Paging method and system, network equipment and electronic equipment
By optimizing the paging strategy for satellite-connected terminals in the integrated space and earth scenario, the problem of low paging efficiency of satellite-connected terminals is solved, and a higher paging success rate and service quality are achieved.
Patent Information
- Application Number
- CN202310868236.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2023-07-14
- Publication Date
- 2025-01-14
AI Technical Summary
In the integrated scenario of space and earth, it is difficult for the existing technology to achieve accurate paging of satellite connected terminals, resulting in inefficient paging process and poor service quality.
Receive paging policy indications through network equipment, determine the paging policy configured for satellite services, and send it to satellite, optimize the paging repetition frequency and cycle to adapt to the characteristics of satellite connected terminals, improve paging success rate and service quality .
It improves the paging success rate of satellite connected terminals, reduces signaling resource consumption, and improves the quality of communication services in the integrated space and earth scenarios.
Smart Images
Figure CN119316933A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the field of communication technology, and in particular to a paging method, system, network device, and electronic device. Background Art
[0002] Currently, 3GPP (3rd Generation Partnership Project) or academia has conducted relevant research on the air-ground integrated scenario.
[0003] In the air-ground integrated scenario, the paging process focuses more on how to obtain accurate paging, for example, how the terminal reports its precise location to the network. Summary of the invention
[0004] A technical problem to be solved by the present disclosure is to propose a paging method for a satellite-connected terminal, which is applicable to an air-ground integrated scenario.
[0005] According to some embodiments of the present disclosure, a paging method is provided, including: a network device receives a paging policy indication, wherein the paging policy indication is used to indicate that a downlink data packet triggering paging is sent to a terminal connected to a satellite; the network device determines a paging policy of the terminal according to the paging policy indication, wherein the paging policy is a paging policy configured for satellite services; and the network device sends the terminal paging policy to the satellite so as to page the terminal.
[0006] In some embodiments, the network device is an access mobility management function AMF, and the network device receives a paging policy indication including: AMF receives a Namf interface communication N1N2 interface message transmission Namf_Communication_N1N2MessageTransfer message sent by a session management function SMF, wherein the Namf_Communication_N1N2MessageTransfer message carries a paging policy indication.
[0007] In some embodiments, the network device determines the paging policy of the terminal according to the paging policy indication, including: when the terminal is in the connection management idle CM-IDLE state, the AMF determines the paging policy of the terminal according to the paging policy indication, the data network DNN, the allocation and retention priority ARP and the 5G service quality indication 5QI.
[0008] In some embodiments, the network device is an access network node, and the network device receives a paging policy indication, including: the access network node receives a paging policy indication sent by an access mobility management function AMF, wherein the paging policy indication is obtained by the AMF from a Namf interface communication N1N2 interface message transmission Namf_Communication_N1N2MessageTransfer message sent by a session management function SMF.
[0009] In some embodiments, the network device determines the paging policy of the terminal according to the paging policy indication, including: when the terminal is in the connection management connection CM-CONNECTED state, the access network node determines the paging policy of the terminal according to the paging policy indication, the allocation and retention priority ARP and the 5G service quality indication 5QI.
[0010] In some embodiments, the network device sends the terminal paging policy to the satellite, including: the AMF sends a paging message to the access network node, wherein the paging message includes the paging policy, and the access network node forwards the paging message to the satellite.
[0011] In some embodiments, the paging strategy includes: indication information for turning on paging in energy saving mode, at least one of a paging repetition frequency and a paging cycle, the paging repetition frequency of the terminal is less than the paging repetition frequency of the terminal directly connected to the access network node, and the paging cycle of the terminal is greater than the paging cycle of the terminal directly connected to the access network node.
[0012] In some embodiments, the method further includes: the network device sending a paging message to the terminal via a satellite, wherein the paging message includes a paging strategy.
