CN116709452A - Method and device for accessing cluster core network in same public land mobile network - Google Patents

Method and device for accessing cluster core network in same public land mobile network Download PDF

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Publication number
CN116709452A
CN116709452A CN202210174894.0A CN202210174894A CN116709452A CN 116709452 A CN116709452 A CN 116709452A CN 202210174894 A CN202210174894 A CN 202210174894A CN 116709452 A CN116709452 A CN 116709452A
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core network
cluster core
target
request message
special
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施荣荣
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Chengdu TD Tech Ltd
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Chengdu TD Tech Ltd
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Priority to CN202210174894.0A priority Critical patent/CN116709452A/en
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/0005—Control or signalling for completing the hand-off
    • H04W36/0055—Transmission or use of information for re-establishing the radio link
    • H04W36/0066—Transmission or use of information for re-establishing the radio link of control information between different types of networks in order to establish a new radio link in the target network
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W48/00—Access restriction; Network selection; Access point selection
    • H04W48/18—Selecting a network or a communication service
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W8/00—Network data management
    • H04W8/18—Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20—Transfer of user or subscriber data
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Computer Security & Cryptography (AREA)
  • Databases & Information Systems (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

The embodiment of the application provides a method and a device for accessing a trunking core network in the same public land mobile network, which are applied to shared trunking core network equipment and are used for receiving an access request message of a user terminal (UE) sent by a base station; when the shared cluster core network supports the cluster core network reselection migration, responding to an access request message, and acquiring a target cluster core network to which the UE is to be accessed; and sending a reselection request message carrying the identifier of the target special cluster core network to the base station, wherein the reselection request message is used for indicating the base station to access the UE to the target special cluster core network, and the target special cluster core network and the shared cluster core network belong to the same public land mobile network. The technical scheme of the application realizes that the user terminal is switched from the shared cluster core network which is accessed currently to the special cluster core network which is accessed to the same public land mobile network, so that the shared cluster core network and the special cluster core network are not affected each other, and the operation and maintenance of the cluster core network are realized.

Description

Method and device for accessing cluster core network in same public land mobile network
Technical Field
The present application relates to the field of wireless communications technologies, and in particular, to a method and an apparatus for accessing a trunking core network in the same public land mobile network.
Background
In the shared architecture of the local networking access network defined by the broadband trunking communication B-trunk standard, in order to guarantee the business requirements of the industry, a special trunking core network (Dedicated Trunking Core Network, DTCN for short) is provided for the terminal equipment of users in the specific industry.
Currently, each cluster core network may be differentiated by different public land mobile networks (Public Land Mobile Network, abbreviated PLMNs) to provide access network services for core networks of multiple operators or users. Specifically, when receiving an access request message sent by a user terminal, the base station may determine a PLMN corresponding to the access request message, so as to connect the user terminal to a trunking core network corresponding to the PLMN, where the trunking core network corresponding to the PLMN may be a shared trunking core network or a dedicated trunking core network.
However, it may be implemented in the same PLMN to provide a shared trunked core network (Trunking Core Network, abbreviated as TCN) as well as a dedicated trunked core network DTCN for a plurality of different industries. However, when the user terminals in different industries access the network for the first time, the base station cannot distinguish the dedicated trunking core network DTCN to which the user terminals belong according to the PLMN, so that the user terminals cannot be connected to the corresponding dedicated trunking core network DTCN.
Disclosure of Invention
The embodiment of the application provides a method and a device for accessing a trunking core network in the same public land mobile network, which can realize that a special trunking core network corresponding to a user terminal is accessed in the same public land mobile network PLMN.
In a first aspect, an embodiment of the present application provides a method for accessing a trunking core network in the same public land mobile network, which is applied to a shared trunking core network device, where the method for accessing the trunking core network in the same public land mobile network includes:
receiving an access request message of a user terminal (UE) sent by a base station;
when the shared cluster core network supports cluster core network reselection migration, responding to the access request message, and acquiring a target cluster core network to be accessed by the UE;
and if the target cluster core network is a target special cluster core network, sending a reselection request message carrying an identifier of the target special cluster core network to a base station, wherein the reselection request message is used for indicating the base station to access the UE to the target special cluster core network, and the target special cluster core network and the shared cluster core network belong to the same public land mobile network.
Optionally, the obtaining the target cluster core network to be accessed by the UE includes:
Sending an authentication request message to a home subscriber server corresponding to the UE, and acquiring a target terminal use type corresponding to the UE returned by the home subscriber server;
or alternatively, the first and second heat exchangers may be,
acquiring a target terminal use type corresponding to the UE, which is prestored in the shared cluster core network;
and determining a target special cluster core network corresponding to the target terminal use type according to the target terminal use type and a mapping relation between the pre-stored terminal use type and the special cluster core network.
Optionally, the reselection request message includes an initial user terminal message, a target mobility management group identification code corresponding to the target dedicated cluster core network, and a target global unique temporary identifier;
the initial user terminal message carries a terminal use type, and the target mobile management group identification code and the target global unique temporary identifier are used for verifying whether the target special cluster core network is allowed to be accessed to the UE.
Optionally, the method further comprises:
if the target cluster core network is a shared cluster core network, providing service for the UE through the shared cluster core network, and detecting the position of the UE in real time;
When the current position of the UE is detected to exceed the service area of the currently accessed shared cluster core network, acquiring a special cluster core network to be accessed corresponding to the current position of the UE;
and sending a reselection request message carrying an identifier of the to-be-accessed special cluster core network to a base station corresponding to the to-be-accessed special cluster core network, wherein the reselection request message is used for indicating the base station to access the UE to the to-be-accessed special cluster core network.
In a second aspect, an embodiment of the present application provides a method for accessing a trunking core network in the same public land mobile network, which is applied to a dedicated trunking core network device, where the method for accessing the trunking core network in the same public land mobile network includes:
receiving a reselection request message which is sent by a base station and carries an identifier of a target special cluster core network, wherein the reselection request message is sent to the base station by a shared cluster core network which is accessed by a user terminal (UE) currently;
judging whether the special cluster core network allows the UE to access according to the reselection request message;
and if the special cluster core network allows the UE to be accessed, accessing the UE to the special cluster core network.
