Paging notification method, device, equipment and medium

Abstract

The invention relates to the technical field of wireless communication and terminals, in particular to a paging notification method, device and equipment and a medium, which are used for paging remote UE (User Equipment) in a multi-hop layer-2 (U2N) relay scene. As the L2U2N relay UE can send the monitoring PO request containing the 5G-S-TMSI to the L2U2N relay UE at the upper level when receiving the monitoring PO request containing the 5G-S-TMSI of the L2U2N Remote UE sent by the L2U2N Remote UE, the monitoring PO request is sent to the L2U2N relay UE directly connected with the base station, the L2U2N relay UE directly connected with the base station monitors the PO corresponding to the 5G-S-TMSI, and on the basis of the monitoring PO request, the monitoring PO request containing the 5G-S-TMSI can be sent to the L2U2N relay UE directly connected with the base station. The purpose of performing remote UE paging in a multi-hop layer-2 U2N relay scene can be achieved.

Description

Technical Field

[0001] The present application relates to the field of wireless communication and terminal technology, and in particular to a paging notification method, device, equipment and medium. Background Art

[0002] In the related art, generally only a solution is provided for how to perform paging of a remote user equipment (UE) in a single-hop layer 2 (Layer 2, L2) type UE-to-Network (UE-to-Network, U2N) relay scenario. However, this solution is not applicable to a multi-hop layer 2 U2N relay scenario.

[0003] As the popularity of multi-hop layer 2 U2N relay continues to increase, how to perform paging of remote UE in a multi-hop layer 2 U2N relay scenario has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] The present application provides a paging notification method, apparatus, device and medium for paging a remote UE in a multi-hop layer 2 U2N relay scenario.

[0005] In a first aspect, the present application provides a paging notification method, the method comprising:

[0006] receiving a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2 U2N Remote UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE;

[0007] Send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

[0008] In a possible implementation manner, the sending of the monitoring PO request including the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, includes:

[0009] Sending the monitoring PO request to the upper level L2 U2N relay UE;

[0010] If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending; otherwise, make the upper-level L2 U2N relay UE send the monitoring PO request again to the next upper-level relayUE until the monitoring PO request is sent to the L2U2N relay UE directly connected to the base station.

[0011] In a possible implementation manner, the sending of the monitoring PO request including the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, includes:

[0012] The monitoring PO request and the set multi-hop paging indication are sent to the upper-level L2 U2N relay UE accordingly, so that the monitoring PO request and the multi-hop paging indication are sent to the L2U2N relay UE directly connected to the base station accordingly.

[0013] In a possible implementation, the method further includes:

[0014] If a paging notification message containing the 5G-S-TMSI is received from the upper-level L2 U2N relay UE, the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, so that the L2 U2N Remote UE responds to the paging notification message.

[0015] In a possible implementation manner, after receiving the monitoring paging occasion PO request sent by the layer 2 type user equipment to the network remote user equipment L2U2N Remote UE, the method further includes:

[0016] Identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

[0017] In a possible implementation manner, sending the paging notification message to the L2 U2N Remote UE corresponding to the 5G-S-TMSI includes:

[0018] Obtaining, according to the first corresponding relationship saved in advance, an identifier of the first connection link corresponding to the 5G-S-TMSI;

[0019] The paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

[0020] In a possible implementation, the method further includes:

[0021] If it is identified that the connection with the L2 U2N Remote UE is disconnected, the monitoring PO cancellation request containing the 5G-S-TMSI is sent to the upper-level L2 U2N relay UE, so that the monitoring PO cancellation request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2U2N relay UE directly connected to the base station cancels the monitoring of the 5G-S-TMSI.

[0022] In a possible implementation, the method further includes:

[0023] If a first correspondence between the 5G-S-TMSI and the identifier of the first connection link is saved, the first correspondence is deleted.

[0024] In a second aspect, the present application provides a paging notification method, the method comprising:

[0025] If a monitoring PO request is received from the next-level L2 U2N relay UE, the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request is monitored;

[0026] receiving a paging notification message, where the paging notification message includes the 5G-S-TMSI;

[0027] Send a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2U2N Remote UE.

[0028] In a third aspect, the present application provides a paging notification device, the device comprising:

[0029] The first receiving module is used to receive a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2 U2NRemoteUE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2NRemote UE;

[0030] The first sending module is used to send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

[0031] In a fourth aspect, the present application provides a paging notification device, the device comprising:

[0032] The second receiving module is used to monitor the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request if a monitoring PO request sent by the next-level L2 U2N relay UE is received;

[0033] The second receiving module is further used to receive a paging notification message, where the paging notification message includes the 5G-S-TMSI;

[0034] The second sending module is used to send a paging notification message containing the 5G-S-TMSI to the next-level L2U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2N Remote UE.

[0035] In a fifth aspect, the present application provides a paging notification system, the system comprising:

[0036] A layer 2 user equipment to a network remote user equipment L2 U2N Remote UE, used to send a monitoring paging occasion PO request to a layer 2 user equipment to a network relay user equipment L2 U2N relay UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE;

[0037] The L2 U2N relay UE is used to send a monitoring PO request including the 5G-S-TMSI to the upper-level L2U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station;

[0038] The L2 U2N relay UE directly connected to the base station is used to monitor the PO corresponding to the 5G-S-TMSI;

[0039] The L2 U2N relay UE directly connected to the base station is also used to receive a paging notification message, which includes the 5G-S-TMSI; send a paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI.

[0040] In a sixth aspect, the present application provides an electronic device, which includes at least a processor and a memory, and the processor is used to implement the steps of any of the above methods when executing a computer program stored in the memory.

[0041] In a seventh aspect, the present application provides a computer-readable storage medium storing a computer program, which implements the steps of any of the above methods when executed by a processor.

[0042] Because in the embodiment of the present application, the L2 U2N relay UE directly connected to the L2 U2N Remote UE can send a monitoring PO request containing the 5G-S-TMSI to the upper-level L2 U2N relay UE when receiving the monitoring PO request containing the 5G-S-TMSI of the L2 U2N Remote UE sent by the L2 U2N Remote UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI. Based on this, the purpose of remote UE paging can be achieved in a multi-hop layer 2 U2N relay scenario. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] In order to more clearly illustrate the implementation methods in the embodiments of the present application or the related technologies, the following is a brief introduction to the drawings required for use in the embodiments or the related technology descriptions. Obviously, the drawings described below are some embodiments of the present application, and a person skilled in the art can also obtain other drawings based on these drawings.

[0044] Figure 1 A schematic diagram of a first paging notification process provided by some embodiments of the present application is shown;

[0045] Figure 2 A schematic diagram of a second paging notification process provided by some embodiments of the present application is shown;

[0046] Figure 3 A schematic diagram of a third paging notification process provided by some embodiments of the present application is shown;

[0047] Figure 4 A schematic diagram of a fourth paging notification process provided by some embodiments of the present application is shown;

[0048] Figure 5 A schematic diagram of a fifth paging notification process provided by some embodiments of the present application is shown;

[0049] Figure 6 A sixth paging notification process schematic diagram provided by some embodiments of the present application is shown;

[0050] Figure 7 A schematic diagram of a paging notification device provided in some embodiments of the present application is shown;

[0051] Figure 8 A schematic diagram of another paging notification device provided in some embodiments of the present application is shown;

[0052] Fig. 9 A schematic diagram of a paging notification system provided by some embodiments of the present application is shown;

[0053] Fig.10 A schematic diagram of the structure of an electronic device provided in some embodiments of the present application is shown. DETAILED DESCRIPTION

[0054] In order to make the purpose, technical solutions and advantages of this application clearer, this application will be further described in detail below in conjunction with the accompanying drawings. Obviously, the embodiments described in this application are only part of the embodiments of this application, rather than all the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of this application.