[0013] In some embodiments, the paging policy indication is sent by the session management function SMF to the network device. The paging policy indication is determined by the SMF based on the differentiated service code point DSCP. The DSCP is used to indicate that the downlink data packet is sent to the satellite-connected terminal and is carried by the downlink data packet sent by the user plane function UPF.
[0014] In some embodiments, the DSCP is determined by the UPF in response to receiving a downlink data packet and added to the downlink data packet when the downlink data packet is sent to a satellite-connected terminal.
[0015] According to some other embodiments of the present disclosure, a network device is provided, including: a receiver, used to receive a paging policy indication, wherein the paging policy indication is used to indicate that a downlink data packet triggering paging is sent to a terminal connected to a satellite; a controller, used to determine a paging policy of the terminal according to the paging policy indication, wherein the paging policy is a paging policy configured for satellite services; and a transmitter, used to send the terminal paging policy to the satellite so as to page the terminal.
[0016] According to some further embodiments of the present disclosure, a paging system is provided, comprising: a network device of any of the aforementioned embodiments, wherein, when the network device is an access mobility management function AMF, the paging system further comprises: an access network node, configured to receive a paging message sent by the AMF, and forward the paging message to a satellite, wherein the paging message includes a paging policy; or, when the network device is an access network node, the paging system further comprises: an AMF, configured to send a paging policy indication to the access network node when the terminal is in a connection management connection CM-CONNECTED state.
[0017] In some embodiments, the system also includes: a session management function SMF, used to receive a downlink data packet sent by a user plane function UPF, wherein the downlink data packet includes: a differentiated service code point DSCP used to indicate that the downlink data packet is sent to a satellite-connected terminal; determining a paging policy indication based on the DSCP; and sending the paging policy indication to a network device.
[0018] In some embodiments, the system further includes: a user plane function UPF, configured to, in response to receiving a downlink data packet, determine that the downlink data packet is sent to a satellite-connected terminal, and add a DSCP to the downlink data packet.
[0019] In some embodiments, the system further includes: a satellite, configured to receive a paging strategy of a terminal and send a paging message to the terminal according to the paging strategy.
[0020] In some embodiments, the system further includes: a terminal, configured to receive a paging message sent by a satellite, wherein the paging message includes a paging strategy.
[0021] According to some further embodiments of the present disclosure, an electronic device is provided, including: a processor; and a memory coupled to the processor, for storing instructions, which, when executed by the processor, causes the processor to execute the paging method of any of the aforementioned embodiments.
[0022] According to some further embodiments of the present disclosure, a non-transitory computer-readable storage medium is provided, on which a computer program is stored, wherein the program, when executed by a processor, implements the paging method of any of the aforementioned embodiments.
[0023] In the present disclosure, the paging policy indication received by the network device is used to indicate that the downlink data packet triggering paging is sent to the terminal connected to the satellite. The network device determines the paging policy configured for the satellite service for the terminal according to the paging policy indication, and sends the paging policy to the satellite to page the terminal. In the present disclosure, the paging policy indication is used to indicate the data packet of the satellite service, and the corresponding paging policy is configured for the satellite service, which is suitable for paging the terminal connected to the satellite, improving the service quality, and suitable for the space-ground integration scenario.
[0024] Other features and advantages of the present disclosure will become apparent from the following detailed description of exemplary embodiments of the present disclosure with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS
[0025] In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0026] Figure 1 A schematic diagram showing a flow chart of a paging method according to some embodiments of the present disclosure.
[0027] Figure 2 A schematic diagram showing a flow chart of a paging method according to some other embodiments of the present disclosure.
[0028] Figure 3 A schematic diagram showing the structure of a network device according to some embodiments of the present disclosure.
[0029] Figure 4 A schematic diagram showing the structure of a paging system according to some embodiments of the present disclosure is shown.
[0030] Figure 5 A schematic diagram showing the structure of an electronic device according to some embodiments of the present disclosure.
