is, satellite 210 does not have the function of a base station; communication between terminal device 240 and the base station in network 260 needs to be relayed through satellite 210.

[0048] For example, Figure 3 This is a schematic diagram of another architecture for the NTN system. (Example:) Figure 3 As shown, the satellite radio access network 300 includes a satellite 310, a service link 320, a feeder link 330, terminal equipment 340, a gateway 350, and a network 360. Figure 2 The difference is that satellite 310 has base station 312, while the network 360 behind gateway 350 only includes the core network.

[0049] Figure 3 The NTN architecture shown is a regenerative transponder architecture. In this architecture, satellite 310 carries base station 312, which can be directly connected to the earth-based core network via a link. Satellite 310 functions as a base station, and terminal device 340 can communicate directly with satellite 310. Therefore, satellite 310 can be referred to as a network device.

[0050] exist Figure 2 and Figure 3 The communication system with the architecture shown may include multiple network devices, and each network device may include other terminal devices within its coverage area. This application does not limit this aspect.

[0051] In the embodiments of this application, Figures 1 to 3 The communication system shown may also include other network entities such as a mobility management entity (MME) and an access and mobility management function (AMF), but this application does not limit this.

[0052] It should be understood that devices with communication functions in the network / system of this application embodiment can be referred to as communication devices. Figure 1 Taking the communication system 100 shown as an example, the communication equipment may include a network device 110 and a terminal device 120 with communication functions. The network device 110 and the terminal device 120 may be the specific devices described above, which will not be repeated here. The communication equipment may also include other devices in the communication system 100, such as network controllers, mobility management entities and other network entities. This application embodiment does not limit this.

[0053] To facilitate understanding, some related technical knowledge involved in the embodiments of this application is first introduced. The following related technologies are optional solutions and can be arbitrarily combined with the technical solutions of the embodiments of this application, all of which fall within the protection scope of the embodiments of this application. The embodiments of this application include at least some of the following contents.

[0054] With the development of communication technologies, communication systems (such as 5G) will integrate the market potential of satellite and terrestrial network infrastructure. For example, the 5G standard makes NTN, including satellite segments, part of the recognized 3rd Generation Partnership Project (3GPP) 5G connectivity infrastructure.

[0055] NTN refers to a network or network segment that uses radio frequency (RF) resources on satellite or unmanned aerial system (UAS) platforms. Taking satellites as an example, communication satellites are classified according to their orbital altitude into low Earth orbit (LEO) satellites, medium Earth orbit (MEO) satellites, geostationary Earth orbit (GEO) satellites, and highly elliptical orbit (HEO) satellites. LEO is a geocentric orbit with an altitude of 2000 kilometers or less, or at least 11.25 cycles per day, with an eccentricity of less than 0.25. Most man-made objects in outer space are located in LEO. LEO satellites orbit the Earth at high speeds (mobility), but in predictable or deterministic orbits.

[0056] Satellites at different orbital altitudes have different orbital periods. For example, typical LEO altitudes range from 250 to 1500 kilometers with orbital periods of 90 to 120 minutes. Typical MEO altitudes range from 5000 to 25000 kilometers with orbital periods of 3 to 15 hours. GEO altitudes are approximately 35786 kilometers with an orbital period of 24 hours.

[0057] From the example of satellites mentioned earlier Figure 2 and Figure 3 It is known that typical scenarios for terminal devices accessing the NTN system involve NTN transparent payloads or NTN regenerated payloads. Among these, Figure 2 The bent-tube transponder architecture shown corresponds to the NTN transparent payload. Figure 3 The regenerative transponder architecture shown corresponds to the NTN regenerative payload.

[0058] In an NTN system, communication devices can infer the trajectory of a serving cell that a satellite can provide service based on the satellite's ephemeris and epoch time. For example, a terminal device can estimate the trajectory of a serving cell on Earth by predicting the satellite's position.

[0059] In some embodiments, a serving cell in an NTN is typically an area served by one or more satellites. For example, multiple satellites may form a satellite constellation to provide services to terminal devices within an NTN cell.

[0060] However, in NTN, especially for Earth mobile cells, satellite coverage time is limited. Even during satellite constellation operation, ground-based terminal devices may be in scenarios without network coverage. That is, under NTN coverage, terminal devices may experience discontinuous coverage. For example, when the current satellite or the next satellite covers the area where the terminal device is located, the terminal device is in a communication state with network coverage. Conversely, when the current satellite leaves the area where the terminal device is located and the next satellite has not yet covered that area, the terminal device is in a coverage gap with no network coverage.

[0061] In some embodiments, due to the limited number of satellites in orbit, network service may be discontinuous for a given terminal device on the ground. For example, in an IoT-based mobile network cell, a terminal device may not have any satellites available to provide service at any given time. That is, when IoT is under NTN coverage, IoT devices may experience discontinuous coverage in the time domain rather than the spatial domain.

[0062] In some embodiments, even if the terminal device is located within the geographical coverage area of ​​a satellite, the satellite's beam coverage may not include the terminal device. In this scenario, the terminal device may also be located in an area of ​​discontinuous coverage. For ease of understanding, the following uses a mobile cell as an example, combined with... Figure 4 The following example illustrates a scenario of discontinuous coverage.

[0063] exist Figure 4In the NTN system shown, both terminal device 410 and terminal device 420 are located within the geographical coverage area of ​​satellite 430. Specifically, terminal device 410 is located near position 401 (vertically perpendicular to the ground) of satellite 430, while terminal device 420 is located near position 402. Figure 4 It can be seen that the beam center of satellite 430 at epoch time t corresponds to ground position 402, and satellite 430 can provide services to terminal device 420. However, since the beam center is not perpendicular to the ground projection position 401 of satellite 430, satellite 430 cannot provide services to terminal device 410, so terminal device 410 is in a scenario of discontinuous coverage.

[0064] Depend on Figure 4 It is known that scenarios with discontinuous network coverage may occur under NTN coverage. However, TN systems, such as LTE, NB-IoT, eMTC, NR, or other communication systems, may exist in areas with NTN coverage or areas without NTN coverage.

[0065] In some embodiments, the coverage area of ​​an NTN cell providing satellite service is typically quite large. For example, an NTN cell may cover both marine and terrestrial areas. Furthermore, an NTN cell may include many available terrestrial cells. These terrestrial cells can also be referred to as terrestrial network (TN) cells or TN areas.

[0066] As an example, for NB-IoT or MTC systems, TN areas can have dedicated NB-IoT base stations.

[0067] As an example, enhanced mobile broadband (eMBB), ultra-reliable low-latency communications (uRLLC), massive machine-type communications (mMTC), and LTE or NR networks can be implemented on a single platform based on network slicing. For instance, these different applications or networks can be implemented on a single platform through software.

[0068] When a terminal device is in a scenario with discontinuous coverage, its communication needs to take into account the situation where there is no network coverage. For example, during the time when satellite coverage is available, if the terminal device attempts to initiate a connection establishment, the remaining coverage time may be too short to complete the connection establishment.

[0069] Optionally, the terminal device can predict the time of network coverage loss to check whether the remaining time of current cell coverage is sufficient to meet the needs of connection establishment, thereby ensuring that the terminal device can successfully establish communication with the satellite. In addition, for terminal devices that are about to lose network coverage, preparations can also be made (e.g., entering RRC idle state (RRC_idle) or sleep state) to further save power consumption.

[0070] As an example, a terminal device can obtain satellite ephemeris information and then determine the critical time at the edge of satellite signal coverage based on its own location and ephemeris information. This critical time can be used to determine recommended information for the terminal device to perform state transitions. For example, the critical time can be used to determine the departure time when the terminal device leaves the satellite signal coverage area. This departure time can be used to determine the duration the terminal device remains within the satellite signal coverage area. This duration can be used to determine the wake-up duration of the terminal device in the recommended information.

[0071] As an example, for ground-based fixed cells served by non-geostationary orbit (NGSO) satellites, the network can provide cell dwell times, such as service times (T-service). Terminal devices can estimate their arrival time at the cell edge based on the service's service time.

[0072] As an example, terminal devices can also estimate satellite parameters based on Global Navigation Satellite System (GNSS) positioning information and estimate their own arrival time at the cell edge.

[0073] As an example, based on predicted timing information, both the terminal device and the network can determine when discontinuous coverage begins or when to release the terminal device to RRC_idle, thus achieving synchronization. For mobile cell scenarios, the stop time of fixed cells cannot be used. When the terminal device predicts discontinuous coverage solely based on location information, the prediction results may also be inaccurate, such as... Figure 4 As shown.

[0074] Optionally, the NTN can provide auxiliary information to terminal devices to predict discontinuous coverage. In other words, the terminal device knows the NTN coverage information based on the auxiliary information. When the terminal device is outside the NTN coverage area, it can skip idle mode tasks and directly enter a sleep state. This is because the terminal device still needs to receive paging messages in the idle state. On the other hand, the terminal device can deactivate the terrestrial network access stratum (AS) function, so it does not need to perform cell search on the TN even in the idle state.

[0075] As an example, when a terminal device is in NTN (Network Network Neighborhood), auxiliary information may include information related to satellite network coverage, such as satellite ephemeris information. Based on this auxiliary information, the terminal device can predict whether it will lose satellite network coverage and whether it is currently within satellite network coverage. For example, the terminal device can determine the relevant time information regarding the loss of satellite network coverage. This relevant time information may include at least one of the following: the duration of no network coverage, the time of entering no network coverage, and the time of returning to network coverage.

[0076] Optionally, the terminal device can predict and calculate the boundaries of TN serving cells. When satellites cannot cover the terminal device, the terminal device can select a TN cell and enter the coverage area of ​​the TN region to fulfill the terminal device's communication needs. As a possible implementation, considering the characteristics of NTN, the network can configure measurements in TN frequencies with higher priority than those in NTN.

[0077] As an example, the system can notify the terminal device of specific TN area frequency points, locations, and other information within the NTN area via broadcast / system messages (e.g., system information blocks (SIBs)). For instance, the method of NR NTN providing TN area information to the terminal device for performing TN measurements can also be used for discontinuous IoT NTN coverage. In other words, the IoT NTN provides TN area information. When the terminal device is in a discontinuous coverage area, it activates the AS function based on the TN area information.

[0078] As an example, the priorities of different frequency points in a TN system or frequency points in different systems can come from the SIB or dedicated signaling such as Radio Resource Control (RRC) release (RRCRelease). For instance, if the SIB does not configure reselection priorities for different frequencies, the terminal device can skip cell reselection measurements. Similarly, dedicated signaling can set frequency priorities within the NTN area. If dedicated signaling configures frequency priorities, the terminal device can ignore all priorities from the SIB.

[0079] As an example, for a quasi-Earth mobile cell, the broadcast coverage cell can provide a list of TN frequencies within its coverage area at different times, and this list can be updated periodically.

[0080] The previous section used the Internet of Things (IoT) as an example to introduce the discontinuous coverage scenario under NTN. Applications such as IoT and MTC are experiencing exponential growth and are expected to play a crucial role in future networks and systems. In these systems, terminal devices transmit data infrequently and do not need to maintain constant communication with network devices. To save energy, the network side can configure various energy-saving modes for terminal devices.

[0081] For example, NB-IoT is primarily designed for infrequent, small-data-packet traffic and does not require a handover process in the RRC connected state. When an NB-IoT terminal device needs to change its serving cell, it can release the RRC, thus entering an idle state, and then reselect to another cell. After the terminal device completes cell selection and camps on the new serving cell, it can initiate measurements of neighboring cells based on the frequency points of neighboring cells and the measurement values ​​of the serving cell in the system messages broadcast by the serving cell.