[0055] It should be noted that the brief description of terms in this application is only for the convenience of understanding the embodiments described below, and is not intended to limit the embodiments of this application. Unless otherwise specified, these terms should be understood according to their common and usual meanings.

[0056] The terms "first", "second", "third", etc. in the specification and claims of this application and the above drawings are used to distinguish similar or similar objects or entities, and do not necessarily mean to limit a specific order or sequence, unless otherwise noted. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances.

[0057] The terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device comprising a list of components is not necessarily limited to all the components expressly listed but may include other components not expressly listed or inherent to such product or device.

[0058] The term "module" refers to any known or later developed hardware, software, firmware, artificial intelligence, fuzzy logic, or combination of hardware and / or software code that is capable of performing the functions associated with that element.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

[0060] In order to perform paging of a remote UE in a multi-hop layer 2 U2N relay scenario, the present application provides a paging notification method, apparatus, device and medium.

[0061] Embodiment 1:

[0062] Figure 1 A schematic diagram of a first paging notification process provided by some embodiments of the present application is shown. Figure 1 As shown, the process includes the following steps:

[0063] S101: receiving a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2 U2N Remote UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE.

[0064] The paging notification method provided in the embodiment of the present application is applied to a layer 2 (Layer 2, L2) type user equipment to a network (UE-to-Network, U2N) relay (relay) user equipment (UE), and the layer 2 type user equipment to the network relay user equipment can be called L2 U2N relay UE, wherein the L2 U2N relay UE can be connected to the layer 2 type user equipment to the network remote (remote) user equipment through a network, etc., and the layer 2 type user equipment to the network remote user equipment can be called L2 U2N Remote UE.

[0065] In a possible implementation, when the L2 U2N Remote UE recognizes that it is connected to any L2 U2N relay UE, it may consider that it is accessing the network through the layer 2 U2N relay. The L2 U2N Remote UE may send a monitoring paging occasion (paging Occasion, PO) request to the L2 U2N relay UE connected to it. Optionally, the monitoring PO request may also be called a request proxy paging message. The monitoring PO request may include the L2 U2N Remote UE's own temporary mobile subscription identifier (5G S-Temporary Mobile Subs cription Identifier, 5G-S-TMSI). It can be understood that the L2 U2N relay UE can receive the monitoring PO request sent by the L2 U2N Remote UE connected to it, and identify the 5G-S-TMSI contained in the monitoring PO request.

[0066] Optionally, before sending a monitoring PO request to the L2 U2N relay UE connected to itself, the L2 U2N Remote UE may also determine whether the L2 U2N Remote UE itself is currently in an idle state (idle), where the idle state may also be referred to as a Radio Resource Control Idle state (RRC_IDLE). If the L2 U2N Remote UE identifies that it is currently in an idle state, it may proceed with the subsequent step of sending a monitoring PO request to the L2 U2N relay UE connected to itself.

[0067] S102: Send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relayUE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

[0068] In a possible implementation, in a multi-hop layer 2 U2N relay scenario, the L2 U2N relay UE directly connected (directly connected) to the L2 U2N Remote UE is not the L2 U2N relay UE directly connected to the base station, and the L2 U2N relay UE directly connected to the L2 U2N Remote UE does not have the ability to monitor air interface paging. In order to perform paging of remote UEs in a multi-hop layer 2 U2N relay scenario, when the L2 U2N relay UE directly connected to the L2 U2N Remote UE receives a monitoring PO request sent by the L2 U2N Remote UE, it can send a monitoring PO request containing the 5G-S-TMSI of the L2 U2N Remote UE to its upper-level L2 U2N relay UE.

[0069] Optionally, if the upper-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the base station, the upper-level L2 U2N relay UE will again send the monitoring PO request containing 5G-S-TMSI to its upper-level L2 U2N relay UE. If the upper-level L2 U2N relay UE is the L2U2N relay UE directly connected to the base station, stop sending. Optionally, if the upper-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the base station, the upper-level L2 U2N relay UE may again send the monitoring PO request containing 5G-S-TMSI to its upper-level L2 U2N relay UE. If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending. Optionally, if the next-upper-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the base station, the next-upper-level L2 U2N relay UE can again send the monitoring PO request containing 5G-S-TMSI to its next-upper-level L2 U2N relay UE..., and the above sending process can be repeated several times until the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station. The present application does not specifically limit the number of times the monitoring PO request is sent. In other words, there is no specific limitation on the number of L2 U2N relay UEs included between the L2 U2N relay UE directly connected to the L2 U2N Remote UE and the L2 U2N relay UE directly connected to the base station. The number of L2 U2N relay UEs included between the two L2 U2N relay UEs can be 0 or any natural number not less than 1.

[0070] Optionally, before sending the monitoring PO request to its upper-level L2 U2N relay UE, the L2 U2N relay UE may also determine whether the L2 U2N relay UE itself is currently in an idle state. If the L2 U2N relay UE identifies that it is currently in an idle state, it may perform a subsequent step of sending the monitoring PO request to its upper-level L2 U2N relay UE.

[0071] In a possible implementation, after sending a monitoring PO request containing 5G-S-TMSI to the L2 U2N relay UE directly connected to the base station, the L2 U2N relay UE directly connected to the base station can monitor the PO corresponding to the 5G-S-TMSI. Among them, when the L2 U2N relay UE directly connected to the base station monitors the PO, it can monitor the PO corresponding to the 5G-S-TMSI based on calculation methods such as 5G-S-TMSI mod 1024, which will not be repeated here, and this application does not specifically limit the specific monitoring method.

[0072] Optionally, after receiving the monitoring PO request sent by the next-level L2 U2N relay UE, the L2 U2N relay UE directly connected to the base station can also determine whether it is currently in an idle state (idle) before monitoring the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request. If it is identified that it is currently in an idle state, it will perform subsequent steps to monitor the PO corresponding to the 5G-S-TMSI.

[0073] In a possible implementation, when the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI, the 5G-S-TMSI can be added to its own monitoring list. When the base station pages the L2 U2N Remote UE corresponding to the 5G-S-TMSI, the L2 U2N relay UE directly connected to the base station can receive the corresponding paging notification message. When it is determined that the 5G-S-TMSI included in the paging notification message is in its own monitoring list, a paging notification message containing the 5G-S-TMSI can be sent to the next-level L2 U2N relay UE, so that the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI. Among them, sending a paging notification message and sending a monitoring PO request can be considered as two sending processes in opposite directions. The sending link is the same, but the sending direction is opposite. The upper-level L2 U2N relay UE and the lower-level L2 U2N relay UE in the embodiment of the present application are only for the convenience of expression and distinction between the two sending processes and sending directions, and are not used to limit the specific L2 U2N relay UE.