[0031] Figure 6 A schematic diagram showing the structure of an electronic device according to some other embodiments of the present disclosure. DETAILED DESCRIPTION
[0032] The technical solutions in the embodiments of the present disclosure will be clearly and completely described below in conjunction with the drawings in the embodiments of the present disclosure. Obviously, the described embodiments are only part of the embodiments of the present disclosure, rather than all of the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and is by no means intended to limit the present disclosure and its application or use. Based on the embodiments in the present disclosure, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present disclosure.
[0033] In the current 5G system, TA (Tracking Area) is a regional division of network coverage, and each cell belongs to a specific TA. The main purpose of TA is to ensure paging accessibility, that is, when the terminal (UE) registers, the core network will allocate RA (Routing Area) to the terminal to establish a context, and RA can include a TA list. If the terminal finds that the current connection or resident area of TA exceeds the scope of the current registration area, or the periodic update timer times out, the terminal should comply with the registration process to allow the core network to reallocate the registration area.
[0034] TA can be defined according to the covered beam (called mobile TA) or according to the area of the earth (called fixed TA). For the mobile TA case, a constant TA associated with the mobile beam is broadcast to the cell, thus avoiding the TA coverage jumping problem. However, this solution will bring a new problem, that is, the TA coverage on the same site will inevitably change. Considering the paging load, it is impossible to define a large registration area on the network side, which will force the terminal to perform the registration process too frequently. Typically, registration may be performed every few minutes. For the fixed TA case, an area on the earth is assigned a fixed specific TA, and it does not change with the coverage beam. Therefore, the fixed TA case is mainly considered to avoid the terminal from frequently performing the registration process.
[0035] Accurate paging is that the terminal accurately reports its location to the network, so that the network can allocate a reasonable registration area (called a TAI list) to the terminal. In the 5G ground system, the location information is only at the Cell / TAI level, which is too rough to meet the requirements of the satellite system. Therefore, in the design of the paging scheme for the satellite system, two types of location reports are required, one is the TA-related information in the registration process of NAS (Non-Access-Stratum), and the other is the reporting process of the terminal latitude and longitude introduced. The registration process of the NAS layer is the same as that of the ground system, and does not conflict with the reporting process of the terminal latitude and longitude. After the terminal reports its location information, the network side will maintain an accurate registration area for the terminal. At the same time, when the network side requests the terminal, the terminal's positioning information will be notified to the base station, and the base station will page the terminal in the corresponding beam based on the RA information and the terminal positioning.
[0036] The present disclosure proposes a paging method, as follows: Figures 1-2 Give a description.
[0037] Figure 1 Flow chart of some embodiments of the paging method disclosed in the present invention. Figure 1 As shown, the method of this embodiment includes: steps S102 to S106.
[0038] In step S102, the network device receives a paging policy indication.
[0039] The Paging Policy Indicator (PPI) is used to indicate that the downlink data packet triggering paging is sent to the terminal connected to the satellite. The newly added type or value of the PPI is used to indicate the data flow through the satellite.
[0040] Since when the terminal is in the CM-IDLE (Connection Management-Idle) state, the AMF (Access and Mobility Management Function) determines the paging strategy; when the terminal is in the CM-CONNECTED state, the (R)AN ((Radio) Access Network) node (such as a base station) determines the paging strategy. Therefore, the network device can be an AMF or an access network node.
[0041] In some embodiments, the AMF receives a Namf_Communication_N1N2MessageTransfer (Namf interface communication N1N2 interface message transfer) message sent by an SMF (Session Management Function), wherein the Namf_Communication_N1N2MessageTransfer message carries a paging policy indication.
[0042] In some embodiments, the access network node receives a paging policy indication sent by the access AMF, wherein the paging policy indication is obtained by the AMF from a Namf_Communication_N1N2MessageTransfer message sent by the SMF.
[0043] The paging policy indication is determined by the SMF and then sent to the AMF or access network node.
