Method for applying black and white lists in backpack base station, backpack base station and communication system

Abstract

The present application provides a method for applying a blacklist and whitelist under a backpack base station, a backpack base station and a communication system, and relates to the field of communication technology. The method for applying a blacklist and whitelist under a backpack base station includes: the backpack base station receives a connection establishment request sent by a first UE, and the connection establishment request includes the first identification information and the connection reason of the first UE; the backpack base station queries in a target blacklist and whitelist based on the first identification information and the connection reason of the first UE, and obtains a first query result corresponding to the first UE; the backpack base station determines whether to allow the first UE to establish a connection with the backpack base station based on the first query result. The present application manages UEs requesting to establish a connection with a backpack base station by using a target blacklist and whitelist, restricts unnecessary or not allowed UEs from establishing a connection with the backpack base station, reduces unnecessary network load on the backpack base station, avoids transmission delays and packet loss, and ensures the communication quality of UEs connected to the backpack base station.

Description

Technical Field

[0001] The present application relates to the field of communication technology, and in particular to a method for applying a blacklist and whitelist in a backpack base station, a backpack base station and a communication system. Background Art

[0002] In existing cellular communication systems, user equipment (UE) is connected to the base station through a wireless interface, and the base station is connected to the core network through optical fiber. Compared with the wireless interface, the transmission of the optical fiber interface is very reliable and has a huge transmission capacity. Therefore, the optimization of existing cellular communication systems is mainly focused on the wireless interface. However, in the event of natural disasters such as earthquakes and floods, the optical fiber interface is easily damaged, resulting in temporary communication islands, which prevent the UE from communicating normally. Alternatively, in temporary communication islands naturally formed in deserts and oceans, there will be multiple UEs with communication needs in a small area for a short period of time. Under such conditions, it is difficult to lay optical fibers and the economic efficiency is poor.

[0003] In order to solve this problem, backpack base stations came into being. Backpack base stations are connected to satellites through wireless interfaces, and then connected to the core network elements on the ground by satellites, so that UEs within the coverage of backpack base stations can communicate normally. However, in related technologies, since backpack base stations are connected to the core network through satellites, the data transmission rate of satellites is limited. Therefore, the data transmission rate that backpack base stations can provide to UEs is limited, which in turn leads to a low transmission rate between backpack base stations and the core network.

[0004] When multiple UEs perform voice transmission, data transmission and other services through backpack base stations at the same time, it is easy to reach the transmission rate limit between the backpack base station and the core network, resulting in communication congestion, transmission delays, packet loss, etc., affecting the communication quality of user equipment when communicating through the backpack base station. Summary of the invention

[0005] The present application provides a method for applying a blacklist and whitelist under a backpack base station, a backpack base station and a communication system to solve the problems in the prior art of low communication quality and easy occurrence of communication congestion when a user device communicates via a backpack base station.

[0006] In a first aspect, the present application provides a method for applying a blacklist and whitelist in a backpack base station, comprising:

[0007] receiving a connection establishment request sent by a first UE, the connection establishment request being used to request to establish a connection with a backpack base station; wherein the connection establishment request includes first identification information of the first UE and a connection reason; the connection reason is used to indicate a target service requested by the first UE;

[0008] Based on the first identification information of the first UE and the connection reason of the first UE, a query is performed in the target black and white list to obtain a first query result; wherein the target black and white list includes a target black list and / or a target white list, the target black list includes the identification information of at least one second UE and the service corresponding to each of the second UEs, and when the second UE requests the corresponding service, the second UE is not allowed to establish a connection with the backpack base station; the target white list includes the identification information of at least one third UE and the service corresponding to each of the third UEs, and when the third UE requests the corresponding service, the third UE is allowed to establish a connection with the backpack base station;

[0009] Based on the first query result, determine whether to allow the first UE to establish a connection with the backpack base station.

[0010] In a possible design, before receiving the connection establishment request sent by the first user equipment UE, the method further includes:

[0011] Obtain the target blacklist and whitelist.

[0012] In a possible design, obtaining the target blacklist and whitelist includes:

[0013] In response to a first input operation of the user, the target black and white list is obtained; wherein the first input operation carries the target black and white list; the identification information of the second UE in the target black list is the number of the user identification SIM card used by the second UE, and the identification information of the third UE in the target white list is the number of the SIM card used by the third UE;

[0014] The querying in the target blacklist and whitelist based on the first identification information of the first UE and the connection reason of the first UE to obtain the first query result includes:

[0015] Sending a first request to a core network control plane network element, where the first request is used to request the core network control plane network element to process the first identification information of the first UE to obtain the second identification information of the first UE; wherein the first request includes the first identification information of the first UE, and the first identification information of the first UE is a service temporary mobile user identity S-TMSI of the first UE;

[0016] receiving a first response sent by the core network control plane network element, and obtaining second identification information of the first UE based on the first response; wherein the second identification information of the first UE is a number of a SIM card used by the first UE;

[0017] Based on the second identification information of the first UE and the connection reason of the first UE, a query is performed in the target black and white list to obtain a first query result.

[0018] In a possible design, obtaining the target blacklist and whitelist includes:

[0019] In response to a second input operation of the user, a first black and white list is obtained; wherein the second input operation carries the first black and white list; the first black and white list includes a first black list and / or a first white list, the first black list includes identification information of the at least one second UE and a service corresponding to each second UE, and the identification information of the second UE in the first black list is the number of a SIM card used by the second UE; the first white list includes identification information of the at least one third UE and a service corresponding to each third UE; the identification information of the second UE in the first white list is the number of a SIM card used by the second UE;

[0020] Sending a second request to a core network control plane network element, wherein the second request is used to request the core network control plane network element to process the first black and white list to obtain the target black and white list, and send the target black and white list to the backpack base station; wherein the second request includes the first black and white list;

[0021] Receive a second response sent by the core network control plane network element, and obtain the target blacklist and whitelist based on the second response; wherein the identification information of the second UE in the target blacklist is the S-TMSI of the second UE, and the identification information of the third UE in the target whitelist is the S-TMSI of the third UE.

[0022] In a possible design, obtaining the target blacklist and whitelist includes:

[0023] Send a third request to the core network control plane network element, the third request is used to request the core network control plane network element to determine the target black and white list based on the second black and white list, and send the target black and white list to the backpack base station; wherein the third request includes the geographic location information and the first coverage range information of the backpack base station; the second black and white list includes the black and white list information of the fourth UE within the second coverage range; the second coverage range is greater than the first coverage range; the second UE and / or the third UE in the target black and white list is the fourth UE in the second black and white list located within the first coverage range;

[0024] Receive a third response sent by the core network control plane network element, and obtain the target blacklist and whitelist based on the third response; wherein the identification information of the second UE in the target blacklist is the S-TMSI of the second UE, and the identification information of the third UE in the target whitelist is the S-TMSI of the third UE.

[0025] In a possible design, when the target blacklist and whitelist include the target blacklist and the whitelist, querying in the target blacklist and whitelist based on the first identification information of the first UE and the connection reason of the first UE to obtain a first query result includes:

[0026] Based on the first identification information of the first UE and the connection reason of the first UE, query the target blacklist and the target whitelist to determine whether the first identification information of the first UE exists in the target service of the target blacklist and / or the target whitelist;

[0027] In a case where the first identification information of the first UE exists in the target service of the target blacklist, obtaining the first query result; wherein the first query result is used to indicate that the first UE is refused to establish a connection with the backpack base station;

[0028] In a case where the first identification information of the first UE exists in the target service of the target whitelist, obtaining the first query result; wherein the first query result is used to indicate that the first UE is allowed to establish a connection with the backpack base station;

[0029] In a case where the first identification information of the first UE does not exist in the target services of the target blacklist and the target whitelist, the first query result is obtained; wherein, the first query result indicates whether to allow the first UE to establish a connection with the backpack base station based on the current network capacity of the backpack base station; in a case where the current network capacity is less than the preset network capacity, the first query result is used to indicate that the first UE is allowed to establish a connection with the backpack base station; in a case where the current network capacity is greater than or equal to the preset network capacity, the first query result is used to indicate that the first UE is denied to establish a connection with the backpack base station.

[0030] In one possible design, before the first UE performs a called service as a called UE, the method further includes:

[0031] Receive a first paging message sent by a core network control plane network element, and forward the first paging message to the first UE; wherein the first paging message is sent by the core network control plane network element to the backpack base station under preset conditions, and the preset condition is that the first identification information of the first UE does not exist in the called service of the target blacklist, and the first paging message includes the first identification information of the first UE and the paging reason of the first paging message.

[0032] In a possible design, after obtaining the target blacklist and whitelist, the method further includes:

[0033] A target message is sent to the fifth UE so that the fifth UE receiving the target message stores the content of the target message; wherein the fifth UE is the second UE or the third UE, and the target message includes the target blacklist and whitelist; when the fifth UE is the second UE and the fifth UE stores the target blacklist and whitelist, the fifth UE does not request the service corresponding to the fifth UE in the target blacklist from the backpack base station.

[0034] In a second aspect, the present application provides a backpack base station, including: a memory and a processor;

[0035] The memory is configured to store computer program instructions;

[0036] The processor is configured to run the computer program instructions so that the backpack base station implements the method as described in any one of the first aspects.

[0037] In a third aspect, the present application provides a communication system, comprising: a core network control plane network element and the above-mentioned backpack base station, wherein the core network control plane network element is communicatively connected with the backpack base station.

[0038] In a fourth aspect, the present application provides a communication device, comprising: a memory and a processor, wherein a computer program is stored in the memory, and when the processor executes the computer program, the method described in any one of the first aspects is implemented.

