Network access method, apparatus, communication device, storage medium, and program product

Abstract

The present application relates to a network access method, an apparatus, a communication device, a storage medium, and a program product. The method comprises: broadcasting access indication information of a PLMN within the network coverage of a base station, wherein the access indication information is used for indicating a user equipment which is allowed by the PLMN to access the base station within the network coverage of the base station.

Description

Network access method, device, communication equipment, storage medium and program product

[0001] Related applications

[0002] This application claims priority to Chinese patent application number 2024103903757, filed on April 2, 2024, entitled “Network access method, device, communication equipment, storage medium and program product”, the entire text of which is hereby incorporated by reference. Technical Field

[0003] The present application relates to the field of communication technology, and in particular to a network access method, apparatus, communication equipment, storage medium, and program product. Background Art

[0004] In the field of communications, indirect network sharing architecture means that the main operator and participating operators share the same base station, enabling one base station to provide communication services to user equipment (UE) of multiple operators.

[0005] Taking a UE participating in an operator's service under a base station as an example, in related technologies, the UE responds to the base station's broadcast of the operator's Public Land Mobile Network (PLMN) information and initiates an access request to the base station, requesting access to the operator's service network. If the operator's service network denies the UE's access, the UE's access request becomes invalid, resulting in a waste of air interface resources.

[0006] Summary of the Invention

[0007] Embodiments of the present application provide a network access method, apparatus, communication device, storage medium, and program product.

[0008] In a first aspect, an embodiment of the present application provides a network access method, applied to a base station, the method comprising:

[0009] Broadcast access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0010] In one embodiment, the PLMN is a first PLMN and / or a second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0011] In one embodiment, broadcasting access indication information of a PLMN within a network coverage area of ​​a base station includes:

[0012] The cell selection information is broadcast within the network coverage of the base station; the cell selection information includes access indication information.

[0013] In one embodiment, broadcasting cell selection information within a network coverage area of ​​a base station includes:

[0014] Broadcast system broadcast information within the network coverage of the base station; the system broadcast information includes cell selection information.

[0015] In one embodiment, the access indication information includes at least one of the following:

[0016] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0017] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0018] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0019] In a second aspect, an embodiment of the present application provides a network access method, applied to a user equipment, the method comprising:

[0020] The receiving base station broadcasts access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0021] In one embodiment, the PLMN is a first PLMN and / or a second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0022] In one embodiment, receiving access indication information of a PLMN broadcast by a base station within a network coverage area of ​​the base station includes:

[0023] Receive cell selection information broadcast by a base station within a network coverage area of ​​the base station; the cell selection information includes access indication information.

[0024] In one embodiment, receiving cell selection information broadcast by a base station within a network coverage area of ​​the base station includes:

[0025] Receive system broadcast information broadcast by a base station within the network coverage of the base station; the system broadcast information includes cell selection information.

[0026] In one embodiment, the access indication information includes at least one of the following:

[0027] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0028] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0029] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0030] In one embodiment, the method further comprises:

[0031] When the access indication information of the PLMN does not match the subscription information of the user equipment, no access request is initiated to the base station.

[0032] In one embodiment, the subscription information includes a home PLMN and an equivalent home PLMN list of the user equipment; and the mismatch between the PLMN access indication information and the subscription information of the user equipment includes at least one of the following:

[0033] The PLMN is a second PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0034] The PLMN is reserved for subscribers of the PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0035] The home PLMN of the user equipment is not in the user's PLMN list of accessible PLMNs.

[0036] In one embodiment, the subscription information includes a registered PLMN list of the user equipment; the method further includes:

[0037] When the PLMN is in the registered PLMN list, remove the PLMN from the registered PLMN list.

[0038] In one embodiment, the method further comprises:

[0039] In response to the access indication information of the PLMN broadcasted by other base stations, an access request is initiated to the other base stations; the other base stations are base stations of a different communication standard from the base station.

[0040] In a third aspect, an embodiment of the present application further provides a network access device, the device comprising:

[0041] The information broadcast module is used to broadcast the access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0042] In a fourth aspect, an embodiment of the present application further provides a network access device, the device comprising:

[0043] The information receiving module is used to receive access indication information of the PLMN broadcast by the base station within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0044] In a fifth aspect, an embodiment of the present application further provides a communication device, including: a transmitter,

[0045] The transmitter is used to broadcast access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0046] In a sixth aspect, an embodiment of the present application further provides a communication device, comprising: a receiver,

[0047] The receiver is used to receive access indication information of the PLMN broadcast by the base station within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0048] In a seventh aspect, the present application provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of the method in any one of the embodiments of the first to second aspects above.

[0049] In an eighth aspect, the present application provides a computer program product, comprising a computer program, which, when executed by a processor, implements the steps of the method in any one of the embodiments of the first to second aspects above.

[0050] The details of one or more embodiments of the present application are set forth in the accompanying drawings and the description below. Other features, objects, and advantages of the present application will become apparent from the description, drawings, and claims. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the conventional technology, the following briefly introduces the drawings required for use in the embodiments or the conventional technology descriptions. Obviously, the drawings described below are merely embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the disclosed drawings without any creative work.

[0052] FIG1 is an application environment diagram of a network access method according to an embodiment;

[0053] FIG2 is a schematic diagram of a flow chart of a network access method in one embodiment;

[0054] FIG3 is a schematic diagram of a flow chart of a network access method in another embodiment;

[0055] FIG4 is a schematic diagram of signaling interaction of a network access method in one embodiment;

[0056] FIG5 is a schematic diagram of signaling interaction of a network access method according to another embodiment;

[0057] FIG6 is a structural block diagram of a network access device according to an embodiment;

[0058] FIG7 is a structural block diagram of a network access device in another embodiment;

[0059] FIG8 is a diagram showing the internal structure of an access network device according to an embodiment;

[0060] FIG9 is a diagram showing the internal structure of a terminal device in one embodiment. DETAILED DESCRIPTION

[0061] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0062] Before describing the embodiments of the present application, the technical background of the embodiments of the present application will be described first.

[0063] In the field of communications, in order to improve network performance, the substantial increase in base station density has brought considerable challenges to base station deployment. To address the above issues, the 3rd Generation Partnership Project (3GPP) proposed the concept of a network sharing architecture.

[0064] Network sharing means that multiple operators share the same base station, such as a fifth-generation mobile communication technology (5G) base station, enabling one base station to provide communication services to user equipment (UE) of multiple operators.

[0065] In 5G network sharing scenarios, the interconnection between shared base stations and two or more core networks generates a large number of network interfaces (N2 / N3). Maintaining these cross-operator interfaces is a major challenge for operators.

[0066] For the above considerations, 3GPP R19 introduced a new network sharing mode, namely the indirect network sharing architecture, as shown in Figure 1. Figure 1 is a schematic diagram of the indirect network sharing architecture based on inter-network roaming.

[0067] Continuing with the example of a 5G base station, in Figure 1, multiple operators share the same 5G base station, but the 5G base station is only connected to the core network element of the primary operator of the shared base station (the owner of the shared base station). The core network element of the primary operator is connected to the core network elements of other operators participating in the base station sharing (participants in the shared base station) to provide services to other UEs.