[0082] For example, NB-IoT terminal devices do not support emergency dialing. If the terminal device cannot find a suitable cell through reselection, it will not temporarily camp on an acceptable cell, but will continue searching until a suitable cell is found.

[0083] For example, NB-IoT can support three power-saving modes: Power Saving Mode (PSM), Discontinuous Reception (DRX) mode, and Extended Discontinuous Reception (eDRX) mode. In PSM mode, the terminal device does not need to receive paging to detect the presence of downlink service. Compared to DRX mode, terminal devices in eDRX mode have a longer paging detection cycle. For ease of understanding, the following will combine... Figure 5 and Figure 6 Different energy-saving modes are illustrated with examples. Figure 5 and Figure 6 In the figure, the horizontal axis represents time, and the vertical axis represents energy consumption.

[0084] Depend on Figure 5 It can be seen that the terminal device can transmit data with higher energy consumption in the active state, and mainly receive data with relatively lower energy consumption in the idle state. After the idle state lasts for a period of time, if it does not re-enter the active state, the terminal device will directly enter the even lower energy consumption PSM state. The period of time the terminal device is in the idle state is the duration of the T3324 timer.

[0085] See also Figure 5A complete Tracking Area Update (TAU) cycle is the sum of the durations of the idle state and the PSM state. The duration of a TAU cycle is defined as the duration of timer T3412. Therefore, T3412 is the TAU duration, while T3324 is the timer for entering the PSM state from the idle state.

[0086] Figure 6 The relevant parameters in eDRX mode are illustrated. In traditional DRX mode, the minimum interval is 2.56 seconds (DRX cycle), which is too frequent for IoT devices where data transmission is infrequent. To further reduce power consumption caused by paging, NB-IoT introduces enhanced discontinuous reception (eDRX) technology. Within each eDRX cycle, there is a paging time window (PTW). Within the PTW, the terminal device listens for paging messages from the network and responds.

[0087] The above text combined Figure 5 and Figure 6 This section introduces various energy-saving modes and related parameters for eDRX mode. Figure 5 and Figure 6 It can be seen that the terminal device consumes less energy in the idle state and PSM state, thus achieving energy saving.

[0088] As mentioned earlier, during periods of discontinuous coverage, especially when there is no network coverage, terminal devices may not receive paging messages. In such cases, the terminal device, acting as the paging receiving node, may miss some important messages. For these important paging messages, the terminal device may need to know or wish to know, to help the user confirm the paging message or contact the node that initiated the important paging.

[0089] Optionally, IoT terminal devices may not need to respond to network paging in a timely manner, but they do need to know which paging messages may have been lost. This is especially true in cases of discontinuous coverage, where terminal devices may be unable to receive paging messages when network coverage is unavailable. How IoT terminal devices should operate in this scenario is a question worthy of further investigation.

[0090] On the other hand, important paging messages also include security-related paging and emergency paging. If a terminal device misses these paging messages, it could lead to significant problems. Therefore, a new mechanism needs to be designed to maximize the reachability of terminal devices.

[0091] Optionally, when receiving a call on a mobile device, the terminal device may be in a scenario with poor reception. For example, the terminal device may be placed in a pocket, backpack, vehicle, boat, or building. Alternatively, the terminal device may be in a scenario with congested wireless paths or degraded wireless link quality. In these scenarios, users may experience poor reception and miss calls and messages, which can be particularly detrimental to security-related or urgent paging messages.

[0092] It should be noted that the problem mentioned above, where the terminal device cannot receive the paging due to the discontinuous coverage of the IoT NTN system, is only an example. The embodiments of this application can be applied to any type of scenario where the terminal device may not receive the paging.

[0093] Based on this, embodiments of this application propose a method for wireless communication. Through this method, a first notification received by a first communication device (e.g., a terminal device) can indicate a page that has been lost or may be lost. The first communication device can issue an alarm to the user based on the first notification. Therefore, the user can quickly move to a location where they can receive pagers, or contact the node that initiated the lost page, based on the alarm notification, to avoid missing important information.

[0094] To facilitate understanding, the following will be combined with... Figure 7 The methods proposed in the embodiments of this application will be described in detail. Figure 7 It is presented from the perspective of the interaction between the first and second communication devices.

[0095] See Figure 7 In step S710, the first communication device receives a first notification (alert) sent by the second communication device.

[0096] The first communication device can be any type of terminal device or repeater that receives paging messages, and is not limited thereto. In some embodiments, the first communication device is a terminal device with a low service transmission rate or low data transmission, such as an NB-IoT terminal or an MTC terminal. In some embodiments, the first communication device is a device that supports energy-saving or low-power configurations, such as supporting DRX configuration or eDRX configuration.

[0097] As an example, the first communication device can be any type of terminal device described above, such as a UE.

[0098] As one embodiment, the first communication device is a terminal device of the NTN system. This terminal device can be located within the satellite's coverage area. For example, the first communication device is a terminal device in an NTN Internet of Things (IoT) system.

[0099] As an example, the first communication device is a communication device in any communication system that can receive paging.

[0100] As one embodiment, the first communication device is a device that is broadcast or configured to perform an action using the first notification.

[0101] The first communication device can be a fixed-location terminal device or a mobile terminal device; there is no limitation on this. For example, the first communication device can be a terminal device on a high-speed train in operation.

[0102] In some embodiments, the second communication device sends a first notification to the first communication device, and the first communication device is in any state where it can receive the notification. For example, the first communication device may be in an RRC active state. Alternatively, the first communication device may be in an RRC idle state.

[0103] The second communication device can be any network device that sends a first notification to the first communication device. In some embodiments, the second communication device includes a satellite in an NTN system, and the first communication device is a terminal device that communicates via satellite. For example, when a base station is deployed on a satellite, the first communication device communicates directly with the base station on the satellite. For example, when the satellite acts as a relay, the first communication device communicates with a ground-based network device via the satellite.

[0104] As one embodiment, when the second communication device includes a satellite, the first communication device is located within the service area of ​​the satellite at the current moment to receive the first notification via the satellite.

[0105] In some embodiments, the second communication device can also be any network-side device that sends a paging request. Network-side devices can include the network devices described above, as well as communication devices on the core network (CN) side. As an example, the second communication device can be a RAN node, such as a base station. As an example, the second communication device can be a network element in the core network that sends a paging request.

[0106] In some embodiments, the communication device sending the paging is related to the state of the first communication device. Regarding the state of the terminal device, except in the RRC active state, the RAN typically does not detect paging faults; these are detected by the core network. That is, when the first communication device is in the RRC idle state or the RRC inactive state, the RAN may not know the true reason for paging the first communication device. For example, in an emergency, the core network will directly initiate paging.

[0107] As an example, when a radio link failure occurs, the network-side device may send many downlink Internet Protocol (IP) packets to the first communication device.

[0108] As one embodiment, when the second communication device is a network element of the core network, it can send a first notification to the first communication device through a base station. In this case, the second communication device may include the base station and related devices in the core network.

[0109] As an example, when the second communication device is a network element of the core network, it can directly send a first notification to the first communication device.

[0110] In some embodiments, the paging and the first notification received by the first communication device may originate from different network-side devices. That is, the second communication device may not include the network device that sent the paging to the first communication device. As one embodiment, the second communication device is the base station sending the first notification, and the paging received by the first communication device originates from a network-side device other than the second communication device. The network device sending the paging can send the first notification to the first communication device through the second communication device after determining the content of the first notification.

[0111] As one example, the satellite sending the first notification can be either the first satellite sending the paging message or a second satellite that provides subsequent coverage.

[0112] The first notification is used to indicate one or more paging requests within a first time period. In some embodiments, the start and end times or duration of the first time period can be determined based on the status of the first communication device, the paging transmission cycle, or the cycle in which the first communication device detects paging requests or the second communication device receives paging responses.

[0113] In some embodiments, the first time period can be any time period during which the first communication device fails to successfully receive a paging message.

[0114] As an example, the first time period could be a period of time during which paging was lost before the first notification was sent. For instance, when the first communication device is in an idle state with poor link quality, the first time period could be the period during which the first communication device is in an idle state.

[0115] As an example, the first time period could be a period of time during which paging might not be received after the first notification is sent. For instance, when the first communication device is in a scenario with discontinuous coverage, the first time period could be a period of time during which the first communication device is without network coverage.

[0116] In some embodiments, for terminal devices in the Internet of Things, the first time period may be related to the period during which the terminal device detects paging.

[0117] As one embodiment, the first time period may include one or more DRX cycles during which the first communication device is in an idle state. For example, the first time period may be one or more DRX cycles before the first notification is sent within the idle state time period.

[0118] As one example, the first time period may include one or more eDRX cycles during which the first communication device is in an idle state.

[0119] As an example, the length of the DRX cycle or eDRX cycle is configurable. For instance, a default DRX cycle length can be provided in the system information. Alternatively, dedicated signaling can provide a specific DRX cycle length to the first communication device.

[0120] As an example, the number of paging attempts in a DRX cycle or eDRX cycle is configurable and can be provided in the system information.

[0121] The number of pages in one or more paging processes is not limited. In some embodiments, the number of pages may be related to the length of the first time period. For example, when the first time period is one DRX cycle, the first notification indicates one page within the first time period. Or, when the first time period is multiple DRX cycles, the first notification indicates multiple pagers within the first time period.

[0122] One or more paging calls include paging calls that the first communication device has not successfully received and / or paging calls that the first communication device is unable to successfully receive in the current state. That is, the one or more paging calls may include one or more paging calls that the first communication device has already lost, and / or one or more paging calls that the first communication device may lose if it does not adjust the current state.

[0123] As one embodiment, one or more paging messages may be paging messages associated with the first communication device. In other words, one or more paging messages are paging messages sent from the second communication device or other network-side devices to the first communication device.

[0124] A paging message that the first communication device failed to receive can be replaced by one of the following: a paging message that the first communication device could not receive, a paging message that the first communication device lost, or a paging message that the second communication device did not receive a paging response for.

[0125] In some embodiments, when the first communication device is in a state where it cannot receive paging, the one or more paging messages are considered unreceiveable. For example, for a first communication device in a discontinuous coverage area, if it is in a scenario without network coverage, it cannot receive paging messages. Similarly, if the first communication device is an IoT terminal in PSM (Power Segmented Mode) state, it cannot receive paging messages. Furthermore, if the first communication device fails to reselect a TN cell or cannot find a cell to camp on, it cannot detect normal paging messages from the network.

[0126] In some embodiments, the first communication device is in a state where it can receive paging messages, where one or more paging messages are unreceived. That is, although the first communication device is performing paging detection, it has lost the paging message. For example, if the first communication device is in an idle state and is in an environment with low communication quality or coverage, it may not be able to detect a normal paging message from the network.

[0127] As an example, communication quality can be represented by various parameters such as signal-to-noise ratio (SNR) and reference signal received quality (RSRQ), and no particular limitation is made here. For simplicity, SNR will be used as an example in the following explanation.

[0128] In some embodiments, the first communication device receives a paging message, but the second communication device does not receive a paging response from the first communication device. For example, due to good downlink (DL) coverage, the first communication device can detect the paging message. However, due to insufficient signal-to-noise ratio (SNR) in the uplink (UL), the first communication device may be unable to establish a paging connection via RRC resuming connection, and the network side will not receive a paging response or similar information.

[0129] The inability of the first communication device to successfully receive a paging message in its current state can refer to the situation where, if the first communication device maintains its current state, it may be unable to successfully receive a paging message sent by the second communication device or other network devices.

