WO2016049888A1 - 专用网络切换方法、专用网络类型通知方法及设备 - Google Patents

专用网络切换方法、专用网络类型通知方法及设备 Download PDF

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Publication number
WO2016049888A1
WO2016049888A1 PCT/CN2014/088002 CN2014088002W WO2016049888A1 WO 2016049888 A1 WO2016049888 A1 WO 2016049888A1 CN 2014088002 W CN2014088002 W CN 2014088002W WO 2016049888 A1 WO2016049888 A1 WO 2016049888A1
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WO
WIPO (PCT)
Prior art keywords
network element
dedicated
information
target
type
Prior art date
Application number
PCT/CN2014/088002
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English (en)
French (fr)
Inventor
舒林
曹龙雨
朱奋勤
Original Assignee
华为技术有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to EP14903279.9A priority Critical patent/EP3193531B1/en
Priority to KR1020177011572A priority patent/KR101970627B1/ko
Priority to CN201911229293.XA priority patent/CN110944366B/zh
Priority to CN201480064792.7A priority patent/CN105993194B/zh
Priority to AU2014408102A priority patent/AU2014408102B2/en
Priority to JP2017517115A priority patent/JP6498757B2/ja
Application filed by 华为技术有限公司 filed Critical 华为技术有限公司
Priority to PCT/CN2014/088002 priority patent/WO2016049888A1/zh
Priority to BR112017006459-6A priority patent/BR112017006459B1/pt
Priority to RU2017115060A priority patent/RU2680086C2/ru
Publication of WO2016049888A1 publication Critical patent/WO2016049888A1/zh
Priority to US15/473,850 priority patent/US10701605B2/en
Priority to US16/901,892 priority patent/US20200383023A1/en

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    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/12Reselecting a serving backbone network switching or routing node
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/12Reselecting a serving backbone network switching or routing node
    • H04W36/125Reselecting a serving backbone network switching or routing node involving different types of service backbones
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W36/00Hand-off or reselection arrangements
    • H04W36/34Reselection control
    • H04W36/36Reselection control by user or terminal equipment
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/14Backbone network devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/18Service support devices; Network management devices
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W88/00Devices specially adapted for wireless communication networks, e.g. terminals, base stations or access point devices
    • H04W88/02Terminal devices

Definitions

  • the present invention relates to the field of communications technologies, and in particular, to a private network switching method, a dedicated network type notification method, and a device.
  • UE user equipment
  • machine type communication MTC
  • mobile virtual network communication public safety communication
  • CN core network
  • CN type dedicated core network type
  • a dedicated core network element for the UE, including the mobile management network element, the data gateway, etc.
  • the core network element network specially deployed for it, it helps operators to carry out targeted management and maintenance for different types of UEs, and is dedicated to private networks, thereby improving the efficiency of massive UE access mobility management and session management. Reduce network maintenance costs.
  • Type UEs require dedicated network management.
  • the embodiment of the invention provides a dedicated network type notification method, a dedicated network switching method and a device, which are used to ensure that the UE is switched to a dedicated CN network element corresponding to the CN type during the handover process.
  • a core network CN network element device including:
  • a determining module configured to determine, according to the CN type information received by the receiving module, identifier information of a second dedicated CN network element that supports the CN type indicated by the CN type information, where the second dedicated CN network element refers to a dedicated CN network element that provides a service for the target cell where the UE is located after the handover;
  • a switching module configured to switch the UE to the second dedicated CN network element corresponding to the identifier information according to the identifier information determined by the determining module.
  • the determining module is specifically configured to:
  • the determining module is specifically configured to:
  • the configuration information is Include at least one dedicated CN network element capable of providing service to the UE Correspondence between the identification information and the supported CN type information.
  • the determining module is further configured to locally obtain the preset configuration information from the CN network element network device;
  • the determining module is further configured to:
  • the configuration information specifically includes:
  • the receiving module is specifically configured to:
  • the identifier information is address information
  • the switching module is specifically configured to:
  • the UE forwarding, according to the address information, the forwarding redistribution request message to a second dedicated CN network element corresponding to the address information, and returning, in the second dedicated CN network element, a forwarding redistribution response message to the first dedicated CN
  • the UE is switched by the first dedicated CN network element to the second dedicated CN network element.
  • the identifier information is a unique network element identifier
  • the switching module is specifically configured to:
  • the target base station sends the forwarding reassignment request message Sending to the second dedicated CN network element corresponding to the unique network element identifier, after the second dedicated CN network element replies and forwards the reassignment response message to the first dedicated CN network element, by the first dedicated CN
  • the network element switches the UE to the second dedicated CN network element.