Optionally, the determining whether the UE is allowed to access by the dedicated trunking core network according to the reselection request message includes:
determining the identification of a target special cluster core network corresponding to the terminal use type according to the terminal use type carried by the initial user terminal message in the reselection request message and the mapping relation between the pre-stored terminal use type and the special cluster core network;
judging whether the identification of the target special cluster core network is consistent with the identification of the special cluster core network, whether the identification code of the target mobile management group in the reselection request message is consistent with the identification code of the mobile management group corresponding to the special cluster core network, and whether the target global unique temporary identification in the reselection request message is consistent with the global unique temporary identification corresponding to the special cluster core network;
and if the identification of the target special cluster core network is consistent with the identification of the special cluster core network, the identification code of the target mobile management group is consistent with the identification code of the mobile management group, and the target global unique temporary identification is consistent with the global unique temporary identification, determining that the special cluster core network allows the UE to be accessed.
Optionally, after the UE accesses the dedicated trunked core network, the method further includes:
when detecting that the current position of the UE exceeds the service area of the currently accessed special cluster core network, acquiring a base station corresponding to the current position of the UE;
and sending an attachment request message of the UE to a base station corresponding to the current position of the UE, wherein the attachment request message comprises an access request message of the UE, and the attachment request message is used for indicating the UE to access a shared cluster core network of the base station corresponding to the current position of the UE.
In a third aspect, an embodiment of the present application provides an access trunking core network device in the same public land mobile network, where the access trunking core network device in the same public land mobile network includes:
the receiving module is used for receiving an access request message of a user terminal (UE) sent by the base station;
the acquisition module is used for responding to the access request message when the shared cluster core network supports cluster core network reselection migration, and acquiring a target cluster core network to be accessed by the UE;
and the reselection access module is used for sending a reselection request message carrying the identifier of the target special cluster core network to the base station when the target cluster core network is the target special cluster core network, wherein the reselection request message is used for indicating the base station to access the UE to the target special cluster core network, and the target special cluster core network and the shared cluster core network belong to the same public land mobile network.
Optionally, the acquiring module is specifically configured to send an authentication request message to a home subscriber server corresponding to the UE, and acquire a target terminal usage type corresponding to the UE returned by the home subscriber server; or, obtaining a target terminal use type corresponding to the UE, which is prestored in the shared cluster core network; and determining a target special cluster core network corresponding to the target terminal use type according to the target terminal use type and a mapping relation between the pre-stored terminal use type and the special cluster core network.
Optionally, the reselection request message includes an initial user terminal message, a target mobility management group identification code corresponding to the target dedicated cluster core network, and a target global unique temporary identifier; the initial user terminal message carries a terminal use type, and the target mobile management group identification code and the target global unique temporary identifier are used for verifying whether the target special cluster core network is allowed to be accessed to the UE.
Optionally, the device further includes a switching module, where the switching module is configured to provide a service for the UE through the shared trunking core network when the target trunking core network is the shared trunking core network, and detect a location where the UE is located in real time. When the current position of the UE is detected to exceed the service area of the currently accessed shared cluster core network, acquiring a special cluster core network to be accessed corresponding to the current position of the UE; and sending a reselection request message carrying an identifier of the to-be-accessed special cluster core network to a base station corresponding to the to-be-accessed special cluster core network, wherein the reselection request message is used for indicating the base station to access the UE to the to-be-accessed special cluster core network.
In a fourth aspect, an embodiment of the present application provides an access trunking core network device in the same public land mobile network, where the access trunking core network device in the same public land mobile network includes:
the message receiving module is used for receiving a reselection request message which is sent by a base station and carries the identifier of a target special cluster core network, wherein the reselection request message is sent to the base station by a shared cluster core network which is accessed by a user terminal (UE) currently;
the judging module is used for judging whether the UE is allowed to be accessed by the special cluster core network according to the reselection request message;
and the network access module is used for accessing the UE to the special cluster core network when the special cluster core network allows the UE to access.
Optionally, the determining module is specifically configured to determine, according to a terminal usage type carried by an initial user terminal message in the reselection request message and a mapping relationship between a pre-stored terminal usage type and a dedicated trunking core network, an identifier of a target dedicated trunking core network corresponding to the terminal usage type. Judging whether the identification of the target special cluster core network is consistent with the identification of the special cluster core network, whether the identification code of the target mobile management group in the reselection request message is consistent with the identification code of the mobile management group corresponding to the special cluster core network, and whether the target global unique temporary identification in the reselection request message is consistent with the global unique temporary identification corresponding to the special cluster core network. And when the identification of the target special cluster core network is consistent with the identification of the special cluster core network, the identification code of the target mobile management group is consistent with the identification code of the mobile management group, and the target global unique temporary identification is consistent with the global unique temporary identification, determining that the special cluster core network allows the UE to be accessed.
Optionally, the device further includes a network switching module, where the network switching module is configured to obtain a base station corresponding to the current location of the UE when detecting that the current location of the UE exceeds a service area of a dedicated trunking core network currently accessed; and sending an attachment request message of the UE to a base station corresponding to the current position of the UE, wherein the attachment request message comprises an access request message of the UE, and the attachment request message is used for indicating the UE to access a shared cluster core network of the base station corresponding to the current position of the UE.
In a fifth aspect, an embodiment of the present application further provides an electronic device, including: a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored in the memory to implement the method as described in any one of the possible implementations of the first or second aspect.
In a sixth aspect, an embodiment of the present application further provides a computer readable storage medium, where computer executable instructions are stored, when executed by a processor, to implement the method described in any one of the possible implementation manners of the first aspect or the second aspect.
It can be seen that the embodiment of the present application provides a method and an apparatus for accessing a trunking core network in the same public land mobile network, which are applied to a shared trunking core network device, and receive an access request message of a user terminal UE sent by a base station; when the shared cluster core network supports the cluster core network reselection migration, responding to an access request message, and acquiring a target cluster core network to which the UE is to be accessed; if the target trunking core network is the target private trunking core network, a reselection request message carrying the identifier of the target private trunking core network is sent to the base station, wherein the reselection request message is used for indicating the base station to access the UE to the target private trunking core network, and the target private trunking core network and the shared trunking core network belong to the same public land mobile network. The technical scheme provided by the embodiment of the application can realize that the user terminal is accessed to the shared trunking core network in the public land mobile network, and when the user terminal has the corresponding private trunking core network in the public land mobile network, the user terminal is accessed to the corresponding private trunking core network by sending the reselection request message to the base station.