[0130] In some embodiments, the current state can be a communication state where the first communication device cannot receive normal paging. For example, if the first communication device is in an RRC idle state and has poor uplink coverage, it may be unable to receive paging from the network side. In this scenario, the first communication device can switch to an RRC active state with stronger uplink coverage based on a first notification.

[0131] In some embodiments, the current state can be the communication scenario in which the first communication device is currently located. For example, if the first communication device is in a discontinuous coverage scenario of an NTN (Network Network Neighborhood Network), and cannot receive paging from the network side after entering a scenario with no network coverage, the first communication device can switch from an NTN cell to a nearby TN cell to receive paging according to a first notification. This will be described later in conjunction with an NTN embodiment.

[0132] In some embodiments, the current state can be the communication environment in which the first communication device is currently located. For example, the first communication device may be in an environment with poor uplink and / or downlink coverage, and therefore may not be able to receive paging. In this scenario, the first communication device can remind the user to move to an environment with better coverage based on a first notification, i.e., adjust the current state.

[0133] The second communication device can determine one or more paging requests within the first time period in a variety of ways to generate the first notification.

[0134] In some embodiments, after sending a paging message, the second communication device or the network device that sent the paging message can determine whether the first communication device successfully received the paging message based on the received paging response. For example, if the network does not receive a paging response or similar information within one or several DRX cycles after sending a paging message to the first communication device, it can confirm that the first communication device lost the paging message.

[0135] In some embodiments, when a paging message needs to be sent to the first communication device, the second communication device can determine the first notification based on the communication status of the first communication device. This communication status could be the aforementioned state where the first communication device cannot successfully receive the paging message.

[0136] As an example, when the first communication device cannot successfully receive a paging message in its current state, the second communication device can be programmed to send a first notification to alert the first communication device that a new call has arrived. For instance, if the first communication device is in an environment with poor uplink and downlink SNR, it may be unable to receive a paging message, and the network side needs a specific program to alert and alarm the first communication device that a paging message has arrived. Alternatively, if the first communication device is in an idle state, the network side can send a dedicated notification / alarm signal (the first notification).

[0137] As one embodiment, the second communication device can predict or estimate the communication status of the first communication device within a first time period to determine whether to send a first notification. The following will provide an exemplary description of the prediction method used by the second communication device.

[0138] As an example, in certain scenarios, even if the first communication device adjusts its current state, it may still be unable to receive a paging message. The first notification can then be sent to indicate that the first communication device has lost its paging message. For instance, if the TN (Network Transmission Network) is unavailable, and the first communication device cannot switch to the TN area and can only remain in the NTN (Network Transmission Network) area, the first communication device may be in an unreachable period. In this unreachable state, the first communication device cannot receive paging messages or the first notification sent by the network. After the first communication device sends its unreachable time and duration to the network, the network will send the first notification after the unreachable period ends.

[0139] In some embodiments, the second communication device may send a first notification based on priority. For example, the first notification has a higher priority than a normal paging call, but a lower priority than an emergency call.

[0140] In some embodiments, the second communication device may send a first notification according to a paging timeout mechanism to determine that the paging message can be successfully received. The first notification is sent when one or more regular paging signals fail to reach the user.

[0141] As an example, in a scenario with discontinuous coverage, the first communication device can enter an idle state before leaving the coverage area. When the first communication device enters the idle state, it is within a low SNR coverage area, making its reachability crucial. To ensure paging message reception, the second communication device can promptly notify the first communication device via a first notification if one or more regular paging signals fail to reach the user.

[0142] The first notification may also include more information to help the first communication device and the user determine whether to contact the initiating node of the lost paging, or whether to adjust the current state to improve communication efficiency.

[0143] In some embodiments, the first notification may further include one or more of the following information: the message identifier (identity, ID) corresponding to the first notification; the number of one or more paging; the initiating node of some or all of the paging in the one or more paging; the type of the event corresponding to the one or more paging; the priority of the event corresponding to the one or more paging; and the time parameter of the event corresponding to the one or more paging.

[0144] Optionally, the first notification may include a message ID for sending the first notification. When the first notification is a sequence, the message ID may include a sequence number. For example, the second communication device may include or append a selected message ID and sequence number to the first notification.

[0145] As an example, the message ID can be customized to uniquely identify parameters and / or delivery preferences associated with the message. Delivery preferences could be priority related to first notification, wait time, expected device, etc. For example, the message ID can be used to determine the priority of transmission.

[0146] Optionally, the first notification may include one or more pagers. As an example, for some IoT devices that do not need to respond to pagers promptly, the device can determine the severity of the situation based on the number of times it has been paged.

[0147] Optionally, the first notification may include some or all of the initiating nodes in one or more paging processes. When the first communication device determines that the initiating node is a device that needs to respond, it can promptly contact the initiating node or move to a location with better SNR. When the first communication device determines that it does not need to respond to the initiating node, it can refrain from contacting or adjusting its status, which helps save power consumption.

[0148] Optionally, the first notification may include the number of one or more paging requests and the initiating node. For example, the first notification may include parameters such as how many times the terminal device was paged and from whom the pagers were located. In this scenario, the first notification helps the user better determine whether a response to the paging is necessary, and whether to switch networks or move to an area with better SNR.

[0149] Optionally, the first notification may include information related to one or more paging-related events. This event may be the time the paging was initiated or an event related to the paging. For example, the event information may include the event type, priority, and time parameters.

[0150] As an example, the first notification may include a text message describing the event, its location, etc. The first communication device may generate an appropriate alert message based on the received event information and / or determined context data.

[0151] As an example, relevant information about an event may include the event type, event severity, category of the first communication device, event priority, location and / or size of the area corresponding to the first notification, latency attributes related to the delivery of the first notification, and message ID. Furthermore, relevant information may also include, but is not limited to, historical patterns and / or trends, device behavior, user preferences, service provider preferences and / or policies, event location, current time / date, weather conditions, news, and scheduled events in the relevant area. Scheduled events include, for example, concerts, parades, political rallies, and football matches.

[0152] In some embodiments, the first notification includes a first sequence. Exemplarily, the first notification may be a first sequence. Exemplarily, the first notification may be carried in a first sequence. The first sequence may be a physical signal sequence, such as an M-sequence or a Gold sequence.

[0153] As an example, the first sequence is carried on a dedicated SIB or dedicated signal for broadcasting the first notification, in order to be transmitted.

[0154] In some embodiments, the first sequence may be generated or scrambled using parameters associated with the first communication device or the first notification. Exemplarily, the first sequence may be generated and / or scrambled based on at least one of the following parameters: physical cell ID; temporary mobile subscriber identifier (TMSI) of the first communication device; index number of the starting time-domain location of the first notification's transmission timing; index number of the synchronization signal block associated with the first notification; and index number of the time-domain location associated with the first physical downlink control channel (PDCCH) corresponding to the first paging.

[0155] As one embodiment, the first paging may be the first paging within a first time period. The first paging may be the first of one or more paging processes, or it may not be a paging process among one or more paging processes. That is, the first paging within the first time period may be a paging process that the first communication device failed to receive, or it may be a paging process that the first communication device successfully received.

[0156] In some embodiments, the second communication device may send the first notification in a variety of ways. Optionally, the first notification may be carried in one or more of the following: short message, dedicated channel, and system information block (SIB).

[0157] As an example, the second communication device can send a short messaging service (SMS) / data notification to the first communication device via an Internet Protocol Multimedia Subsystem (IMS) server through NB-IoT. In other words, the first notification can be sent via short message.

[0158] As one example, the first notification can be sent via a dedicated channel. For instance, the system can establish a dedicated paging alarm notification channel to facilitate the sending of a first notification in an emergency.

[0159] As one embodiment, the second communication device can send a first notification via an SIB, such as SIB20. The first notification can also be a message. Exemplarily, the SIB can transmit the first notification via the Uu wireless interface in the logical channel corresponding to the broadcast control channel (BCCH). Optionally, the BCCH message is carried on a downlink-shared channel (DL-SCH) and transmitted on a physical downlink-shared channel (PDSCH). Optionally, the SIB used to transmit notification data can be configured to carry broadcast data. This broadcast data targets one or more categories of IoT devices in a selected area.

[0160] As one example, the first notification may be included in the control channel, that is, the first notification is sent when the control channel is sent.

[0161] As one example, the first notification can be sent separately. For instance, the control channel can be sent after the first notification.

[0162] In some embodiments, the transmission beam of the first notification may be associated with a synchronization signal block. As one embodiment, the first notification may have a one-to-one association with a synchronization signal block. The first notification and the associated synchronization signal block use the same beam direction.

[0163] As one embodiment, the first notification has a one-to-many association with the actual synchronized signal blocks transmitted in the reference synchronized signal block set. The beam direction used by the first notification is one of the beam directions of the associated multiple synchronized signal blocks.

[0164] In some embodiments, the sending parameters of the first notification include parameters such as the number of times the first notification is sent, the sending timing, and the sending period (alert period). The sending parameters of the first notification are determined based on one or more of the following parameters: the first paging timing and the first offset within the first time period; the end time and the second offset of the first time period; the first notification level corresponding to the first notification; the number of first periods included in the first time period; and the first quality parameter of the signal transmitted by the first communication device at the first moment.

[0165] As one embodiment, the first time period includes multiple paging opportunities, and the sending opportunity of the first notification can be determined based on the start and end times of the first time period and / or the paging opportunities. This will be discussed in conjunction with... Figures 8 to 10 An example is provided.

[0166] As an example, the timing of sending the first notification can be determined based on the first paging opportunity and the first offset within the first time period. That is, the first paging opportunity and the first offset are used to determine the timing of sending the first notification.

[0167] For example, the start time of sending the first notification can be the sum of the end time of the first paging opportunity and the first offset.

[0168] For example, the start time of sending the first notification can be the sum of the start time of the first paging opportunity and the first offset.

[0169] It should be noted that if the second communication device receives a paging response within the time period corresponding to the first offset, it will not send the first notification.

[0170] As an example, the timing of sending the first notification can be based on the end time of the first time period and a second offset. In some scenarios, the second offset allows the first communication device a buffer and decision period before entering the PSM state. Based on this period, the first communication device can determine whether to directly enter the PSM state or establish a connection with the network to accept paging from the network buffer.

[0171] For example, the start time of sending the first notification can be the difference between the end time of the first time period and the second offset.

[0172] For example, the first offset or the second offset is determined by the service type and / or the first notification level of the first communication device. For instance, the second communication device may select a first offset or the second offset of a corresponding size for the service type of the first communication device. Similarly, the second communication device may select a first offset or the second offset for the first notification level.

[0173] Optionally, the number of times the first notification is sent can also be referred to as the number of times the first notification is repeated. Optionally, if the first notification is important, the second communication device can send the first notification multiple times to better remind the user to contact the initiating node or adjust the current state. Optionally, if the quality and / or strength of the relevant signal of the terminal device is poor, the first notification can be sent multiple times to provide a reminder.

[0174] Optionally, the number of times the first notification is sent can be the number of times within a DRX cycle or an eDRX cycle, or the total number of times it is sent throughout the entire first time period; there is no limitation here. As an example, the second communication device can select the number of repetitions of the first notification from a list. This list can be mapped to the cycle length of the DRX or eDRX.

[0175] Optionally, the frequency of sending the first notification can be determined based on the number of times it is sent and the first time period. For example, the first notification can be sent after each paging opportunity of a DRX in the PTW or after several DRXs. The PTW can determine or directly use this as the frequency of sending the first notification.

[0176] As an example, by designing different levels of first notifications, different levels of terminal signal quality and / or strength can be reflected. For instance, there could be three levels (low, medium, and high) of notifications for received signal quality and / or received signal strength. Each level corresponds to a different threshold value (e.g., SNR threshold). The frequency and number of first notifications sent also differ for different levels of notifications.