[0044] In step S104, the network device determines the paging policy of the terminal according to the paging policy indication.
[0045] The paging strategy is a paging strategy configured for satellite services, and a new paging strategy is defined for data traffic flowing through the satellite. In some embodiments, the paging strategy includes: indication information for turning on paging in energy-saving mode, at least one of a paging repetition frequency and a paging cycle, the paging repetition frequency of the terminal is less than the paging repetition frequency of the terminal directly connected to the access network node, and the paging cycle of the terminal is greater than the paging cycle of the terminal directly connected to the access network node.
[0046] The paging repetition frequency and / or paging cycle corresponding to the paging in the energy saving mode may be preconfigured. When the paging strategy only includes indication information for enabling paging in the energy saving mode, the paging repetition frequency and / or paging cycle may be determined according to the indication information.
[0047] Compared with terminals directly connected to the terrestrial network, terminals connected to satellites have lower paging repetition frequency and longer paging cycles. This is because satellite movement will cause the time for successful paging of the terminal to be longer. By reducing the paging repetition frequency and increasing the paging cycle, signaling resources can be saved.
[0048] The paging strategy is determined by the AMF or (R)AN node according to the different states of the terminal.
[0049] In some embodiments, when the terminal is in the CM-IDLE state, the AMF determines the paging policy of the terminal based on the paging policy indication, DNN (Data Network), ARP (Allocation and Retention Priority) and 5QI (5G Service Quality Indication).
[0050] In some embodiments, when the terminal is in the CM-CONNECTED state, the access network node determines the paging policy of the terminal according to the paging policy indication, ARP and 5QI.
[0051] In step S106, the network device sends the terminal paging strategy to the satellite so as to page the terminal.
[0052] In the case where the network device is AMF, the AMF sends a paging message to the access network node, wherein the paging message includes a paging policy, and the access network node forwards the paging message to the satellite.
[0053] In the case where the network device is an access network node, the access network node sends a paging message to the satellite, and the paging message includes a paging strategy.
[0054] The network device may also send a paging message to the terminal via a satellite, wherein the paging message includes a paging strategy.
[0055] In the above embodiment, the paging policy indication received by the network device is used to indicate that the downlink data packet triggering paging is sent to the terminal connected to the satellite. The network device determines the paging policy configured for the satellite service for the terminal according to the paging policy indication, and sends the paging policy to the satellite to page the terminal. In the above embodiment, the paging policy indication is used to indicate the data packet of the satellite service, and the corresponding paging policy is configured for the satellite service, which is suitable for paging the terminal connected to the satellite, improving the service quality, and is suitable for the air-ground integration scenario.
[0056] Combine the following Figure 2 Other embodiments of the paging method of the present disclosure are described.
[0057] Figure 2 Flow charts of other embodiments of the paging method disclosed in the present invention. Figure 2 As shown, the method of this embodiment includes: steps S202 to S214.
[0058] In step S202, in response to receiving a downlink data packet, the UPF (User Plane Function) determines that the downlink data packet is sent to a satellite-connected terminal, and adds a DSCP (Differentiated Services Code Point) to the downlink data packet.
[0059] The terminal has signed a satellite service contract and is currently in a remote area and needs satellite access. In the case where the network system supports paging policy differentiation, DSCP can be set to indicate which paging policy the network needs to apply for a specific IP packet. For example, UPF can provide differentiated paging for the data traffic / satellite service flowing through the satellite in the terminal session by marking the downlink data packet to be sent to the terminal supporting satellite access services (e.g., broadband communication services, environmental monitoring services, remote area services, Internet of Things services).
[0060] When a downlink data packet arrives, it triggers a service request on the network side. UPF sends a data notification (DataNotification) message to SMF, and SMF sends a data notification response (Data Notification Ack) to UPF. If UPF supports the paging policy differentiation function, UPF marks the downlink data packet with DSCP for the data traffic flowing through the satellite. DSCP is used to indicate that the downlink data packet is sent to the terminal connected to the satellite, that is, the data traffic flowing through the satellite.