[0068] Continuing with Figure 1, in an indirect network sharing scenario, a shared base station can only connect to the core network elements of the primary operator (Operation, OP) of the shared network, namely the first operator (OP1). The core network elements of the participating operator, namely the second operator (OP2), connect to the shared base station through the core network elements of OP1. The third operator (OP3) is the operator that has a roaming agreement with the second operator, meaning that the third operator's UEs can be considered roaming UEs of the second operator.

[0069] In related technologies, in the scenario of indirect network sharing, multiple operators are divided into a main operator and participating operators. The shared base station is connected to the core network element of the main operator OP1, and the core network element of OP1 is connected to the core network element of the participating operator OP2 to provide services for the contracted UEs of OP2.

[0070] In this scenario, although the shared base station broadcasts both OP1's and OP2's PLMN information, OP2 can only provide network services for its own contracted UEs and cannot provide services to any roaming UEs, that is, UEs of third operators. Therefore, OP2's roaming UEs cannot access the network through OP2, that is, the base station cannot process network access requests from OP2's roaming UEs.

[0071] However, under the specifications and implementation of the protocols in the relevant technology, a roaming UE participating in the operator OP2 receives the PLMN information of OP2 broadcast by the base station and still initiates random access to the base station, that is, initiates a series of processes such as RRC connection establishment request and registration request. However, since OP2 can only provide services for contracted UEs, the roaming UE cannot access the network. The access attempt is an invalid attempt, resulting in a waste of air interface resources, increasing the service connection delay, and affecting the user experience.

[0072] Based on this, an embodiment of the present application provides a network access method, which broadcasts the access indication information of the PLMN within the network coverage of the base station, so that the roaming UEs participating in the operator within the network coverage area no longer initiate invalid access requests to the base station after receiving the access indication information of each PLMN, thereby avoiding the waste of air interface resources to a certain extent.

[0073] It should be noted that the beneficial effects or technical problems solved by the embodiments of the present application are not limited to this one, but may also include other implicit or related problems. For details, please refer to the description of the following embodiments.

[0074] The following specific embodiments describe in detail the technical solution of the present application and how the technical solution of the present application solves the above-mentioned technical problems. The following specific embodiments can be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described below in conjunction with the accompanying drawings.

[0075] In one embodiment, as shown in FIG2 , a network access method is provided, which is applied to a base station. The method includes:

[0076] S201, broadcasting access indication information of a PLMN within the network coverage of a base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0077] In the embodiment of the present application, the base station is a shared base station in an indirect network sharing architecture, that is, the public land mobile networks (PLMNs) of multiple operators may coexist within the network coverage of the base station, providing services for some UEs of multiple operators.

[0078] Among them, PLMN is a network established and operated by the government or its approved operators for the purpose of providing land mobile communication services to the public.

[0079] In actual scenarios, the network coverage of the shared base station includes PLMNs of at least two operators, and the shared base station is directly connected to the PLMN of one of the operators.

[0080] Taking the base station as a 5G base station, and the indirect network sharing scenario including the first PLMN of the main operator OP1 and the second PLMN of the participating operator OP2 as an example, the base station is connected to the core network element of the first PLMN, which can provide communication services for the UE of the main operator OP1, and the core network element of the main operator OP1 is connected to the core network element of the participating operator OP2, which means that the base station can provide communication services for the contracted UE of OP2, but cannot provide communication services for the roaming UE of OP2.

[0081] Then, considering that the base station broadcasts the PLMN information of OP1 and the PLMN information of OP2 at the same time, the roaming UE of OP2 will randomly initiate a network access request to the base station, but the base station cannot provide communication services for the UE, resulting in the UE possibly initiating an invalid access request. In this embodiment of the present application, it is proposed that the base station broadcasts the PLMN information of OP1 and the PLMN information of OP2 at the same time. It also broadcasts the access indication information of each PLMN separately for different PLMNs to inform the UEs of each PLMN within the network coverage area which PLMNs the base station supports processing the access requests of UEs under, and which PLMNs the base station does not support processing the access requests of UEs under.

[0082] Each PLMN corresponds to a cell access indication information. For any PLMN, the corresponding cell access indication information may include whether the PLMN is a participating PLMN, a list of users accessible to the PLMN, and the like.

[0083] In this way, after the UE of each PLMN receives the access indication information of the PLMN to which it belongs, it will not blindly initiate an access request to the base station, especially the roaming UE of the participating operator within the network coverage area. If it is determined that the base station cannot process the network access request of the roaming UE of the operator to which it belongs, it will no longer initiate an invalid access request, thereby avoiding waste of air interface resources.

[0084] In the embodiment of the present application, regarding the broadcast form of the PLMN access indication information, the base station can broadcast the PLMN access indication information separately, or it can encapsulate the PLMN access indication information in the existing broadcast information for broadcasting, and the embodiment of the present application does not impose any restrictions on this.

[0085] Regarding the base station's broadcast frequency, considering the randomness of UEs entering the network coverage area, to minimize the UE's initiation of invalid requests, the base station can broadcast the PLMN access indication information in real time. Of course, the base station can also broadcast the PLMN access indication information according to a preset period to reduce the base station's communication burden.

[0086] In an embodiment of the present application, access indication information of the PLMN is broadcast within the network coverage of the base station. The access indication information is used to indicate that the PLMN allows UEs to access the base station within the network coverage of the base station. In this method, the base station broadcasts the access indication information of the PLMN to the UEs within the network coverage, which is equivalent to the base station informing the UEs of which PLMNs it can handle access requests from UEs, and which PLMNs it cannot handle access requests from UEs. In this way, the UE can determine whether the base station supports processing its own access request based on the access indication information. Naturally, when it is learned that the base station cannot process the access request of the UE, in order to avoid initiating an invalid access request, it will not initiate an access request to the base station, thereby avoiding the waste of air interface resources.

[0087] As can be seen from the above embodiments, the network coverage of the shared base station includes PLMNs of at least two operators, and the shared base station is directly connected to the PLMN of one of the operators. Based on this, the connection relationship between the shared base station and each PLMN is described below through an embodiment.

[0088] In an exemplary embodiment, the PLMN is a first PLMN and / or a second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0089] Taking the example where the network coverage of the base station includes both the first PLMN and the second PLMN, and the first PLMN is the main operator network of the base station, the base station is connected to the core network element of the first PLMN, and the core network element of the second PLMN is connected to the core network element of the first PLMN, that is, the base station is connected to the core network element of the second PLMN through the core network element of the first PLMN.

[0090] In this case, the base station may broadcast the access indication information of the first PLMN, may broadcast the access indication information of the second PLMN, or may broadcast the access indication information of the first PLMN and the access indication information of the second PLMN simultaneously.

[0091] It should be emphasized that, on the basis that the network coverage of the shared base station includes the primary operator network (the first PLMN in the embodiment of the present application), the participating operator network may include other participating operator networks in addition to the second PLMN, such as a third PLMN, etc. In this case, the base station may broadcast access indication information of each PLMN within the network coverage.