[0074] Optionally, the process of sending a paging notification message may be: the L2 U2N relay UE directly connected to the base station sends a paging notification message containing 5G-S-TMSI to the next-level L2 U2N relay UE. If the next-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the L2 U2N Remote UE, the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2NRemote UE. Otherwise, if the next-level L2 U2N relay UE is not the L2 U2N relay UE directly connected to the L2 U2N Remote UE, the next-level L2 U2N relay UE may send the paging notification message again to the next-level L2 U2N relay UE. Optionally, if the next-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the L2 U2N Remote UE, the next-level L2 U2N relay UE can send the paging notification message to the next-level L2 U2N relay UE again; if the next-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the L2 U2N Remote UE, the next-level L2 U2N relay UE can send the paging notification message to the next-level L2 U2N relay UE again… The above sending process can be repeated several times until the paging notification message is sent to the L2 U2N relay UE directly connected to the L2 U2N Remote UE, and the L2 U2N relay UE directly connected to the L2 U2NRemote UE sends the paging notification message to the L2 U2N RemoteUE. It will not be repeated here. Optionally, after receiving the paging notification message, the L2 U2N Remote UE may respond to the paging notification message, which is not specifically limited in the present application.

[0075] Because in the embodiment of the present application, the L2 U2N relay UE directly connected to the L2 U2N Remote UE can send a monitoring PO request containing the 5G-S-TMSI to the upper-level L2 U2N relay UE when receiving the monitoring PO request containing the 5G-S-TMSI of the L2 U2N Remote UE sent by the L2 U2N Remote UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI. Based on this, the purpose of remote UE paging can be achieved in a multi-hop layer 2 U2N relay scenario.

[0076] Embodiment 2:

[0077] In order to improve the accuracy of paging the remote UE, on the basis of the above embodiment, in the embodiment of the present application, the sending of the monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, includes:

[0078] The monitoring PO request and the set multi-hop paging indication are sent to the upper-level L2 U2N relay UE accordingly, so that the monitoring PO request and the multi-hop paging indication are sent to the L2U2N relay UE directly connected to the base station accordingly.

[0079] In a possible implementation, considering that in a single-hop layer 2 U2N relay scenario, there is only one paged node under the PC5 (Proximity Communication) connection, that is, there is a one-to-one relationship between the L2U2N relay UE directly connected to the base station and the paged node, while in a multi-hop layer 2 U2N relay scenario, there can be multiple paged nodes under the PC5 connection, and the relationship between the L2 U2N relay UE directly connected to the base station and the paged node is no longer a one-to-one relationship, but a one-to-many relationship. Therefore, an identifier that can indicate the final paged node can be added in the monitoring PO request and the paging notification message, etc., to ensure the accuracy of paging the remote UE. Optionally, in order to improve the accuracy of paging for remote UEs, when sending a monitoring PO request to the upper-level L2 U2N relay UE, the L2U2N relay UE may send the monitoring PO request containing (carrying) 5G-S-TMSI and the multi-hop paging indication to the upper-level L2 U2N relay UE accordingly. The upper-level L2 U2N relay UE may send the monitoring PO request containing (carrying) 5G-S-TMSI and the multi-hop paging indication to the upper-level L2 U2N relay UE accordingly..., so that the monitoring PO request and the multi-hop paging indication are sent to the L2 U2N relay UE directly connected to the base station.

[0080] When each L2 U2N relay UE receives a multi-hop paging indication, it can be informed that paging of the remote UE is currently being performed in a multi-hop layer 2 U2N relay scenario, and can carry the 5G-S-TMSI parameter when sending a monitoring PO request or paging notification message to other L2 U2N relay UEs, so that the L2 U2N Remote UE corresponding to the 5G-S-TMSI can accurately receive the paging notification message, thereby ensuring the accuracy of paging of the remote UE to the greatest extent.

[0081] Optionally, after the L2 U2N relay UE directly connected to the base station receives the paging notification message, if it recognizes that the previously received monitoring PO request containing 5G-S-TMSI corresponds to a multi-hop paging indication, it can be considered that the corresponding 5G-S-TMSI parameter needs to be carried in the paging notification message at this time, and a paging notification message containing (carrying) 5G-S-TMSI can be sent to the next level L2 U2N relay UE. It will not be repeated here.

[0082] Embodiment 3:

[0083] In order to improve the accuracy of paging the remote UE, on the basis of the above embodiments, in the embodiment of the present application, after the receiving layer 2 type user equipment sends a monitoring paging occasion PO request to the network remote user equipment L2 U2NRemote UE, the method further includes:

[0084] Identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

[0085] In a possible implementation, after receiving the monitoring PO request sent by the L2 U2N Remote UE, the L2 U2N relay UE can identify the identifier of the connection link (for the convenience of description, referred to as the first connection link) between the L2 U2N relay UE itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI of the L2 U2NRemote UE and the identifier of the first connection link. Exemplarily, the first correspondence can be saved in the PC5 context, and when a paging notification message is subsequently sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, the identifier of the first connection link corresponding to the 5G-S-TMSI carried in the paging notification message can be obtained according to the above-mentioned first correspondence pre-saved in the PC5 context, etc., and then the paging notification message can be sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

[0086] Optionally, for each L2 U2N relay UE, after receiving the monitoring PO request sent by other (next level) L2 U2N relay UE, it can identify the identifier of the connection link between the L2 U2N relay UE itself and the L2 U2N relay UE, and save the correspondence between the 5G-S-TMSI and the identifier of the connection link. Subsequently, when receiving the paging notification message sent by other (upper level) L2U2N relay UE, it can obtain the identifier of the connection link corresponding to the 5G-S-TMSI carried in the paging notification message according to the pre-saved correspondence, and send the paging notification message to other (next level) L2 U2N relay UE or the L2 U2N RemoteUE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the connection link. It will not be repeated here.

[0087] Taking the L2 U2N relay UE directly connected to the base station as an example, after the L2 U2N relay UE directly connected to the base station receives the monitoring PO request sent by the next-level L2 U2N relay UE, it can identify the identifier of the connection link between itself and the next-level L2 U2N relay UE (for the convenience of description, referred to as the second connection link), and save the correspondence between the 5G-S-TMSI contained in the monitoring PO request and the identifier of the second connection link (for the convenience of description, referred to as the second correspondence). Optionally, when a paging notification message containing 5G-S-TMSI is subsequently sent to the next-level L2 U2N relay UE, the L2U2N relay UE directly connected to the base station can obtain the identifier of the second connection link corresponding to the 5G-S-TMSI according to the pre-saved second correspondence, and then send the paging notification message to the next-level L2U2N relay UE through the connection link corresponding to the identifier of the second connection link.

[0088] Embodiment 4:

[0089] In order to ensure the accuracy and security of paging the remote UE, based on the above embodiments, in the embodiment of the present application, the method further includes:

[0090] If it is identified that the connection with the L2 U2N Remote UE is disconnected, the monitoring PO cancellation request containing the 5G-S-TMSI is sent to the upper-level L2 U2N relay UE, so that the monitoring PO cancellation request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2U2N relay UE directly connected to the base station cancels the monitoring of the 5G-S-TMSI.