  • the unique network element identifier is a globally unique mobility management entity identifier; or is a network resource identifier.
  • a dedicated CN network element device including:
  • An acquiring module configured to determine a target CN network element that provides a service for the target cell where the user equipment UE is located after the handover is completed, and acquires CN type information of the UE;
  • a sending module configured to send a forwarding redistribution request message to the target CN network element, where the forwarding redistribution request message carries the CN type information acquired by the acquiring module.
  • the receiving module is further configured to:
  • a handover request message for switching the UE to a target cell where the source base station refers to a base station serving the source cell where the UE is located in the handover process.
  • a private network switching method including:
  • the target core network CN network element receives CN type information of the user equipment UE that is sent by the first dedicated CN network element, and the first dedicated CN network element refers to a dedicated CN network that provides services for the source cell where the UE is located in the handover process. yuan;
  • the target CN network element Determining, by the target CN network element, identification information of a second dedicated CN network element supporting a CN type indicated by the CN type information according to the CN type information, where the second dedicated CN network element refers to completion of handover by the UE a dedicated CN network element that provides services for the target cell in the future;
  • the target CN network element switches the UE to the second dedicated CN network element corresponding to the identifier information according to the identifier information.
  • the target CN network element determines, according to the CN type information, identifier information of a second dedicated CN network element that supports the CN type indicated by the CN type information, include:
  • the target CN network element determines its own identification information as the identification information of the second dedicated CN network element
  • the target CN network element determines, according to the CN type information, identifier information of a second dedicated CN network element that supports the CN type indicated by the CN type information.
  • the target CN network element determines, according to the CN type information, a second dedicated that supports the CN type indicated by the CN type information.
  • the identification information of the CN network element includes:
  • the configuration information includes a correspondence between the identifier information of the at least one dedicated CN network element that can provide the service for the UE and the supported CN type information.
  • the configuration information is preset in the target CN network element
  • the configuration information is obtained by the target CN network element in the domain name server after determining that the CN type indicated by the CN type information is not supported by the target CN network element.
  • the configuration information specifically includes:
  • the target core network CN network element receives the CN type information of the UE sent by the first dedicated CN network element, include:
  • the target CN network element receives a forwarding redistribution request message sent by the first dedicated CN network element, where the forwarding redistribution request message carries CN type information of the UE.
  • the identifier information is address information
  • the target CN network element switches the UE to the second dedicated CN network element corresponding to the identifier information according to the identifier information, including:
  • the target CN network element Transmitting, by the target CN network element, the forwarding re-allocation request message to the second dedicated CN network element corresponding to the address information, and forwarding the re-allocation response message to the second dedicated CN network element according to the address information.
  • the UE is switched by the first dedicated CN network element to the second dedicated CN network element.
  • the identifier information is a unique network element identifier
  • the target CN network element switches the UE to the second dedicated CN network element corresponding to the identifier information according to the identifier information, including:
  • the target CN network element sends a re-routing command to the target base station, where the re-routing command carries the unique network element identifier and the forwarding re-allocation request message, and the target base station sends the forwarding re-allocation request message
  • the second dedicated CN network element corresponding to the unique network element identifier, after the second dedicated CN network element replies and forwards the reassignment response message to the first dedicated CN network element, by using the first dedicated CN network
  • the UE switches the UE to the second dedicated CN network element.
  • the unique network element identifier is a globally unique mobility management entity identifier; or is a network resource identifier.
  • a private network type notification method including:
  • the first dedicated core network CN network element is determined as a target CN network element that the user equipment UE provides the target cell in the target cell after the handover is completed, and acquires CN type information of the UE, where the first dedicated CN network element refers to Dedicated CN network element that provides service for the source cell where the UE is located in the handover process;
  • the first dedicated CN network element sends a forwarding redistribution request message to the target CN network element, where the forwarding redistribution request message carries the CN type information.
  • the method further includes:
  • the first dedicated CN network element receives a handover request message sent by the source base station serving the source cell to handover the UE to the target cell.
  • the first dedicated CN network element notifies the CN type information of the UE to the target CN network element, and the target CN network element determines a CN type capable of supporting the UE according to the CN type information of the UE.
  • the UE switches to the dedicated CN network element of the CN type supporting the UE during the handover process, and can keep the UE registered in the dedicated CN network corresponding to the CN type to meet the requirements of the operator private network.
  • FIG. 1 is a schematic structural diagram of a CN network element device according to an embodiment of the present invention.
  • FIG. 2 is another schematic structural diagram of a CN network element device according to an embodiment of the present invention.
  • FIG. 3 is a schematic structural diagram of a dedicated CN network element device according to an embodiment of the present invention.
  • FIG. 4 is another schematic structural diagram of a dedicated CN network element device according to an embodiment of the present invention.