Drawings
Fig. 1 is a schematic diagram of an architecture of a user terminal access network in the prior art according to an embodiment of the present application;
Fig. 2 is a schematic diagram of an architecture of a user terminal access network according to an embodiment of the present application;
fig. 3 is a flow chart of a method for accessing a trunking core network in the same public land mobile network, which is applied to a shared trunking core network device according to an embodiment of the present application;
fig. 4 is a flow chart of a method for accessing a trunking core network in the same public land mobile network, which is applied to a private trunking core network device according to an embodiment of the present application;
fig. 5 is an interaction schematic diagram of a method for accessing a trunked core network in the same public land mobile network according to an embodiment of the present application;
fig. 6 is a schematic structural diagram of an access cluster core network device in the same public land mobile network according to an embodiment of the present application;
fig. 7 is a schematic structural diagram of another device for accessing a trunking core network in the same public land mobile network according to an embodiment of the present application;
fig. 8 is a schematic structural diagram of an electronic device according to the present application.
Specific embodiments of the present disclosure have been shown by way of the above drawings and will be described in more detail below. These drawings and the written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the disclosed concepts to those skilled in the art by reference to specific embodiments.
Detailed Description
Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.
In embodiments of the present application, "at least one" means one or more, and "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: there are three cases, a alone, a and B together, and B alone, wherein a, B may be singular or plural. In the text description of the present application, the character "/" generally indicates that the front-rear associated object is an or relationship.
The technical scheme provided by the embodiment of the application can be applied to the scene that the user terminal is accessed to the special cluster core network. At present, when a user terminal accesses to a trunking core network, reference may be made to fig. 1, and fig. 1 is a schematic diagram of an architecture of a user terminal access network in the prior art according to an embodiment of the present application. As shown in fig. 1, the architecture comprises a user terminal 101, a user terminal 102, a user terminal 103, a base station 104, a first public land mobile network 105, a second public land mobile network 106 and a third public land mobile network 107. The user terminal 101, the user terminal 102, and the user terminal 103 may be various types of user terminals. For example, the user terminal described in the present application may include a mobile phone, a tablet computer, a notebook computer, a palm computer, a personal digital assistant (Personal Digital Assistant, abbreviated as PDA), a portable media player (Portable Media Player, abbreviated as PMP), a navigation device, a wearable device, a smart bracelet, a pedometer, and the like, and the embodiment of the present application is not limited to the user terminal specifically. In the present application, the base station may be a T-eNB. The first public land mobile network 105, the second public land mobile network 106 and the third public land mobile network 107 are different public land mobile networks belonging to the same base station. It will be appreciated that each public land mobile network comprises a trunked core network, which may be a shared trunked core network allowing access to all user terminals, or a dedicated core trunked network allowing access to only specific user terminals.
Wherein the user terminal 101 corresponds to a first public land mobile network 105, the user terminal 102 corresponds to a second public land mobile network 106, and the user terminal 103 corresponds to a third public land mobile network 107.
According to the architecture shown in fig. 1, when the base station 102 receives the access request message sent by the user terminal 101, the first public land mobile network 105 corresponding to the user terminal 101 may be determined according to the correspondence between the first user terminal 101 and the public land mobile network, so as to access the user terminal 101 to the trunked core network in the first public land mobile network 105.
In fig. 1, the base station 102, upon receiving the access request message sent by the user terminal 102, accesses the second user terminal 102 into the trunked core network in the second public land mobile network 106. The base station 102, upon receiving the access request message sent by the user terminal 103, accesses the third user terminal 103 to the trunked core network in the third public land mobile network 107. It may be appreciated that the base station 102 may process multiple access request messages at the same time, where the number of access request messages processed by the base station 102 is related to the number and time of the user terminals that send the access request messages, and the number of access request messages processed by the base station 102 is not limited in this embodiment of the present application.
However, according to the demands of different industries for the trunked core networks, two types of trunked core networks, a shared trunked core network and a dedicated core trunked network, may be included in the same public land mobile network PLMN. The shared cluster core network allows any user terminal to access, and the special core cluster network allows the user terminal in the specific industry to access. However, when the user terminals in different industries access the trunking core network for the first time, the trunking core network corresponding to the user terminals cannot be distinguished according to the PLMN, which may cause that the user terminals cannot access the corresponding private trunking core network, and affect the operation and maintenance of the shared trunking core network.
In order to solve the problem that the operation and maintenance of the cluster core network are affected because the user terminal cannot access to the corresponding private cluster core network in the same PLMN, when the user terminal accesses to the shared cluster core network in the PLMN, the operation and maintenance of the cluster core network are facilitated by judging whether the shared cluster core network supports the cluster core network reselection migration and acquiring the private cluster core network corresponding to the user terminal when the shared cluster core network supports the cluster core network reselection migration, so that the user terminal is accessed to the corresponding private cluster core network through the base station, the services of the shared cluster core network and the private cluster core network are not affected by each other.
Fig. 2 is a schematic diagram of an architecture of a user terminal access network according to an embodiment of the present application. According to the architecture shown in fig. 2, the shared cluster core network 206, the first dedicated cluster core network 207 and the second dedicated cluster core network 208 are all assigned to the public land mobile network 209, that is, the shared cluster core network can be deployed in the public land mobile network 209 for multiple industries, and the dedicated cluster core networks can be deployed separately for different industries. Wherein the shared cluster core network 206 is capable of providing network services for the user terminal 201, the user terminal 202 and the user terminal 203. The first private cluster core network 207 is deployed for industry a and is only capable of providing network services for user terminals 202. The second private cluster core network 208 is deployed for industry B and is only capable of providing network services for the user terminal 203. And base station 204 is connected only to shared clustered core network 206, while base station 205 is capable of being connected to shared clustered core network 206, first dedicated clustered core network 207, and second dedicated clustered core network 208.
For example, according to the architecture shown in fig. 2, when the user terminal 201 has an attachment requirement, the user terminal 201 transmits an access Request message, i.e., an Attach Request message, to the base station 204. It will be appreciated that the user terminal 201 may determine the corresponding base station 204 from its corresponding public land mobile network 209.