[0061] In step S204, UPF sends a downlink data packet to SMF, and correspondingly, SMF receives the downlink data packet sent by UPF.
[0062] UPF marks the downlink data packets of data traffic flowing through the satellite with DSCP and then sends them to SMF.
[0063] In step S206, the SMF determines the paging policy indication according to the DSCP, and sends the paging policy indication to the AMF. Correspondingly, the AMF receives the paging policy indication sent by the SMF.
[0064] If SMF supports the paging policy differentiation function, SMF will determine the paging policy indication based on the DSCP in the data reminder message sent by UPF, and determine the QoS (Quality of Service) Flow corresponding to the data traffic flowing through the satellite. SMF sends the paging policy indication to AMF through Namf_Communication_N1N2MessageTransfer, and AMF can reply Namf_Communication_N1N2MessageTransfer Response to SMF.
[0065] In step S208, when the terminal is in the CM-IDLE state, the AMF determines the paging policy of the terminal according to the paging policy indication and sends the paging policy to the access network node.
[0066] The AMF configures the paging strategy of the satellite service according to the DNN, APR, paging strategy indication, and 5QI information. The AMF can send a paging message to the access network node, and the paging message includes the paging strategy. The paging strategy includes: indication information for turning on paging in energy-saving mode, at least one of the paging repetition frequency and the paging cycle.
[0067] In step S209, when the terminal is in the CM-CONNECTED state, the AMF sends a paging policy indication to the access network node.
[0068] The AMF can also send APR, 5QI information, etc. to the access network node, which can be sent through a paging message.
[0069] In step S210, the access network node determines the paging policy of the terminal according to the paging policy indication.
[0070] The access network node determines the paging strategy of the terminal according to the paging strategy indication, ARP and 5QI. The paging strategy includes: indication information of turning on paging in energy saving mode, at least one of paging repetition frequency and paging cycle.
[0071] In step S212, the access network node sends the paging strategy to the satellite.
[0072] The access network node sends a paging message to the satellite, and the paging message includes a paging strategy.
[0073] In step S214, the satellite sends a paging message to the terminal, wherein the paging message carries a paging strategy.
[0074] The above embodiment provides a paging method in an air-space-ground scenario. In the air-space-ground integrated communication network scenario, a new paging strategy is defined for the data traffic / satellite service flowing through the satellite, a differentiated paging strategy is designed for the terminal, and the paging strategy indication, DSCP marking method, etc. are expanded to achieve differentiated paging, thereby improving the service quality of the communication network and reducing signaling overhead.
[0075] The present disclosure also provides a network device, Figure 3 Give a description.
[0076] Figure 3 FIG. 1 is a structural diagram of some embodiments of the network device disclosed in the present invention. Figure 3 As shown, the network device 30 of this embodiment includes: a receiver 310, a controller 320, a transmitter 330
[0077] The receiver 310 is used to receive a paging policy indication, wherein the paging policy indication is used to indicate that a downlink data packet triggering paging is sent to a satellite-connected terminal.
[0078] The controller 320 is used to determine the paging strategy of the terminal according to the paging strategy indication, wherein the paging strategy is a paging strategy configured for the satellite service.
[0079] The transmitter 330 is used to send the terminal paging strategy to the satellite so as to page the terminal.
[0080] In some embodiments, when the network device is AMF, the receiver 310 is used to receive a Namf interface communication N1N2 interface message transmission Namf_Communication_N1N2MessageTransfer message sent by a session management function SMF, wherein the Namf_Communication_N1N2MessageTransfer message carries a paging policy indication.
[0081] In some embodiments, when the network device is AMF, the controller 320 is used to determine the paging policy of the terminal according to the paging policy indication, the data network DNN, the allocation and retention priority ARP, and the 5G service quality indication 5QI when the terminal is in the connection management idle CM-IDLE state.