[0092] In an embodiment of the present application, when the first PLMN and the second PLMN are included in the coverage of the base station network, the base station is connected to the core network element of the first PLMN, and is connected to the core network element of the second PLMN through the core network element of the first PLMN. In this way, the base station only needs to be connected to the core network element of the first PLMN, without the need to cross the operation and directly connect to the second PLMN. Naturally, the network interface generated by the interconnection between the base station and the second PLMN will not be generated, thereby reducing the interface operation and maintenance burden of the operator. At the same time, the base station can also provide services for UEs of the first PLMN and the second PLMN.

[0093] The aforementioned embodiment does not limit the broadcasting method of the PLMN access indication information, which means that the base station can broadcast it through various broadcast forms, carriers, and encapsulation methods. Based on this, the following describes a possible implementation method for the base station to broadcast the PLMN access indication information.

[0094] In one embodiment, broadcasting PLMN access indication information within the network coverage of the base station includes:

[0095] The cell selection information is broadcast within the network coverage of the base station; the cell selection information includes access indication information.

[0096] The "cell" in the cell selection information refers to the area covered by a base station or a part of a base station (sector antenna) in a cellular mobile communication system. UEs within this area can reliably communicate with the base station through a wireless channel. Furthermore, the cell selection information is used to instruct UEs within the network coverage area to select the network of the corresponding operator and access the network. Furthermore, the cell selection information is used to instruct UEs within the network coverage area to select the network of the corresponding operator and access the network.

[0097] In the embodiment of the present application, regarding the broadcast form of the cell selection information, the base station may broadcast the cell selection information separately, or may further encapsulate the cell selection information and broadcast the encapsulated cell selection information. This embodiment of the present application does not impose any restrictions on this.

[0098] Regarding the frequency of cell selection information broadcast, considering the randomness of UEs entering network coverage, to minimize invalid UE requests, the base station can broadcast cell selection information in real time. Of course, the base station can also broadcast cell selection information at a preset period to reduce the base station's communication burden.

[0099] In an embodiment of the present application, the base station encapsulates the access indication information of the PLMN into the cell selection information and broadcasts it, so that before the UE of each PLMN within the network coverage area accesses the network, it can combine the cell selection information to determine whether the base station can process its own network access request, thereby avoiding initiating invalid access requests.

[0100] In one embodiment, broadcasting cell selection information within the network coverage of a base station includes:

[0101] Broadcast system broadcast information within the network coverage of the base station; the system broadcast information includes cell selection information.

[0102] The base station carries the cell selection information in the system information block (SIB) information for broadcasting.

[0103] Regarding the frequency of system broadcast information, considering the randomness of UEs entering the network coverage area, to minimize the possibility of UEs initiating invalid requests, the base station can broadcast system broadcast information in real time. Of course, the base station can also broadcast system broadcast information according to a preset period to reduce the communication burden of the base station.

[0104] In an embodiment of the present application, the cell selection information is carried in the system broadcast information for broadcasting to ensure that each UE allowed to access the base station within the network coverage area can receive the cell selection information, thereby avoiding the UE from initiating invalid access requests and thus avoiding resource waste.

[0105] In one embodiment, the access indication information includes at least one of the following:

[0106] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0107] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0108] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0109] In a communication scenario, each PLMN corresponds to a PLMN identity information list (Identity Information List information element), and the identity information list includes access indication information of the PLMN.

[0110] In one scenario, first access indication information, such as participant PLMN, may be added to the PLMN-Identity information List information element. The first access indication information is used to indicate whether the PLMN is the first PLMN, that is, whether the PLMN is the primary operator network corresponding to the base station. Specifically, the indication value corresponding to the first access indication information is yes (true) or no (false). If the first access indication information indicates that the PLMN is the first PLMN, it means that the PLMN is the primary operator network corresponding to the base station; if the first access indication information indicates that the PLMN is not the first PLMN, it means that the PLMN is the participating operator network corresponding to the base station.

[0111] In another scenario, a second access indication information may be added to the PLMN-Identity information List information element, such as cell Reserved For Subscription Users. The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs except the PLMN cannot access it.

[0112] In another scenario, third access indication information, such as a PLMN list (supported PLMN-Identity List), may be added to the PLMN-Identity Information List information element. The third access indication information is used to indicate a list of PLMNs that are accessible to users within the network coverage area. Accordingly, upon receiving the third access indication information, the UE may determine whether its own PLMN is in the PLMN list. If so, it initiates a network access request; otherwise, it does not initiate a network access request.

[0113] It should be noted that the access indication information may include the first access indication information, or the second access indication information, or the third access indication information, or may include any two of the above three types of access indication information, or may include the above three types of access indication information.

[0114] In an embodiment of the present application, in an indirect shared network scenario, the base station's ability to process UEs of the PLMN is characterized by indicating whether the PLMN is a participating operator of the indirect shared network, or indicating a registered user who can access the PLMN, or indicating a list of PLMNs allowed to be accessed, etc., so that when the base station does not have a PLMN that processes the access request, the base station abandons initiating the access request, or when the base station has a PLMN that processes the access request, it initiates a valid access request.

[0115] The above is an explanation of the relevant embodiments on the side where the base station is the execution subject. Based on the same technical concept, the embodiments of the present application also provide an embodiment corresponding to the above process with the UE as the execution subject. Since all the implementation principles and detailed processes of the following embodiments with the UE as the execution subject, as well as the technical effects that can be achieved are the same as those of the above embodiments with the base station as the execution subject, for the sake of brevity and clarity, the following embodiments will not be described one by one. The implementation process and implementation effects of each embodiment can be referred to the description of the aforementioned embodiments.

[0116] The following are embodiments of a network access method performed by a UE.

[0117] In one embodiment, as shown in FIG3 , a network access method is provided, which is applied to a UE. The method includes:

[0118] S301, receiving access indication information of a PLMN broadcast by a base station within the network coverage of the base station; the access indication information is used to indicate that the PLMN allows user equipment to access the base station within the network coverage of the base station.

[0119] The UE can be a UE of any PLMN within the network coverage of the base station. Moreover, UEs of different PLMNs will make different responses to the cell selection information broadcast by the base station.

[0120] Still taking the base station as a 5G base station, and the indirect network sharing scenario including the first PLMN of the main operator OP1 and the second PLMN of the participating operator OP2 as an example, the base station is connected to the core network element of the first PLMN, and can provide communication services for the UE of the main operator OP1, and the core network element of the main operator OP1 is connected to the core network element of the participating operator OP2, which means that the base station can provide communication services for the contracted UE of OP2, but cannot provide communication services for the roaming UE of OP2.

[0121] Exemplarily, the UE is a UE of the first PLMN. The UE receives access indication information of the first PLMN and determines that the base station is connected to the core network element of the first PLMN. The UE then initiates an access request to the base station to access the network of OP1.

[0122] Exemplarily, the UE is a UE of the second PLMN. The UE receives access indication information of the second PLMN and determines that the base station is connected to the core network of the second PLMN through the core network element of the first PLMN. The UEEE initiates an access request to the base station to access the network of OP2.

[0123] For example, the UE is a UE of the third PLMN, and there is a roaming agreement between OP3 and OP2. If the UE determines, based on the access indication information of the second PLMN, that the second PLMN is a participating operator of the base station and registered users of other PLMNs except the second PLMN are not accessible, then when it is known that it cannot access the core network, in order to avoid initiating an invalid access request, it will give up initiating an access request to the base station.