[0039] In a fifth aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, and when the computer program is executed by a processor, the method described in any one of the first aspects above is implemented.

[0040] In a sixth aspect, the present application provides a computer program product, wherein the computer program product includes a computer program code, and when the computer program code runs on a computer, the computer implements the method described in any one of the first aspects above.

[0041] In the seventh aspect, the present application provides a chip, comprising: an interface circuit and a logic circuit, wherein the interface circuit is used to receive signals from other chips outside the chip and transmit them to the logic circuit, or to send signals from the logic circuit to other chips outside the chip, and the logic circuit is used to implement the method described in any one of the first aspects above.

[0042] In an embodiment of the present application, the backpack base station first receives a connection establishment request sent by the first UE, and the connection establishment request includes the first identification information and the connection reason of the first UE; secondly, the backpack base station queries the target black and white list based on the first identification information and the connection reason of the first UE, and obtains the first query result corresponding to the first UE, and the first query result corresponding to the first UE is used to indicate whether the backpack base station allows the first UE to establish a connection with the backpack base station; finally, the backpack base station determines whether the backpack base station allows the first UE to establish a connection with the backpack base station based on the first query result corresponding to the first UE. The present application manages UEs requesting to establish a connection with the backpack base station by using the target black and white list, restricts unnecessary or not allowed UEs from establishing a connection with the backpack base station, reduces unnecessary network load on the backpack base station, thereby effectively preventing communication congestion, avoiding transmission delays and packet loss, and ensuring the communication quality of UEs connected to the backpack base station. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A flowchart of a method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application;

[0044] Figure 2 A flowchart of another method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application;

[0045] Figure 3 A flowchart of a method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application;

[0046] Figure 4 A flowchart of a method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application;

[0047] Figure 5 A schematic diagram of the structure of a communication system provided in an embodiment of the present application;

[0048] Figure 6 A schematic diagram of the structure of a communication device provided in this embodiment. DETAILED DESCRIPTION

[0049] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0050] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by technicians in the technical field to which this application belongs; the terms used in the specification of the application are only for the purpose of describing specific embodiments and are not intended to limit this application; the terms "including" and "having" and any variations thereof in the specification, claims and drawings of this application are intended to cover non-exclusive inclusions.

[0051] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present application. The appearance of the phrase "embodiments" in various locations in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0052] The term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B can exist at the same time, and B exists. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0053] In addition, the terms "first", "second", etc. in the specification and claims of this application or the above-mentioned drawings are used to distinguish different objects rather than to describe a specific order, and may explicitly or implicitly include one or more of the features.

[0054] In the description of the present application, unless otherwise specified, "plurality" and "at least two" mean more than two (including two). Similarly, "plurality groups" and "at least two groups" mean more than two groups (including two).

[0055] In the description of this application, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense. For example, "connected" or "connection" can refer to not only physical connection, but also electrical connection or signal connection. For example, it can be directly connected, that is, physically connected, or indirectly connected through at least one intermediate element, as long as the circuit is connected, or it can be the internal connection of two elements; signal connection can refer to signal connection through a circuit or through a media medium, such as radio waves. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0056] In order to make those skilled in the art better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely in conjunction with the accompanying drawings. It should be noted that different technical features in the present application can be combined with each other without conflict.

[0057] In an embodiment of the present application, a backpack base station is a base station that relies on a high-throughput satellite platform as a transmission carrier, providing communication between a terminal and a satellite. The backpack base station may also be referred to as a portable satellite base station or a mobile satellite base station.

[0058] The backpack base station communicates with the core network of the mobile communication system via satellite. The mobile communication system may be a Wideband Code Division Multiple Access (WCDMA) system, a Frequency Division Multiple Access (FDMA) system, an Orthogonal Frequency Division Multiple Access (OFDMA) system, a General Packet Radio Service (GPRS) system, a Long Term Evolution (LTE) system or a fifth generation mobile communication (5G) system, as well as other such communication systems.

[0059] User equipment can be a wireless terminal, which can be a device that provides voice and / or other business data connectivity to users, a handheld device with wireless connection function, or other processing equipment connected to a wireless modem. The wireless terminal can communicate with one or more core networks via a radio access network (RAN). The wireless terminal can be a mobile terminal, such as a mobile phone (or "cellular" phone) and a computer with a mobile terminal, for example, a portable, pocket, handheld, computer-built-in or vehicle-mounted mobile device, which exchanges voice and / or data with the radio access network.

[0060] Next, some specific embodiments and drawings are used to describe in detail how the present application solves the problem of low communication quality and easy communication congestion when the above-mentioned UE communicates via a backpack base station.

[0061] Figure 1 A flowchart of a method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application. Figure 1 As shown, the method for applying the black and white list in the backpack base station provided in the embodiment of the present application specifically includes S101 to S103, and S101 to S103 are described in detail below.

[0062] S101. A backpack base station receives a connection establishment request sent by a first user equipment UE.

[0063] The connection establishment request is used to request to establish a connection with the backpack base station; the connection establishment request includes the first identification information of the first UE and the connection reason; the connection reason is used to indicate the target service requested by the first UE.

[0064] The first identification information of the UE is a serving temporary mobile user identity (Serving Temporary Mobile Subscriber Identity, S-TMSI) of the UE.

[0065] It should be noted that S-TMSI is a temporary identifier used in LTE and 5G mobile communication systems. The S-TMSI of a UE is allocated to the UE by the core network control plane network element, and different S-TMSIs are used to identify different UEs.

[0066] The core network control plane network element may be a mobility management entity (Mobility Management Entity, MME) of an LTE communication system, or an access and mobility management function (Access and Mobility Management Function, AMF) of a 5G communication system, which is not specifically limited in this embodiment.

[0067] The services requested by the UE from the backpack base station can be roughly divided into two types: calling services and called services. The calling services refer to the call services initiated by the UE, and the called services refer to the call services received by the UE.

[0068] It should be noted that the target service requested by the first UE is a calling service or a called service.

[0069] S102: The backpack base station searches the target blacklist and whitelist based on the first identification information of the first UE and the connection reason of the first UE to obtain a first query result.

[0070] The target blacklist and whitelist include a target blacklist and / or a target whitelist.

[0071] It should be noted that the backpack base station stores a target blacklist and whitelist, which may include only a target blacklist but not a target whitelist; may include only a target whitelist but not a target blacklist; or may include both a target blacklist and a target whitelist.

[0072] The target blacklist includes identification information of at least one second UE and a service corresponding to each second UE. When the second UE requests a corresponding service, the second UE is not allowed to establish a connection with the backpack base station.

[0073] It should be noted that when any second UE in the target blacklist requests the service corresponding to the second UE in the target blacklist, the backpack base station will refuse the second UE to establish a connection with the backpack base station, preventing the second UE from connecting to the backpack base station.

[0074] Correspondingly, the services in the target blacklist include calling services and called services. For any second UE in the target blacklist, the services corresponding to the second UE are calling services and / or called services, and the first UE may be the second UE.

[0075] It should be noted that in the target blacklist, the target blacklist can be simplified by wildcards. When the service types in the target blacklist include calling services and called services, and the services corresponding to a second UE in the target blacklist include calling services and called services, wildcards can be used to match the services corresponding to the second UE, and there is no need to list all services corresponding to the second UE separately in the target blacklist.

[0076] For example, a service corresponding to a second UE in the target blacklist uses a wildcard (the wildcard is represented by a specific symbol, such as "*"). When the second UE sends a connection establishment request to the backpack base station and requests any of all services (calling services and called services), the backpack base station will refuse the second UE to establish a connection with the backpack base station.

[0077] In one embodiment of the present application, only a target blacklist is stored in the backpack base station. In this case, when the second UE requests a service corresponding to the second UE in the target blacklist, the backpack base station refuses the second UE to establish a connection with the backpack base station; when the second UE requests a service other than the service corresponding to the second UE in the target blacklist, the backpack base station allows the second UE to establish a connection with the backpack base station.

[0078] For example, as shown in Table 1, in the target blacklist, the service corresponding to UEA is the calling service, and the service corresponding to UEB is the called service. When only the target blacklist is stored in the backpack base station, UEA cannot initiate an active call to other UEs through the backpack base station as a calling UE, but UEA can establish a connection with the backpack base station as a called UE; UEB cannot establish a connection with the backpack base station as a called UE, but UEB can initiate an active call to other UEs through the backpack base station as a calling UE.

[0079] Table 1

[0080]

[0081] It should be noted that when other UEs outside the target blacklist send a connection establishment request to the backpack base station to request a service, the backpack base station allows other UEs to establish a connection with the backpack base station. However, when the number of UEs currently connected to the backpack base station is greater than or equal to the preset number, the backpack base station may refuse other UEs outside the next target blacklist from establishing a connection with the backpack base station.

[0082] The preset number can be set by the backpack base station manager, and this embodiment does not specifically limit this.

[0083] For example, the preset number may be 32.

[0084] When the number of UEs currently connected to the backpack base station is 32, when another UE outside the target blacklist requests to establish a connection with the backpack base station, since the number of UEs currently connected to the backpack base station is equal to the preset number, the backpack base station refuses the other UE to establish a connection with the backpack base station; when the number of UEs currently connected to the backpack base station is 30, when another UE outside the target blacklist requests to establish a connection with the backpack base station, since the number of UEs currently connected to the backpack base station is less than the preset number, the backpack base station allows the other UE to establish a connection with the backpack base station.