[0082] In some embodiments, when the network device is an AMF, the transmitter 330 is used to send a paging message to an access network node, wherein the paging message includes a paging policy, and the access network node forwards the paging message to the satellite.
[0083] In some embodiments, when the network device is an access network node, the receiver 310 is used to receive a paging policy indication sent by an access mobility management function AMF, wherein the paging policy indication is obtained by the AMF from a Namf_Communication_N1N2MessageTransfer message sent by a session management function SMF.
[0084] In some embodiments, when the network device is an access network node, the controller 320 is used to determine the paging policy of the terminal according to the paging policy indication, allocation and retention priority ARP and 5G service quality indication 5QI when the terminal is in a connection management connection CM-CONNECTED state.
[0085] In some embodiments, the paging strategy includes: indication information for turning on paging in energy saving mode, at least one of a paging repetition frequency and a paging cycle, the paging repetition frequency of the terminal is less than the paging repetition frequency of the terminal directly connected to the access network node, and the paging cycle of the terminal is greater than the paging cycle of the terminal directly connected to the access network node.
[0086] In some embodiments, the transmitter 330 is further configured to send a paging message to the terminal via a satellite, wherein the paging message includes a paging policy.
[0087] In some embodiments, the paging policy indication is sent by the session management function SMF to the network device. The paging policy indication is determined by the SMF based on the differentiated service code point DSCP. The DSCP is used to indicate that the downlink data packet is sent to the satellite-connected terminal and is carried by the downlink data packet sent by the user plane function UPF.
[0088] In some embodiments, the DSCP is determined by the UPF in response to receiving a downlink data packet and added to the downlink data packet when the downlink data packet is sent to a satellite-connected terminal.
[0089] The present disclosure also provides a paging system, Figure 4 Give a description.
[0090] Figure 4 FIG. 1 is a structural diagram of some embodiments of the paging system disclosed in the present invention. Figure 4 As shown, the system 4 of this embodiment includes: AMF 41 and access network node 42. AMF 41 or access network node 42 can be the network device 30 in the aforementioned embodiment, and the specific functions can refer to the aforementioned embodiment, which will not be repeated here.
[0091] When the AMF 41 is the network device 30, the access network node 42 is used to receive the paging message sent by the AMF 41 and forward the paging message to the satellite, wherein the paging message includes a paging strategy.
[0092] When the access node 42 is the network device 30, the AMF 41 is used to send a paging policy indication to the access network node 42 when the terminal is in a connection management connection CM-CONNECTED state.
[0093] In some embodiments, system 4 also includes: SMF43, used to receive downlink data packets sent by UPF, wherein the downlink data packets include: DSCP used to indicate that the downlink data packets are sent to a satellite-connected terminal; determining a paging policy indication based on DSCP; and sending the paging policy indication to AMF41.
[0094] In some embodiments, the system 4 further includes: UPF 44, configured to, in response to receiving a downlink data packet, determine that the downlink data packet is sent to a satellite-connected terminal, and add a DSCP to the downlink data packet.
[0095] In some embodiments, the system 4 further includes: a satellite 45, configured to receive a paging policy of a terminal and send a paging message to the terminal according to the paging policy.
[0096] In some embodiments, the system 4 further includes: a terminal 46, configured to receive a paging message sent by the satellite 45, wherein the paging message includes a paging strategy.
[0097] The electronic devices (such as network devices, SMF, UPF, and terminals) in the embodiments of the present disclosure may be implemented by various computing devices or computer systems. Figure 5 as well as Figure 6 Give a description.
[0098] Figure 5 FIG. 1 is a structural diagram of some embodiments of the electronic device disclosed in the present invention. Figure 5 As shown, the electronic device 50 of this embodiment includes: a memory 510 and a processor 520 coupled to the memory 510 , and the processor 520 is configured to execute the paging method in any of some embodiments of the present disclosure based on instructions stored in the memory 510 .