[0124] In an embodiment of the present application, a UE receives access indication information of a PLMN broadcast by a base station within the network coverage of the base station. The access indication information is used to indicate to the PLMN that UEs are allowed to access the base station within the network coverage of the base station. In this method, the UE receives the access indication information of the PLMN broadcast by the base station, and learns the ability of the base station to process access requests of UEs under which PLMNs and the ability of the base station to process access requests of UEs under which PLMNs cannot be processed. On this basis, the UE can determine whether the base station supports processing its own access request based on the access indication information. Naturally, when it is learned that the base station cannot process the access request of the UE, in order to avoid initiating an invalid access request, it will not initiate an access request to the base station, thereby avoiding the waste of air interface resources.

[0125] In one embodiment, the PLMN is the first PLMN and / or the second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0126] Taking the example where the network coverage of the base station includes both the first PLMN and the second PLMN, and the first PLMN is the main operator network of the base station, the base station is connected to the core network element of the first PLMN, and the core network element of the second PLMN is connected to the core network element of the first PLMN, that is, the base station is connected to the core network element of the second PLMN through the core network element of the first PLMN.

[0127] In this case, the base station may broadcast the access indication information of the first PLMN, may broadcast the access indication information of the second PLMN, or may broadcast the access indication information of the first PLMN and the access indication information of the second PLMN simultaneously.

[0128] It should be emphasized that, on the basis that the network coverage of the shared base station includes the primary operator network (the first PLMN in the embodiment of the present application), the participating operator network may include other participating operator networks in addition to the second PLMN, such as a third PLMN, etc. In this case, the base station may broadcast access indication information of each PLMN within the network coverage.

[0129] In an embodiment of the present application, when the first PLMN and the second PLMN are included in the coverage of the base station network, the base station is connected to the core network element of the first PLMN, and is connected to the core network element of the second PLMN through the core network element of the first PLMN. In this way, the base station only needs to be connected to the core network element of the first PLMN, without the need to cross the operation and directly connect to the second PLMN. Naturally, the network interface generated by the interconnection between the base station and the second PLMN will not be generated, thereby reducing the interface operation and maintenance burden of the operator. At the same time, the base station can also provide services for UEs of the first PLMN and the second PLMN.

[0130] The above description of the method for broadcasting PLMN access indication information from the base station is based on the execution entity. On the UE side, the information received by the UE is the same as the content broadcast by the base station. Based on this, the following further describes the method for the UE to receive PLMN access indication information.

[0131] In one embodiment, the receiving base station broadcasts access indication information of the PLMN within the network coverage of the base station, including:

[0132] Receive cell selection information broadcast by a base station within a network coverage area of ​​the base station; the cell selection information includes access indication information.

[0133] In the case where the base station broadcasts the cell selection information encapsulated with the access indication information, the UE receives the cell selection information and can obtain the indication information of the PLMN by decapsulating the cell selection information.

[0134] In an embodiment of the present application, the UE receives the cell selection information broadcast by the base station, and can, before accessing the network, determine whether the base station can process its own network access request based on the cell selection information, thereby avoiding initiating invalid access requests.

[0135] In one embodiment, receiving cell selection information broadcast by a base station within a network coverage area of ​​the base station includes:

[0136] Receive system broadcast information broadcast by a base station within the network coverage of the base station; the system broadcast information includes cell selection information.

[0137] When the base station broadcasts system broadcast information carrying cell selection information, the UE receives the system broadcast information and can parse the system broadcast information to obtain the cell selection information, and further obtain the access indication information of the PLMN in the cell selection information.

[0138] In an embodiment of the present application, the UE receives the cell selection information broadcast by the base station, and can, before accessing the network, determine whether the base station can process its own network access request based on the cell selection information, thereby avoiding initiating invalid access requests.

[0139] In an embodiment of the present application, the UE receives system broadcast information carrying cell selection information to cover all UEs allowed to access the base station within the network range, so that the UE can obtain the access indication information of the PLMN to which it belongs in a timely and accurate manner, thereby improving the effectiveness of the network access request received by the base station.

[0140] In one embodiment, the access indication information includes at least one of the following:

[0141] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0142] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0143] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0144] In a communication scenario, each PLMN corresponds to a PLMN-Identity information List information element, and the identity information list includes access indication information of the PLMN.

[0145] In one scenario, first access indication information, such as participant PLMN, may be added to the PLMN-Identity information List information element. The first access indication information is used to indicate whether the PLMN is the first PLMN, that is, whether the PLMN is the primary operator network corresponding to the base station. Specifically, the indication value corresponding to the first access indication information is yes (true) or no (false). If the first access indication information indicates that the PLMN is the first PLMN, it means that the PLMN is the primary operator network corresponding to the base station; if the first access indication information indicates that the PLMN is not the first PLMN, it means that the PLMN is the participating operator network corresponding to the base station.

[0146] In another scenario, a second access indication information may be added to the PLMN-Identity information List information element, such as cell Reserved For Subscription Users. The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs except the PLMN cannot access it.

[0147] In another scenario, third access indication information, such as a PLMN list (supported PLMN-Identity List), may be added to the PLMN-Identity Information List information element. The third access indication information is used to indicate a list of PLMNs that are accessible to users within the network coverage area. Accordingly, upon receiving the third access indication information, the UE may determine whether its own PLMN is in the PLMN list. If so, it initiates a network access request; otherwise, it does not initiate a network access request.

[0148] It should be noted that the access indication information may include the first access indication information, or the second access indication information, or the third access indication information, or may include any two of the above three types of access indication information, or may include the above three types of access indication information.

[0149] In an embodiment of the present application, in an indirect shared network scenario, the UE can characterize the base station's ability to process the PLMN based on multiple dimensions, such as whether the PLMN is a participating operator of the indirect shared network, whether the PLMN allows registered users who can access the PLMN, or a list of PLMNs that the UE is allowed to access, so that if the base station does not have a PLMN that can process the access request, the UE abandons initiating the access request, or if the base station has a PLMN that can process the access request, the UE initiates a valid access request.

[0150] The following further describes a scenario in which the UE does not initiate an access request.

[0151] In one embodiment, the method further comprises:

[0152] When the access indication information of the PLMN does not match the subscription information of the user equipment, no access request is initiated to the base station.

[0153] In communication scenarios, a UE typically maintains multiple PLMN lists, i.e., the UE's subscription information, including the user equipment's Home PLMN (HPLMN), the UE's Equivalent Home PLMN (EHPLMN) list, the UE's Registered PLMN (RPLMN) list, etc.

[0154] The HPLMN is the PLMN to which the UE belongs. That is, the MCC and MNC contained in the IMSI number on the terminal's SIM card are consistent with the MCC and MNC on the HPLMN. For a given UE, there is only one PLMN to which it belongs.

[0155] The EHPLMN list includes local PLMNs that are on par with the PLMN currently selected by the UE.

[0156] The RPLMN is the PLMN that the UE registered before it was last powered on or disconnected from the network.