[0085] In this embodiment, by setting a target blacklist, the UE in the target blacklist can be restricted from establishing a connection with the backpack base station when executing the corresponding service of the UE in the target blacklist, thereby reducing the network load of the backpack base station, avoiding excessive consumption of network resources, and preventing communication congestion.

[0086] The target whitelist includes identification information of at least one third UE and services corresponding to each third UE. When the third UE requests the corresponding service, the third UE is allowed to establish a connection with the backpack base station.

[0087] It should be noted that, when any third UE in the target whitelist requests a service corresponding to the third UE in the target whitelist, the backpack base station allows the third UE to establish a connection with the backpack base station.

[0088] Correspondingly, the services in the target whitelist also include calling services and called services. For any third UE in the target whitelist, the service corresponding to the third UE is calling service and / or called service, and the first UE may be the third UE.

[0089] It should be noted that in the target whitelist, the target whitelist can be simplified by wildcards. When the service types in the target whitelist include calling services and called services, and the services corresponding to a third UE in the target whitelist include calling services and called services, wildcards can be used to match the services corresponding to the third UE, and there is no need to list all the services corresponding to the third UE separately in the target whitelist.

[0090] For example, a service corresponding to a third UE in the target whitelist uses a wildcard (the wildcard is represented by a specific symbol, such as "*"). When the third UE sends a connection establishment request to the backpack base station and requests any of all services (calling services and called services), the backpack base station will allow the third UE to establish a connection with the backpack base station.

[0091] In another embodiment of the present application, when only a target whitelist is stored in the backpack base station, when the third UE requests a service corresponding to the third UE in the target whitelist, the backpack base station allows the third UE to establish a connection with the backpack base station; when the third UE requests other services except the service corresponding to the third UE in the target whitelist, the backpack base station refuses the third UE to establish a connection with the backpack base station. In addition, when other UEs outside the target whitelist request services, the backpack base station refuses other UEs to establish a connection with the backpack base station.

[0092] For example, as shown in Table 2, the target whitelist includes UEC and UED, the service corresponding to UEC in the target whitelist is the calling service, and the service corresponding to UED is the called service. When only the target whitelist is stored in the backpack base station, UEC can initiate an active call to other UEs through the backpack base station as a calling UE, but UEC cannot establish a connection with the backpack base station as a called UE; UED can establish a connection with the backpack base station as a called UE, but UEB cannot initiate an active call to other UEs through the backpack base station as a calling UE.

[0093] Table 2

[0094]

[0095] In this embodiment, by listing specific UEs and their corresponding services in the target whitelist, it can be ensured that the specific UE can preferentially establish a connection with the backpack base station when requesting its corresponding service, thereby ensuring the timeliness and reliability of the communication of the specific UE, helping to reduce communication congestion, reduce transmission delays and packet loss rates, and thus improve the overall communication quality and reliability of the backpack base station.

[0096] In another embodiment of the present application, the backpack base station stores both the target blacklist and the target whitelist. In this case, for any UE, when the UE requests a corresponding service, if the target blacklist includes the UE and the service corresponding to the UE, the backpack base station refuses the UE to establish a connection with the backpack base station; if the target whitelist includes the UE and the service corresponding to the UE, the backpack base station allows the UE to establish a connection with the backpack base station; if the target whitelist and the target blacklist do not include the UE and the service corresponding to the UE, the backpack base station can flexibly determine whether to allow the UE to establish a connection with the backpack base station based on the current network capacity of the backpack base station.

[0097] In this embodiment, by using the target blacklist and the target whitelist at the same time, the backpack base station can more accurately control the connection between the UE and the backpack base station, optimize resource allocation, effectively prevent communication congestion, reduce transmission delays and packet loss, and thus improve communication quality.

[0098] It should be noted that after the backpack base station obtains the first identification information of the first UE and the connection reason of the first UE based on the connection establishment request sent by the first UE, the backpack base station queries the target black and white list stored inside the backpack base station according to the first identification information of the first UE and the connection reason of the first UE, and obtains a first query result. The first query result is used to indicate whether the backpack base station allows the first UE to establish a connection with the backpack base station.

[0099] S103: The backpack base station determines whether to allow the first UE to establish a connection with the backpack base station based on the first query result.

[0100] After obtaining the first query result corresponding to the first UE, the backpack base station determines whether to allow the first UE to establish a connection with the backpack base station based on the content indicated by the first query result corresponding to the first UE.

[0101] It should be noted that when only the target blacklist is stored inside the backpack base station and the first query result corresponding to the first UE is that the first UE and the target service corresponding to the first UE are in the target blacklist, the first query result is used to instruct the backpack base station to refuse the first UE to establish a connection with the backpack base station.

[0102] In the case where only the target blacklist is stored inside the backpack base station, and the first query result corresponding to the first UE is that the first UE and the target service corresponding to the first UE are not in the target blacklist, the first query result is used to instruct the backpack base station to determine whether to allow the first UE to establish a connection with the backpack base station according to the number of UEs currently connected to the backpack base station. In the case where the number of UEs currently connected to the backpack base station is less than a preset number, the first query result is used to instruct the backpack base station to allow the first UE to establish a connection with the backpack base station; in the case where the number of UEs currently connected to the backpack base station is greater than or equal to the preset number, the first query result is used to instruct the backpack base station to refuse the first UE to establish a connection with the backpack base station.

[0103] When only the target whitelist is stored inside the backpack base station and the first query result corresponding to the first UE is that the first UE and the target service corresponding to the first UE are in the target whitelist, the first query result is used to instruct the backpack base station to allow the first UE to establish a connection with the backpack base station.

[0104] When only the target whitelist is stored inside the backpack base station and the first query result corresponding to the first UE is that the first UE and the target service corresponding to the first UE are not in the target whitelist, the first query result is used to instruct the backpack base station to reject the first UE from establishing a connection with the backpack base station.

[0105] In an embodiment of the present application, the backpack base station first receives a connection establishment request sent by the first UE, and the connection establishment request includes the first identification information and the connection reason of the first UE; secondly, the backpack base station queries the target black and white list based on the first identification information and the connection reason of the first UE, and obtains the first query result corresponding to the first UE, and the first query result corresponding to the first UE is used to indicate whether the backpack base station allows the first UE to establish a connection with the backpack base station; finally, the backpack base station determines whether the backpack base station allows the first UE to establish a connection with the backpack base station based on the first query result corresponding to the first UE. The present application manages UEs requesting to establish a connection with the backpack base station by using the target black and white list, restricts unnecessary or not allowed UEs from establishing a connection with the backpack base station, reduces unnecessary network load on the backpack base station, thereby effectively preventing communication congestion, avoiding transmission delays and packet loss, and ensuring the communication quality of UEs connected to the backpack base station.

[0106] In the above embodiment, the backpack base station needs to query the target black and white list based on the first identification information of the first UE and the connection reason of the first UE to obtain the first query result. It can be seen that the backpack base station needs to obtain the target black and white list before receiving the connection establishment request sent by the first user equipment UE. Next, the specific process of the backpack base station obtaining the target black and white list is described in detail.

[0107] In a possible embodiment, before S101, the backpack base station receives a connection establishment request sent by the first user equipment UE, the method for applying the black and white list in the backpack base station further includes: S100, the backpack base station obtains a target black and white list.

[0108] It should be noted that the backpack base station can obtain the target black and white list through manual configuration, or it can obtain the target black and white list through the core network control plane network element based on the geographical location of the backpack base station and the parameters of the backpack base station. This embodiment does not make specific limitations on this.

[0109] In an embodiment of the present application, by obtaining the target black and white list, the backpack base station can determine whether to allow the first UE to connect to the backpack base station based on the target black and white list when it subsequently receives a connection establishment request sent by the first UE, thereby achieving effective management of the connection establishment request of the first UE, reducing network congestion, reducing transmission delay and packet loss rate, and thereby improving the communication quality of the backpack base station.

[0110] In the above embodiment, the backpack base station needs to obtain the target black and white list. Next, the first method for the backpack base station to obtain the target black and white list by manual configuration is described in detail.

[0111] Figure 2A flowchart of another method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application. Figure 2 As shown, in a possible embodiment, S100, the backpack base station obtains the target black and white list, which can be specifically: the backpack base station obtains the target black and white list in response to the first input operation of the user.

[0112] Among them, the first input operation carries the target blacklist and whitelist; the identification information of the second UE in the target blacklist is the number of the user identification SIM card used by the second UE, and the identification information of the third UE in the target whitelist is the number of the SIM card used by the third UE.

[0113] It should be noted that before the backpack base station obtains the target blacklist and whitelist in response to the user's first input operation, the backpack base station needs to receive the user's first input operation. The user's first input operation is performed by the user through an operation administration and maintenance (OAM) tool.

[0114] It should be noted that OAM is a key tool set used by operators to manage and maintain their network equipment and services. OAM provides operators with a complete set of tools and functions for managing networks and services, including equipment configuration, performance monitoring, fault detection, user management, etc. Backpack base station managers can send input operations to backpack base stations through OAM.

[0115] It should be noted that the number of the SIM card used by the UE is the telephone number corresponding to the UE. Since the telephone number is an identifier commonly used by the UE in the network, it is easy to obtain and has universality. Therefore, the target black and white list carried in the user's first input operation uses the number of the SIM card used by the UE as the identification information of the UE, which is convenient for backpack base station managers to configure and maintain the target black and white list.

[0116] In this embodiment, after the backpack base station receives the first input operation sent by the backpack base station manager through OAM, the backpack base station parses the first input operation to obtain the target blacklist and whitelist.