[0099] The memory 510 may include, for example, a system memory, a fixed non-volatile storage medium, etc. The system memory may store, for example, an operating system, an application program, a boot loader, a database, and other programs.
[0100] Figure 6 FIG. 1 is a structural diagram of some other embodiments of the electronic device disclosed in the present invention. Figure 6As shown, the electronic device 60 of this embodiment includes: a memory 610 and a processor 620, which are similar to the memory 510 and the processor 520 respectively. It can also include an input and output interface 630, a network interface 640, a storage interface 650, etc. These interfaces 630, 640, 650 and the memory 610 and the processor 620 can be connected, for example, through a bus 660. Among them, the input and output interface 630 provides a connection interface for input and output devices such as a display, a mouse, a keyboard, and a touch screen. The network interface 640 provides a connection interface for various networked devices, for example, it can be connected to a database server or a cloud storage server. The storage interface 650 provides a connection interface for external storage devices such as SD cards and USB flash drives.
[0101] Those skilled in the art will appreciate that the embodiments of the present disclosure may be provided as methods, systems, or computer program products. Therefore, the present disclosure may take the form of a complete hardware embodiment, a complete software embodiment, or an embodiment combining software and hardware. Moreover, the present disclosure may take the form of a computer program product implemented on one or more computer-usable non-transient storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) containing computer-usable program code.
[0102] The present disclosure is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the embodiments of the present disclosure. It should be understood that each process and / or box in the flowchart and / or block diagram, as well as the combination of the processes and / or boxes in the flowchart and / or block diagram, can be implemented by computer program instructions. These computer program instructions can be provided to a processor of a general-purpose computer, a special-purpose computer, an embedded processor, or other programmable data processing device to generate a machine, so that the instructions executed by the processor of the computer or other programmable data processing device generate instructions for implementing the processes in the flowchart and / or block diagram. Figure 1 A process or multiple processes and / or boxes Figure 1 A device that provides the functions specified in a block or multiple blocks.
[0103] These computer program instructions may also be stored in a computer-readable memory capable of directing a computer or other programmable data processing device to operate in a specific manner, so that the instructions stored in the computer-readable memory produce an article of manufacture comprising an instruction device, which implements the process Figure 1 A process or multiple processes and / or boxes Figure 1 A function specified in one or more boxes.
[0104] These computer program instructions can also be loaded onto a computer or other programmable data processing device so that a series of operating steps are executed on the computer or other programmable device to produce a computer-implemented process, thereby providing instructions for implementing the process. Figure 1 A process or multiple processes and / or boxes Figure 1 The steps for the functions specified in one or more boxes.
[0105] The above description is only a preferred embodiment of the present disclosure and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present disclosure should be included in the protection scope of the present disclosure.
Claims
1. A paging method, comprising: The network device receives a paging policy indication, wherein the paging policy indication is used to indicate that a downlink data packet triggering paging is sent to a satellite-connected terminal; The network device determines the paging strategy of the terminal according to the paging strategy indication, wherein the paging strategy is a paging strategy configured for a satellite service; The network device sends the terminal paging strategy to the satellite so as to page the terminal.
2. The paging method according to claim 1, wherein: The network device is an access mobility management function AMF, and the network device receives a paging policy indication including: The AMF receives the Namf interface communication N1N2 interface message transmission Namf_Communication_N1N2MessageTransfer message sent by the session management function SMF, wherein the Namf_Communication_N1N2MessageTransfer message carries the paging policy indication.
3. The paging method according to claim 2, wherein: The network device determining the paging strategy of the terminal according to the paging strategy indication includes: When the terminal is in the connection management idle CM-IDLE state, the AMF determines the paging policy of the terminal according to the paging policy indication, the data network DNN, the allocation and retention priority ARP, and the 5G service quality indication 5QI.