  • FIG. 5 is a schematic flowchart of a method for a first private CN network element to notify a UE of a dedicated network type according to an embodiment of the present disclosure
  • FIG. 6 is a schematic flowchart of a method for a UE to switch a private network according to an embodiment of the present invention
  • FIG. 7 is a flowchart of performing dedicated CN network switching in an embodiment of the present invention.
  • FIG. 8 is a flowchart of another process for performing dedicated CN network switching according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of another process of performing dedicated CN network switching according to an embodiment of the present invention.
  • the UE may be any one of the following, and the UE may be static. It can also be mobile.
  • the UE may include, but is not limited to, a station (English: Station), a mobile station (English: Mobile Station), a subscriber unit (English: Subscriber Unit), a personal computer (English: Personal Computer), a laptop computer (English: Laptop Computer) ), Tablet PC (English: Tablet Computer), Netbook (English: Netbook), Terminal (English: Terminal), Cellular Phone (English: Cellular Phone), Handheld Device (English: Handheld), Cordless Phone (English: Cordless Phone) , Personal Digital Assistant (English: Personal Digital Assistant, abbreviation: PDA), data card (English: Data Card), Universal Serial Bus (English: Uninersal Serial Bus, abbreviation: USB) plug-in device, mobile WiFi hotspot device (English: MiFi Devices), smart watches, smart glasses, wireless modems (English: Modem), wireless routers, wireless local loop (English: Wireless Local Loop, abbreviation: WLL) and so on.
  • each UE has a subscribed UE type, and each UE type is provided with a dedicated network service by a dedicated CN network element corresponding to the UE type, and the UE type may also be referred to as a UE usage type, or a UE.
  • the type of service or all other names that can be used to refer to a UE having the same type of communication characteristics, is used by the CN network element or base station to select a dedicated CN network element serving the UE.
  • the CN type of the dedicated CN network element refers to the UE type of the served UE.
  • the CN type of the dedicated CN network element is the UE type, and the UE is provided with the special type.
  • the CN type of the dedicated CN network element of the network service is also referred to as the CN type of the UE. It can be seen that the CN type and the UE type are an equivalent concept, and the two can be used interchangeably.
  • the CN type of the dedicated CN network element serving the UE is “machine type communication MTC”
  • the CN type of the UE is “machine type communication MTC”.
  • the type of the dedicated CN network element is referred to as “CN type”, but it is the UE type of the UE served by the dedicated CN network element, and is used to refer to the same type of communication feature.
  • the UE the person skilled in the art should understand that the CN type in the following embodiments is replaced with the UE type, or replaced with the UE usage type, or replaced with the UE service type, or replaced with all other can be used to refer to the same type of communication.
  • One of the names of the characteristics of the UE obtained The same scheme has the same scope of protection.
  • a dedicated CN network element can serve multiple UE types at the same time, so a dedicated CN network element can have multiple CN types.
  • the application scenario of the present invention is: the UE successfully registers in the dedicated CN network element, and is currently in the connected state. Since the UE removes the service area of the current dedicated CN network element, the current serving base station requests the source dedicated CN network element (ie, the current dedicated The CN network element triggers the handover procedure to switch the UE to the target cell, and the CN type of the UE needs to be notified to the target CN network element before the handover process is performed, and the target CN network element is the source dedicated CN network element according to the existing handover process.
  • the CN network element selected by the selection method of the medium target CN network element can serve the target cell.
  • the source-specific CN network element selects a CN-type dedicated target CN network element capable of serving the UE, that is, the source-dedicated CN network element selects a CN-type dedicated target CN network element supporting the UE for the UE in the handover preparation phase. And then switch the UE to the selected target CN network element.
  • a typical application scenario for deploying a private network is a pool scenario. For the switchover across the pool, you need to configure the CN supported by each CN NE in all neighboring pools on each CN NE in the source pool. Type information. Considering that a pool can have multiple neighboring pools, each pool can have multiple CN network elements. This configuration workload is very large.
  • the source-dedicated CN network element can only select one specific CN network element (such as the default CN network element) in the pool as the target network.
  • the CN type of the target CN network element may not match the CN type of the UE.
  • embodiments of the present invention seek to find new solutions to meet the needs of operators for private network management of different CN type UEs.
  • the first dedicated CN network element refers to a dedicated CN network element serving the source cell where the UE is located in the handover process, that is, the source dedicated CN network element;
  • the second dedicated CN network element refers to a dedicated CN network element serving the target cell where the UE is located after the handover is completed, that is, the target dedicated CN network element;
  • the source base station refers to a base station that provides services for the source cell where the UE is located in the handover process
  • the target base station refers to a base station that provides services for the target cell in which the UE is located after the handover is completed.