[0091] In a possible implementation, when the L2 U2N Remote UE actively disconnects from the L2 U2N relay UE, or passively disconnects from the L2 U2N relay UE due to signal or other reasons, the L2 U2N relay UE that was originally directly connected to the L2 U2N Remote UE can recognize that the connection with the L2 U2N Remote UE is disconnected. Upon recognizing that the connection with the L2U2N Remote UE is disconnected, the L2 U2N relay UE can send a monitoring PO cancellation request containing the 5G-S-TMSI of the L2 U2N Remote UE to the upper-level L2 U2N relay UE, so that the monitoring PO cancellation request is sent to the L2U2N relay UE directly connected to the base station, wherein the process of sending the monitoring PO cancellation request to the L2 U2N relay UE directly connected to the base station is similar to the process of sending the monitoring PO request to the L2 U2N relay UE directly connected to the base station. For example, the L2 U2N relayUE can send a monitoring PO cancellation request containing the 5G-S-TMSI of the L2 U2N Remote UE to its upper-level L2 U2N relay UE. If the upper-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the base station, the upper-level L2 U2N relay UE will again send the monitoring PO cancellation request containing the 5G-S-TMSI to its upper-level L2 U2N relay UE. If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending. Optionally, if the upper-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the base station, the upper-level L2 U2N relay UE can again send the monitoring PO cancellation request containing the 5G-S-TMSI to its upper-level L2U2N relay UE. If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending. Optionally, if the upper-level L2 U2N relay UE is still not the L2 U2N relay UE directly connected to the base station, the upper-level L2 U2N relay UE can again send the monitoring PO cancellation request containing 5G-S-TMSI to its upper-level L2 U2N relay U..., and the above sending process can be repeated several times until the monitoring PO cancellation request is sent to the L2 U2N relay UE directly connected to the base station, which will not be repeated here.

[0092] Optionally, when the L2 U2N relay UE directly connected to the base station receives a monitoring PO cancellation request, it can cancel the monitoring of the 5G-S-TMSI.

[0093] Optionally, for each L2 U2N relay UE, after sending a monitoring PO cancellation request containing 5G-S-TMSI to other L2 U2N relay UEs, if a correspondence between the 5G-S-TMSI and the identifier of the connection link has been previously saved, the correspondence can be deleted. Exemplarily, taking the L2 U2N relay UE directly connected to the L2 U2NRemote UE as an example, after the L2 U2Nrelay UE directly connected to the L2 U2N Remote UE sends a monitoring PO cancellation request containing 5G-S-TMSI to other (upper level) L2 U2Nrelay UEs, the first correspondence between the 5G-S-TMSI and the identifier of the first connection link that was previously saved can be deleted.

[0094] Optionally, taking the L2 U2N relay UE directly connected to the base station as an example, after the L2 U2N relay UE directly connected to the base station receives a monitoring PO cancellation request containing a 5G-S-TMSI, the second correspondence between the 5G-S-TMSI and the identifier of the second connection link that was previously saved can be deleted, which is not repeated here.

[0095] For ease of understanding, the paging notification process provided by the present application is explained below through a specific embodiment. Figure 2 , Figure 2 A schematic diagram of a second paging notification process provided in some embodiments of the present application is shown, and the process includes the following steps:

[0096] S201: The L2 U2N Remote UE sends a monitoring PO request to the L2 U2N relay UE directly connected to the L2 U2N Remote UE. The monitoring PO request carries the 5G-S-TMSI of the L2 U2N Remote UE.

[0097] S202: After receiving the monitoring PO request, the L2 U2N relay UE directly connected to the L2 U2N Remote UE will correspond the monitoring PO request including the 5G-S-TMSI and the set multi-hop paging indication to the upper-level L2 U2N relay UE, identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

[0098] S203: The upper-level L2 U2N relay UE of the L2 U2N relay UE directly connected to the L2 U2N Remote UE is the L2 U2N relay UE directly connected to the base station. The L2 U2N relay UE directly connected to the base station receives the monitoring PO request and multi-hop paging indication sent by the lower-level L2 U2N relay UE (L2 U2N relay UE directly connected to the L2 U2N Remote UE), and monitors the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request. In addition, the identifier of the second connection link between itself and the lower-level L2 U2N relay UE can also be identified, and the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link can be saved.

[0099] S204: The base station (gNB) initiates paging to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, and the paging channel (paging notification message) contains (carries) the 5G-S-TMSI.

[0100] S205: The L2 U2N relay UE directly connected to the base station receives a paging notification message, obtains the identifier of the second connection link corresponding to the 5G-S-TMSI according to the pre-saved second correspondence, and sends the paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE through the connection link corresponding to the identifier of the second connection link.

[0101] S206: The next-level L2 U2N relay UE of the L2 U2N relay UE directly connected to the base station is the L2 U2N relay UE directly connected to the L2 U2NRemote UE. The L2 U2Nrelay UE directly connected to the L2 U2N Remote UE obtains the identifier of the first connection link corresponding to the 5G-S-TMSI according to the pre-stored first correspondence, and sends the paging notification message to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

[0102] For ease of understanding, the paging notification process provided by the present application is explained below through a specific embodiment. Figure 3 , Figure 3 A schematic diagram of a third paging notification process provided in some embodiments of the present application is shown, and the process includes the following steps:

[0103] S301: If the L2 U2N relay UE directly connected to the L2 U2N Remote UE identifies that the connection with the L2 U2NRemote UE is disconnected, it sends a monitoring PO cancellation request containing the 5G-S-TMSI to the upper-level L2 U2N relay UE, and deletes the first correspondence between the 5G-S-TMSI and the identifier of the first connection link when saving the first correspondence.

[0104] S302: The upper-level L2 U2N relay UE of the L2 U2N relay UE directly connected to the L2 U2N Remote UE is the L2 U2N relay UE directly connected to the base station. When the L2 U2N relay UE directly connected to the base station receives the monitoring PO cancellation request sent by the lower-level L2 U2N relay UE (the L2 U2N relay UE directly connected to the L2 U2N Remote UE), it cancels the monitoring of the 5G-S-TMSI and deletes the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link when the second corresponding relationship is saved.

[0105] For ease of understanding, the paging notification process provided by the present application is explained below through a specific embodiment. Figure 4 , Figure 4 A schematic diagram of a fourth paging notification process provided by some embodiments of the present application is shown, and the process includes the following steps:

[0106] The L2 U2N Remote UE sends a monitoring PO request to the L2 U2N relay UE (referred to as L2 U2N relay UE 1 for the convenience of description) directly connected to the L2 U2N Remote UE. The monitoring PO request carries the 5G-S-TMSI of the L2 U2N Remote UE.

[0107] After receiving the monitoring PO request, L2 U2N relay UE 1 will correspond the monitoring PO request including 5G-S-TMSI and the set multi-hop paging indication to the upper-level L2 U2N relay UE (for the convenience of description, referred to as L2 U2N relayUE 2), identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

[0108] After receiving the monitoring PO request, L2 U2N relay UE 2 will correspond the monitoring PO request including 5G-S-TMSI and the set multi-hop paging indication to the next higher level L2 U2N relay UE, identify the identifier of the connection link between itself and L2 U2N relay UE1, and save the correspondence between 5G-S-TMSI and the identifier of the connection link.

[0109] The upper level L2 U2N relay UE of L2 U2N relay UE 2 is the L2 U2N relayUE directly connected to the base station. The L2 U2N relay UE directly connected to the base station receives the monitoring PO request and multi-hop paging indication sent by the lower level L2 U2N relay UE (L2U2N relay UE 2), and monitors the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request. In addition, it can also identify the identifier of the second connection link between itself and L2 U2N relay UE 2, and save the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link.

[0110] If the base station initiates paging to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, the paging notification message includes the 5G-S-TMSI, and the L2 U2N relay UE directly connected to the base station receives the paging notification message, obtains the identifier of the second connection link corresponding to the 5G-S-TMSI according to the pre-saved second correspondence, and sends the paging notification message including the 5G-S-TMSI to the L2 U2N relay UE 2 through the connection link corresponding to the identifier of the second connection link.