[0117] In a possible embodiment, it should be noted that, when the identification information of the second UE in the target blacklist is the number of the user identification SIM card used by the second UE, and the identification information of the third UE in the target whitelist is the number of the SIM card used by the third UE, S102, the backpack base station, searches the target blacklist and whitelist based on the first identification information of the first UE and the connection reason of the first UE to obtain a first query result, which can be implemented through S1021 to S1023. S1021 to S1023 are described in detail below.

[0118] S1021. The backpack base station sends a first request to a core network control plane network element. Correspondingly, the core network control plane network element receives the first request.

[0119] Among them, the first request is used to request the core network control plane network element to process the first identification information of the first UE to obtain the second identification information of the first UE; the first request includes the first identification information of the first UE, and the first identification information of the first UE is the service temporary mobile user identity S-TMSI of the first UE.

[0120] It should be noted that the second identification information of the first UE refers to the number of the SIM card used by the first UE, that is, the telephone number corresponding to the first UE.

[0121] After the core network control plane network element receives the first request, the core network control plane network element converts the S-TMSI of the first UE into the number of the SIM card used by the first UE, obtains the second identification information of the first UE, and encapsulates and packages the second identification information of the first UE to form a first response. Finally, the core network control plane network element sends the first response to the backpack base station.

[0122] Specifically, the operator's Home Subscriber Server (HSS) stores the numbers of SIM cards used by different UEs. After the core network control plane network element allocates S-TMSIs to different UEs, the S-TMSIs corresponding to different UEs are also stored in the HSS, and a mapping table is formed in the HSS to define the mapping relationship between the number of the SIM card used by the UE and the S-TMSI of the UE. After the core network control plane network element receives the first request, the core network control plane network element can obtain the number of the SIM card used by the first UE based on the mapping table stored in the HSS to define the mapping relationship between the number of the SIM card used by the UE and the S-TMSI of the UE, that is, obtain the second identification information of the first UE.

[0123] S1022. The backpack base station receives a first response sent by a core network control plane network element, and obtains second identification information of the first UE based on the first response.

[0124] The second identification information of the first UE is the number of the SIM card used by the first UE.

[0125] It should be noted that, after receiving the first response sent by the core network control plane network element, the backpack base station parses the first response to obtain the second identification information of the first UE.

[0126] S1023. The backpack base station queries the target blacklist and whitelist based on the second identification information of the first UE and the connection reason of the first UE to obtain a first query result.

[0127] It should be noted that the method by which the backpack base station queries the target black and white lists based on the second identification information of the first UE and the connection reason of the first UE to obtain the first query result is similar to the method shown in S102 above, and this embodiment will not be repeated here.

[0128] In an embodiment of the present application, the backpack base station uses the black and white list manually configured by the backpack base station manager as the target black and white list, and the identification information of the second UE and / or the third UE in the target black and white list is the number of the SIM card used by the second UE and / or the third UE; after the backpack base station receives the connection establishment request sent by the first UE, the backpack base station sends the S-TMSI of the first UE in the connection establishment request sent by the first UE to the core network control plane network element, requests the core network control plane network element to map the S-TMSI of the first UE to the number of the SIM card used by the first UE, and returns the number of the SIM card used by the first UE to the backpack base station, so that the backpack base station queries in the target black and white list based on the number of the SIM card used by the first UE, and obtains the first query result corresponding to the first UE.

[0129] In the above embodiment, the backpack base station needs to obtain the target black and white list. Next, the second method for the backpack base station to obtain the target black and white list by manual configuration is described in detail.

[0130] Figure 3 A flowchart of a method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application is shown below. Figure 3 As shown, in a possible embodiment, S100, the backpack base station may obtain the target black and white list through Sa1 to Sa3, and Sa1 to Sa3 are described in detail below.

[0131] Sa1. The backpack base station obtains a first black and white list in response to a second input operation of the user.

[0132] Among them, the second input operation carries the first blacklist and whitelist; the first blacklist and whitelist includes the first blacklist and / or the first whitelist, the first blacklist includes the identification information of at least one second UE and the service corresponding to each second UE, and the identification information of the second UE in the first blacklist is the number of the SIM card used by the second UE; the first whitelist includes the identification information of at least one third UE and the service corresponding to each third UE, and the identification information of the second UE in the first whitelist is the number of the SIM card used by the second UE.

[0133] It should be noted that the method by which the backpack base station obtains the first black and white list in response to the user's second input operation is similar to the method by which the backpack base station obtains the target black and white list in response to the user's second input operation in the above embodiment, and this embodiment will not repeat it again.

[0134] The first blacklist corresponds to the target blacklist. When the second UE in the first blacklist requests the corresponding service, the backpack base station does not allow the second UE to be connected to the backpack base station.

[0135] The first whitelist corresponds to the target whitelist, and when the third UE in the first whitelist requests the corresponding service, the backpack base station allows the second UE to connect to the backpack base station.

[0136] Sa2. The backpack base station sends a second request to the core network control plane network element. Correspondingly, the core network control plane network element receives the second request.

[0137] The second request is used to request the core network control plane network element to process the first black and white list to obtain a target black and white list, and send the target black and white list to the backpack base station; the second request includes the first black and white list.

[0138] It should be noted that the second request may also include usage information of the first blacklist and whitelist, and the usage information of the first blacklist and whitelist is used to describe the purpose of the first blacklist and whitelist. By sending the usage information of the first blacklist and whitelist to the core network control plane network element, the core network control plane network element can be helped to determine how to handle the first blacklist and whitelist.

[0139] For example, the purpose of the first black and white list is to help the backpack base station determine whether to allow the UE that sends a connection establishment request to connect to the backpack base station.

[0140] It should be noted that after the core network control plane network element receives the second request, the core network control plane network element converts the SIM card numbers corresponding to the multiple UEs included in the first black and white list into S-TMSIs corresponding to the multiple UEs respectively, and obtains the target black and white list corresponding to the first black and white list.

[0141] Specifically, after the core network control plane network element receives the second request, the core network control plane network element can obtain the S-TMSI corresponding to each UE in the first black and white list based on the mapping table stored in the HSS that defines the mapping relationship between the SIM card number used by the UE and the S-TMSI of the UE, and then obtain the target black and white list corresponding to the first black and white list.

[0142] In addition, the core network control plane network element can also perform unified and standardized processing on the data format of the first black and white list to ensure that the data structure of the target black and white list is consistent, which is convenient for subsequent storage. For example, specific field separators, data types, etc. are uniformly used.

[0143] The core network control plane network element may also perform deduplication processing on redundant data in the first black and white list to ensure that the same UE and the same service are not recorded repeatedly.

[0144] Sa3. The backpack base station receives the second response sent by the core network control plane network element, and obtains the target black and white list based on the second response.

[0145] The identification information of the second UE in the target blacklist is the S-TMSI of the second UE, and the identification information of the third UE in the target whitelist is the S-TMSI of the third UE.

[0146] It should be noted that after the core network control plane network element processes the first black and white list and obtains the target black and white list, the core network control plane network element sends a second response to the backpack base station, and the second response carries the target black and white list, so that the backpack base station can parse and extract data from the second response after receiving the second response to obtain and store the target black and white list.

[0147] In an embodiment of the present application, a first black and white list is obtained by responding to a second input operation of the user, and the first black and white list is sent to a core network control plane network element. The core network control plane network processes the first black and white list, converts the first black and white list into a target black and white list, and returns it to the backpack base station, so that after the backpack base station subsequently receives the connection establishment request of the UE, it directly determines whether to allow the UE to connect to the backpack base station based on the target black and white list, thereby achieving effective management of the UE's connection establishment request, reducing network congestion, reducing transmission delay and packet loss rate, and thereby improving the communication quality of the backpack base station.

[0148] In the above embodiment, the backpack base station obtains the target black and white list by manual configuration. Next, the services included in the target black and white list are described in detail.

[0149] In a possible embodiment, the services requested by the UE from the backpack base station can be more finely divided into five main services: emergency call service, high priority connection service, calling service, called service and other services.

[0150] Among them, the calling service can also be divided into calling signaling transmission service, calling data transmission service, calling voice communication service, calling video communication service and calling short message service according to the main calling service types.

[0151] It should be noted that the called service refers to a service that the UE requests from the backpack base station when the UE needs to connect to the backpack base station when the UE is allowed to connect to the backpack base station as a called UE.

[0152] The target service requested by the first UE may be any one of an emergency call service, a high priority connection service, a calling signaling transmission service, a calling data transmission service, a calling voice communication service, a calling video communication service, a calling short message service, and a called service, and this embodiment does not specifically limit this. In this case, the method by which the backpack base station determines whether to allow the first UE to establish a connection with the backpack base station is the same as the method described in the above embodiments S101 to S103, and this embodiment will not be repeated.

[0153] As shown in Table 3, Table 3 shows the target blacklist and target whitelist obtained by the backpack base station through manual configuration.

[0154] Table 3

[0155]

[0156] It should be noted that in the target blacklist provided in this embodiment, the target blacklist can be simplified by wildcards. When the service types in the target blacklist include emergency call service, high priority connection service, caller signaling transmission service, caller data transmission service, caller voice communication service, caller video communication service, caller short message service, called service and other services, and the service corresponding to a second UE in the target blacklist includes all services of emergency call service, high priority connection service, caller signaling transmission service, caller data transmission service, caller voice communication service, caller video communication service, caller short message service, called service and other services, wildcards can be used to match the service corresponding to the second UE, and there is no need to list all services corresponding to the second UE separately in the target blacklist.