[0157] In the communication scenario, the UE searches for PLMNs within the network coverage of the base station based on its own subscription information and traverses each PLMN. If the access indication information of each PLMN broadcast by the base station does not match the subscription information of the UE, an access request is not initiated to the base station. If the subscription information of the UE matches the access indication information of any PLMN broadcast by the base station, an access request is initiated to the base station.

[0158] In an embodiment of the present application, the UE compares the access indication information of each PLMN with its own contract information, and if the access indication information of each PLMN does not match its own contract information, it determines that it cannot access the operator network through the base station and gives up initiating the access request, thereby reducing the waste of air interface resources.

[0159] Next, the case where the UE does not initiate an access request to the base station in the aforementioned embodiment is described.

[0160] In one embodiment, the subscription information includes a home PLMN and an equivalent home PLMN list of the user equipment; the mismatch between the PLMN access indication information and the subscription information of the user equipment includes at least one of the following:

[0161] The PLMN is a second PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0162] The PLMN is reserved for subscribers of the PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0163] The home PLMN of the user equipment is not in the user's PLMN list of accessible PLMNs.

[0164] In one scenario, the access indication information includes first access indication information for each PLMN, indicating whether the PLMN is the first PLMN, and obtains a second PLMN within the network coverage area and access indication information for the second PLMN. Based on this, if it is determined that the UE's home PLMN is different from the second PLMN, or the second PLMN is not in the UE's equivalent home PLMN list, or the UE's home PLMN is different from the second PLMN and the second PLMN is not in the UE's equivalent home PLMN list, and it is determined that the base station cannot provide communication services for itself, then the access request to the base station is abandoned.

[0165] In one scenario, the access indication information includes second access indication information, which indicates that registered users of the PLMN are accessible within the network coverage of the PLMN, but registered users of other PLMNs outside the PLMN are not accessible.

[0166] At this time, the UE traverses each PLMN within the network coverage. When it obtains that each PLMN is reserved for a subscriber of the corresponding PLMN and each PLMN is different from the UE's home PLMN, it determines that the base station cannot provide communication services for itself, and then gives up initiating an access request to the base station.

[0167] In another scenario, when each PLMN is reserved for a subscriber of the corresponding PLMN and the PLMN is not in the UE's equivalent home PLMN list, it is determined that the base station cannot provide communication services for itself, and the access request to the base station is abandoned.

[0168] In one scenario, the access indication information includes third access indication information, namely the PLMN list. At this time, the UE traverses the PLMN list accessible by each PLMN within the network coverage. If none of the PLMN lists includes the UE's home PLMN, it determines that the base station cannot provide communication services for itself, and then gives up initiating an access request to the base station.

[0169] In an embodiment of the present application, the UE can determine from different dimensions whether there is a PLMN within the network coverage area that matches the UE's subscription information based on the PLMN's indication information, and promptly abandon initiating an access request when the access indication information of each PLMN does not match its own subscription information, thereby reducing the waste of air interface resources.

[0170] Furthermore, when determining not to initiate an access request, the UE may further determine whether the PLMN within the network coverage is a PLMN it has registered with before. If so, the PLMN may be deleted from its own RPLMN list to maintain the validity of the RPLMN list.

[0171] In one embodiment, the subscription information includes a registered PLMN list of the user equipment; the method further includes:

[0172] When the PLMN is in the registered PLMN list, remove the PLMN from the registered PLMN list.

[0173] For any PLMN within the network coverage, the UE compares the PLMN with the registered PLMNs in the registered PLMN list. If the PLMN is in the registered PLMN list, it means that the UE has registered with the PLMN before. However, since the UE can no longer initiate an access request to the PLMN and access the PLMN, there is no need to store the PLMN in the registered PLMN list. The PLMN is removed from the registered PLMN list.

[0174] In an embodiment of the present application, when the UE determines not to initiate an access request, it further determines whether the PLMN within the network coverage is an RPLMN with which it has registered, and if the PLMN is in the registered PLMN list, it removes the PLMN from the registered PLMN list to maintain the validity of the RPLMN list.

[0175] In communication scenarios, a cell can host multiple base stations of different communication standards, such as a 4G base station and a 5G base station. This means that a UE can simultaneously receive cell selection information broadcast by base stations of different communication standards. In this case, the UE can choose which base station not to initiate an access request to, and which base station to initiate an access request to.

[0176] The above embodiment describes the step of not initiating an access request from the UE to the base station. The following embodiment describes the scenario where the UE initiates an access request from the base station. In one embodiment, the method further includes:

[0177] In response to the access indication information of the PLMN broadcasted by other base stations, an access request is initiated to the other base stations; the other base stations are base stations of a different communication standard from the base station.

[0178] Exemplarily, the UE simultaneously receives access indication information of the PLMN broadcast by the base station and access indication information of the PLMN broadcast by other base stations with different communication standards from the base station. At this time, the UE can directly initiate a network access request to the other base stations to access the corresponding operator network.

[0179] Exemplarily, the UE simultaneously receives the cell selection information broadcast by the base station and the cell selection information broadcast by other base stations with different communication standards from the base station. At this time, the UE can preferentially respond to the access indication information of the PLMN of the base station, and determine that there is no PLMN matching its own contract information within the network coverage of the base station, that is, after determining not to initiate an access request to the base station, it initiates a network access request to other base stations.

[0180] In the embodiment of the present application, when faced with access indication information of PLMN broadcast by different types of base stations, the UE chooses to initiate an access request to the appropriate base station to ensure that the UE can successfully access the corresponding operator network, thereby providing communication services to the user and improving the user experience.

[0181] In one embodiment, an application scenario of a network access method is provided, which satisfies the following conditions:

[0182] (1) The UE is a subscriber of PLMN3, and a roaming agreement has been signed between PLMN3 and PLMN2. That is, PLMN2 can provide roaming services for UE3.

[0183] (2) The base station is a jointly built and shared network of PLMN2 and PLMN1, and is connected to the core network of PLMN1.

[0184] (3) The other base station is a base station of a different communication standard from the base station and receives the access request of the UE.

[0185] Please refer to Figure 4, which is a signaling interaction diagram of a network access method corresponding to the above scenario. The method includes:

[0186] S401: UE searches for a PLMN.

[0187] When the UE enters the coverage area of ​​the base station, it searches for a PLMN.

[0188] S402: The base station broadcasts cell selection information, where the cell selection information includes the first PLMN, the second PLMN, and access indication information of the second PLMN.

[0189] Specifically, the base station simultaneously broadcasts the PLMN numbers of the two operators PLMN1 and PLMN2, and also broadcasts the second access indication information of the second PLMN, indicating that the registered users of the second PLMN can be accessed within the network coverage of the second PLMN, and the registered users of other PLMNs outside the second PLMN cannot be accessed.

[0190] S403: The UE searches its subscription information and finds that the PLMN number is neither the HPLMN nor in the EHPLMN list, and the UE will not attempt to access the cell.

[0191] S404: When the second PLMN is the RPLMN of the UE, the UE removes the second PLMN from the RPLMN.

[0192] The PLMN number of the second PLMN is the UE's RPLMN, which means that before the UE moved to the shared area, it had roamed in another area and accessed the PLMN2 network. However, at this time, the UE cannot access the second PLMN network, so PLMN2 can be removed from the RPLMN.