[0177] As an example, signal quality can be indicated by parameters such as SNR, signal-to-interference plus noise ratio (SINR), channel quality indicator (CQI), narrowband reference signal received quality (NRSRQ), reference signal received quality (RSRQ), energy of cell-specific reference signal (CRS) (Es / Iot), and energy of shared channel (SCH) (Es / Iot) for IoT, without limitation here.

[0178] As an example, signal strength can be indicated by parameters such as path loss, coupling loss, RSRP, narrowband reference signal received power (NRSRP), and shared channel received power (SCHRP), without limitation here.

[0179] As an example, by designing different levels of notifications, the level corresponding to the first notification can reflect the importance of the event related to the first notification.

[0180] As an example, each IP packet triggers a first notification, or a first notification is triggered after several packets, to provide a notification.

[0181] Optionally, when multiple notification levels are designed, the first notification level can be any of the multiple notification levels. The relevant sending parameters for the first notification can be determined based on the first notification level.

[0182] Optionally, the sending parameters of the first notification can also be determined based on the number of first cycles included in the first time period. The first cycle can be the DRX cycle or eDRX cycle described above. Terminal devices in RRC idle state and RRC inactive state can monitor paging / first notification within each DRX cycle. That is, the terminal device monitors a paging opportunity in each DRX cycle.

[0183] Optionally, the transmission parameters of the first notification can also be determined based on the first quality parameter of the signal transmitted by the first communication device at the first moment. That is, the quality or strength of the signal received by the second communication device at the first moment can be referred to as the first quality parameter. The second communication device can predict or estimate the quality parameter of the signal at any moment after the first moment based on the first quality parameter.

[0184] As an example, the first moment can be the current moment or any moment before the current moment.

[0185] In step S720, the first communication device sends an alarm notification based on the first notification. Therefore, the first notification is used to send an alarm notification to the first communication device. Thus, the first notification can also be referred to as an alarm signal, a dedicated notification, an alarm signal, or a paging warning notification.

[0186] In some embodiments, the first notification may be warning-oriented for the purpose of prompting, or the first communication device may issue a warning to the user based on the first notification. For example, when a mobile terminal device receives the first notification, it may prompt the user or autonomously move to a better SNR area to ensure service continuity.

[0187] The first communication device can provide alarm notifications in various ways. For example, the first communication device can provide alarm notifications via sound. For example, the first communication device can provide alarm notifications via vibration. For example, the first communication device can provide alarm notifications via a pop-up window on a graphical interface.

[0188] As an example, alarm notifications can utilize most media / multimedia messages, or other types of methods.

[0189] In some embodiments, the first communication device may select an appropriate alarm method to provide an alarm notification, so as to better remind the user of lost paging or paging that needs to be received. For example, the alarm notification method may be determined based on at least one of the communication scenario of the first communication device, user settings, and the first notification level corresponding to the first notification.

[0190] In some embodiments, the first communication device provides an alarm notification via a first method. As an example, the first method is determined based on the communication scenario of the first communication device. This communication scenario could be a situation where paging may not be successfully received, such as communication on a high-speed train.

[0191] As one embodiment, the first method can be selected according to specific scenarios and user needs. For example, the first communication device can configure a user settings window. Users can set corresponding alarm notification methods for different scenarios. For example, the first communication device can determine the first method based on the message notification method set by the user.

[0192] In some embodiments, the first communication device may employ an artificial intelligence (AI) component to perform alarm notifications. Exemplarily, the first communication device may provide alarm notifications through intelligent processing / analysis, machine learning, or other methods. Exemplarily, the first communication device may combine automatically determined attributes related to IoT service delivery to determine, based on AI, when and / or where to provide alarm notifications, and the specific manner of the notification. Exemplarily, AI may also be used to determine whether the first manner is sound, vibration, or a pop-up window.

[0193] It should be noted that the communication devices in the embodiments of this application can all employ various AI-based solutions to execute the various aspects of the method embodiments. For example, AI can be used by the communication device to determine where and / or when to broadcast the first notification / alarm. As another example, an automatic classifier system implemented through artificial intelligence components can be used by the communication device to determine at least one of the following: the target device to which the first notification / alarm is addressed, the device category, the priority for transmitting the first notification / alarm, and the waiting time attribute. The application of AI in the embodiments of this application will be specifically described later in conjunction with an embodiment of a second communication device determining a second quality parameter.

[0194] The above text combined Figure 7 This document describes an embodiment of a method for a first communication device to issue an alarm notification to a user based on a first notification. For a first communication device that has lost its paging, the alarm notification can prevent the user from missing important information. For a first communication device that may fail to receive a paging, the alarm notification can improve its reachability, thereby improving communication efficiency.

[0195] In order to anticipate potential paging failures for the first communication device, the second communication device can predict future states based on the current state of the first communication device. In other words, if the first communication device does not adjust its current state, the second communication device can estimate or predict whether the first communication device may lose paging access in the subsequent time period.

[0196] In some embodiments, the first quality parameter is used by the second communication device to predict the second quality parameter based on artificial intelligence. The second quality parameter is the quality parameter of the signal transmitted by the first communication device at any time after the first time.

[0197] Alternatively, AI-based prediction can refer to prediction made through AI components. These AI components can utilize various AI or machine learning methods. For example, AI technologies typically apply advanced mathematical algorithms to datasets. Examples of advanced mathematical algorithms include decision trees, neural networks, regression analysis, principal component analysis (PCA) for feature and pattern extraction, cluster analysis, genetic algorithms, or reinforcement learning. Communication devices can automatically learn and perform multiple functions.

[0198] As an example, AI components can learn from data using one or more of the methods described above, and then derive inferences from the constructed model. For instance, a hidden Markov model (HMM) and related prototype-dependent models can be used to determine the second quality parameter. Alternatively, general probabilistic graphical models can be used for prediction. Probabilistic graphical models, such as Dempster-Shafer networks and Bayesian networks, are networks created through structure search.

[0199] As an example, the second communication device can continue to predict the second quality parameter using Bayesian model scores or approximations.

[0200] Alternatively, the AI ​​component in this application embodiment may also employ a linear classifier, a nonlinear classifier, or a fuzzy logic method. A linear classifier is, for example, a support vector machine (SVM). A nonlinear classifier is, for example, a method called a "neural network".

[0201] In some embodiments, the second communication device may also employ advanced AI and mathematical techniques to analyze the efficiency of each data link (physical and virtual) to determine the proportion of data to be sent through each link, thereby maximizing (or improving) data transmission efficiency.

[0202] In some embodiments, the second communication device may also directly determine the second quality parameter based on the first quality parameter. For example, assuming the first time point is time k, the first communication device will enter the RRC idle state at time k+n (n>0). The second communication device can predict the SNR of the first communication device during the DRX period in the RRC idle state based on network coverage, different service types, and / or the SNR of the first communication device's signal at time k-1 and time k.

[0203] For example, at time k, the base station can store the SNR of the terminal signal received at time k-1 in a register. Then, the base station can estimate or predict or determine the SNR of the terminal signal received at time k+n based on artificial intelligence.

[0204] For example, the first communication device can be terminal device i among M terminal devices, where M is a positive integer and i is a natural number from 0 to M-1. The first quality parameter at time k is SNR. i (k) indicates the quality parameter SNR of the signal transmitted by terminal device i at time k+n. i (k+n) is:

[0205] SNR i (k+n)=SNR i (k)+n*[SNR i (k)-SNR i (k-1)];

[0206] Among them, SNR i (k-1) represents the quality parameter of the signal sent by terminal device i at time k-1, where k > 1.

[0207] As mentioned earlier, the first notification level can be determined based on signal quality. Therefore, the second quality parameter can be used to determine the notification level corresponding to the first notification. The first notification level is simply the notification level corresponding to the first notification.

[0208] In some embodiments, the first notification level is one of a plurality of notification levels. The plurality of notification levels can be determined based on a plurality of thresholds of varying sizes. When one threshold is set, there can be two notification levels. When S thresholds are set, there can be S+1 notification levels.

[0209] As an example, the first notification level can be determined based on a second quality parameter and multiple thresholds. The second quality parameter can be used to select the first notification level from multiple notification levels.

[0210] As an example, multiple thresholds include a first threshold and a second threshold related to a second quality parameter, wherein the first threshold is less than the second threshold. It should be understood that the threshold being related to the second quality parameter may include the threshold having the same parameter type as the quality parameter, and / or the threshold size being determined based on the second quality parameter.

[0211] When the first notification is sent repeatedly, a second quality parameter and multiple thresholds are used to determine the number of times the first notification is repeated. For example, the second quality parameter, the first threshold, and the second threshold are used to determine the number of times the first notification is repeated.

[0212] Optionally, the first notification may be sent within each DRX cycle. For example, the first notification may be sent within X time slots after a paging opportunity within each DRX cycle, or after X time slots. If the first communication device still cannot connect to the network after sending one or more first notifications, the network may consider the first communication device to be in an unreachable state, even if the estimated unreachable time has not yet been reached.

[0213] Optionally, the first notification may be sent every two DRX cycles or every multiple DRX cycles. For example, the first notification may be sent X time slots after the last paging opportunity in every two DRX cycles. If the first communication device still cannot connect to the network after sending the first notification, the network may consider the first communication device to be in an unreachable state, even if the estimated unreachable time has not yet been reached.

[0214] Optionally, the first notification may be sent only once within the first time period. For example, the second communication device may initiate the first notification only within the first DRX cycle. Alternatively, the second communication device may send the first notification only after the last paging in the first time period. In other words, a single warning is sent to remind the first communication device that there is a paging request and that a connection to the network needs to be established as soon as possible.

[0215] As an example, the first time period includes Q first cycles, where Q is a positive integer greater than 1. The number of repetitions N of the first notification is: when the second quality parameter is less than or equal to the first threshold, N equals Q or Q-1; when the second quality parameter is greater than the first threshold and less than or equal to the second threshold, N is greater than 1 and less than Q; when the first quality parameter is greater than the second threshold, N equals 1.

[0216] For example, SNR target1 For the first threshold, SNR target2 When the threshold is the second threshold, N is as follows:

[0217] SNR i (k+n)≤SNR target1The second communication device initiates the first notification in each DRX cycle. The sending period of the first notification is close to the DRX cycle. When there is still time to send the first notification after the last DRX cycle, N = Q; if there is no time, N = Q - 1.

[0218] SNR target1 <SNR i (k+n)≤SNR target2 The second communication device initiates the first notification every two or more DRX cycles. The sending cycle of the first notification is approximately twice or more than the DRX cycle.

[0219] SNR i (k+n)>SNR target2 The second communication device sends the first notification only once within the first time period.

[0220] To facilitate understanding, the following will be combined with... Figures 8 to 10 An example is provided. Figure 8 The second quality parameter is less than the first threshold. Figure 9 The second quality parameter is greater than the first threshold and less than the second threshold. Figure 10 The second quality parameter is greater than the second threshold.

[0221] See Figure 8 The first time period is the idle period. The duration of the first time period is the same as that of timer T3324. The first time period includes 5 paging opportunities 801 (Q=5) and 4 alarm opportunities 802 (N=4). The alarm opportunity is the time when the first notification is sent. The first offset 810 is between the first alarm opportunity 802 and the first paging opportunity 801. The interval 820 of the alarm opportunities 802 is the transmission cycle.

[0222] Depend on Figure 8 It can be seen that the second communication device sends the first notification after adding the first offset (offset1) 810 at the first paging time.

[0223] Figure 9 The first time period includes 5 paging opportunities 901 (Q=5) and 2 alarm opportunities 902 (N=2). The first offset 910 is greater than the first offset 810. The interval 920 of the alarm opportunities 902 is the transmission period, which is close to twice the DRX period.