Further, after receiving the Attach Request message, the base station 204 may send an initial user terminal message (Initial UE Message) to the shared trunked core network 206, so as to access the user terminal 201 to the shared trunked core network 206 in the public land mobile network 209. The Initial UE Message message includes an Attach Request message of the user terminal 201.
Further, after the ue 201 is connected to the shared trunking core network 206 in the public land mobile network 209, it may be determined whether the shared trunking core network 206 supports trunking core network reselection migration, if so, a target trunking core network of the ue 201 may be obtained, and since the ue 201 does not have a dedicated trunking core network, the obtained target trunking core network of the ue 201 is the shared trunking core network, that is, the ue 201 accesses the corresponding shared trunking core network.
According to the above description of the access of the ue 201 to the trunked core network, when the ue 202 has an attachment requirement, the ue 202 sends an Attach Request message to the base station 205. It will be appreciated that the user terminal 22 may determine the corresponding base station 205 from its corresponding public land mobile network 209. Further, after receiving the Attach Request message, the base station 205 may send Initial UE Message to the shared trunked core network 206 to access the user terminal 202 to the shared trunked core network 206 in the public land mobile network 209. The Initial UE Message message includes an Attach Request message of the user terminal 201.
Further, after the ue 202 is accessed to the shared trunking core network 206 in the public land mobile network 209, it may be determined whether the shared trunking core network 206 supports trunking core network reselection migration, and if so, the target trunking core network of the ue 202 may be obtained, that is, the dedicated trunking core network 207 corresponding to the ue 202 is obtained, and a reselection request message is sent to the base station 205 (Reroute NAS Request), so that the base station 205 accesses the ue 202 to the corresponding shared trunking core network 207 according to the reselection request message.
For example, the reselection request message sent by the terminal device 202 to the base station 205 carries the identifier of the dedicated trunking core network 207 corresponding to the user terminal 202, and may further include other information, for example, an initial user terminal message, a mobility management group identifier corresponding to the dedicated trunking core network 207, a globally unique temporary identifier, and so on, which is not limited in the embodiment of the present application.
Further, when the base station sends the received reselection request carrying the identifier of the private trunking core network 207 corresponding to the user terminal 202 to the private trunking core network 207, the private trunking core network 207 may verify the identifier carried in the reselection request message, and when the verification is successful, the user terminal 202 is accessed to the private trunking core network 207, so that the private trunking core network 207 provides the corresponding network service for the user terminal 202.
It should be understood that, in the method for accessing the ue 203 to the first private trunked core network 208 in the public land mobile network 209, the method for accessing the ue 202 to the first private trunked core network 207 in the public land mobile network 209 is similar to that described above, and in particular, reference may be made to the description of the ue 202 accessing the private trunked core network 207, which is not repeated herein.
According to the architecture shown in fig. 2, it can be known that, in the technical solution provided by the embodiment of the present application, when a user terminal exists in one PLMN, that is, a dedicated trunking core network capable of providing services for the user terminal, there is a shared trunking core network capable of providing services for the user terminal in the PLMN. When the user terminal accesses the corresponding special cluster core network, the shared cluster core network can send a reselection request message to the base station, so that the base station accesses the user terminal to the corresponding special cluster core network based on the received reselection request message. The services of the shared cluster core network and the dedicated cluster core network in the same PLMN are not affected by each other, and the operation and maintenance of the cluster core network are facilitated.
The method for accessing the trunking core network in the same public land mobile network provided by the application will be described in detail by a specific embodiment. It is to be understood that the following embodiments may be combined with each other and that some embodiments may not be repeated for the same or similar concepts or processes.
The method for accessing the trunking core network in the same public land mobile network provided by the embodiment of the application can be applied to the shared trunking core network equipment and the special trunking core network equipment, and the method for accessing the trunking core network in the same public land mobile network provided by the embodiment of the application is described below from the angles of the shared trunking core network equipment and the special trunking core network equipment respectively.
Fig. 3 is a flow chart of a method for accessing a trunking core network in the same public land mobile network, which is applied to a shared trunking core network device according to an embodiment of the present application. The method of accessing the clustered core network in the same public land mobile network may be performed by software and/or hardware means, e.g. the hardware means may be a shared clustered core network device. For example, referring to fig. 3, the method for accessing the trunked core network in the same public land mobile network may include:
s301, receiving an access request message of a user terminal (UE) sent by a base station.
The access Request message, that is, attach Request message, is sent to the base station when the user terminal has an attachment requirement, and is forwarded to the shared cluster core network by the base station. For example, the Attach Request message may be carried in a Initial UE Message message and sent to the shared cluster core network, which is only illustrated in turn, but the embodiment of the present application is not limited thereto.
S302, when the shared cluster core network supports cluster core network reselection migration, responding to the access request message, and acquiring a target cluster core network to which the UE is to be accessed.
For example, when the shared trunking core network supports the trunking core network reselection migration, it means that the shared trunking core network supports the currently accessed user terminal to reselect the trunking core network. When a target cluster core network to which a user terminal is to be accessed is acquired, an authentication request message can be sent to a home subscriber server corresponding to the UE, and a target terminal Usage Type UE Usage Type corresponding to the UE returned by the home subscriber server is acquired; or, the target terminal use type corresponding to the UE, which is prestored in the shared cluster core network, is obtained. And determining a target special cluster core network corresponding to the target terminal use type according to the target terminal use type and a mapping relation between the pre-stored terminal use type and the special cluster core network.
It can be understood that, if the UE Usage Type corresponding to the UE is pre-stored in the shared trunking core network, the UE Usage Type corresponding to the UE may be directly obtained in the shared trunking core network. If the UE Usage Type corresponding to the UE is not stored in the shared cluster core network in advance, the UE Usage Type needs to be acquired from the home subscriber server hss corresponding to the user terminal. For example, an authentication request message may be sent to the home subscriber server hss to obtain the UE Usage Type corresponding to the user terminal. The authentication request message may be AIR (Authentication Information Requesut) message or AIA message, and the specific authentication request message may be set according to actual situations, which is not particularly limited in the embodiment of the present application. It will be appreciated that the authentication request message is used for authentication of the user terminal by the home subscriber server hss.
For example, the mapping relationship between the UE Usage Type and the DTCN may be set when configuring the DTCN for the UE, and the embodiment of the present application does not specifically limit the mapping relationship.