[0193] S405: The UE traverses all PLMNs within the network coverage of the base station.

[0194] S406: Other base stations broadcast access indication information of the PLMN.

[0195] The UE receives access indication information of the PLMN broadcasted by other base stations, such as access indication information of the PLMN broadcasted by a 4G base station.

[0196] S407: The UE initiates a network access request to other base stations.

[0197] In this embodiment of the present application, a base station broadcasts PLMN access indication information to instruct roaming users to select appropriate PLMNs and cells, thereby avoiding access to networks that cannot provide services to roaming users. Compared to network access mechanisms where system broadcast information only includes PLMN numbers, this embodiment expands the indication information used in indirect network sharing scenarios when a network cannot provide services to roaming users. This ensures that roaming users preferentially select and reside in appropriate cells, avoids invalid access attempts, conserves wireless network air interface resources, and improves user experience.

[0198] Please refer to Figure 5, which is a signaling interaction diagram of another network access method corresponding to the above scenario. The method includes:

[0199] S501: UE searches for a PLMN.

[0200] When the UE enters the coverage area of ​​the base station, it searches for a PLMN.

[0201] S502: The base station broadcasts cell selection information, which includes a PLMN list.

[0202] S503: The UE determines, based on its own subscription information, that the UE's HPLMN is not in the PLMN list, and the UE will not attempt to access the cell.

[0203] S504: If there is a PLMN in the UE's RPLMN list within the network coverage, remove the PLMN from the RPLMN list.

[0204] If a PLMN in the UE's RPLMN list exists within the network coverage area, it means that the UE had previously roamed to the PLMN's network in another area before moving to the shared area. However, the UE is now unable to access the PLMN's network. To maintain the UE's RPLMN, the PLMN can be removed from the RPLMN.

[0205] S505: The UE traverses all PLMNs within the network coverage of the base station.

[0206] S506: Other base stations broadcast access indication information of the PLMN.

[0207] S507: The UE initiates a network access request to other base stations.

[0208] In this embodiment of the present application, by adding a PLMN list as access indication information to the cell selection information, roaming users are instructed to select appropriate PLMNs and cells, thereby avoiding access to networks that cannot provide services to roaming users. Compared to network access mechanisms where cell selection information only includes PLMN numbers, this embodiment expands the indication information for indicating that a network cannot provide services to roaming users in indirect network sharing scenarios, ensuring that roaming users preferentially select and reside in appropriate cells, avoiding invalid access attempts, conserving wireless network air interface resources, and improving user experience.

[0209] It should be understood that, although the various steps in the flowcharts of Figures 2-5 are shown in sequence as indicated by the arrows, these steps are not necessarily performed in the order indicated by the arrows. Unless otherwise specified herein, there is no strict order restriction on the execution of these steps, and these steps can be performed in other orders. Moreover, at least a portion of the steps in Figures 2-5 may include multiple steps or multiple stages, and these steps or stages are not necessarily performed at the same time, but can be performed at different times. The execution order of these steps or stages is not necessarily to be performed in sequence, but can be performed in turn or alternately with other steps or at least a portion of steps or stages in other steps.

[0210] In one embodiment, as shown in FIG6 , a network access device is provided, the device comprising:

[0211] The message broadcast module 601 is used to broadcast access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0212] In one embodiment, the PLMN is the first PLMN and / or the second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0213] In one embodiment, the message broadcast module 601 is further configured to broadcast cell selection information within the network coverage of the base station; the cell selection information includes access indication information.

[0214] In one embodiment, the message broadcast module 601 is further configured to broadcast system broadcast information within the network coverage of the base station; the system broadcast information includes cell selection information.

[0215] In one embodiment, the access indication information includes at least one of the following:

[0216] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0217] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0218] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0219] In one embodiment, as shown in FIG7 , a network access device is provided, the device comprising:

[0220] The message receiving module 701 is configured to receive access indication information of a PLMN broadcast by a base station within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0221] In one embodiment, the PLMN is the first PLMN and / or the second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0222] In one embodiment, the message receiving module 701 is further configured to receive cell selection information broadcast by a base station within the network coverage of the base station; the cell selection information includes access indication information.

[0223] In one embodiment, the message receiving module 701 is further configured to receive system broadcast information broadcast by a base station within the network coverage of the base station; the system broadcast information includes cell selection information.

[0224] In one embodiment, the access indication information includes at least one of the following:

[0225] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0226] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0227] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0228] In one embodiment, the network access device further includes:

[0229] The request control module is configured to not initiate an access request to the base station when the access indication information in the PLMN does not match the subscription information of the user equipment.

[0230] In one embodiment, the mismatch between the access indication information of the PLMN and the subscription information of the user equipment includes at least one of the following:

[0231] The PLMN is a second PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0232] The PLMN is reserved for subscribers of the PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0233] The home PLMN of the user equipment is not in the user's PLMN list of accessible PLMNs.

[0234] In one embodiment, the network access device further includes:

[0235] The information removing module is used to remove the PLMN from the registered PLMN list when the PLMN is in the registered PLMN list.

[0236] In one embodiment, the network access device further includes:

[0237] The access request module is used to initiate an access request to other base stations in response to the access indication information of the PLMN broadcast by other base stations; the other base stations are base stations with different communication standards from the base station.

[0238] For specific definitions of network access devices, please refer to the definitions of network access methods above and will not be repeated here. Each module in the above-mentioned network access device can be implemented in whole or in part through software, hardware, or a combination thereof. Each of the above-mentioned modules can be embedded in or independent of the processor in the computer device in hardware form, or can be stored in the memory of the computer device in software form, so that the processor can call and execute the corresponding operations of each of the above modules.

[0239] Please refer to Figure 8, which is a schematic diagram of the structure of an access network device provided in an embodiment of the present application. The access network device may include a receiver 81, a memory 82, a processor 83, at least one communication bus 84, and a transmitter 85. The communication bus 84 is used to implement communication connections between components. The memory 82 may include a high-speed RAM memory, or may also include non-volatile storage NVM, such as at least one disk storage. The memory 82 may store various programs for performing various processing functions and implementing the method steps of this embodiment. In this embodiment, the transmitter 85 may be a radio frequency processing module or a baseband processing module in the access network device, and the receiver 81 may also be a radio frequency processing module or a baseband processing module in the access network device. The transmitter 85 and the receiver 81 may be integrated together to form a transceiver. Both the transmitter 85 and the receiver 81 may be coupled to the processor 83, and they may perform receiving or transmitting actions under the instruction or control of the processor 83.

[0240] In this embodiment, the transmitter 85 is configured to broadcast access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0241] In one embodiment, the PLMN is the first PLMN and / or the second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0242] In one embodiment, the transmitter 85 is specifically configured to broadcast cell selection information within the network coverage of the base station; the cell selection information includes access indication information.

[0243] In one embodiment, the transmitter 85 is specifically configured to broadcast system broadcast information within the network coverage of the base station; the system broadcast information includes cell selection information.