[0224] Figure 10 The first time period includes five paging opportunities 1001 (Q=5) and one alarm opportunity 1002 (N=1). The alarm opportunity 1002 is located after the last paging opportunity 1001. The second offset 1020 is determined based on the end time of the first time period.

[0225] Optionally, the multiple thresholds used to determine multiple notification levels can be dynamically adjusted, allowing for more flexible delivery of the first notification. That is, any one of the multiple thresholds can be dynamically adjusted. For example, the SNR threshold within different DRX periods can be dynamically adjusted.

[0226] As an example, if the system sends the first notification in a DRX cycle and the first communication device does not establish a connection with the network, the SNR threshold for the system to send the first notification can be changed in the next DRX cycle.

[0227] As an example, the system can predict the SNR threshold for the next DRX cycle based on the measured value from the previous moment.

[0228] As an example, the measured value at the previous moment can be the average of measured values ​​over a period of time. This period of time can be a time slot, several time slots, a frame, or several frames.

[0229] As an example, the first time period includes at least two first cycles. These at least two first cycles include an adjacent first cycle and a second cycle. Multiple thresholds corresponding to the second cycle can be determined based on multiple thresholds corresponding to the first cycle and a first mass parameter. The first mass parameter can be the mass parameter actually measured at the first time point (time k).

[0230] As an example, the first time period includes the Pth period and the (P+1)th period, where P is a positive integer. Any one of the multiple thresholds in the (P+1)th period can be determined based on the corresponding threshold in the Pth period. Assume that the multiple thresholds include any one of the thresholds, SNR. v The threshold SNR corresponding to the (P+1)th period v (P+1) is:

[0231] SNR v (P+1)=β*SNR(k)+(1-β)*SNR v (P);

[0232] Among them, SNR v (P) represents any threshold corresponding to the Pth period, SNR(k) represents the first quality parameter of the signal transmitted by the first communication device at time k, β represents the weighting coefficient, 0 < β < 1.

[0233] Therefore, the new threshold is a weighted average of the real-time SNR and the threshold of the previous period. Based on this automatic adjustment mechanism, the system can automatically adjust the sensitivity and level of alarms according to the current network conditions, which helps to provide a better user experience under different network conditions.

[0234] The preceding text described a method embodiment for a first communication device to issue an alarm notification based on a first notification from a second communication device. For ease of understanding, the following example illustrates this method embodiment using a scenario where the first communication device is located in an NTN with discontinuous coverage. That is, the second communication device includes a satellite within the NTN, and the first communication device communicates with the base station through this satellite.

[0235] The first communication device can determine whether its cell supports discontinuous coverage by broadcasting information. For example, SIB32 in the system information block can indicate that the cell supports discontinuous coverage.

[0236] In some embodiments, the first communication device may determine first time information related to discontinuous coverage. The first time information may include the relevant time information described above.

[0237] First-time information refers to time parameters related to scenarios where the network coverage of the terminal device is discontinuous. In some embodiments, first-time information refers to time parameters related to when the terminal device moves from a scenario with network coverage to a scenario without network coverage. In some embodiments, first-time information refers to time parameters related to when the terminal device moves from a scenario without network coverage to a scenario with network coverage. First-time information may be the time t1 when the first communication device enters an unreachable state and the duration of unreachability T.

[0238] As an example, a terminal device entering a scenario with no network coverage can also mean that the terminal device is in a scenario with discontinuous network coverage. Discontinuous network coverage can also be called discontinuous cell coverage. That is to say, the terminal device may be within the coverage area of ​​one cell at some times, but may not be within the coverage area of ​​any cell at other times.

[0239] In some embodiments, SIB32 or other system information blocks may also provide necessary information for predicting discontinuous coverage, such as ephemeris and beam information. This also means that the first communication device can predict how long it will remain within the coverage area of ​​the current satellite.

[0240] As an example, in the case of discontinuous coverage in IoT NTN, the first communication device can determine that it will soon enter a discontinuous coverage area based on predictions. For instance, if the elevation angle change is less than 5 degrees, or if the first communication device can reach a reference position at the cell edge less than a certain set value, it will soon enter a discontinuous coverage area. Similarly, if the first communication device does not perform any UL / DL data transmission before the expected arrival of the coverage gap, it can also be considered that a coverage gap without network coverage is imminent.

[0241] As an example, in a mobile cell, the first communication device can predict the duration of cell service based on a broadcast reference location. The first communication device can instruct itself to leave the RRC_CONNECTED state, causing the network to also consider it time to release the first communication device. It's important to note that, if the network requires, a timer configuration can be released to prevent the first communication device from autonomously entering an idle state.

[0242] As one embodiment, since the first communication device knows its own location information and the satellite's location, it can roughly know when it will enter discontinuous coverage. That is, the first time information is determined based on a first distance between the satellite's projected position on the ground and the location of the first communication device.

[0243] The satellite's projected position on the ground can be determined by transforming its geocentric coordinates. The satellite's geocentric coordinates are typically represented by three values ​​in a Cartesian coordinate system: x′, y′, and z′. This is achieved by considering the Earth's rotational angular velocity W. earth The geocentric coordinates (x′, y′, z′) can be converted to fixed Earth coordinates (x, y, z) using the following formula:

[0244] x=x′cos(W earth (t))-y′sin(W earth (t));

[0245] y = y'sin(W) earth (t))+y′cos(W earth (t));

[0246] z = z′;

[0247] Where t is time. x′ represents the distance of the satellite relative to the Earth's center along the X-axis. y′ represents the distance of the satellite relative to the Earth's center along the Y-axis. z′ represents the distance of the satellite relative to the Earth's center along the Z-axis. The Z-axis is usually aligned with the Earth's rotation axis (the axis on which the Earth rotates) and is therefore unaffected by the Earth's rotation.

[0248] The first distance can be used to determine whether the location of the terminal device is within the satellite coverage radius R. For each location, the satellite distance (first distance d) is calculated in a fixed Earth coordinate system. If the distance d is less than R, the point is within the serving cell. For terminal device i, the first distance in the corresponding fixed Earth coordinate system can be used to confirm whether it is within the communication coverage radius. Where d is:

[0249]

[0250] Where d is the first distance from the satellite to terminal device i. (x i yi , z i Let z and z' be the position coordinates of terminal device i. In some scenarios, the influence of ground height on the z-coordinate can be ignored, then z and z' ... i All are zero.

[0251] Optionally, if d ≤ R, then terminal device i is within the serving cell. Optionally, if d is less than the third threshold, then terminal device i is within the serving cell. Here, the third threshold represents the minimum requirement for communication coverage.

[0252] In some embodiments, before entering a scenario without network coverage, the first communication device can determine whether to switch from the satellite's serving cell to a terrestrial network's serving cell based on first auxiliary information. As an example, for an NB-IoT terminal device, it needs to determine whether to enter PSM state or perform cell reselection to connect to the TN's serving cell while in RRC idle state.

[0253] As an example, cell reselection can be performed before t1 is reached, regardless of the service status of the first communication device. For instance, a timer is triggered at time t1-α, the RRC changes from the connected state to the RRC idle state, and the first communication device begins TN reselection.

[0254] The first auxiliary information includes discontinuous coverage information, the time required for the next satellite to provide coverage, and relevant information about neighboring cells or TN cells, so that the first communication device can determine whether to enter a TN area. Furthermore, the first communication device can determine whether to switch from an NTN cell to a TN cell based on the current communication status, whether continued communication is still necessary, and the first auxiliary information.

[0255] As an example, in NTN, the satellite orbit is fixed. When the first communication device is in discontinuous coverage, the current serving cell can know the target cell of the first communication device, and therefore can provide some auxiliary information about the target cell to the first communication device in advance.

[0256] First auxiliary information can be used by the first communication device to quickly locate the target cell to complete cell selection / reselection, thereby reducing power consumption. In NTN, the first communication device needs to reacquire SIB31 and perform GNSS measurements before connection establishment. This process takes anywhere from a few seconds to tens of seconds, depending on the GNSS state (cold start, warm start). Due to the long round-trip time, the connection establishment process is also prolonged.

[0257] For example, in an IoT NTN, when first auxiliary information is configured, a first communication device can perform cell reselection or cell search to access the IoT NTN when outside of discontinuous coverage. However, the first communication device may not have target cell information to help it perform cell reselection / selection because neighboring cell information acquired before the first communication device enters discontinuous coverage is unavailable when leaving discontinuous coverage. In this scenario, when the first communication device performs cell reselection / selection, it will result in increased power consumption and access latency.

[0258] In some embodiments, when the first communication device enters a network-free environment, the first time period mentioned above includes the period of network-free access. When the first communication device receives a first notification after leaving the network-free environment, one or more paging messages include paging messages cached by the second communication device that are associated with the first communication device, so that the first communication device is aware of one or more lost paging messages.

[0259] For example, if the first communication device predicts the first-time information, it reports it to the NTN network. After receiving the notification from the first communication device, the base station can cache or store information received from the core network within a time period T. The information from the core network may include paging information. Furthermore, after receiving the notification from the first communication device, the core network can also cache the paging information from the first communication device.

[0260] For example, for a terminal device with a fixed location, if the first communication device predicts the first-time information, it can report it to the base station in the NTN. After receiving the notification from the terminal device, the base station can cache information related to the terminal device from the core network, such as the paging information of the terminal device, for a duration of T.

[0261] For example, for a mobile terminal device, both the core network and the base station can cache the terminal device's lost paging information. The PLMN network that the terminal device reconnects to after time T may be different from the previous one. Therefore, when the terminal device establishes a new PLMN network, the core network can send the cached paging information to the newly connected base station, which then notifies the terminal device. Alternatively, the core network can notify the base station that previously cached the terminal device's lost paging information, and that base station will then send the cached information to the new base station.

[0262] As an example, when the location of the first communication device remains unchanged, the second communication device directly sends a cached paging message related to the first communication device to the first communication device after a first time period.

[0263] As an example, when the location of the first communication device changes, the second communication device sends a cached paging message related to the first communication device to the third communication device after a first time period, so that the third communication device can notify the first communication device. The third communication device can be a new network device, such as a new base station, that the first communication device establishes a connection with after the first time period.

[0264] The above text combined Figures 7 to 10 This paper describes a method embodiment for a first communication device to issue an alarm notification based on a first notification sent by a second communication device. To ensure the transmission of the first notification, the second communication device needs to configure the transmission parameters of the first notification.

[0265] Optionally, the second communication device can determine the configuration information of the transmitting antenna used to send the first notification and the first notification level corresponding to the first notification. Further, the second communication device can determine the number of times the first notification is repeated based on the configuration information and the first notification level.

[0266] As an example, the transmit antenna configuration selected by the second communication device includes the number of transmit antennas used to transmit the first notification. Furthermore, the second communication device can use multiple transmit antennas to send alarm signals. Exemplarily, for IoT terminal devices, considering the DRX or eDRX cycle length, the second communication device can determine the number of times the first notification is repeated based on the transmit antenna configuration and the notification level.

[0267] Optionally, after receiving the first notification, the first communication device can decode the relevant transmission parameters of the first notification through a decoding unit. For example, the decoding unit can be configured to decode information such as the configuration information of the transmitting antenna used to send the first notification, the first notification level corresponding to the first notification, and the number of repetitions of the first notification.

[0268] As an example, the decoding unit corresponding to the first notification is configured to: determine configuration information about the transmitting antenna of the second communication device; determine information about the activity level of the first communication device; and determine the number of repetitions of the first notification based on the transmitting antenna configuration and the activity level. Further, the first communication device can receive the first notification, which includes at least the determined number of repetitions.