In the embodiment of the application, the target special cluster core network corresponding to the user terminal is pushed out by acquiring the UE Usage Type and determining according to the UE Usage Type, so that a reselection request message can be sent to the base station according to the target special cluster core network to access the user terminal into the corresponding special cluster core network.
S303, if the target trunking core network is the target private trunking core network, sending a reselection request message carrying an identifier of the target private trunking core network to the base station, wherein the reselection request message is used for indicating the base station to access the UE to the target private trunking core network, and the target private trunking core network and the shared trunking core network belong to the same public land mobile network.
For example, the reselection request message may further include an initial user terminal message Initial UE Message, a target mobility management group identifier MMEGI corresponding to the target dedicated trunking core network, and a target global unique temporary identifier GUTI; the initial user terminal message carries the terminal use type, and the target mobile management group identification code and the target global unique temporary identification are used for verifying whether the target special cluster core network is allowed to be accessed for the UE.
The initial ue message Initial UE Message is the same as Initial UE Message sent by the base station to the shared trunking core network in step S301, which is not limited in this embodiment of the present application.
In the embodiment of the application, the authentication accuracy of the target special cluster core network is higher by carrying Initial UE Message, MMEGI and Additional GUTI in the reselection request message, so that the user terminal is accessed to the correct special cluster core network.
For example, when receiving the reselection request message, the base station may directly forward the reselection request message to the corresponding target dedicated trunking core network according to the identifier of the target dedicated trunking core network carried in the reselection request message, so that the UE accesses the target dedicated trunking core network.
Therefore, the method for accessing the trunking core network in the same public land mobile network provided by the embodiment of the application is applied to the sharing trunking core network equipment. The method comprises the steps of receiving an access request message of a user terminal (UE) sent by a base station; when the shared cluster core network supports the cluster core network reselection migration, responding to an access request message, and acquiring a target cluster core network to which the UE is to be accessed; if the target trunking core network is the target private trunking core network, a reselection request message carrying the identifier of the target private trunking core network is sent to the base station, wherein the reselection request message is used for indicating the base station to access the UE to the target private trunking core network, and the target private trunking core network and the shared trunking core network belong to the same public land mobile network. The technical scheme provided by the embodiment of the application can switch the user terminal currently accessed into the shared cluster core network to the special cluster core network which is accessed to the same PLMN and belongs to the shared cluster core network and can provide service for the user terminal, realizes that the shared cluster core network and the special cluster core network in the same PLMN are not mutually influenced, and is beneficial to the operation and maintenance of the cluster core network in the OLMN.
In another embodiment of the present application, if the target trunking core network is a shared trunking core network, the UE and the shared trunking core network do not perform any operation, i.e. the UE is still connected to the shared trunking core network, and service is provided to the UE through the shared trunking core network. During the movement of the user terminal, there may be a situation that the location of the user terminal is not in the service area of the current cluster core network, and the user terminal needs to be switched to other cluster core networks.
For example, during the movement of the user terminal, the position of the UE is detected in real time. When the current position of the UE is detected to exceed the service area of the currently accessed shared cluster core network, acquiring a special cluster core network to be accessed corresponding to the current position of the UE; and sending a reselection request message carrying an identifier of the special cluster core network to be accessed to a base station corresponding to the special cluster core network to be accessed, wherein the reselection request message is used for indicating the base station to access the UE to the special cluster core network to be accessed.
When the special cluster core network to be accessed corresponding to the current position of the UE is obtained, a domain name system (Domain Name System, DNS for short) corresponding to the user terminal can be queried by using the UE Usage Type as a parameter to search a destination side DTCN, namely the DTCN to be accessed. And sending a reselection request message carrying the identifier of the special cluster core network to be accessed to the base station corresponding to the DTCN to be accessed so as to access the user terminal to the DTCN to be accessed. The method for accessing the DTCN to be accessed can refer to the method for accessing the target dedicated cluster core network, and the embodiment of the present application is not described herein.
In the embodiment of the application, the user terminal can be accessed into the special cluster core network at the current position in the moving process of the user terminal, so that the switching between the shared cluster core network and the special cluster core network is realized, and the user terminal always obtains better network service in the moving process, thereby improving the user experience.
Fig. 4 is a flow chart of a method for accessing a trunking core network in the same public land mobile network, which is applied to a private trunking core network device according to an embodiment of the present application. The method of accessing the clustered core network in the same public land mobile network may be performed by software and/or hardware means, e.g. a dedicated clustered core network device. For example, referring to fig. 4, the method for accessing the trunked core network in the same public land mobile network may include:
s401, receiving a reselection request message which is sent by a base station and carries an identifier of a target special cluster core network, wherein the reselection request message is sent to the base station by a shared cluster core network which is accessed by a user terminal UE currently.
For example, the reselection request message sent by the base station and carrying the identifier of the target dedicated trunking core network may be referred to the description of the above embodiment, which is not limited in any way by the embodiment of the present application.
S402, judging whether the special cluster core network allows the UE to access according to the reselection request message.
For example, when judging whether the dedicated cluster core network allows the UE to access according to the reselection request message, the identifier of the target dedicated cluster core network corresponding to the terminal usage type may be determined according to the terminal usage type carried by the initial user terminal message in the reselection request message and the mapping relationship between the pre-stored terminal usage type and the dedicated cluster core network; judging whether the identification of the target special cluster core network is consistent with the identification of the special cluster core network, whether the identification code of the target mobile management group in the reselection request message is consistent with the identification code of the mobile management group corresponding to the special cluster core network, and whether the target global unique temporary identification in the reselection request message is consistent with the global unique temporary identification corresponding to the special cluster core network; if the identification of the target special cluster core network is consistent with the identification of the special cluster core network, the identification code of the target mobile management group is consistent with the identification code of the mobile management group, and the target global unique temporary identification is consistent with the global unique temporary identification, determining that the special cluster core network allows the UE to access.
In the embodiment of the application, the accuracy of determining that the special cluster core network allows the UE to be accessed can be effectively improved by verifying the identifier of the special cluster core network, the mobile management group identifier Initial UE Message, the MMEGI and the globally unique temporary identifier Additional GUTI.
It can be understood that if the UE is not allowed to access by the dedicated trunking core network, a message for rejecting access is sent to the base station, and if the UE is allowed to access by the dedicated trunking core network, the following step S403 is executed:
s403, if the special cluster core network allows the UE to access, the UE is accessed to the special cluster core network.