[0157] For example, a service corresponding to a second UE in the target blacklist uses a wildcard (the wildcard is represented by a specific symbol, such as "*"). When the second UE sends a connection establishment request to the backpack base station and requests any of all services (emergency call service, high priority connection service, calling signaling transmission service, calling data transmission service, calling voice communication service, calling video communication service, calling short message service, called service and other services), the backpack base station will refuse the third UE to establish a connection with the backpack base station.

[0158] It should be noted that in the target whitelist provided in this embodiment, the target whitelist can be simplified by wildcards. When the service types in the target whitelist include emergency call service, high priority connection service, caller signaling transmission service, caller data transmission service, caller voice communication service, caller video communication service, caller short message service, called service and other services, and the service corresponding to a third UE in the target whitelist includes all services of emergency call service, high priority connection service, caller signaling transmission service, caller data transmission service, caller voice communication service, caller video communication service, caller short message service, called service and other services, wildcards can be used to match the service corresponding to the third UE, and there is no need to list all services corresponding to the third UE separately in the target whitelist.

[0159] For example, a service corresponding to a third UE in the target whitelist uses a wildcard (the wildcard is represented by a specific symbol, such as "*"). When the third UE sends a connection establishment request to the backpack base station and requests any of all services (emergency call service, high priority connection service, calling signaling transmission service, calling data transmission service, calling voice communication service, calling video communication service, calling short message service, called service and other services), the backpack base station will allow the third UE to establish a connection with the backpack base station.

[0160] In an embodiment of the present application, by dividing the services corresponding to the UEs in the target blacklist and the target whitelist more finely, accurate resource allocation and optimization can be achieved, service quality can be improved, system flexibility can be enhanced, decision-making precision and accuracy can be improved, and user experience can be optimized.

[0161] In the above embodiment, the backpack base station needs to obtain the target black and white list. Next, a method for the backpack base station to obtain the target black and white list through the core network control plane element based on its own geographical location and its own parameters is described in detail.

[0162] Figure 4 A flowchart of a method for applying a blacklist and whitelist in a backpack base station provided in an embodiment of the present application is shown below. Figure 4 As shown, in a possible embodiment, the backpack base station may obtain the target black and white list through Sc1 and Sc2, and Sc1 and Sc2 are described in detail below.

[0163] Sc1. The backpack base station sends a third request to the core network control plane network element. Correspondingly, the core network control plane network element receives the third request.

[0164] The third request is used to request the core network control plane network element to determine the target black and white list based on the second black and white list, and send the target black and white list to the backpack base station. The second black and white list includes the black and white list information of the fourth UE within the second coverage area.

[0165] It should be noted that after the backpack base station is powered on, the backpack base station establishes a connection with the satellite and sends a third request to the core network control plane network element, so that the core network control plane network element determines the target black and white list based on the third request and the second black and white list sent by the backpack base station, and sends the target black and white list to the backpack base station.

[0166] It should be noted that the second black and white list is pre-stored on the core network. The second black and white list includes the second black list and / or the second white list. The second black list includes the identification information of at least one fourth UE and the service corresponding to each fourth UE. When the fourth UE requests the service corresponding to the fourth UE in the second black list, the backpack base station does not allow the fourth UE to connect to the backpack base station. The second white list includes the identification information of at least one fourth UE and the service corresponding to each fourth UE. When the fourth UE requests the service corresponding to the fourth UE in the second white list, the backpack base station allows the fourth UE to connect to the backpack base station. The fourth UE is any UE within the second coverage area.

[0167] The third request includes the geographical location information and the first coverage range information of the backpack base station.

[0168] It should be noted that the third request may include only the geographic location information of the backpack base station, but not the first coverage range information of the backpack base station; or may include both the geographic location information of the backpack base station and the first coverage range information.

[0169] In one embodiment, the core network control plane network element maintains a database that records the geographical location information and corresponding coverage of each backpack base station. After the core network control plane network element receives the geographical location information of the backpack base station, the core network control plane network element can obtain the coverage of the backpack base station by querying the database, that is, obtain the first coverage information of the backpack base station.

[0170] In another embodiment, the core network control plane network element may dynamically calculate the coverage of the backpack base station according to the technical specifications and geographical location information of the backpack base station, that is, obtain the first coverage information of the backpack base station.

[0171] For example, the core network control plane network element can calculate the coverage of the backpack base station based on the transmission power, antenna gain and terrain data of the backpack base station.

[0172] It should be noted that the geographic location information of the backpack base station can also be manually input into the core network control plane network element by the user through manual configuration. This implementation does not specifically limit the way in which the core network control plane network element obtains the geographic location information of the backpack base station.

[0173] Among them, the second coverage range is larger than the first coverage range; the second UE and / or the third UE in the target black and white list is the fourth UE in the second black and white list that is located in the first coverage range.

[0174] It should be noted that after the core network control plane network element obtains the first coverage range information of the backpack base station, the core network control plane network element screens the second black and white list stored in the core network, determines the black and white list corresponding to all fourth UEs within the first coverage range as the target black and white list, packages the target black and white list to form a third response, and sends the third response to the backpack base station.

[0175] Sc2. The backpack base station receives the third response sent by the core network control plane network element, and obtains the target blacklist and whitelist based on the third response.

[0176] It should be noted that the third response sent by the core network control plane network element to the backpack base station carries the target black and white list. After receiving the third response, the backpack base station parses and extracts data from the third response to obtain the target black and white list, and stores the target black and white list.

[0177] In an embodiment of the present application, the second black and white list is screened by the core network control plane network element, and only the black and white list of UEs within the first coverage range of the backpack base station is retained in the target black and white list. This can ensure that the connection control of the backpack base station is more accurate, reduce the interference of the black and white list information of UEs outside the first coverage range of the backpack base station, and effectively improve the query efficiency of the target black and white list.

[0178] In the above embodiment, the backpack base station needs to query the target black and white list based on the first identification information of the first UE and the connection reason of the first UE to obtain the first query result corresponding to the first UE. Next, when the target black and white list includes a target black list and a target white list, the backpack base station needs to query the target black and white list based on the first identification information of the first UE and the connection reason of the first UE to obtain the first query result corresponding to the first UE.

[0179] In a possible embodiment, S102, the backpack base station queries the target black and white list based on the first identification information of the first UE and the connection reason of the first UE to obtain a first query result, which can be achieved through Sd1 to Sd4. Sd1 to Sd4 are described in detail below.

[0180] Sd1. The backpack base station queries the target blacklist and the target whitelist based on the first identification information of the first UE and the connection reason of the first UE to determine whether the first identification information of the first UE exists in the target service of the target blacklist and / or the target whitelist.

[0181] Sd2. When the first identification information of the first UE exists in the target service of the target blacklist, the backpack base station obtains the first query result.

[0182] The first query result is used to instruct the backpack base station to reject the first UE from establishing a connection with the backpack base station.

[0183] Sd3. When the first identification information of the first UE exists in the target service of the target whitelist, the backpack base station obtains the first query result.

[0184] The first query result is used to indicate that the first UE is allowed to establish a connection with the backpack base station.

[0185] Sd4. When the backpack base station does not have the first identification information of the first UE in the target services in the target blacklist and the target whitelist, it obtains the first query result.

[0186] The first query result is used to instruct the backpack base station to determine whether to allow the first UE to establish a connection with the backpack base station based on the current network capacity of the backpack base station.

[0187] In a case where the current network capacity is less than the preset network capacity, the first query result is used to instruct the backpack base station to allow the first UE to establish a connection with the backpack base station.

[0188] When the current network capacity is greater than or equal to the preset network capacity, the first query result is used to instruct the backpack base station to reject the first UE from establishing a connection with the backpack base station.

[0189] It should be noted that the preset network capacity can be set by the backpack base station manager himself, and this embodiment does not make any specific limitation to this.

[0190] It should be noted that, when the first identification information of the first UE does not exist in the target services of the target blacklist and the target whitelist, and the current network capacity is less than the preset network capacity, the backpack base station allows the first UE to establish a connection with the backpack base station. After the first UE is connected to the backpack base station, when other UEs request services corresponding to other UEs in the target whitelist and the current network capacity is greater than or equal to the preset network capacity, the backpack base station can disconnect the first UE from the backpack base station to allow other UEs to connect to the backpack base station.

[0191] In an embodiment of the present application, by querying the first identification information and connection reason of the UE in the target blacklist and the target whitelist, it is determined whether the backpack base station allows the UE to establish a connection with the backpack base station, thereby achieving efficient management of the connection establishment request sent by the UE, optimizing resource utilization, and ensuring the security and efficiency of the UE's communication through the backpack base station.

[0192] In the above embodiment, the first UE can perform a calling service as a calling UE. Next, a method for the backpack base station to determine whether to allow the first UE to establish a connection with the backpack base station when the first UE requests a calling service as a calling UE is described in detail.

[0193] In a possible embodiment, when the target service requested by the first UE is a calling service, the method by which the backpack base station determines whether to allow the first UE to establish a connection with the backpack base station is the same as the method described in S102 and S103 in the above embodiments, and is not described in detail in this embodiment.

[0194] It should be noted that when the target service requested by the first UE is a calling service, the first UE sends a connection establishment request to the backpack base station through Radio Resource Control (RRC) signaling.

[0195] Among them, when the target service requested by the first UE is a calling service and the backpack base station determines to allow the first UE to establish a connection with the backpack base station, the backpack base station sends a connection permission response to the first UE to inform the first UE that the backpack base station allows the first UE to establish a connection with the backpack base station.