[0269] The above text combined Figures 1 to 10 The method embodiments of this application are described in detail below. Figures 11 to 13 The present application provides a detailed description of the apparatus embodiments. It should be understood that the descriptions of the apparatus embodiments correspond to the descriptions of the method embodiments; therefore, any parts not described in detail can be found in the foregoing method embodiments.

[0270] Figure 11This is a schematic block diagram of an apparatus for wireless communication according to an embodiment of this application. The apparatus 1100 can be any of the first communication devices described above. Figure 11 The device 1100 shown includes a receiving unit 1110 and an execution unit 1120.

[0271] The receiving unit 1110 can be used to receive a first notification sent by the second communication device.

[0272] The execution unit 1120 can be used to provide an alarm notification based on a first notification; wherein the first notification is used to indicate one or more paging within a first time period, the one or more paging including paging that the first communication device has not successfully received and / or paging that the first communication device cannot successfully receive in the current state.

[0273] Optionally, the first notification may also include one or more of the following information: the message ID corresponding to the first notification; the number of one or more paging requests; the initiating node of some or all of the paging requests; and relevant information about the events corresponding to one or more paging requests.

[0274] Optionally, the first paging within the first time period is the first paging, and the first notification includes a first sequence, which is generated and / or scrambled according to at least one of the following parameters: physical cell ID; TMSI of the first communication device; index number of the starting time domain position of the first notification's transmission timing; index number of the synchronization signal block associated with the first notification; and index number of the time domain position associated with the first PDCCH corresponding to the first paging.

[0275] Optionally, the first notification may be carried in one or more of the following: short message, dedicated channel, and system information block.

[0276] Optionally, the alarm notification method is determined based on at least one of the communication scenario of the first communication device, user settings, and the first notification level corresponding to the first notification.

[0277] Optionally, the transmission parameters of the first notification are determined based on one or more of the following parameters: the first paging timing and the first offset within the first time period; the end time and the second offset of the first time period; the first notification level corresponding to the first notification; the number of first cycles included in the first time period; and the first quality parameters of the signal transmitted by the first communication device at the first moment.

[0278] Optionally, the first offset or the second offset is determined with respect to the service type and / or the first notification level of the first communication device.

[0279] Optionally, the first quality parameter is used by the second communication device to predict the second quality parameter based on artificial intelligence. The second quality parameter is the quality parameter of the signal transmitted by the first communication device at any time after the first time.

[0280] Optionally, the first communication device is terminal device i among M terminal devices, where M is a positive integer, i is a natural number from 0 to M-1, the first time point is time k, and the first quality parameter is SNR. i (k) indicates the quality parameter SNR of the signal transmitted by terminal device i at time k+n. i (k+n) is:

[0281] SNR i (k+n)=SNR i (k)+n*[SNR i (k)-SNR i (k-1)];

[0282] Among them, SNR i (k-1) represents the quality parameter of the signal sent by terminal device i at time k-1, where k>1 and n>0.

[0283] Optionally, a first quality parameter is used to determine a second quality parameter, and a first notification level is determined based on the second quality parameter and multiple thresholds, including a first threshold and a second threshold related to the second quality parameter, wherein the first threshold is less than the second threshold.

[0284] Optionally, the first notification is sent repeatedly, and a second quality parameter and multiple thresholds are used to determine the number of times the first notification is repeated.

[0285] Optionally, the first time period includes Q first cycles, where Q is a positive integer greater than 1, and the number of repetitions N of the first notification is: when the second quality parameter is less than or equal to the first threshold, N equals Q or Q-1; when the second quality parameter is greater than the first threshold and less than or equal to the second threshold, N is greater than 1 and less than Q; when the second quality parameter is greater than the second threshold, N equals 1.

[0286] Optionally, the first time period includes at least two first cycles, and the at least two first cycles include an adjacent first cycle and a second cycle. Multiple thresholds corresponding to the second cycle are determined based on multiple thresholds corresponding to the first cycle and a first quality parameter.

[0287] Optionally, the first time period includes the Pth period and the (P+1)th period, where P is a positive integer, and the multiple thresholds include any threshold SNR. v The threshold SNR corresponding to the (P+1)th period v (P+1) is:

[0288] SNRv (P+1)=β*SNR(k)+(1-β)*SNR v (P);

[0289] Among them, SNR v (P) represents any threshold corresponding to the Pth period, SNR(k) represents the first quality parameter, β represents the weighting coefficient, and 0 < β < 1.

[0290] Optionally, the second communication device includes a satellite in the NTN, and the device 1100 further includes a first determining unit, which can be used to determine first time information related to discontinuous coverage; and a second determining unit, which can be used to determine, based on the first auxiliary information, whether to switch from the serving cell corresponding to the satellite to the serving cell of the terrestrial network before entering a scenario without network coverage.

[0291] Optionally, the first time information is determined based on the first distance between the satellite's projected position on the ground and the position of the first communication device.

[0292] Optionally, when the first communication device receives the first notification after leaving a scenario without network coverage, the first time period includes the period of no network coverage, and one or more paging messages include paging messages related to the first communication device cached by the second communication device.

[0293] Optionally, the device 1100 further includes a decoding unit, which can be used to decode the configuration information of the transmitting antenna used to send the first notification; decode the first notification level corresponding to the first notification; and decode the number of repetitions of the first notification.

[0294] Figure 12 This is a schematic block diagram of another device for wireless communication according to an embodiment of this application. The device 1200 can be any of the second communication devices described above. Figure 12 The device 1200 shown includes a transmitting unit 1210.

[0295] The sending unit 1210 can be used to send a first notification to a first communication device; wherein, the first notification is used for the first communication device to provide an alarm prompt, and the first notification is also used to indicate one or more paging within a first time period, the one or more paging including paging that the first communication device has not successfully received and / or paging that the first communication device cannot successfully receive in the current state.

[0296] Optionally, the first notification may also include one or more of the following information: the message ID corresponding to the first notification; the number of one or more paging requests; the initiating node of some or all of the paging requests; and relevant information about the events corresponding to one or more paging requests.

[0297] Optionally, the first paging within the first time period is the first paging, and the first notification includes a first sequence, which is generated and / or scrambled according to at least one of the following parameters: physical cell ID; TMSI of the first communication device; index number of the starting time domain position of the first notification's transmission timing; index number of the synchronization signal block associated with the first notification; and index number of the time domain position associated with the first PDCCH corresponding to the first paging.

[0298] Optionally, the first notification may also be used to instruct the initiating node of some or all of the paging in one or more paging processes.

[0299] Optionally, the first notification may be carried in one or more of the following: short message, dedicated channel, and system information block.

[0300] Optionally, the alarm notification method is determined based on at least one of the communication scenario of the first communication device, user settings, and the first notification level corresponding to the first notification.

[0301] Optionally, the transmission parameters of the first notification are determined based on one or more of the following parameters: the first paging timing and the first offset within the first time period; the end time and the second offset of the first time period; the first notification level corresponding to the first notification; the number of first cycles included in the first time period; and the first quality parameters of the signal transmitted by the first communication device at the first moment.

[0302] Optionally, the first offset or the second offset is determined with respect to the service type and / or the first notification level of the first communication device.

[0303] Optionally, the device 1200 further includes a prediction unit, which can be used to predict a second quality parameter based on artificial intelligence according to a first quality parameter, wherein the second quality parameter is the quality parameter of the signal transmitted by the first communication device at any time after the first time.

[0304] Optionally, the first communication device is terminal device i among M terminal devices, where M is a positive integer, i is a natural number from 0 to M-1, the first time point is time k, and the first quality parameter is SNR. i (k) indicates the quality parameter SNR of the signal transmitted by terminal device i at time k+n. i (k+n) is:

[0305] SNR i (k+n)=SNR i (k)+n*[SNR i (k)-SNR i (k-1)];

[0306] Among them, SNR i(k-1) represents the quality parameter of the signal sent by terminal device i at time k-1, where k>1 and n>0.

[0307] Optionally, a first quality parameter is used to determine a second quality parameter, and a first notification level is determined based on the second quality parameter and multiple thresholds, including a first threshold and a second threshold related to the second quality parameter, wherein the first threshold is less than the second threshold.

[0308] Optionally, the first notification is sent repeatedly, and a second quality parameter and multiple thresholds are used to determine the number of times the first notification is repeated.

[0309] Optionally, the first time period includes Q first cycles, where Q is a positive integer greater than 1, and the number of repetitions N of the first notification is: when the second quality parameter is less than or equal to the first threshold, N equals Q or Q-1; when the second quality parameter is greater than the first threshold and less than or equal to the second threshold, N is greater than 1 and less than Q; when the second quality parameter is greater than the second threshold, N equals 1.

[0310] Optionally, the first time period includes at least two first cycles, and the at least two first cycles include an adjacent first cycle and a second cycle. Multiple thresholds corresponding to the second cycle are determined based on multiple thresholds corresponding to the first cycle and a first quality parameter.

[0311] Optionally, the first time period includes the Pth period and the (P+1)th period, where P is a positive integer, and the multiple thresholds include any threshold SNR. v The threshold SNR corresponding to the (P+1)th period v (P+1) is:

[0312] SNR v (P+1)=β*SNR(k)+(1-β)*SNR v (P);

[0313] Among them, SNR v (P) represents any threshold corresponding to the Pth period, SNR(k) represents the first quality parameter, β represents the weighting coefficient, and 0 < β < 1.

[0314] Optionally, the second communication device includes a satellite in the NTN, and the transmitting unit is further configured to send first auxiliary information to the first communication device; wherein, the first auxiliary information is used for the first communication device to determine whether to switch from the serving cell corresponding to the satellite to the serving cell of the terrestrial network before entering a scenario without network coverage, and whether the first communication device enters a scenario without network coverage is determined based on first time information related to discontinuous coverage.

[0315] Optionally, the first time information is determined based on the first distance between the satellite's projected position on the ground and the position of the first communication device.

[0316] Optionally, when the first communication device receives the first notification after leaving a scenario without network coverage, the first time period includes the period of no network coverage, and one or more paging messages include paging messages related to the first communication device cached by the second communication device.

[0317] Optionally, the device 1300 further includes a determining unit, which can be used to determine configuration information of the transmitting antenna used to send the first notification; determine the first notification level corresponding to the first notification; and determine the number of times the first notification is repeated based on the configuration information and the first notification level.

[0318] Figure 13 The diagram shown is a structural schematic of a communication device according to an embodiment of this application. Figure 13 The dashed lines indicate that the unit or module is optional. The device 1300 can be used to implement the methods described in the above method embodiments. The device 1300 can be a chip, a terminal device, or a network device.

[0319] Apparatus 1300 may include one or more processors 1310. The processor 1310 may support apparatus 1300 in implementing the methods described in the preceding method embodiments. The processor 1310 may be a general-purpose processor or a special-purpose processor. For example, the processor may be a central processing unit (CPU). Alternatively, the processor may be other general-purpose processors, digital signal processors (DSPs), application-specific integrated circuits (ASICs), field-programmable gate arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor may be a microprocessor or any conventional processor.

[0320] The apparatus 1300 may further include one or more memories 1320. The memories 1320 store a program that can be executed by the processor 1310, causing the processor 1310 to perform the methods described in the preceding method embodiments. The memories 1320 may be independent of the processor 1310 or integrated within the processor 1310.

[0321] The device 1300 may also include a transceiver 1330. The processor 1310 can communicate with other devices or chips via the transceiver 1330. For example, the processor 1310 can send and receive data with other devices or chips via the transceiver 1330.