[0111] L2 U2N relay UE 2 receives the paging notification message, obtains the identifier of the connection link corresponding to the 5G-S-TMSI according to the pre-saved correspondence between the above-mentioned 5G-S-TMSI and the identifier of the connection link, and sends the paging notification message containing the 5G-S-TMSI to L2 U2N relay UE 1 through the connection link corresponding to the identifier of the corresponding connection link.

[0112] L2 U2N relay UE 1 receives the paging notification message, obtains the identifier of the first connection link corresponding to the 5G-S-TMSI according to the above-mentioned first correspondence relationship saved in advance, and sends the paging notification message to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

[0113] For ease of understanding, the paging notification process provided by this application is explained below through a specific embodiment. Figure 5 , Figure 5 A fifth paging notification process schematic diagram provided in some embodiments of the present application is shown, and the process includes the following steps:

[0114] S501: If the L2 U2N relay UE 1 directly connected to the L2 U2N Remote UE identifies that the connection with the L2 U2NRemoteUE is disconnected, it sends a monitoring PO cancellation request containing 5G-S-TMSI to the upper-level L2 U2N relay UE, i.e., L2U2N relay UE 2, and deletes the first correspondence between the 5G-S-TMSI and the identifier of the first connection link when saving the first correspondence.

[0115] S502: L2 U2N relay UE 2 sends a monitoring PO cancellation request including 5G-S-TMSI to the upper-level L2U2N relay UE, and deletes the corresponding relationship between the 5G-S-TMSI and the identifier of the connection link when the corresponding relationship is saved.

[0116] S503: The upper-level L2 U2N relay UE of L2 U2N relay UE 2 is the L2U2N relay UE directly connected to the base station. When the L2 U2N relay UE directly connected to the base station receives the monitoring PO cancellation request sent by L2 U2N relay UE 2, it cancels the monitoring of 5G-S-TMSI, and when the second correspondence between the 5G-S-TMSI and the identifier of the second connection link is saved, the second correspondence is deleted.

[0117] Embodiment 5:

[0118] Based on the same technical concept, the present application also provides a paging notification method, which is applied to an L2 U2N relay UE directly connected to a base station. Figure 6 , Figure 6 A sixth paging notification process schematic diagram provided in some embodiments of the present application is shown, and the process includes the following steps:

[0119] S601: If the L2 U2N relay UE directly connected to the base station receives a monitoring PO request sent by the next-level L2 U2N relay UE, it monitors the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request.

[0120] S602: Receive a paging notification message, where the paging notification message includes the 5G-S-TMSI.

[0121] S603: Send a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2N Remote UE.

[0122] In a possible implementation manner, the sending of the paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2N Remote UE, includes:

[0123] Sending a paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE;

[0124] If the next-level L2 U2N relay UE is the L2U2N relay UE directly connected to the L2 U2N Remote UE, the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE; otherwise, the next-level L2 U2N relay UE sends the paging notification message again to the next-level L2 U2N relay UE, until the paging notification message is sent to the L2 U2N relay UE directly connected to the L2 U2N Remote UE, so that the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE.

[0125] In a possible implementation manner, after receiving a monitoring PO request sent by a next-level L2 U2N relay UE, the method further includes:

[0126] Identify the identifier of the second connection link between itself and the next-level L2 U2N relay UE, and save the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link.

[0127] In a possible implementation manner, the sending the paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE includes:

[0128] Obtaining, according to the pre-saved second corresponding relationship, an identifier of the second connection link corresponding to the 5G-S-TMSI;

[0129] The paging notification message is sent to the next-level L2 U2N relay UE through the connection link corresponding to the identifier of the second connection link.

[0130] In a possible implementation manner, after receiving the paging notification message and before sending the paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE, the method further includes:

[0131] If it is identified that the monitoring PO request corresponds to a multi-hop paging indication, a subsequent step of sending a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE is performed.

[0132] In a possible implementation manner, after receiving the monitoring PO request sent by the next-level L2 U2N relay UE, and before monitoring the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request, the method further includes:

[0133] If it is recognized that it is currently in an idle state, the subsequent step of monitoring the PO corresponding to the 5G-S-TMSI is performed.

[0134] In a possible implementation, the method further includes:

[0135] If a monitoring PO cancellation request containing the 5G-S-TMSI is received from the next-level L2 U2N relay UE, the monitoring of the 5G-S-TMSI is canceled.

[0136] In a possible implementation, the method further includes:

[0137] If a second correspondence between the 5G-S-TMSI and the identifier of the second connection link is saved, the second correspondence will be deleted.

[0138] Embodiment 6:

[0139] Based on the same technical concept, the present application provides a paging notification device, see Figure 7 , Figure 7 A schematic diagram of a paging notification device provided in some embodiments of the present application is shown, and the device includes:

[0140] The first receiving module 71 is used to receive a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2U2N RemoteUE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE;

[0141] The first sending module 72 is used to send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

[0142] In a possible implementation manner, the first sending module 72 is specifically configured to:

[0143] Sending the monitoring PO request to the upper level L2 U2N relay UE;

[0144] If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending; otherwise, make the upper-level L2 U2N relay UE send the monitoring PO request again to the next upper-level relayUE until the monitoring PO request is sent to the L2U2N relay UE directly connected to the base station.

[0145] In a possible implementation manner, the first sending module 72 is specifically configured to:

[0146] The monitoring PO request and the set multi-hop paging indication are sent to the upper-level L2 U2N relay UE accordingly, so that the monitoring PO request and the multi-hop paging indication are sent to the L2U2N relay UE directly connected to the base station accordingly.

[0147] In a possible implementation manner, the first sending module 72 is further configured to:

[0148] If a paging notification message containing the 5G-S-TMSI is received from the upper-level L2 U2N relay UE, the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, so that the L2 U2N Remote UE responds to the paging notification message.

[0149] In a possible implementation manner, the first sending module 72 is further configured to:

[0150] Identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

[0151] In a possible implementation manner, the first sending module 72 is specifically configured to:

[0152] Obtaining, according to the first corresponding relationship saved in advance, an identifier of the first connection link corresponding to the 5G-S-TMSI;

[0153] The paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

[0154] In a possible implementation manner, the first sending module 72 is further configured to:

[0155] If it is identified that the connection with the L2 U2N Remote UE is disconnected, the monitoring PO cancellation request containing the 5G-S-TMSI is sent to the upper-level L2 U2N relay UE, so that the monitoring PO cancellation request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2U2N relay UE directly connected to the base station cancels the monitoring of the 5G-S-TMSI.

[0156] In a possible implementation, the device further includes:

[0157] The first deletion module is used to delete the first correspondence between the 5G-S-TMSI and the identifier of the first connection link if the first correspondence is saved.

[0158] Embodiment 7:

[0159] Based on the same technical concept, the present application provides a paging notification device, see Figure 8 , Figure 8 A schematic diagram of another paging notification device provided in some embodiments of the present application is shown, the device comprising:

[0160] The second receiving module 81 is used to monitor the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request if a monitoring PO request sent by the next-level L2 U2N relay UE is received;

[0161] The second receiving module 81 is further configured to receive a paging notification message, wherein the paging notification message includes the 5G-S-TMSI;

[0162] The second sending module 82 is used to send a paging notification message containing the 5G-S-TMSI to the next-level L2U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2N Remote UE.