[0244] In one embodiment, the access indication information includes at least one of the following:

[0245] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0246] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0247] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0248] In one embodiment, a communication device is provided, see Figure 9. Figure 9 is a schematic diagram of the structure of the terminal device provided in an embodiment of the present application. The terminal device shown in Figure 9 includes: at least one processor 901, a memory 902, at least one network interface 904 and a user interface 903. The various components in the terminal device 900 are coupled together through a bus system 905. It can be understood that the bus system 905 is used to achieve connection and communication between these components. In addition to the data bus, the bus system 905 also includes a power bus, a control bus and a status signal bus. However, for the sake of clarity, various buses are labeled as bus systems 905 in Figure 1. In addition, in an embodiment of the present invention, a transceiver 906 is also included. The transceiver can be multiple components, that is, including a transmitter and a receiver, providing a unit for communicating with various other devices on a transmission medium.

[0249] The user interface 903 may include a display, a keyboard, or a pointing device (eg, a mouse, a trackball, a touchpad, or a touch screen).

[0250] It is understood that the memory 902 in the embodiment of the present invention may be a volatile memory or a non-volatile memory, or may include both volatile and non-volatile memories. Among them, the non-volatile memory may be a read-only memory (ROM), a programmable read-only memory (PROM), an erasable programmable read-only memory (EPROM), an electrically erasable programmable read-only memory (EEPROM), or a flash memory. The volatile memory may be a random access memory (RAM), which is used as an external cache. By way of example and not limitation, many forms of RAM are available, such as static random access memory (SRAM), dynamic random access memory (DRAM), synchronous dynamic random access memory (SDRAM), double data rate synchronous dynamic random access memory (DDRSDRAM), enhanced synchronous dynamic random access memory (ESDRAM), synchronous link dynamic random access memory (SLDRAM), and direct RAM bus random access memory (DRRAM). The memory 902 of the systems and methods described in the embodiments of the present invention is intended to include, but is not limited to, these and any other suitable types of memory.

[0251] In some embodiments, the memory 902 stores the following elements, executable modules or data structures, or a subset thereof, or an extended set thereof: an operating system 9021 and application programs 9022 .

[0252] The operating system 9021 includes various system programs, such as a framework layer, a core library layer, and a driver layer, for implementing various basic services and handling hardware-based tasks. Application programs 9022 include various application programs, such as a media player (MediaPlayer) and a browser (Browser), for implementing various application services. Programs implementing the methods of the embodiments of the present invention may be included in application programs 9022.

[0253] In an embodiment of the present invention, by calling the program or instructions stored in the memory 902, specifically, the program or instructions stored in the application 9022, the receiver is used to receive the access indication information of the PLMN broadcast by the base station within the network coverage of the base station; the access indication information is used to indicate that the PLMN is allowed to access the user equipment of the base station within the network coverage of the base station.

[0254] Some or all of the methods disclosed in the above embodiments of the present invention may also be applied to the processor 901, or implemented by the processor 901, or implemented by the processor 901 in conjunction with other components (e.g., a transceiver). The processor 901 may be an integrated circuit chip with signal processing capabilities. During implementation, each step of the above method may be performed by hardware integrated logic circuits in the processor 901 or by software instructions. The above processor 901 may be a general-purpose processor, a digital signal processor (DSP), an application-specific integrated circuit (ASIC), a field programmable gate array (FPGA), or other programmable logic devices, discrete gate or transistor logic devices, or discrete hardware components. The methods, steps, and logic block diagrams disclosed in the embodiments of the present invention may be implemented or executed. The general-purpose processor may be a microprocessor or any conventional processor. The steps of the methods disclosed in conjunction with the embodiments of the present invention may be directly implemented and executed by a hardware decoding processor, or by a combination of hardware and software modules in the decoding processor. The software module can be located in a storage medium well-known in the art, such as random access memory, flash memory, read-only memory, programmable read-only memory, electrically erasable programmable memory, registers, etc. The storage medium is located in memory 902, and processor 901 reads information in memory 902 and, in conjunction with its hardware, completes the steps of the above method.

[0255] It is understood that the embodiments described in the embodiments of the present application can be implemented using hardware, software, firmware, middleware, microcode, or a combination thereof. For hardware implementation, the processing unit can be implemented in one or more application-specific integrated circuits (ASICs), digital signal processors (DSPs), digital signal processing devices (DSP devices, DSPDs), programmable logic devices (PLDs), field-programmable gate arrays (FPGAs), general-purpose processors, controllers, microcontrollers, microprocessors, other electronic units for performing the functions described in the present application, or a combination thereof.

[0256] For software implementation, the techniques described in the embodiments of the present invention can be implemented through modules (e.g., procedures, functions, etc.) that perform the functions described in the embodiments of the present invention. The software code can be stored in a memory and executed by the processor 901. The memory can be implemented in the processor 901 or external to the processor 901.

[0257] In one embodiment, the PLMN is the first PLMN and / or the second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0258] In one embodiment, the receiver is specifically configured to receive cell selection information broadcast by a base station within a network coverage area of ​​the base station; the cell selection information includes access indication information.

[0259] In one embodiment, the receiver is specifically configured to receive system broadcast information broadcast by a base station within a network coverage area of ​​the base station; the system broadcast information includes cell selection information.

[0260] In one embodiment, the access indication information includes at least one of the following:

[0261] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0262] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0263] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0264] In one embodiment, the processor 901 is configured to not initiate an access request to the base station when the access indication information of the PLMN does not match the subscription information of the user equipment.

[0265] In one embodiment, the subscription information includes a home PLMN and an equivalent home PLMN list of the user equipment; the mismatch between the PLMN access indication information and the subscription information of the user equipment includes at least one of the following:

[0266] The PLMN is a second PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0267] The PLMN is reserved for subscribers of the PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0268] The home PLMN of the user equipment is not in the user's PLMN list of accessible PLMNs.

[0269] In one embodiment, the processor 901 is further configured to remove the PLMN from the registered PLMN list when the PLMN is in the registered PLMN list.

[0270] In one embodiment, the receiver 31 is specifically configured to initiate an access request to other base stations in response to access indication information of the PLMN broadcasted by other base stations; the other base stations are base stations of a different communication standard from the base station.

[0271] In one embodiment, a computer-readable storage medium is provided, on which a computer program is stored. When the computer program is executed by a processor, the following steps are implemented:

[0272] Broadcast access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0273] In one embodiment, the PLMN is the first PLMN and / or the second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0274] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0275] The cell selection information is broadcast within the network coverage of the base station; the cell selection information includes access indication information.

[0276] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0277] Broadcast system broadcast information within the network coverage of the base station; the system broadcast information includes cell selection information.

[0278] In one embodiment, the access indication information includes at least one of the following:

[0279] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0280] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0281] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0282] In one embodiment, the computer program, when executed by a processor, performs the following steps:

[0283] The receiving base station broadcasts access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0284] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0285] Receive cell selection information broadcast by a base station within a network coverage area of ​​the base station; the cell selection information includes access indication information.

[0286] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0287] Receive system broadcast information broadcast by a base station within the network coverage of the base station; the system broadcast information includes cell selection information.

[0288] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0289] When the access indication information of the PLMN does not match the subscription information of the user equipment, no access request is initiated to the base station.