[0322] This application also provides a computer-readable storage medium for storing a program. This computer-readable storage medium can be applied to a terminal device or network device provided in this application, and the program causes a computer to execute the methods performed by the first communication device or the second communication device in various embodiments of this application.

[0323] The computer-readable storage medium can be any available medium that a computer can read, or a data storage device such as a server or data center that integrates one or more available media. The available medium can be magnetic media (e.g., floppy disks, hard disks, magnetic tapes), optical media (e.g., digital video discs, DVDs), or semiconductor media (e.g., solid-state disks, SSDs), etc.

[0324] This application also provides a computer program product. The computer program product includes a program. This computer program product can be applied to a terminal device or network device provided in this application embodiment, and the program causes a computer to execute the methods performed by the first communication device or the second communication device in various embodiments of this application.

[0325] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another via wired (e.g., coaxial cable, fiber optic, digital subscriber line (DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) means.

[0326] This application also provides a computer program. This computer program can be applied to the terminal device or network device provided in this application, and the computer program causes the computer to execute the methods performed by the various communication devices in the various embodiments of this application.

[0327] In this application, the terms "system" and "network" are used interchangeably. Furthermore, the terminology used in this application is only for explaining specific embodiments of the application and is not intended to limit the application. The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. In addition, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion.

[0328] In the embodiments of this application, the term "instruction" can be a direct instruction, an indirect instruction, or an indication of a relationship. For example, A instructing B can mean that A directly instructs B, such as B being able to obtain information through A; it can also mean that A indirectly instructs B, such as A instructing C, so B can obtain information through C; or it can mean that there is a relationship between A and B.

[0329] In the embodiments of this application, the term "correspondence" may indicate a direct or indirect correspondence between two things, or an association between two things, or a relationship such as instruction and being instructed, configuration and being configured.

[0330] In the embodiments of this application, "predefined" or "preconfigured" can be implemented by pre-storing corresponding codes, tables, or other means that can be used to indicate relevant information in the device (e.g., including terminal devices and network devices). This application does not limit the specific implementation method. For example, predefined can refer to what is defined in the protocol.

[0331] In the embodiments of this application, the term "protocol" may refer to standard protocols in the field of communications, such as LTE protocols, NR protocols, and related protocols applied in future communication systems. This application does not limit the scope of these protocols.

[0332] In the embodiments of this application, determining B based on A does not mean determining B solely based on A; B can also be determined based on A and / or other information.

[0333] In the embodiments of this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, or B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0334] In the embodiments of this application, the order of the above-mentioned process numbers does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0335] In the several embodiments provided in this application, it should be understood that the disclosed systems, apparatuses, and methods can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for instance, the division of units is only a logical functional division, and in actual implementation, there may be other division methods. For example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces; the indirect coupling or communication connection between apparatuses or units may be electrical, mechanical, or other forms.

[0336] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0337] In addition, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can exist physically separately, or two or more units can be integrated into one unit.

[0338] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the scope of the technology disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A method for wireless communication, characterized in that, include: The first communication device receives a first notification sent by the second communication device; The first communication device issues an alarm notification based on the first notification; Wherein, the first notification is used to indicate one or more paging within a first time period, the one or more paging including paging that the first communication device did not successfully receive and / or paging that the first communication device cannot successfully receive in the current state, the sending parameters of the first notification are determined based on a first quality parameter of the signal sent by the first communication device at a first moment, the first quality parameter is used by the second communication device to predict a second quality parameter, the second quality parameter being the quality parameter of the signal sent by the first communication device at any moment after the first moment.

2. The method according to claim 1, characterized in that, The first notification also includes one or more of the following information: The message identifier ID corresponding to the first notification; The number of the one or more paging requests; The initiating node of some or all of the paging in one or more paging; Information related to the events corresponding to the one or more paging requests.

3. The method according to claim 1 or 2, characterized in that, The first paging within the first time period is the first paging, and the first notification includes a first sequence, which is generated and / or scrambled according to at least one of the following parameters: Physical cell ID; The Temporary Mobile Subscriber Identity (TMSI) of the first communication device; The index number of the starting time domain position of the first notification's sending timing; The index number of the synchronization signal block associated with the first notification; The index number of the time-domain location associated with the first physical downlink control channel (PDCCH) corresponding to the first paging.

4. The method according to claim 1 or 2, characterized in that, The first notification is carried in one or more of the following: short message, dedicated channel, and system information block.

5. The method according to claim 1 or 2, characterized in that, The alarm notification method is determined based on at least one of the communication scenario of the first communication device, user settings, and the first notification level corresponding to the first notification.

6. The method according to claim 1 or 2, characterized in that, The sending parameters of the first notification are also determined based on one or more of the following parameters: The first paging opportunity and the first offset within the first time period; The end time of the first time period and the second offset; The first notification level corresponding to the first notification; The number of the first period included in the first time period.

7. The method according to claim 6, characterized in that, The first offset or the second offset is determined in relation to the service type of the first communication device and / or the first notification level.

8. The method according to claim 6, characterized in that, The first communication device is terminal device i among M terminal devices, where M is a positive integer and i is a natural number from 0 to M-1. The first time is time k. When the first quality parameter is... At time k+n, the quality parameters of the signal transmitted by terminal device i for: ； in, This represents the quality parameter of the signal transmitted by the terminal device i at time k-1, where k > 1 and n > 0.

9. The method according to claim 6, characterized in that, The first quality parameter is used to determine the second quality parameter, and the first notification level is determined based on the second quality parameter and a plurality of thresholds, the plurality of thresholds including a first threshold and a second threshold related to the second quality parameter, wherein the first threshold is less than the second threshold.

10. The method according to claim 9, characterized in that, The first notification is sent repeatedly, and the second quality parameter and the plurality of thresholds are used to determine the number of times the first notification is repeated.

11. The method according to claim 10, characterized in that, The first time period includes Q first cycles, where Q is a positive integer greater than 1, and the number of repetitions N of the first notification is: When the second quality parameter is less than or equal to the first threshold, N equals Q or Q-1; When the second quality parameter is greater than the first threshold and less than or equal to the second threshold, N is greater than 1 and less than Q; When the second quality parameter is greater than the second threshold, N equals 1.

12. The method according to claim 6, characterized in that, The first time period includes at least two first cycles, the at least two first cycles including an adjacent first cycle and a second cycle, and the multiple thresholds corresponding to the second cycle are determined based on the multiple thresholds corresponding to the first cycle and the first quality parameter.

13. The method according to claim 12, characterized in that, The first time period includes the Pth period and the (P+1)th period, where P is a positive integer, and the plurality of thresholds includes any threshold. The threshold corresponding to the (P+1)th period for: ； in, This represents any threshold corresponding to the Pth period. This represents the first quality parameter. Represents the weighting coefficient, 0 < <1.

14. The method according to claim 1 or 2, characterized in that, The second communication device includes a satellite in a non-terrestrial network (NTN), and the method further includes: The first communication device determines first-time information related to discontinuous coverage; Before entering a scenario with no network coverage, the first communication device determines whether to switch from the service cell corresponding to the satellite to the service cell of the terrestrial network based on the first auxiliary information.

15. The method according to claim 14, characterized in that, The first time information is determined based on a first distance between the satellite's projected position on the ground and the position of the first communication device.

16. The method according to claim 14, characterized in that, When the first communication device receives the first notification after leaving the network-free scenario, the first time period includes the network-free period, and the one or more paging messages include paging messages related to the first communication device cached by the second communication device.

17. The method according to claim 1 or 2, characterized in that, The first communication device receives a first notification sent by the second communication device, including: The first communication device decodes the configuration information of the transmitting antenna used to send the first notification; The first communication device decodes the first notification level corresponding to the first notification. The first communication device decodes the number of times the first notification is repeated.

18. A method for wireless communication, characterized in that, include: The second communication device sends a first notification to the first communication device; Wherein, the first notification is used to provide an alarm prompt to the first communication device, and the first notification is also used to indicate one or more paging within a first time period. The one or more paging includes paging that the first communication device has not successfully received and / or paging that the first communication device cannot successfully receive in the current state. The sending parameters of the first notification are determined based on the first quality parameters of the signal sent by the first communication device at the first moment. The method further includes: The second communication device predicts a second quality parameter based on the first quality parameter, wherein the second quality parameter is the quality parameter of the signal transmitted by the first communication device at any time after the first time.

19. The method according to claim 18, characterized in that, The first notification also includes one or more of the following information: The message identifier ID corresponding to the first notification; The number of the one or more paging requests; The initiating node of some or all of the paging in one or more paging; Information related to the events corresponding to the one or more paging requests.

20. The method according to claim 18 or 19, characterized in that, The first paging within the first time period is the first paging, and the first notification includes a first sequence, which is generated and / or scrambled according to at least one of the following parameters: Physical cell ID; The Temporary Mobile Subscriber Identity (TMSI) of the first communication device; The index number of the starting time domain position of the first notification's sending timing; The index number of the synchronization signal block associated with the first notification; The index number of the time-domain location associated with the first physical downlink control channel (PDCCH) corresponding to the first paging.

21. The method according to claim 18 or 19, characterized in that, The first notification is carried in one or more of the following: short message, dedicated channel, and system information block.

22. The method according to claim 18 or 19, characterized in that, The alarm notification method is determined based on at least one of the communication scenario of the first communication device, user settings, and the first notification level corresponding to the first notification.

23. The method according to claim 18 or 19, characterized in that, The sending parameters of the first notification are also determined based on one or more of the following parameters: The first paging opportunity and the first offset within the first time period; The end time of the first time period and the second offset; The first notification level corresponding to the first notification; The number of the first period included in the first time period.

24. The method according to claim 23, characterized in that, The first offset or the second offset is determined in relation to the service type of the first communication device and / or the first notification level.

25. The method according to claim 23, characterized in that, The first communication device is terminal device i among M terminal devices, where M is a positive integer and i is a natural number from 0 to M-1. The first time is time k. When the first quality parameter is... At time k+n, the quality parameters of the signal transmitted by terminal device i for: ； in, This represents the quality parameter of the signal transmitted by the terminal device i at time k-1, where k > 1 and n > 0.

26. The method according to claim 23, characterized in that, The first quality parameter is used to determine the second quality parameter, and the first notification level is determined based on the second quality parameter and a plurality of thresholds, the plurality of thresholds including a first threshold and a second threshold related to the second quality parameter, wherein the first threshold is less than the second threshold.

27. The method according to claim 26, characterized in that, The first notification is sent repeatedly, and the second quality parameter and the plurality of thresholds are used to determine the number of times the first notification is repeated.

28. The method according to claim 27, characterized in that, The first time period includes Q first cycles, where Q is a positive integer greater than 1, and the number of repetitions N of the first notification is: When the second quality parameter is less than or equal to the first threshold, N equals Q or Q-1; When the second quality parameter is greater than the first threshold and less than or equal to the second threshold, N is greater than 1 and less than Q; When the second quality parameter is greater than the second threshold, N equals 1.

29. The method according to claim 23, characterized in that, The first time period includes at least two first cycles, the at least two first cycles including an adjacent first cycle and a second cycle, and the multiple thresholds corresponding to the second cycle are determined based on the multiple thresholds corresponding to the first cycle and the first quality parameter.

30. The method according to claim 29, characterized in that, The first time period includes the Pth period and the (P+1)th period, where P is a positive integer, and the plurality of thresholds includes any threshold. The threshold corresponding to the (P+1)th period for: ； in, This represents any threshold corresponding to the Pth period. This represents the first quality parameter. Represents the weighting coefficient, 0 < <1.