[0163] In a possible implementation manner, the second sending module 82 is specifically configured to:

[0164] Sending a paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE;

[0165] If the next-level L2 U2N relay UE is the L2U2N relay UE directly connected to the L2 U2N Remote UE, the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE; otherwise, the next-level L2 U2N relay UE sends the paging notification message again to the next-level L2 U2N relay UE, until the paging notification message is sent to the L2 U2N relay UE directly connected to the L2 U2N Remote UE, so that the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE.

[0166] In a possible implementation manner, the second sending module 82 is further configured to:

[0167] Identify the identifier of the second connection link between itself and the next-level L2 U2N relay UE, and save the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link.

[0168] In a possible implementation manner, the second sending module 82 is specifically configured to:

[0169] Obtaining, according to the pre-saved second corresponding relationship, an identifier of the second connection link corresponding to the 5G-S-TMSI;

[0170] The paging notification message is sent to the next-level L2 U2N relay UE through the connection link corresponding to the identifier of the second connection link.

[0171] In a possible implementation manner, the second sending module 82 is further configured to:

[0172] If it is identified that the monitoring PO request corresponds to a multi-hop paging indication, a subsequent step of sending a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE is performed.

[0173] In a possible implementation manner, the second sending module 82 is further configured to:

[0174] If it is recognized that it is currently in an idle state, the subsequent step of monitoring the PO corresponding to the 5G-S-TMSI is performed.

[0175] In a possible implementation manner, the second sending module 82 is further configured to:

[0176] If a monitoring PO cancellation request containing the 5G-S-TMSI is received from the next-level L2 U2N relay UE, the monitoring of the 5G-S-TMSI is canceled.

[0177] In a possible implementation, the device further includes:

[0178] The second deletion module is used to delete the second correspondence between the 5G-S-TMSI and the identifier of the second connection link if the second correspondence is saved.

[0179] Embodiment 8:

[0180] Based on the same technical concept, the present application also provides a paging notification system. Fig. 9 , Fig. 9 A schematic diagram of a paging notification system provided in some embodiments of the present application is shown, and the system includes:

[0181] A layer 2 type user equipment to a network remote user equipment L2 U2N Remote UE 91 is used to send a monitoring paging occasion PO request to a layer 2 type user equipment to a network relay user equipment L2 U2N relay UE 92, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE;

[0182] The L2 U2N relay UE 92 is used to send a monitoring PO request including the 5G-S-TMSI to the upper-level L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE 93 directly connected to the base station;

[0183] The L2 U2N relay UE 93 directly connected to the base station is used to monitor the PO corresponding to the 5G-S-TMSI;

[0184] The L2 U2N relay UE 93 directly connected to the base station is also used to receive a paging notification message, which includes the 5G-S-TMSI; and send a paging notification message including the 5G-S-TMSI to the next-level L2U2N relay UE, so that the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI.

[0185] Embodiment 9:

[0186] Based on the same technical concept, the present application also provides an electronic device, Fig.10 A schematic diagram of the structure of an electronic device provided by some embodiments of the present application is shown. Fig.10 As shown, the electronic device includes: a processor 1001, a communication interface 1002, a memory 1003 and a communication bus 1004, wherein the processor 1001, the communication interface 1002, and the memory 1003 communicate with each other through the communication bus 1004;

[0187] The memory 1003 stores a computer program. When the program is executed by the processor 1001, the processor 1001 performs the following steps:

[0188] receiving a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2 U2N Remote UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE;

[0189] Send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

[0190] In a possible implementation manner, the processor 1001 is specifically configured to:

[0191] Sending the monitoring PO request to the upper level L2 U2N relay UE;

[0192] If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending; otherwise, make the upper-level L2 U2N relay UE send the monitoring PO request again to the next upper-level relayUE until the monitoring PO request is sent to the L2U2N relay UE directly connected to the base station.

[0193] In a possible implementation manner, the processor 1001 is specifically configured to:

[0194] The monitoring PO request and the set multi-hop paging indication are sent to the upper-level L2 U2N relay UE accordingly, so that the monitoring PO request and the multi-hop paging indication are sent to the L2U2N relay UE directly connected to the base station accordingly.

[0195] In a possible implementation manner, the processor 1001 is further configured to:

[0196] If a paging notification message containing the 5G-S-TMSI is received from the upper-level L2 U2N relay UE, the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, so that the L2 U2N Remote UE responds to the paging notification message.

[0197] In a possible implementation manner, the processor 1001 is further configured to:

[0198] Identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

[0199] In a possible implementation manner, the processor 1001 is specifically configured to:

[0200] Obtaining, according to the first corresponding relationship saved in advance, an identifier of the first connection link corresponding to the 5G-S-TMSI;

[0201] The paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

[0202] In a possible implementation manner, the processor 1001 is further configured to:

[0203] If it is identified that the connection with the L2 U2N Remote UE is disconnected, the monitoring PO cancellation request containing the 5G-S-TMSI is sent to the upper-level L2 U2N relay UE, so that the monitoring PO cancellation request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2U2N relay UE directly connected to the base station cancels the monitoring of the 5G-S-TMSI.

[0204] In a possible implementation manner, the processor 1001 is further configured to:

[0205] If a first correspondence between the 5G-S-TMSI and the identifier of the first connection link is saved, the first correspondence is deleted.

[0206] In addition, in a possible implementation manner, a computer program is stored in the memory 1003. When the program is executed by the processor 1001, the processor 1001 may further perform the following steps:

[0207] If a monitoring PO request is received from the next-level L2 U2N relay UE, the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request is monitored;

[0208] receiving a paging notification message, where the paging notification message includes the 5G-S-TMSI;

[0209] Send a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2U2N Remote UE.

[0210] In a possible implementation manner, the processor 1001 is specifically configured to:

[0211] Sending a paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE;

[0212] If the next-level L2 U2N relay UE is the L2U2N relay UE directly connected to the L2 U2N Remote UE, the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE; otherwise, the next-level L2 U2N relay UE sends the paging notification message again to the next-level L2 U2N relay UE, until the paging notification message is sent to the L2 U2N relay UE directly connected to the L2 U2N Remote UE, so that the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE.

[0213] In a possible implementation manner, the processor 1001 is further configured to:

[0214] Identify the identifier of the second connection link between itself and the next-level L2 U2N relay UE, and save the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link.

[0215] In a possible implementation manner, the processor 1001 is specifically configured to:

[0216] Obtaining, according to the pre-saved second corresponding relationship, an identifier of the second connection link corresponding to the 5G-S-TMSI;

[0217] The paging notification message is sent to the next-level L2 U2N relay UE through the connection link corresponding to the identifier of the second connection link.

[0218] In a possible implementation manner, the processor 1001 is further configured to:

[0219] If it is identified that the monitoring PO request corresponds to a multi-hop paging indication, a subsequent step of sending a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE is performed.

[0220] In a possible implementation manner, the processor 1001 is further configured to:

[0221] If it is recognized that it is currently in an idle state, the subsequent step of monitoring the PO corresponding to the 5G-S-TMSI is performed.

[0222] In a possible implementation manner, the processor 1001 is further configured to:

[0223] If a monitoring PO cancellation request containing the 5G-S-TMSI is received from the next-level L2 U2N relay UE, the monitoring of the 5G-S-TMSI is canceled.