[0290] In one embodiment, the subscription information includes a home PLMN and an equivalent home PLMN list of the user equipment; the mismatch between the PLMN access indication information and the subscription information of the user equipment includes at least one of the following:

[0291] The PLMN is a second PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0292] The PLMN is reserved for subscribers of the PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0293] The home PLMN of the user equipment is not in the user's PLMN list of accessible PLMNs.

[0294] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0295] When the PLMN is in the registered PLMN list, remove the PLMN from the registered PLMN list.

[0296] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0297] In response to the access indication information of the PLMN broadcasted by other base stations, an access request is initiated to the other base stations; the other base stations are base stations of a different communication standard from the base station.

[0298] The present application also provides a computer program product including instructions, which, when executed on a computer, causes the computer program to further perform the following steps when executed by a processor:

[0299] Broadcast access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0300] In one embodiment, the PLMN is the first PLMN and / or the second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

[0301] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0302] The cell selection information is broadcast within the network coverage of the base station; the cell selection information includes access indication information.

[0303] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0304] Broadcast system broadcast information within the network coverage of the base station; the system broadcast information includes cell selection information.

[0305] In one embodiment, the access indication information includes at least one of the following:

[0306] First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN;

[0307] Second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access;

[0308] The third access indication information is used to indicate the PLMN list of users that can access the PLMN within the network coverage area.

[0309] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0310] The receiving base station broadcasts access indication information of the PLMN within the network coverage of the base station; the access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

[0311] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0312] Receive cell selection information broadcast by a base station within a network coverage area of ​​the base station; the cell selection information includes access indication information.

[0313] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0314] Receive system broadcast information broadcast by a base station within the network coverage of the base station; the system broadcast information includes cell selection information.

[0315] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0316] When the access indication information of the PLMN does not match the subscription information of the user equipment, no access request is initiated to the base station.

[0317] In one embodiment, the subscription information includes a home PLMN and an equivalent home PLMN list of the user equipment; the mismatch between the PLMN access indication information and the subscription information of the user equipment includes at least one of the following:

[0318] The PLMN is a second PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0319] The PLMN is reserved for subscribers of the PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment;

[0320] The home PLMN of the user equipment is not in the user's PLMN list of accessible PLMNs.

[0321] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0322] When the PLMN is in the registered PLMN list, remove the PLMN from the registered PLMN list.

[0323] In one embodiment, when the computer program is executed by a processor, the following steps are further implemented:

[0324] In response to the access indication information of the PLMN broadcasted by other base stations, an access request is initiated to the other base stations; the other base stations are base stations of a different communication standard from the base station.

[0325] Those skilled in the art will appreciate that all or part of the processes in the above-mentioned embodiment methods can be implemented by instructing the relevant hardware through a computer program, and the computer program can be stored in a non-volatile computer-readable storage medium. When the computer program is executed, it can include the processes of the embodiments of the above-mentioned methods. Among them, any reference to memory, storage, database or other media used in the embodiments provided in this application may include at least one of non-volatile and volatile memory. Non-volatile memory may include read-only memory (ROM), magnetic tape, floppy disk, flash memory or optical memory, etc. Volatile memory may include random access memory (RAM) or external cache memory. As an illustration and not limitation, RAM can be in various forms, such as static random access memory (SRAM) or dynamic random access memory (DRAM).

[0326] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0327] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. A network access method, applied to a base station, comprising: Broadcasting PLMN access indication information within the network coverage of the base station; The access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

2. The method according to claim 1, wherein The PLMN is a first PLMN and / or a second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

3. The method according to claim 1, wherein The broadcasting of PLMN access indication information within the network coverage of the base station includes: Broadcasting cell selection information within the network coverage of the base station; the cell selection information includes the access indication information.

4. The method according to claim 3, wherein: The broadcasting of the cell selection information within the network coverage of the base station includes: Broadcasting system broadcast information within the network coverage of the base station; the system broadcast information includes the cell selection information.

5. The method according to any one of claims 1 to 4, wherein: The access indication information includes at least one of the following: First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN; second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access; third access indication information; The third access indication information is used to indicate a PLMN list of users that the PLMN can access within the coverage of the network.

6. A network access method, applied to a user equipment, comprising: The receiving base station broadcasts access indication information of the PLMN within the network coverage of the base station; The access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

7. The method according to claim 6, wherein: The PLMN is a first PLMN and / or a second PLMN; the base station is a shared base station of the first PLMN and the second PLMN, the base station is connected to the core network element of the first PLMN, and the core network element of the first PLMN is connected to the core network element of the second PLMN.

8. The method according to claim 6, wherein: The receiving base station broadcasts access indication information of the PLMN within the network coverage of the base station, including: Receive cell selection information broadcast by the base station within the network coverage of the base station; the cell selection information includes the access indication information.

9. The method according to claim 8, wherein The receiving the cell selection information broadcast by the base station within the network coverage of the base station includes: receiving system broadcast information broadcast by the base station within the network coverage of the base station; the system broadcast information includes the cell selection information.

10. The method according to any one of claims 6 to 9, wherein: The access indication information includes at least one of the following: First access indication information; the first access indication information is used to indicate that the PLMN is the first PLMN or the PLMN is not the first PLMN; second access indication information; The second access indication information is used to indicate that the PLMN can access registered users of the PLMN within the network coverage area, and registered users of other PLMNs outside the PLMN cannot access; third access indication information; The third access indication information is used to indicate a PLMN list of users that the PLMN can access within the coverage of the network.

11. The method according to any one of claims 6 to 9, wherein: The method further comprises: When the access indication information of the PLMN does not match the subscription information of the user equipment, no access request is initiated to the base station.

12. The method according to claim 11, wherein The subscription information includes a home PLMN and an equivalent home PLMN list of the user equipment; The access indication information of the PLMN and the subscription information of the user equipment do not match each other, including at least one of the following: The PLMN is a second PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment; The PLMN is reserved for subscribers of the PLMN, and the PLMN is different from the home PLMN of the user equipment and / or the PLMN is not in the equivalent home PLMN list of the user equipment; The home PLMN of the user equipment is not in the PLMN list of users accessible by the PLMN.

13. The method according to claim 11, wherein The subscription information includes a registered PLMN list of the user equipment; the method further includes: When the PLMN is in the registered PLMN list, remove the PLMN from the registered PLMN list.

14. A network access device, comprising: An information broadcast module, configured to broadcast PLMN access indication information within the network coverage area of ​​the base station; The access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

15. A network access device, comprising: An information receiving module, configured to receive access indication information of a PLMN broadcast by a base station within a network coverage area of ​​the base station; The access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

16. A communication device comprising: transmitter; The transmitter is configured to broadcast access indication information of the PLMN within the network coverage of the base station; The access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

17. A communication device comprising: Receiver; The receiver is configured to receive access indication information of a PLMN broadcast by a base station within a network coverage area of ​​the base station; The access indication information is used to instruct the PLMN to allow user equipment to access the base station within the network coverage of the base station.

18. A computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the method according to any one of claims 1 to 13 are implemented.

19. A computer program product comprising a computer program, which, when executed by a processor, implements the steps of the method according to any one of claims 1 to 13.

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