For example, after the UE is accessed to the dedicated trunked core network, the attachment procedure of the UE may be continued.
Therefore, the method for accessing the trunking core network in the same public land mobile network provided by the embodiment of the application is applied to the special trunking core network equipment, and the method is characterized in that a reselection request message carrying the identifier of the target special trunking core network is sent to the base station by receiving the reselection request message which is sent by the base station and is sent to the base station by the shared trunking core network currently accessed by the user terminal UE; judging whether the special cluster core network allows the UE to access according to the reselection request message; if the special cluster core network allows the UE to access, the UE is accessed to the special cluster core network. According to the method for accessing the trunking core network in the same public land mobile network, the special trunking core network equipment can verify the reselection request message sent by the received base station, and when the special trunking core network is determined to allow the UE to access, the UE is accessed to the special trunking core network, so that the user terminal is switched from the shared trunking core network to the special trunking core network, and the influence of the user terminal on the shared trunking core network can be avoided.
In another embodiment of the present application, after the UE accesses to the dedicated trunking core network, along with the movement of the UE, the current location of the UE may exceed the service area of the dedicated trunking core network, and if the dedicated trunking core network is not deployed in the current location area, the UE needs to be switched to the shared trunking core network at the current location, so that the UE obtains better service.
For example, when detecting that the current position of the UE exceeds the service area of the currently accessed dedicated trunking core network, acquiring a base station corresponding to the current position of the UE; and sending an attachment request message of the UE to a base station corresponding to the current position of the UE, wherein the attachment request message comprises an access request message of the UE, and the attachment request message is used for indicating the UE to access a shared cluster core network of the base station corresponding to the current position of the UE.
In the embodiment of the application, the user terminal can be timely switched from the special cluster core network to the shared cluster core network at the current position by detecting the current position of the user terminal in real time, so that the user terminal can obtain better network service and the user experience can be effectively improved.
In order to facilitate understanding of the method for accessing the trunked core network in the same public land mobile network provided by the embodiment of the present application, in the following, interactions among the user terminal, the base station, the shared trunked core network, the dedicated trunked core network, and the server will be taken as an example, and the technical solution provided by the embodiment of the present application will be described in detail, where the shared trunked core network and the dedicated trunked core network belong to a unified PLMN. Fig. 5 is an interaction schematic diagram of a method for accessing a trunked core network in the same public land mobile network according to an embodiment of the present application. As shown in fig. 5, the method for accessing the trunked core network in the same public land mobile network may include the following steps:
S501, the user terminal sends an attachment request message to the base station.
S502, the base station sends an access request message to the shared cluster core network.
For example, the access Request message sent by the base station to the shared cluster core network may be a forwarded Attach Request message or a Initial UE Message message carrying the Attach Request message.
When the UE initially accesses the network, if the RAN side cannot select the special cluster core network corresponding to the UE according to the PLMN, the TCN of the shared cluster core network can be selected as the TCN accessed by the UE. When the TCN receives the Attach Request message sent by the T-eNB, judging whether the TCN supports the cluster core network reselection migration. And if the TCN supports the reselection migration of the cluster core network, acquiring the DTCN corresponding to the UE.
S503, the shared cluster core network sends an authentication request message to the server.
For example, when the TCN configuration policy is to obtain the UE Usage Type from the hss, the TCN sends an AIA message or an AIR message to the hss to obtain the UE Usage Type.
S504, the server sends the user usage type to the shared cluster core network.
For example, the hss sends the UE Usage Type to the TCN according to the received AIA message or the AIR message, so that the TCN determines whether the UE has a corresponding DTCN according to the UE Usage Type, if the UE does not have a corresponding DTCN, it may be determined that the TCN may serve the UE, and if the UE has a corresponding DTCN, it may be determined that the TCN may not serve the UE, then the following step S505 is executed.
S505, the shared cluster core network sends a reselection request message to the base station.
For example, when the TCN does not serve the UE, the TCN sends Reroute NAS Request a message to the T-eNB, where the message carries the original Initial UE Message message, the MMEGI and the Additional GUTI under the DTCN of the dedicated trunking core network to which the terminal belongs.
S506, the base station forwards the reselection request message carrying the identifier of the special cluster core network to the special cluster core network.
S507, the special cluster core network verifies the information carried in the reselection request message, and accesses the user terminal when the verification is successful.
For example, when receiving the Initial UE Message message forwarded by the T-eNB, the DTCN may use Initial UE Message message carrying UE Usage Type to perform DTCN reselection determination, and when the MMEGI in the Reroute NAS Request message is consistent with the MMEGI in the DTCN and the Additional GUTI in the Reroute NAS Request message is consistent with the Additional GUTI in the DTXN, verification is successful, and the UE may be accessed to the DTCN. If the MMEGI in the Reroute NAS Request message is inconsistent with the MMEGI in the DTCN and/or if the Additional GUTI in the Reroute NAS Request message is inconsistent with the Additional GUTI in the DTXN, the authentication fails, i.e. it is determined that the DTCN cannot serve the UE. At this time, the DTCN may send a reject access message to the base station. And may carry Back off timer cells in a reject access message according to the local parameter configuration.
It can be appreciated that after determining that the DTCN may serve the UE, the DTCN selects the SGW and PGW for the UE for the deployment in one, and completes the subsequent attachment procedure.
In summary, according to the technical solution provided in the embodiment of the present application, when the user terminal deployed with the DTCN and the user terminal not deployed with the DTCN access the network by using the same radio access technology, the RAN side cannot distinguish whether the terminal user has the corresponding DTCN according to the PLMN. The TCN can identify the DTCN to which the user terminal belongs through the UE Usage Type signed by the user terminal, performs a DTCN reselection flow, and accesses the specific user terminal to the specific DTCN for service. The impact of the user terminal to the TCN can be effectively avoided, so that the DTCN service and the TCN service are not affected by each other, and the operation and maintenance of the service are convenient.