[0196] When the target service requested by the first UE is a calling service and the backpack base station determines to reject the connection between the first UE and the backpack base station, the backpack base station sends a connection rejection response to the first UE to inform the first UE that the backpack base station rejects the connection between the first UE and the backpack base station.

[0197] It should be noted that the connection rejection response sent by the backpack base station to the first UE carries the reason why the backpack base station rejects the first UE from establishing a connection with the backpack base station, so that the first UE can clearly understand the reason why it cannot establish a connection with the backpack base station, and will no longer send a connection establishment request to the backpack base station based on the same reason in the future.

[0198] For example, when the backpack base station refuses to establish a connection between the first UE and the backpack base station because the first UE and the target service corresponding to the first UE are in the target blacklist, the connection rejection response sent by the backpack base station to the first UE may be "the target service of the first UE is in the target blacklist and cannot be connected to the backpack base station". Subsequently, the first UE no longer sends a connection establishment request for requesting the target service to the backpack base station.

[0199] In an embodiment of the present application, when the first UE requests a calling service and the backpack base station refuses to establish a connection between the first UE and the backpack base station, the backpack base station sends a response message including the reason for the rejection to the first UE, so that the first UE can clearly understand the specific reason for the rejection, thereby avoiding the first UE from repeatedly sending connection establishment requests based on the same reason in the future, thereby improving the efficiency of controlling whether the UE establishes a connection with the backpack base station, reducing unnecessary signaling interactions, and optimizing the utilization of network resources.

[0200] In the above embodiment, the first UE can also perform the called service as the called UE. Next, a method for the first UE to perform the called service as the called UE is described in detail.

[0201] In a possible embodiment, when the target black and white lists are not stored in the core network control plane network element and the first UE performs called services as a called UE, the core network control plane network element sends the paging request of the calling UE to the backpack base station, and the backpack base station determines whether to allow the first UE to establish a connection with the backpack base station.

[0202] Among them, the target service requested by the first UE is a called service. At this time, the method by which the backpack base station determines whether to allow the first UE to establish a connection with the backpack base station is the same as the method described in S101 to S103 in the above embodiment, and will not be repeated in this embodiment.

[0203] When the target service requested by the first UE is a called service and the backpack base station determines to allow the first UE to establish a connection with the backpack base station, the backpack base station sends a paging message of the calling UE to the first UE through the wireless interface to inform the first UE that the calling UE is requesting to call the first UE.

[0204] When the target service requested by the first UE is a called service and the backpack base station determines to reject the establishment of a connection between the first UE and the backpack base station, the backpack base station does not send a paging message of the calling UE to the first UE.

[0205] It should be noted that the paging message sent by the calling UE carries the first identification information of the first UE and the service requested by the calling UE. The service requested by the calling UE is the target service requested by the first UE, so that the backpack base station determines whether to allow the first UE to connect to the backpack base station as a called device based on the first identification information of the first UE and the service requested by the calling UE.

[0206] It should be noted that when the backpack base station refuses the first UE to establish a connection with the backpack base station, the paging message of the calling UE is not sent to the first UE, which avoids unnecessary signaling overhead and resource waste, improves the efficiency of network resource utilization, and reduces the system load caused by invalid paging, thereby optimizing the performance and reliability of the overall communication system.

[0207] In an embodiment of the present application, based on the decision of whether the backpack base station allows the first UE to establish a connection with the backpack base station, a paging message of the calling UE is dynamically sent or not sent to the first UE, ensuring that the first UE is notified only when the backpack base station allows the first UE to establish a connection with the backpack base station, thereby improving the efficiency of network resource utilization, reducing invalid signaling overhead, optimizing system performance, and improving the overall communication quality and user experience.

[0208] In another possible embodiment, when the target black and white lists are stored in the core network control plane network element and the first UE performs the called service as a called UE, the core network control plane network element directly determines whether to allow the first UE to establish a connection with the backpack base station.

[0209] Among them, the method in which the core network control plane network element directly determines whether to allow the first UE to establish a connection with the backpack base station can be implemented through Se1 to Se3, and Se1 to Se3 are described in detail below.

[0210] Se1. The core network control plane network element receives a paging request sent by the calling UE.

[0211] The paging request is used to request the first UE to establish a connection with the backpack base station.

[0212] It should be noted that the paging request sent by the calling UE carries the first identification information of the first UE and the service requested by the calling UE. The service requested by the calling UE is the target service requested by the first UE, so that the core network control plane network element determines whether to allow the first UE to establish a connection with the backpack base station as a called device based on the first identification information of the first UE and the service requested by the calling UE.

[0213] Se2. The core network control plane network element searches the target blacklist and whitelist based on the first identification information of the first UE and the service requested by the calling UE to obtain a second query result.

[0214] It should be noted that the specific implementation of Se2 is similar to the specific implementation of S102 in the above embodiment, and will not be described in detail in this embodiment.

[0215] Se3. The core network control plane network element determines whether to allow the first UE to establish a connection with the backpack base station based on the second query result.

[0216] It should be noted that the specific implementation of Se3 is similar to the specific implementation of S103 in the above embodiment, and will not be described in detail in this embodiment.

[0217] Among them, when the core network control plane network element determines, based on the second query result, that the first UE is allowed to establish a connection with the backpack base station, that is, the first identification information of the first UE does not exist in the called service of the target blacklist, the core network control plane network element sends a first paging message to the backpack base station, so that the backpack base station forwards the first paging message to the first UE.

[0218] It should be noted that the first paging message includes the first identification information of the first UE and the paging reason of the first paging message, so that the backpack base station forwards the first paging message to the first UE based on the first identification information of the first UE in the first paging message, and at the same time, it is convenient for the first UE to know the purpose of the calling UE paging the first UE.

[0219] It should be noted that, when the core network control plane network element determines to reject the first UE from establishing a connection with the backpack base station based on the second query result, the core network control plane network element does not send the first paging message to the backpack base station.

[0220] In an embodiment of the present application, the core network control plane network element dynamically decides whether to send a first paging message to the first UE through the backpack base station based on the second query result, ensuring that the first paging message is sent to the first UE through the backpack base station only when the first UE is allowed to establish a connection with the backpack base station, thereby improving the utilization efficiency of network resources, reducing the overhead of invalid signaling, optimizing system performance, and improving the quality and reliability of communication services.

[0221] In the above embodiment, since the first UE does not know in advance that it is included in the target blacklist or the target whitelist, therefore, when the first UE is included in the target blacklist, the first UE will still send a connection establishment request to the backpack base station until the first UE is refused to establish a connection with the backpack base station, and the first UE will know that it is included in the target blacklist. In order to prevent the UE in the blacklist from sending a connection establishment request to the backpack base station, the backpack base station can send the target blacklist to the UE in the target blacklist after obtaining the target blacklist. Next, the method for the backpack base station to send the target blacklist to the UE in the target blacklist after obtaining the target blacklist is described in detail.

[0222] In a possible embodiment, after the backpack base station obtains the target black and white list in S100, the method for applying the black and white list under the backpack base station also includes: the backpack base station sends a target message to the fifth UE so that the fifth UE that receives the target message stores the content of the target message.

[0223] Among them, the fifth UE is the second UE and / or the third UE, and the target message includes a target blacklist and whitelist; when the fifth UE is the second UE and the fifth UE stores the target blacklist and whitelist, the fifth UE does not request the service corresponding to the fifth UE in the target blacklist from the backpack base station.

[0224] In one embodiment of the present application, the backpack base station sends a target message to the fifth UE via broadcasting, so that the fifth UE that receives the target message stores the content of the target message.

[0225] The backpack base station may use a system information block (SIB) notification or a multimedia broadcast multicast services (MBMS) to broadcast the target message to the fifth UE.

[0226] It should be noted that SIB is a message used to broadcast system information in a wireless communication system. SIB is broadcast regularly by backpack base stations and contains various network parameters and configuration information. In actual use, the backpack base station can embed the target blacklist and whitelist into the SIB and send it to all UEs on the target blacklist and whitelist within the coverage area of ​​the backpack base station by broadcasting.

[0227] MBMS is a technology used to efficiently transmit multimedia content in mobile networks. It supports multi-point transmission and can send the same content to multiple UEs at the same time. In actual use, the backpack base station can embed the target blacklist and whitelist information into the MBMS message and send it to all UEs on the target blacklist and whitelist within the coverage area of ​​the backpack base station through multicast.

[0228] The fifth UE is any UE in the target black and white list, and the target message includes the target black and white list.

[0229] It should be noted that the backpack base station broadcasts the target blacklist and whitelist periodically within a preset time period to ensure that all UEs within the coverage of the backpack base station can obtain the latest target blacklist and whitelist in a timely manner. After exceeding the preset time period, when the backpack base station determines that most of the UEs within its coverage have received the target blacklist and whitelist information, the backpack base station can stop broadcasting to save wireless resources and reduce power consumption.

[0230] It should be noted that, when the blacklist and whitelist information of any UE in the target blacklist is updated, the backpack base station can send the updated target blacklist and whitelist by broadcasting.

[0231] In an embodiment of the present application, the target black and white list is broadcast to UEs within the coverage of the backpack base station through SIB notification or MBMS notification, and the notification is stopped after a period of time to save wireless resources and energy consumption of the backpack base station, thereby improving resource utilization efficiency, extending the operating time of the backpack base station, and ensuring the effective communication of the target black and white list.

[0232] In another embodiment of the present application, the backpack base station can send a target message to the fifth UE through Sf1 to Sf3, so that the fifth UE receiving the target message stores the content of the target message. Sf1 to Sf3 are described in detail below.