[0224] In a possible implementation manner, the processor 1001 is further configured to:

[0225] If a second correspondence between the 5G-S-TMSI and the identifier of the second connection link is saved, the second correspondence will be deleted.

[0226] The communication bus mentioned in the above electronic device can be a Peripheral Component Interconnect (PCI) bus or an Extended Industry Standard Architecture (EISA) bus, etc. The communication bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, only one thick line is used in the figure, but it does not mean that there is only one bus or one type of bus.

[0227] The communication interface 1002 is used for communication between the above electronic device and other devices.

[0228] The memory may include a random access memory (RAM) or a non-volatile memory (NVM), such as at least one disk memory. Optionally, the memory may also be at least one storage device located away from the aforementioned processor.

[0229] The above-mentioned processor can be a general-purpose processor, including a central processing unit, a network processor (Network Processor, NP), etc.; it can also be a digital signal processing processor (Digital Signal Processing, DSP), an application-specific integrated circuit, a field programmable gate array or other programmable logic device, a discrete gate or transistor logic device, a discrete hardware component, etc.

[0230] Embodiment 10:

[0231] Based on the same technical concept, an embodiment of the present application provides a computer-readable storage medium, wherein the computer-readable storage medium stores a computer program executable by an electronic device. When the program runs on the electronic device, the electronic device implements the following steps when executing:

[0232] receiving a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2 U2N Remote UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE;

[0233] Send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

[0234] In a possible implementation manner, the sending of the monitoring PO request including the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, includes:

[0235] Sending the monitoring PO request to the upper level L2 U2N relay UE;

[0236] If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending; otherwise, make the upper-level L2 U2N relay UE send the monitoring PO request again to the next upper-level relayUE until the monitoring PO request is sent to the L2U2N relay UE directly connected to the base station.

[0237] In a possible implementation manner, the sending of the monitoring PO request including the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, includes:

[0238] The monitoring PO request and the set multi-hop paging indication are sent to the upper-level L2 U2N relay UE accordingly, so that the monitoring PO request and the multi-hop paging indication are sent to the L2U2N relay UE directly connected to the base station accordingly.

[0239] In a possible implementation, the method further includes:

[0240] If a paging notification message containing the 5G-S-TMSI is received from the upper-level L2 U2N relay UE, the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, so that the L2 U2N Remote UE responds to the paging notification message.

[0241] In a possible implementation manner, after receiving the monitoring paging occasion PO request sent by the layer 2 type user equipment to the network remote user equipment L2U2N Remote UE, the method further includes:

[0242] Identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

[0243] In a possible implementation manner, sending the paging notification message to the L2 U2N Remote UE corresponding to the 5G-S-TMSI includes:

[0244] Obtaining, according to the first corresponding relationship saved in advance, an identifier of the first connection link corresponding to the 5G-S-TMSI;

[0245] The paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

[0246] In a possible implementation, the method further includes:

[0247] If it is identified that the connection with the L2 U2N Remote UE is disconnected, the monitoring PO cancellation request containing the 5G-S-TMSI is sent to the upper-level L2 U2N relay UE, so that the monitoring PO cancellation request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2U2N relay UE directly connected to the base station cancels the monitoring of the 5G-S-TMSI.

[0248] In a possible implementation, the method further includes:

[0249] If a first correspondence between the 5G-S-TMSI and the identifier of the first connection link is saved, the first correspondence is deleted.

[0250] In addition, in a possible implementation manner, the computer-readable storage medium stores a computer program executable by an electronic device, and when the program is run on the electronic device, the electronic device implements the following steps when executing:

[0251] If a monitoring PO request is received from the next-level L2 U2N relay UE, the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request is monitored;

[0252] receiving a paging notification message, where the paging notification message includes the 5G-S-TMSI;

[0253] Send a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2U2N Remote UE.

[0254] In a possible implementation manner, the sending of the paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2N Remote UE, includes:

[0255] Sending a paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE;

[0256] If the next-level L2 U2N relay UE is the L2U2N relay UE directly connected to the L2 U2N Remote UE, the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE; otherwise, the next-level L2 U2N relay UE sends the paging notification message again to the next-level L2 U2N relay UE, until the paging notification message is sent to the L2 U2N relay UE directly connected to the L2 U2N Remote UE, so that the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE.

[0257] In a possible implementation manner, after receiving a monitoring PO request sent by a next-level L2 U2N relay UE, the method further includes:

[0258] Identify the identifier of the second connection link between itself and the next-level L2 U2N relay UE, and save the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link.

[0259] In a possible implementation manner, the sending the paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE includes:

[0260] Obtaining, according to the pre-saved second corresponding relationship, an identifier of the second connection link corresponding to the 5G-S-TMSI;

[0261] The paging notification message is sent to the next-level L2 U2N relay UE through the connection link corresponding to the identifier of the second connection link.

[0262] In a possible implementation manner, after receiving the paging notification message and before sending the paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE, the method further includes:

[0263] If it is identified that the monitoring PO request corresponds to a multi-hop paging indication, a subsequent step of sending a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE is performed.

[0264] In a possible implementation manner, after receiving the monitoring PO request sent by the next-level L2 U2N relay UE, and before monitoring the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request, the method further includes:

[0265] If it is recognized that it is currently in an idle state, the subsequent step of monitoring the PO corresponding to the 5G-S-TMSI is performed.

[0266] In a possible implementation, the method further includes:

[0267] If a monitoring PO cancellation request containing the 5G-S-TMSI is received from the next-level L2 U2N relay UE, the monitoring of the 5G-S-TMSI is canceled.

[0268] In a possible implementation, the method further includes:

[0269] If a second correspondence between the 5G-S-TMSI and the identifier of the second connection link is saved, the second correspondence will be deleted.

[0270] The above-mentioned computer-readable storage medium can be any available medium or data storage device that can be accessed by the processor in the electronic device, including but not limited to magnetic storage such as floppy disks, hard disks, magnetic tapes, magneto-optical disks (MO), etc., optical storage such as CD, DVD, BD, HVD, etc., and semiconductor storage such as ROM, EPROM, EEPROM, non-volatile memory (NANDFLASH), solid-state drive (SSD), etc.

[0271] Based on the same technical concept, the present application provides a computer program product, which includes: computer program code, when the computer program code runs on a computer, the computer implements the method described in any method embodiment applied to an electronic device when executing the computer, which will not be repeated here.

[0272] In the above embodiments, all or part of the embodiments may be implemented by software, hardware, firmware or any combination thereof, and all or part of the embodiments may be implemented in the form of a computer program product. The computer program product includes one or more computer instructions, and when the computer instructions are loaded and executed on a computer, all or part of the processes or functions described in the embodiments of the present application are generated.

[0273] Those skilled in the art will appreciate that the embodiments of the present application may be provided as methods, systems, or computer program products. Therefore, the present application may adopt the form of a complete hardware embodiment, a complete software embodiment, or an embodiment in combination with software and hardware. Moreover, the present application may adopt the form of a computer program product implemented in one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) that include computer-usable program code.

[0274] The present application is described with reference to the flowcharts and / or block diagrams of the methods, devices (systems), and computer program products according to the present application. 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 produce 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.

[0275] 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.

[0276] 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.