Fig. 6 is a schematic structural diagram of an access trunking core network device 60 in the same public land mobile network according to an embodiment of the present application, and the access trunking core network device in the same public land mobile network is a shared trunking core network device, as shown in fig. 6, the access trunking core network device 60 in the same public land mobile network may include:
a receiving module 601, configured to receive an access request message of a user terminal UE sent by a base station;
An obtaining module 602, configured to, when the shared trunking core network supports trunking core network reselection migration, obtain a target trunking core network to which the UE is to be connected in response to the access request message;
and the reselection access module 603 is configured to send a reselection request message carrying an identifier of the target dedicated trunked core network to the base station when the target trunked core network is the target dedicated trunked core network, where the reselection request message is used to instruct the base station to access the UE to the target dedicated trunked core network, and the target dedicated trunked core network and the shared trunked core network belong to the same public land mobile network.
Optionally, the obtaining module 602 is specifically configured to send an authentication request message AIR to a home subscriber server corresponding to the UE, and obtain a target terminal usage type corresponding to the UE returned by the home subscriber server; or, obtaining a target terminal use type which is prestored in a shared cluster core network and corresponds to the UE; and determining a target special cluster core network corresponding to the target terminal use type according to the target terminal use type and a mapping relation between the pre-stored terminal use type and the special cluster core network.
Optionally, the reselection request message includes an initial user terminal message, a target mobility management group identification code corresponding to a target dedicated cluster core network, and a target global unique temporary identifier; the initial user terminal message carries the terminal use type, and the target mobile management group identification code and the target global unique temporary identification are used for verifying whether the target special cluster core network is allowed to be accessed for the UE.
Optionally, the apparatus further includes a switching module 604, where the switching module 604 is configured to provide services for the UE through the shared trunked core network when the target trunked core network is the shared trunked core network, and detect the location of the UE in real time. When the current position of the UE is detected to exceed the service area of the currently accessed shared cluster core network, acquiring a special cluster core network to be accessed corresponding to the current position of the UE; and sending a reselection request message carrying an identifier of the special cluster core network to be accessed to a base station corresponding to the special cluster core network to be accessed, wherein the reselection request message is used for indicating the base station to access the UE to the special cluster core network to be accessed.
The device for accessing the trunking core network in the same public land mobile network provided by the embodiment of the application can execute the technical scheme of the method for accessing the trunking core network in the same public land mobile network applied to the shared trunking core network in any embodiment, and the implementation principle and beneficial effects of the method are similar to those of the method for accessing the trunking core network in the same public land mobile network, and can be referred to the implementation principle and beneficial effects of the method for accessing the trunking core network in the same public land mobile network, and are not repeated herein.
Fig. 7 is a schematic structural diagram of another embodiment of an access trunking core network device 70 in the same public land mobile network, where the access trunking core network device in the same public land mobile network is a dedicated trunking core network device, and referring to fig. 7, the access trunking core network device 70 in the same public land mobile network may include:
the message receiving module 701 is configured to receive a reselection request message sent by a base station and carrying an identifier of a target dedicated trunking core network, where the reselection request message is sent to the base station by a shared trunking core network currently accessed by the user equipment UE;
a judging module 702, configured to judge whether the UE is allowed to access by the dedicated trunking core network according to the reselection request message;
the network access module 703 is configured to access the UE to the dedicated trunking core network when the dedicated trunking core network allows the UE to access.
Optionally, the determining module 702 is specifically configured to determine, according to the terminal usage type carried by the initial user terminal message in the reselection request message and a mapping relationship between the pre-stored terminal usage type and the dedicated trunking core network, an identifier of the target dedicated trunking core network corresponding to the terminal usage type. Judging whether the identification of the target special cluster core network is consistent with the identification of the special cluster core network, whether the identification code of the target mobile management group in the reselection request message is consistent with the identification code of the mobile management group corresponding to the special cluster core network, and whether the target global unique temporary identification in the reselection request message is consistent with the global unique temporary identification corresponding to the special cluster core network. And when the identification of the target special cluster core network is consistent with the identification of the special cluster core network, the identification code of the target mobile management group is consistent with the identification code of the mobile management group, and the target global unique temporary identification is consistent with the global unique temporary identification, determining that the special cluster core network allows the UE to access.
Optionally, the apparatus further includes a network switching module 704, where the network switching module 703 is configured to obtain a base station corresponding to a current location of the UE when detecting that the current location of the UE exceeds a service area of a dedicated trunking core network currently accessed; and sending an attachment request message of the UE to a base station corresponding to the current position of the UE, wherein the attachment request message comprises an access request message of the UE, and the attachment request message is used for indicating the UE to access a shared cluster core network of the base station corresponding to the current position of the UE.
The device for accessing the trunking core network in the same public land mobile network provided by the embodiment of the application can execute the technical scheme of the method for accessing the trunking core network in the same public land mobile network applied to the private trunking core network in any embodiment, and the implementation principle and the beneficial effects of the method are similar to those of the method for accessing the trunking core network in the same public land mobile network, and can refer to the implementation principle and the beneficial effects of the method for accessing the trunking core network in the same public land mobile network, and are not repeated herein.
Fig. 8 is a schematic structural diagram of an electronic device according to the present application. As shown in fig. 8, the electronic device 800 may include: at least one processor 801 and a memory 802.
A memory 802 for storing programs. In particular, the program may include program code including computer-operating instructions.
Memory 802 may comprise high-speed RAM memory or may also include non-volatile memory (non-volatile memory), such as at least one disk memory.
The processor 801 is configured to execute the computer-executable instructions stored in the memory 802 to implement the method for accessing the trunked core network in the same public land mobile network as described in the foregoing method embodiment. The processor 801 may be a central processing unit (Central Processing Unit, abbreviated as CPU), or an application specific integrated circuit (Application Specific Integrated Circuit, abbreviated as ASIC), or one or more integrated circuits configured to implement embodiments of the present application. Specifically, when the method for accessing the trunking core network in the same public land mobile network described in the foregoing method embodiment is implemented, the electronic device may share electronic devices with processing functions, such as trunking core network devices, dedicated trunking core network devices, and the like.
Optionally, the electronic device 800 may also include a communication interface 803. In a specific implementation, if the communication interface 803, the memory 802, and the processor 801 are implemented independently, the communication interface 803, the memory 802, and the processor 801 may be connected to each other and perform communication with each other through buses. The bus may be an industry standard architecture (Industry Standard Architecture, abbreviated ISA) bus, an external device interconnect (Peripheral Component, abbreviated PCI) bus, or an extended industry standard architecture (Extended Industry Standard Architecture, abbreviated EISA) bus, among others. Buses may be divided into address buses, data buses, control buses, etc., but do not represent only one bus or one type of bus.