[0233] Sf1. The backpack base station sends a second paging message to the fifth UE.

[0234] The fifth UE is any UE in the target black and white list; the second paging message includes the address information of the backpack base station and the paging reason of the second paging message.

[0235] It should be noted that the paging reason of the second paging message is target blacklist and whitelist notification.

[0236] Sf2. The backpack base station receives the fourth request sent by the fifth UE.

[0237] Among them, the fourth request is used to request the backpack base station to send a target black and white list to the fifth UE; the fourth request carries the first identification information of the fifth UE.

[0238] It should be noted that, by carrying the first identification information of the fifth UE in the fourth request, the backpack base station can send the corresponding black and white list information to the fifth UE based on the first identification information of the fifth UE.

[0239] Sf3. The backpack base station sends the blacklist and whitelist information of the fifth UE to the fifth UE based on the first identification information of the fifth UE.

[0240] It should be noted that after receiving the fourth request sent by the fifth UE, the backpack base station sends the target black and white list to the fifth UE based on the first identification information of the fifth UE carried in the fourth request, so that the fifth UE obtains the target black and white list.

[0241] It should be noted that, when the blacklist and whitelist information of any UE in the target blacklist and whitelist of the backpack base station is updated, the backpack base station resends the updated target blacklist and whitelist to all UEs in the updated target blacklist and whitelist, so that the UE stores the updated target blacklist and whitelist. The method for the backpack base station to resend the updated target blacklist and whitelist to the UE is similar to the method described in Sf1 to Sf3 above, and this embodiment will not be repeated here.

[0242] In an embodiment of the present application, by sending a second paging message containing a backpack base station address and a paging reason to the UE in the target black and white list, receiving and processing a fourth request sent by the UE, and sending the target black and white list to the UE based on the first identification information of the UE carried in the fourth request, the UE is dynamically acquired of the target black and white list, thereby improving the management efficiency and service quality of the communication system.

[0243] Figure 5 This is a schematic diagram of the structure of a communication system provided in an embodiment of the present application. Figure 5 As shown, the communication system includes a backpack base station 51, a first UE 52 and a core network control plane network element 53 which are communicatively connected to each other, wherein the backpack base station 51 is communicatively connected to the core network control plane network element 53 via a satellite, when the communication system is a 4G communication system, the core network control plane network element 53 is an MME, and when the communication system is a 5G communication system, the core network control plane network element 53 is an AMF.

[0244] The backpack base station 51 may include a transceiver module 511, a processing module 512 and a storage module 513, wherein the transceiver module 511, the processing module 512 and the storage module 513 are communicatively connected to each other, for example, via a bus connection, and the backpack base station 51 is used to implement the steps performed by the backpack base station in the above-mentioned method embodiment for applying a black and white list under a backpack base station.

[0245] In this article, the bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, or an Extended Industry Standard Architecture (EISA) bus, etc. The bus system can be divided into an address bus, a data bus, a control bus, etc.

[0246] The transceiver module 511 is used to receive a connection establishment request sent by a first user equipment UE, where the connection establishment request is used to request to establish a connection with a backpack base station; wherein the connection establishment request includes the first identification information of the first UE and a connection reason; the connection reason is used to indicate a target service requested by the first UE.

[0247] Processing module 512 is used to query in the target black and white list based on the first identification information of the first UE and the connection reason of the first UE to obtain a first query result; wherein, the target black and white list includes a target black list and / or a target white list, the target black list includes the identification information of at least one second UE and the service corresponding to each second UE, and when the second UE requests the corresponding service, the second UE is not allowed to establish a connection with the backpack base station; the target white list includes the identification information of at least one third UE and the service corresponding to each third UE, and when the third UE requests the corresponding service, the third UE is allowed to establish a connection with the backpack base station.

[0248] The processing module 512 is further configured to determine whether to allow the first UE to establish a connection with the backpack base station based on the first query result.

[0249] Among them, the functions and implementation methods of the transceiver module 511 can refer to the receiving, sending and forwarding process of the backpack base station in the above-mentioned method embodiment of applying the black and white list under the backpack base station, and will not be repeated here.

[0250] The function and implementation of the processing module 512 can refer to the processing process of the backpack base station in the above-mentioned method embodiment of applying the black and white list in the backpack base station, and will not be repeated here.

[0251] Figure 6 This is a schematic diagram of the structure of a communication device provided in this embodiment. Figure 6 As shown, the communication device includes: a transceiver 610, a processor 620 and a memory 630, and these components can communicate with each other via one or more communication buses / signal lines.

[0252] Understandably, Figure 6 The structure shown is for illustration only. The communication device may also include Figure 6 More or fewer components as shown, or with Figure 6 Different configurations shown. Figure 6 Each component shown in the figure can be implemented by hardware, software or a combination thereof.

[0253] In an embodiment of the present application, the transceiver 610 may be a radio frequency module for receiving and sending electromagnetic waves, realizing the mutual conversion between electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices. The transceiver 610 may include various existing circuit elements for performing these functions, for example, antennas, radio frequency transceivers, digital signal processors, encryption / decryption chips, subscriber identity modules (Subscriber Identity Module, SIM) cards, memories, and the like. The transceiver 610 may communicate with various networks such as the Internet, corporate intranets, wireless networks, or communicate with other devices via wireless networks. The above-mentioned wireless networks may include cellular telephone networks, wireless local area networks, or metropolitan area networks. The above-mentioned wireless networks may use various communication standards, protocols, and technologies, including but not limited to 3G communication networks, 4G communication networks, 5G communication networks, next-generation communication networks, other protocols for email, instant messaging, and short messages, and any other suitable communication protocols, and may even include those that have not yet been developed.

[0254] The processor 620 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor, or other data processing chip. The processor 620 may also be other general-purpose processors, digital signal processors (DSP), application-specific integrated circuits (ASIC), field-programmable gate arrays (FPGA) or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. A general-purpose processor may be a microprocessor or the processor may also be any conventional processor, such as a single-chip microcomputer, etc.

[0255] The memory 630 includes at least one type of readable storage medium, and the readable storage medium includes a non-volatile memory (non-volatile memory) or a volatile memory, for example, a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a random access memory (random access memory, RAM), a read-only memory (read-only memory, ROM), an erasable programmable read-only memory (erasable programmable read-only memory, EPROM), an electrically erasable programmable read-only memory (electrically erasable programmable read-only memory, EEPROM), a programmable read-only memory (programmable read-only memory, PROM), a magnetic memory, a magnetic disk, an optical disk, etc., and the RAM may include a static RAM or a dynamic RAM.

[0256] In some embodiments, the memory 630 may be an internal storage unit of the communication device, for example, a hard disk or memory of the communication device. In other embodiments, the memory 630 may also be an external storage device of the communication device, such as a plug-in hard disk, a smart memory card (Smart Media Card, SMC), a secure digital (SecureDigital, SD) card or a flash card (Flash Card) equipped on the communication device. Of course, the memory 630 may also include both the internal storage unit of the communication device and its external storage device. In this embodiment, the memory 630 is generally used to store the operating system and various application software installed in the communication device, such as the program code of the method of applying the black and white list under the backpack base station in the above method embodiment. In addition, the memory 630 may also be used to temporarily store various types of data that have been output or are to be output.

[0257] The communication device of this embodiment may be a part of a backpack base station, for example, a chip or circuit of the backpack base station.

[0258] The transceiver 610 is used to receive a connection establishment request sent by a first user equipment UE, where the connection establishment request is used to request to establish a connection with a backpack base station; wherein the connection establishment request includes the first identification information of the first UE and a connection reason; the connection reason is used to indicate a target service requested by the first UE.

[0259] Processor 620 is used to query in the target black and white list based on the first identification information of the first UE and the connection reason of the first UE to obtain a first query result; wherein the target black and white list includes a target black list and / or a target white list, the target black list includes the identification information of at least one second UE and the service corresponding to each second UE, and when the second UE requests the corresponding service, the second UE is not allowed to establish a connection with the backpack base station; the target white list includes the identification information of at least one third UE and the service corresponding to each third UE, and when the third UE requests the corresponding service, the third UE is allowed to establish a connection with the backpack base station.

[0260] The processor 620 is further configured to determine, based on the first query result, whether to allow the first UE to establish a connection with the backpack base station.

[0261] Among them, the function and implementation method of the transceiver 610 can refer to the receiving, sending and forwarding process of the backpack base station in the above-mentioned method embodiment of applying the black and white list under the backpack base station, and will not be repeated here.

[0262] The functions and implementation methods of the processor 620 may refer to the processing process of the backpack base station in the above-mentioned method embodiment of applying the black and white list in the backpack base station, and will not be described in detail here.

[0263] Another embodiment of the present application also provides a computer-readable medium, which may be a computer-readable signal medium or a computer-readable medium. A processor in a computer reads a computer-readable program code stored in the computer-readable medium, so that the processor can execute the functional actions specified in each step or combination of steps performed by the backpack base station in the above-mentioned method embodiment for applying a black and white list under a backpack base station; and generate a device for implementing the functional actions specified in each block or combination of blocks in the block diagram.

[0264] Computer-readable media include but are not limited to electronic, magnetic, optical, electromagnetic, infrared memory or semiconductor systems, devices or apparatuses, or any appropriate combination of the foregoing, the memory is used to store program codes or instructions, the program codes include computer operation instructions, and the processor is used to execute the program codes or instructions of the communication method of the method embodiment of applying the black and white lists under the backpack base station stored in the memory.

[0265] The definitions of the memory and the processor may refer to the description of the aforementioned communication device embodiment and will not be repeated here.