[0277] Obviously, those skilled in the art can make various changes and modifications to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

Claims

1. A paging notification method, characterized in that: The method comprises: receiving a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2 U2N Remote UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE; Send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

2. The method according to claim 1, characterized in that The sending of the monitoring PO request including the 5G-S-TMSI to the upper level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, includes: Sending the monitoring PO request to the upper level L2 U2N relay UE; If the upper-level L2 U2N relay UE is the L2 U2N relay UE directly connected to the base station, stop sending; otherwise, make the upper-level L2 U2N relay UE send the monitoring PO request again to the next upper-level relay UE until the monitoring PO request is sent to the L2U2N relay UE directly connected to the base station.

3. The method according to claim 1 or 2, characterized in that: The sending of the monitoring PO request including the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station, includes: The monitoring PO request and the set multi-hop paging indication are sent to the upper-level L2 U2N relay UE accordingly, so that the monitoring PO request and the multi-hop paging indication are sent to the L2U2N relay UE directly connected to the base station accordingly.

4. The method according to claim 1, characterized in that: The method further comprises: If a paging notification message containing the 5G-S-TMSI is received from the upper-level L2 U2N relay UE, the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI, so that the L2 U2N Remote UE responds to the paging notification message.

5. The method according to claim 1 or 4, characterized in that: After receiving the monitoring paging occasion PO request sent by the layer 2 type user equipment to the network remote user equipment L2 U2N Remote UE, the method further includes: Identify the identifier of the first connection link between itself and the L2 U2N Remote UE, and save the first correspondence between the 5G-S-TMSI and the identifier of the first connection link.

6. The method according to claim 5, characterized in that The sending the paging notification message to the L2 U2N Remote UE corresponding to the 5G-S-TMSI includes: Obtaining, according to the first corresponding relationship saved in advance, an identifier of the first connection link corresponding to the 5G-S-TMSI; The paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI through the connection link corresponding to the identifier of the first connection link.

7. The method according to claim 1, 2, 4 or 6, characterized in that: The method further comprises: If it is identified that the connection with the L2 U2N Remote UE is disconnected, the monitoring PO cancellation request containing the 5G-S-TMSI is sent to the upper-level L2 U2N relay UE, so that the monitoring PO cancellation request is sent to the L2 U2N relay UE directly connected to the base station, so that the L2U2N relay UE directly connected to the base station cancels the monitoring of the 5G-S-TMSI.

8. The method according to claim 7, characterized in that The method further comprises: If a first correspondence between the 5G-S-TMSI and the identifier of the first connection link is saved, the first correspondence is deleted.

9. A paging notification method, characterized in that: The method comprises: If a monitoring PO request is received from the next-level L2 U2N relay UE, the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request is monitored; receiving a paging notification message, where the paging notification message includes the 5G-S-TMSI; Send a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2NRemote UE.

10. The method according to claim 9, characterized in that The sending of the paging notification message including the 5G-S-TMSI to the next level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2N Remote UE, includes: Sending a paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE; If the next-level L2 U2N relay UE is the L2U2N relay UE directly connected to the L2 U2N Remote UE, the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2U2N Remote UE; otherwise, the next-level L2 U2N relay UE sends the paging notification message again to the next-level L2 U2N relay UE, until the paging notification message is sent to the L2 U2N relay UE directly connected to the L2 U2N Remote UE, so that the L2 U2N relay UE directly connected to the L2 U2N Remote UE sends the paging notification message to the L2 U2N Remote UE.

11. The method according to claim 9 or 10, characterized in that: After receiving the monitoring PO request sent by the next-level L2 U2N relay UE, the method further includes: Identify the identifier of the second connection link between itself and the next-level L2 U2N relay UE, and save the second corresponding relationship between the 5G-S-TMSI and the identifier of the second connection link.

12. The method according to claim 11, characterized in that The sending of the paging notification message including the 5G-S-TMSI to the next-level L2 U2N relay UE includes: Obtaining, according to the pre-saved second corresponding relationship, an identifier of the second connection link corresponding to the 5G-S-TMSI; The paging notification message is sent to the next-level L2 U2N relay UE through the connection link corresponding to the identifier of the second connection link.

13. The method according to claim 9 or 10, characterized in that: After receiving the paging notification message and before sending the paging notification message including the 5G-S-TMSI to the next-level L2U2N relay UE, the method further includes: If it is identified that the monitoring PO request corresponds to a multi-hop paging indication, a subsequent step of sending a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE is performed.

14. The method according to claim 9 or 10, characterized in that After receiving the monitoring PO request sent by the next-level L2 U2N relay UE, and before monitoring the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request, the method further includes: If it is recognized that it is currently in an idle state, the subsequent step of monitoring the PO corresponding to the 5G-S-TMSI is performed.

15. The method according to claim 9 or 10, characterized in that The method further comprises: If a monitoring PO cancellation request containing the 5G-S-TMSI is received from the next-level L2 U2N relay UE, the monitoring of the 5G-S-TMSI is canceled.

16. The method according to claim 15, characterized in that The method further comprises: If a second correspondence between the 5G-S-TMSI and the identifier of the second connection link is saved, the second correspondence will be deleted.

17. A paging notification device, characterized in that: The device comprises: A first receiving module is used to receive a monitoring paging occasion PO request sent by a layer 2 type user equipment to a network remote user equipment L2 U2NRemote UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2NRemote UE; The first sending module is used to send a monitoring PO request containing the 5G-S-TMSI to the upper-level layer 2 type user equipment to the network relay user equipment L2 U2N relay UE, so that the monitoring PO request is sent to the L2U2N relay UE directly connected to the base station, so that the L2 U2N relay UE directly connected to the base station monitors the PO corresponding to the 5G-S-TMSI.

18. A paging notification device, characterized in that: The device comprises: The second receiving module is used to monitor the PO corresponding to the 5G-S-TMSI contained in the monitoring PO request if a monitoring PO request sent by the next-level L2 U2N relay UE is received; The second receiving module is further used to receive a paging notification message, where the paging notification message includes the 5G-S-TMSI; The second sending module is used to send a paging notification message containing the 5G-S-TMSI to the next-level L2 U2N relay UE, so that the paging notification message is sent to the layer 2 type user equipment corresponding to the 5G-S-TMSI to the network remote user equipment L2 U2N Remote UE.

19. A paging notification system, characterized in that: The system comprises: A layer 2 user equipment to a network remote user equipment L2 U2N Remote UE, used to send a monitoring paging occasion PO request to a layer 2 user equipment to a network relay user equipment L2 U2N relay UE, wherein the monitoring PO request includes a temporary mobile subscription identifier 5G-S-TMSI of the L2 U2N Remote UE; The L2 U2N relay UE is used to send a monitoring PO request including the 5G-S-TMSI to an upper-level L2 U2N relay UE, so that the monitoring PO request is sent to the L2 U2N relay UE directly connected to the base station; The L2 U2N relay UE directly connected to the base station is used to monitor the PO corresponding to the 5G-S-TMSI; The L2 U2N relay UE directly connected to the base station is also used to receive a paging notification message, which includes the 5G-S-TMSI; send a paging notification message including the 5G-S-TMSI to the next-level L2 U2N relayUE, so that the paging notification message is sent to the L2 U2N Remote UE corresponding to the 5G-S-TMSI.

20. An electronic device, characterized in that: The electronic device comprises at least a processor and a memory, and the processor is configured to implement the steps of the method according to any one of claims 1 to 16 when executing a computer program stored in the memory.

21. A computer-readable storage medium, characterized in that: The device stores a computer program, which implements the steps of the method according to any one of claims 1 to 16 when executed by a processor.

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