Alternatively, in a specific implementation, if the communication interface 803, the memory 802, and the processor 801 are implemented on a single chip, the communication interface 803, the memory 802, and the processor 801 may complete communication through internal interfaces.
The present application also provides a computer-readable storage medium, which may include: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (RAM, random Access Memory), a magnetic disk or an optical disk, etc., in which program codes may be stored, and in particular, the computer-readable storage medium stores program instructions for the methods in the above embodiments.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present application, and not for limiting the same; although the application has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the application.

Claims (11)

1. The method for accessing the trunking core network in the same public land mobile network is characterized by being applied to shared trunking core network equipment and comprising the following steps:
receiving an access request message of a user terminal (UE) sent by a base station;
when the shared cluster core network supports cluster core network reselection migration, responding to the access request message, and acquiring a target cluster core network to be accessed by the UE;
and if the target cluster core network is a target special cluster core network, sending a reselection request message carrying an identifier of the target special cluster core network to a base station, wherein the reselection request message is used for indicating the base station to access the UE to the target special cluster core network, and the target special cluster core network and the shared cluster core network belong to the same public land mobile network.
2. The method according to claim 1, wherein the obtaining the target cluster core network to which the UE is to access comprises:
sending an authentication request message to a home subscriber server corresponding to the UE, and acquiring a target terminal use type corresponding to the UE returned by the home subscriber server;
or alternatively, the first and second heat exchangers may be,
acquiring a target terminal use type corresponding to the UE, which is prestored in the shared cluster core network;
And determining a target special cluster core network corresponding to the target terminal use type according to the target terminal use type and a mapping relation between the pre-stored terminal use type and the special cluster core network.
3. The method according to claim 2, wherein the reselection request message includes an initial user terminal message, a target mobility management group identification code corresponding to the target dedicated cluster core network, and a target globally unique temporary identity;
the initial user terminal message carries a terminal use type, and the target mobile management group identification code and the target global unique temporary identifier are used for verifying whether the target special cluster core network is allowed to be accessed to the UE.
4. A method according to any one of claims 1-3, wherein the method further comprises:
if the target cluster core network is a shared cluster core network, providing service for the UE through the shared cluster core network, and detecting the position of the UE in real time;
when the current position of the UE is detected to exceed the service area of the currently accessed shared cluster core network, acquiring a special cluster core network to be accessed corresponding to the current position of the UE;
And sending a reselection request message carrying an identifier of the to-be-accessed special cluster core network to a base station corresponding to the to-be-accessed special cluster core network, wherein the reselection request message is used for indicating the base station to access the UE to the to-be-accessed special cluster core network.
5. The method for accessing the trunking core network in the same public land mobile network is characterized by being applied to special trunking core network equipment and comprising the following steps:
receiving a reselection request message which is sent by a base station and carries an identifier of a target special cluster core network, wherein the reselection request message is sent to the base station by a shared cluster core network which is accessed by a user terminal (UE) currently;
judging whether the special cluster core network allows the UE to access according to the reselection request message;
and if the special cluster core network allows the UE to be accessed, accessing the UE to the special cluster core network.
6. The method according to claim 5, wherein said determining whether the UE is allowed to access by the dedicated trunked core network according to the reselection request message comprises:
determining the identification of a target special cluster core network corresponding to the terminal use type according to the terminal use type carried by the initial user terminal message in the reselection request message and the mapping relation between the pre-stored terminal use type and the special cluster core network;
Judging whether the identification of the target special cluster core network is consistent with the identification of the special cluster core network, whether the identification code of the target mobile management group in the reselection request message is consistent with the identification code of the mobile management group corresponding to the special cluster core network, and whether the target global unique temporary identification in the reselection request message is consistent with the global unique temporary identification corresponding to the special cluster core network;
and if the identification of the target special cluster core network is consistent with the identification of the special cluster core network, the identification code of the target mobile management group is consistent with the identification code of the mobile management group, and the target global unique temporary identification is consistent with the global unique temporary identification, determining that the special cluster core network allows the UE to be accessed.
7. The method according to claim 5 or 6, characterized in that after the UE has accessed the dedicated trunked core network, the method further comprises:
when detecting that the current position of the UE exceeds the service area of the currently accessed special cluster core network, acquiring a base station corresponding to the current position of the UE;
and sending an attachment request message of the UE to a base station corresponding to the current position of the UE, wherein the attachment request message comprises an access request message of the UE, and the attachment request message is used for indicating the UE to access a shared cluster core network of the base station corresponding to the current position of the UE.
8. An access cluster core network device in the same public land mobile network, comprising:
the receiving module is used for receiving an access Request message Attach Request of a user terminal (UE) sent by a base station;
the acquisition module is used for responding to the access request message when the shared cluster core network supports cluster core network reselection migration, and acquiring a target cluster core network to be accessed by the UE;
and the reselection access module is used for sending a reselection request message carrying the identifier of the target special cluster core network to the base station when the target cluster core network is the target special cluster core network, wherein the reselection request message is used for indicating the base station to access the UE to the target special cluster core network, and the target special cluster core network and the shared cluster core network belong to the same public land mobile network.
9. An access cluster core network device in the same public land mobile network, comprising:
the message receiving module is used for receiving a reselection request message which is sent by a base station and carries the identifier of a target special cluster core network, wherein the reselection request message is sent to the base station by a shared cluster core network which is accessed by a user terminal (UE) currently;
The judging module is used for judging whether the UE is allowed to be accessed by the special cluster core network according to the reselection request message;
and the network access module is used for accessing the UE to the special cluster core network when the special cluster core network allows the UE to access.
10. An electronic device, comprising: a processor, and a memory communicatively coupled to the processor;
the memory stores computer-executable instructions;
the processor executes computer-executable instructions stored in the memory to implement the method of any one of claims 1-4 or claims 5-7.
11. A computer readable storage medium having stored therein computer executable instructions which when executed by a processor are adapted to carry out the method of any one of claims 1-4 or claims 5-7.
CN202210174894.0A 2022-02-24 2022-02-24 Method and device for accessing cluster core network in same public land mobile network Pending CN116709452A (en)

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