[0266] In the various embodiments of the present application, unless otherwise specified or provided for in any logical conflict, the terms and / or descriptions between the different embodiments are consistent and may be referenced to each other, and the technical features in the different embodiments may be combined to form new embodiments according to their inherent logical relationships.

[0267] In another implementation, all or part of the functions of the communication device can be implemented by SoC technology, for example, by a chip. The chip integrates a core and an input / output interface, etc. The input / output interface can implement the functions of the above-mentioned transceiver module, such as performing processing after receiving a random access request in the form of a baseband signal, and sending a random access response in the form of a baseband signal; the core can implement the processing function. The functions of the core and the input / output interface can be implemented by hardware, or by hardware executing corresponding software. The above-mentioned hardware or software includes one or more modules corresponding to the above-mentioned functions. In another embodiment, the input / output port can also be a port connecting the chip to a circuit, device or equipment outside the chip, which is used to output the random access request generated by the chip to the circuit, device or equipment connected to it, or to receive a random access response provided by the circuit, device or equipment connected to it.

[0268] Those of ordinary skill in the art will appreciate that the units and algorithm steps of each example described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are performed in hardware or software depends on the specific application and implementation constraints of the technical solution. Professional and technical personnel can use different methods to implement the described functions for each specific application, but such implementation should not be considered to be beyond the scope of this application.

[0269] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0270] In the several embodiments provided in the present application, it should be understood that the disclosed systems, devices and methods can be implemented in other ways. For example, the device embodiments described above are only schematic. For example, the division of the above units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some interfaces, indirect coupling or communication connection of devices or units, which can be electrical, mechanical or other forms.

[0271] The units described above as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0272] In addition, each functional unit in each embodiment of the present application may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.

[0273] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware or any combination thereof. When implemented by software, it can be implemented in whole or in part in the form of a computer program product. The above computer program product includes one or more computer instructions. When the above computer program instructions are loaded and executed on a computer or processor, the above process or function according to the embodiment of the present invention is generated in whole or in part. The above computer can be a general-purpose computer, a special-purpose computer, a computer network, a network device, a server, or other programmable device. The above computer instructions can be stored in a computer-readable storage medium or transmitted through the above computer-readable storage medium. The above computer instructions can be transmitted from a website site, a computer, a server or a data center to another website site, a computer, a server or a data center by wired (e.g., coaxial cable, optical fiber, digital subscriber line (digital subscriber line, DSL)) or wireless (e.g., infrared, wireless, microwave, etc.) mode. The above computer-readable storage medium can be any available medium that can be accessed by a computer or a data storage device such as a server or a data center that includes one or more available media integrations. The available medium may be a magnetic medium (eg, a floppy disk, a hard disk, a magnetic tape), an optical medium (eg, a digital versatile disc (DVD)), or a semiconductor medium (eg, a solid state disk (SSD)).

[0274] The above description is only a specific implementation of the present application, so that those skilled in the art can understand or implement the present application. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein can be implemented in other embodiments without departing from the spirit or scope of the present application. Therefore, the present application will not be limited to the embodiments described herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A method for applying a blacklist and whitelist in a backpack base station, characterized in that: The method comprises: Receiving a connection establishment request sent by a first user equipment UE, where the connection establishment request is used to request to establish a connection with a backpack base station; wherein the connection establishment request includes first identification information of the first UE and a connection reason; and the connection reason is used to indicate a target service requested by the first UE; Based on the first identification information of the first UE and the connection reason of the first UE, a query is performed in the target black and white list to obtain a first query result; wherein the target black and white list includes a target black list and / or a target white list, the target black list includes the identification information of at least one second UE and the service corresponding to each of the second UEs, and when the second UE requests the corresponding service, the second UE is not allowed to establish a connection with the backpack base station; the target white list includes the identification information of at least one third UE and the service corresponding to each of the third UEs, and when the third UE requests the corresponding service, the third UE is allowed to establish a connection with the backpack base station; Based on the first query result, determine whether to allow the first UE to establish a connection with the backpack base station.

2. The method according to claim 1, characterized in that Before receiving the connection establishment request sent by the first user equipment UE, the method further includes: Obtain the target blacklist and whitelist.

3. The method according to claim 2, characterized in that The obtaining of the target blacklist and whitelist comprises: In response to a first input operation of the user, the target black and white list is obtained; wherein the first input operation carries the target black and white list; the identification information of the second UE in the target black list is the number of the user identification SIM card used by the second UE, and the identification information of the third UE in the target white list is the number of the SIM card used by the third UE; The querying in the target blacklist and whitelist based on the first identification information of the first UE and the connection reason of the first UE to obtain the first query result includes: Sending a first request to a core network control plane network element, where the first request is used to request the core network control plane network element to process the first identification information of the first UE to obtain the second identification information of the first UE; wherein the first request includes the first identification information of the first UE, and the first identification information of the first UE is a service temporary mobile user identity S-TMSI of the first UE; receiving a first response sent by the core network control plane network element, and obtaining second identification information of the first UE based on the first response; wherein the second identification information of the first UE is a number of a SIM card used by the first UE; Based on the second identification information of the first UE and the connection reason of the first UE, a query is performed in the target black and white list to obtain a first query result.

4. The method according to claim 2, characterized in that: The obtaining of the target blacklist and whitelist comprises: In response to a second input operation of the user, a first black and white list is obtained; wherein the second input operation carries the first black and white list; the first black and white list includes a first black list and / or a first white list, the first black list includes identification information of the at least one second UE and a service corresponding to each second UE, and the identification information of the second UE in the first black list is the number of a SIM card used by the second UE; the first white list includes identification information of the at least one third UE and a service corresponding to each third UE; the identification information of the second UE in the first white list is the number of a SIM card used by the second UE; Sending a second request to a core network control plane network element, wherein the second request is used to request the core network control plane network element to process the first black and white list to obtain the target black and white list, and send the target black and white list to the backpack base station; wherein the second request includes the first black and white list; Receive a second response sent by the core network control plane network element, and obtain the target blacklist and whitelist based on the second response; wherein the identification information of the second UE in the target blacklist is the S-TMSI of the second UE, and the identification information of the third UE in the target whitelist is the S-TMSI of the third UE.

5. The method according to claim 2, characterized in that: The obtaining of the target blacklist and whitelist comprises: Send a third request to the core network control plane network element, the third request is used to request the core network control plane network element to determine the target black and white list based on the second black and white list, and send the target black and white list to the backpack base station; wherein the third request includes the geographic location information and the first coverage range information of the backpack base station; the second black and white list includes the black and white list information of the fourth UE within the second coverage range; the second coverage range is greater than the first coverage range; the second UE and / or the third UE in the target black and white list is the fourth UE in the second black and white list located within the first coverage range; Receive a third response sent by the core network control plane network element, and obtain the target blacklist and whitelist based on the third response; wherein the identification information of the second UE in the target blacklist is the S-TMSI of the second UE, and the identification information of the third UE in the target whitelist is the S-TMSI of the third UE.

6. The method according to claim 1, characterized in that In a case where the target blacklist and whitelist include the target blacklist and the whitelist, querying the target blacklist and whitelist based on the first identification information of the first UE and the connection reason of the first UE to obtain a first query result includes: Based on the first identification information of the first UE and the connection reason of the first UE, query the target blacklist and the target whitelist to determine whether the first identification information of the first UE exists in the target service of the target blacklist and / or the target whitelist; In a case where the first identification information of the first UE exists in the target service of the target blacklist, obtaining the first query result; wherein the first query result is used to indicate that the first UE is refused to establish a connection with the backpack base station; In a case where the first identification information of the first UE exists in the target service of the target whitelist, obtaining the first query result; wherein the first query result is used to indicate that the first UE is allowed to establish a connection with the backpack base station; In a case where the first identification information of the first UE does not exist in the target services of the target blacklist and the target whitelist, the first query result is obtained; wherein, the first query result indicates whether to allow the first UE to establish a connection with the backpack base station based on the current network capacity of the backpack base station; in a case where the current network capacity is less than the preset network capacity, the first query result is used to indicate that the first UE is allowed to establish a connection with the backpack base station; in a case where the current network capacity is greater than or equal to the preset network capacity, the first query result is used to indicate that the first UE is denied to establish a connection with the backpack base station.

7. The method according to claim 1, characterized in that Before the first UE performs a called service as a called UE, the method further includes: Receive a first paging message sent by a core network control plane network element, and forward the first paging message to the first UE; wherein the first paging message is sent by the core network control plane network element to the backpack base station under preset conditions, and the preset condition is that the first identification information of the first UE does not exist in the called service of the target blacklist, and the first paging message includes the first identification information of the first UE and the paging reason of the first paging message.

8. The method according to claim 2, characterized in that: After obtaining the target blacklist and whitelist, the method further includes: A target message is sent to the fifth UE so that the fifth UE receiving the target message stores the content of the target message; wherein the fifth UE is the second UE or the third UE, and the target message includes the target blacklist and whitelist; when the fifth UE is the second UE and the fifth UE stores the target blacklist and whitelist, the fifth UE does not request the service corresponding to the fifth UE in the target blacklist from the backpack base station.

9. A backpack base station, characterized in that: include: Memory and processor; The memory is configured to store computer program instructions; The processor is configured to execute the computer program instructions so that the backpack base station implements the method according to any one of claims 1 to 8.

10. A communication system, characterized in that: include: A core network control plane network element and the backpack base station as claimed in claim 9, wherein the core network control plane network element is communicatively connected with the backpack base station.

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