31. The method according to claim 18 or 19, characterized in that, The second communication device includes a satellite in a non-terrestrial network (NTN), and the method further includes: The second communication device sends first auxiliary information to the first communication device; The first auxiliary information is used to determine whether the first communication device should switch from the service cell corresponding to the satellite to the service cell of the terrestrial network before entering a scenario without network coverage. Whether the first communication device enters a scenario without network coverage is determined based on first time information related to discontinuous coverage.

32. The method according to claim 31, characterized in that, The first time information is determined based on a first distance between the satellite's projected position on the ground and the position of the first communication device.

33. The method according to claim 31, characterized in that, When the first communication device receives the first notification after leaving the network-free scenario, the first time period includes the network-free period, and the one or more paging messages include paging messages related to the first communication device cached by the second communication device.

34. The method according to claim 18 or 19, characterized in that, The second communication device sends a first notification to the first communication device, including: The second communication device determines the configuration information of the transmitting antenna used to send the first notification; The second communication device determines the first notification level corresponding to the first notification; The second communication device determines the number of times the first notification is repeated based on the configuration information and the first notification level.

35. A device for wireless communication, characterized in that, The device is a first communication device, and the device includes: The receiving unit is used to receive the first notification sent by the second communication device; An execution unit is configured to issue an alarm notification based on the first notification. Wherein, the first notification is used to indicate one or more paging within a first time period, the one or more paging including paging that the first communication device did not successfully receive and / or paging that the first communication device cannot successfully receive in the current state, the sending parameters of the first notification are determined based on a first quality parameter of the signal sent by the first communication device at a first moment, the first quality parameter is used by the second communication device to predict a second quality parameter, the second quality parameter being the quality parameter of the signal sent by the first communication device at any moment after the first moment.

36. The apparatus according to claim 35, characterized in that, The first notification also includes one or more of the following information: The message identifier ID corresponding to the first notification; The number of the one or more paging requests; The initiating node of some or all of the paging in one or more paging; Information related to the events corresponding to the one or more paging requests.

37. The apparatus according to claim 35 or 36, characterized in that, The first paging within the first time period is the first paging, and the first notification includes a first sequence, which is generated and / or scrambled according to at least one of the following parameters: Physical cell ID; The Temporary Mobile Subscriber Identity (TMSI) of the first communication device; The index number of the starting time domain position of the first notification's sending timing; The index number of the synchronization signal block associated with the first notification; The index number of the time-domain location associated with the first physical downlink control channel (PDCCH) corresponding to the first paging.

38. The apparatus according to claim 35 or 36, characterized in that, The first notification is carried in one or more of the following: short message, dedicated channel, and system information block.

39. The apparatus according to claim 35 or 36, characterized in that, The alarm notification method is determined based on at least one of the communication scenario of the first communication device, user settings, and the first notification level corresponding to the first notification.

40. The apparatus according to claim 35 or 36, characterized in that, The sending parameters of the first notification are also determined based on one or more of the following parameters: The first paging opportunity and the first offset within the first time period; The end time of the first time period and the second offset; The first notification level corresponding to the first notification; The number of the first period included in the first time period.

41. The apparatus according to claim 40, characterized in that, The first offset or the second offset is determined in relation to the service type of the first communication device and / or the first notification level.

42. The apparatus according to claim 40, characterized in that, The first communication device is terminal device i among M terminal devices, where M is a positive integer and i is a natural number from 0 to M-1. The first time is time k. When the first quality parameter is... At time k+n, the quality parameters of the signal transmitted by terminal device i for: ； in, This represents the quality parameter of the signal transmitted by the terminal device i at time k-1, where k > 1 and n > 0.

43. The apparatus according to claim 40, characterized in that, The first quality parameter is used to determine the second quality parameter, and the first notification level is determined based on the second quality parameter and a plurality of thresholds, the plurality of thresholds including a first threshold and a second threshold related to the second quality parameter, wherein the first threshold is less than the second threshold.

44. The apparatus according to claim 43, characterized in that, The first notification is sent repeatedly, and the second quality parameter and the plurality of thresholds are used to determine the number of times the first notification is repeated.

45. The apparatus according to claim 44, characterized in that, The first time period includes Q first cycles, where Q is a positive integer greater than 1, and the number of repetitions N of the first notification is: When the second quality parameter is less than or equal to the first threshold, N equals Q or Q-1; When the second quality parameter is greater than the first threshold and less than or equal to the second threshold, N is greater than 1 and less than Q; When the second quality parameter is greater than the second threshold, N equals 1.

46. ​​The apparatus according to claim 40, characterized in that, The first time period includes at least two first cycles, the at least two first cycles including an adjacent first cycle and a second cycle, and the multiple thresholds corresponding to the second cycle are determined based on the multiple thresholds corresponding to the first cycle and the first quality parameter.

47. The apparatus according to claim 46, characterized in that, The first time period includes the Pth period and the (P+1)th period, where P is a positive integer, and the plurality of thresholds includes any threshold. The threshold corresponding to the (P+1)th period for: ； in, This represents any threshold corresponding to the Pth period. This represents the first quality parameter. Represents the weighting coefficient, 0 < <1.

48. The apparatus according to claim 35 or 36, characterized in that, The second communication device includes satellites in a non-terrestrial network (NTN), and the device further includes: The first determining unit is used to determine first time information related to discontinuous coverage; The second determining unit is used to determine, based on the first auxiliary information, whether to switch from the service cell corresponding to the satellite to the service cell of the terrestrial network before entering a scenario without network coverage.

49. The apparatus according to claim 48, characterized in that, The first time information is determined based on a first distance between the satellite's projected position on the ground and the position of the first communication device.

50. The apparatus according to claim 48, characterized in that, When the first communication device receives the first notification after leaving the network-free scenario, the first time period includes the network-free period, and the one or more paging messages include paging messages related to the first communication device cached by the second communication device.

51. The apparatus according to claim 35 or 36, characterized in that, The device further includes a decoding unit for: Decode the configuration information of the transmitting antenna used to send the first notification; Decode the first notification level corresponding to the first notification; Decode the number of times the first notification is repeated.

52. A device for wireless communication, characterized in that, The device is a second communication device, and the device includes: A sending unit is used to send a first notification to a first communication device; Wherein, the first notification is used to provide an alarm prompt to the first communication device, and the first notification is also used to indicate one or more paging within a first time period. The one or more paging includes paging that the first communication device has not successfully received and / or paging that the first communication device cannot successfully receive in the current state. The sending parameters of the first notification are determined based on the first quality parameters of the signal sent by the first communication device at the first moment. The device further includes: The prediction unit is configured to predict a second quality parameter based on the first quality parameter, wherein the second quality parameter is the quality parameter of the signal transmitted by the first communication device at any time after the first time.

53. The apparatus according to claim 52, characterized in that, The first notification also includes one or more of the following information: The message identifier ID corresponding to the first notification; The number of the one or more paging requests; The initiating node of some or all of the paging in one or more paging; Information related to the events corresponding to the one or more paging requests.

54. The apparatus according to claim 52 or 53, characterized in that, The first paging within the first time period is the first paging, and the first notification includes a first sequence, which is generated and / or scrambled according to at least one of the following parameters: Physical cell ID; The Temporary Mobile Subscriber Identity (TMSI) of the first communication device; The index number of the starting time domain position of the first notification's sending timing; The index number of the synchronization signal block associated with the first notification; The index number of the time-domain location associated with the first physical downlink control channel (PDCCH) corresponding to the first paging.

55. The apparatus according to claim 52 or 53, characterized in that, The first notification is carried in one or more of the following: short message, dedicated channel, and system information block.

56. The apparatus according to claim 52 or 53, characterized in that, The alarm notification method is determined based on at least one of the communication scenario of the first communication device, user settings, and the first notification level corresponding to the first notification.

57. The apparatus according to claim 52 or 53, characterized in that, The sending parameters of the first notification are also determined based on one or more of the following parameters: The first paging opportunity and the first offset within the first time period; The end time of the first time period and the second offset; The first notification level corresponding to the first notification; The number of the first period included in the first time period.

58. The apparatus according to claim 57, characterized in that, The first offset or the second offset is determined in relation to the service type of the first communication device and / or the first notification level.

59. The apparatus according to claim 57, characterized in that, The first communication device is terminal device i among M terminal devices, where M is a positive integer and i is a natural number from 0 to M-1. The first time is time k. When the first quality parameter is... At time k+n, the quality parameters of the signal transmitted by terminal device i for: ； in, This represents the quality parameter of the signal transmitted by the terminal device i at time k-1, where k > 1 and n > 0.

60. The apparatus according to claim 57, characterized in that, The first quality parameter is used to determine the second quality parameter, and the first notification level is determined based on the second quality parameter and a plurality of thresholds, the plurality of thresholds including a first threshold and a second threshold related to the second quality parameter, wherein the first threshold is less than the second threshold.

61. The apparatus according to claim 60, characterized in that, The first notification is sent repeatedly, and the second quality parameter and the plurality of thresholds are used to determine the number of times the first notification is repeated.

62. The apparatus according to claim 61, characterized in that, The first time period includes Q first cycles, where Q is a positive integer greater than 1, and the number of repetitions N of the first notification is: When the second quality parameter is less than or equal to the first threshold, N equals Q or Q-1; When the second quality parameter is greater than the first threshold and less than or equal to the second threshold, N is greater than 1 and less than Q; When the second quality parameter is greater than the second threshold, N equals 1.

63. The apparatus according to claim 57, characterized in that, The first time period includes at least two first cycles, the at least two first cycles including an adjacent first cycle and a second cycle, and the multiple thresholds corresponding to the second cycle are determined based on the multiple thresholds corresponding to the first cycle and the first quality parameter.

64. The apparatus according to claim 63, characterized in that, The first time period includes the Pth period and the (P+1)th period, where P is a positive integer, and the plurality of thresholds includes any threshold. The threshold corresponding to the (P+1)th period for: ； in, This represents any threshold corresponding to the Pth period. This represents the first quality parameter. Represents the weighting coefficient, 0 < <1.

65. The apparatus according to claim 52 or 53, characterized in that, The second communication device includes a satellite in a non-terrestrial network (NTN), and the transmitting unit is further configured to transmit first auxiliary information to the first communication device; The first auxiliary information is used to determine whether the first communication device should switch from the service cell corresponding to the satellite to the service cell of the terrestrial network before entering a scenario without network coverage. Whether the first communication device enters a scenario without network coverage is determined based on first time information related to discontinuous coverage.

66. The apparatus according to claim 65, characterized in that, The first time information is determined based on a first distance between the satellite's projected position on the ground and the position of the first communication device.

67. The apparatus according to claim 65, characterized in that, When the first communication device receives the first notification after leaving the network-free scenario, the first time period includes the network-free period, and the one or more paging messages include paging messages related to the first communication device cached by the second communication device.

68. The apparatus according to claim 52 or 53, characterized in that, The device further includes a determining unit for: Determine the configuration information of the transmitting antenna used to send the first notification; Determine the first notification level corresponding to the first notification; The number of repetitions of the first notification is determined based on the configuration information and the first notification level.

69. A communication device, characterized in that, It includes a memory and a processor, the memory being used to store a program, and the processor being used to invoke the program in the memory to perform the method as described in any one of claims 1-34.

70. An apparatus, characterized in that, Includes a processor for calling a program from memory to perform the method as described in any one of claims 1-34.

71. A chip, characterized in that, Includes a processor for calling a program from memory, causing a device on which the chip is mounted to perform the method as described in any one of claims 1-34.

72. A computer-readable storage medium, characterized in that, It contains a program that causes a computer to perform the method as described in any one of claims 1-34.

73. A computer program product, characterized in that, Includes a program that causes a computer to perform the method as described in any one of claims 1-34.

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