4. The paging method according to claim 1, wherein: The network device is an access network node, and the network device receiving the paging policy indication includes: The access network node receives a paging policy indication sent by an access mobility management function AMF, wherein the paging policy indication is obtained by the AMF from a Namf interface communication N1N2 interface message transmission Namf_Communication_N1N2MessageTransfer message sent by a session management function SMF.
5. The paging method according to claim 4, wherein: The network device determining the paging strategy of the terminal according to the paging strategy indication includes: When the terminal is in a connection management connection CM-CONNECTED state, the access network node determines the paging policy of the terminal according to the paging policy indication, allocation and retention priority ARP and 5G service quality indication 5QI.
6. The paging method according to claim 2, wherein: The network device sending the terminal paging strategy to the satellite includes: The AMF sends a paging message to an access network node, wherein the paging message includes the paging policy, and the access network node forwards the paging message to the satellite.
7. The paging method according to any one of claims 1 to 6, wherein: The paging strategy includes: indication information for turning on paging in energy-saving mode, at least one of a paging repetition frequency and a paging cycle, the paging repetition frequency of the terminal is less than the paging repetition frequency of the terminal directly connected to the access network node, and the paging cycle of the terminal is greater than the paging cycle of the terminal directly connected to the access network node.
8. The paging method according to any one of claims 1 to 6, further comprising: The network device sends a paging message to the terminal via the satellite, wherein the paging message includes the paging policy.
9. The paging method according to any one of claims 1 to 6, wherein: The paging policy indication is sent by the session management function SMF to the network device. The paging policy indication is determined by the SMF according to the differentiated service code point DSCP. The DSCP is used to indicate that the downlink data packet is sent to the terminal connected to the satellite and is carried by the downlink data packet sent by the user plane function UPF.
10. The paging method according to claim 9, wherein: The DSCP is determined by the UPF in response to receiving the downlink data packet, and is added to the downlink data packet to determine that the downlink data packet is sent to the terminal connected to the satellite.
11. A network device comprising: A receiver, used to receive a paging policy indication, wherein the paging policy indication is used to indicate that a downlink data packet triggering paging is sent to a satellite-connected terminal; A controller, configured to determine a paging strategy of the terminal according to the paging strategy indication, wherein the paging strategy is a paging strategy configured for a satellite service; A transmitter is used to send the terminal paging strategy to the satellite so as to page the terminal.
12. A paging system comprising: The network device of claim 11, wherein, when the network device is an access mobility management function (AMF), the paging system further comprises: an access network node, configured to receive a paging message sent by the AMF and forward the paging message to a satellite, wherein the paging message includes the paging policy; or In the case where the network device is an access network node, the paging system further includes: AMF, configured to send a paging policy indication to the access network node when the terminal is in a connection management connection CM-CONNECTED state.
13. The paging system of claim 12, further comprising: The session management function SMF is used to receive the downlink data packet sent by the user plane function UPF, wherein the downlink data packet includes: a differentiated service code point DSCP used to indicate that the downlink data packet is sent to the terminal connected to the satellite; determine the paging policy indication according to the DSCP; and send the paging policy indication to the network device.
14. The paging system of claim 13, further comprising: A user plane function UPF is configured to, in response to receiving the downlink data packet, determine that the downlink data packet is sent to the terminal connected to the satellite, and add the DSCP in the downlink data packet.
15. The paging system according to any one of claims 12 to 14, further comprising: The satellite is used to receive the paging strategy of the terminal and send a paging message to the terminal according to the paging strategy.
16. The paging system of claim 15, further comprising: The terminal is used to receive a paging message sent by the satellite, wherein the paging message includes the paging strategy.
17. An electronic device comprising: processor; as well as A memory coupled to the processor, for storing instructions, wherein when the instructions are executed by the processor, the processor executes the paging method according to any one of claims 1 to 10.
18. A non-transitory computer-readable storage medium having a computer program stored thereon, wherein: When the program is executed by a processor, the steps of the method according to any one of claims 1 to 10 are implemented.