  • a CN network element device is provided to implement the function of the target CN network element.
  • the CN network element device mainly includes:
  • the receiving module 101 is configured to receive CN type information of the user equipment UE that is sent by the first dedicated CN network element.
  • the determining module 102 is configured to determine, according to the CN type information received by the receiving module 101, identifier information of a second dedicated CN network element that supports the CN type indicated by the CN type information;
  • the switching module 103 is configured to switch the UE to the second dedicated CN network element corresponding to the identifier information according to the identifier information determined by the determining module 102.
  • the determining module 102 is specifically configured to:
  • the determining module 102 is specifically configured to:
  • the determining module 102 locally obtains the preset configuration information from the CN network element network device.
  • the determining module 102 After determining that the CN network element device does not support the CN type indicated by the CN type information, the determining module 102 queries the domain name server to obtain the configuration information.
  • the configuration information specifically includes:
  • the receiving module 101 is specifically configured to:
  • the identifier information is address information
  • the switching module 103 is specifically configured to:
  • the UE forwarding, according to the address information, the forwarding redistribution request message to a second dedicated CN network element corresponding to the address information, and returning, in the second dedicated CN network element, a forwarding redistribution response message to the first dedicated CN
  • the UE is switched by the first dedicated CN network element to the second dedicated CN network element.
  • the identifier information is a unique network element identifier
  • the switching module 103 is specifically configured to:
  • the target base station sends the forwarding reassignment request message to the unique network element Identifying a corresponding second dedicated CN network element, after the second dedicated CN network element replies and forwards the reassignment response message to the first dedicated CN network element, the first dedicated CN network element switches the UE To the second dedicated CN network element.
  • the unique network element identifier is a globally unique mobility management entity identifier
  • the unique network element identifier is a network resource identifier.
  • the CN network element device mainly includes a processor 201 and a memory connected through a bus. 202 and a transceiver 203, wherein the processor 201 is configured to acquire a program from the memory 202, The specific process is performed in accordance with the program, and the transceiver 203 is configured to receive data and transmit data under the control of the processor 201, as follows:
  • the transceiver 203 is configured to receive CN type information of the user equipment UE that is sent by the first dedicated CN network element.
  • the processor 201 is configured to determine, according to the CN type information received by the transceiver 203, identifier information of a second dedicated CN network element that supports the CN type indicated by the CN type information, according to the identifier information, The UE switches to the second dedicated CN network element corresponding to the identifier information.
  • the processor 201 determines, according to the CN type supported by the CN network element device, whether the CN network element device itself supports the CN type indicated by the CN type information.
  • the processor 201 acquires the identification information of the dedicated CN network element corresponding to the CN type information from the configuration information, as the determined identification information of the second dedicated CN network element supporting the CN type indicated by the CN type information.
  • the configuration information includes a correspondence between the identifier information of the at least one dedicated CN network element that can provide the service for the UE and the supported CN type information.
  • the processor locally obtains the preset configuration information from the CN network element device;
  • the domain name server After determining that the CN network element device does not support the CN type indicated by the CN type information, query the domain name server to obtain the configuration information.
  • the configuration information specifically includes:
  • the transceiver 203 receives a forwarding re-allocation request message sent by the first dedicated CN network element, where the forwarding re-allocation request message carries CN type information of the UE.
  • the identifier information is address information
  • the processor 201 forwards the forwarding redistribution request message to the second dedicated CN network element corresponding to the address information, and returns a forwarding redistribution response message to the second dedicated CN network element according to the address information.
  • the UE is switched by the first dedicated CN network element to the second dedicated CN network element.
  • the identifier information is a unique network element identifier
  • the processor 201 sends a rerouting command to the target base station, where the rerouting command carries the unique network element identifier and the forwarding reassignment request message, and the target base station sends the forwarding reassignment request message to the
  • the second dedicated CN network element corresponding to the unique network element identifier, after the second dedicated CN network element replies and forwards the reassignment response message to the first dedicated CN network element, by the first dedicated CN network element
  • the UE switches to the second dedicated CN network element.
  • the unique network element identifier is a globally unique mobility management entity identifier
  • a dedicated CN network element device for implementing the function of the source-specific CN network element.
  • the dedicated CN network element device mainly includes:
  • the obtaining module 301 is configured to determine a target CN network element that provides a service for the target cell where the user equipment UE is located after the handover is completed, and obtain CN type information of the UE;
  • the sending module 302 is configured to send a forwarding redistribution request message to the target CN network element, where the forwarding redistribution request message carries the CN type information acquired by the acquiring module 301.
  • the method further includes a receiving module 303, configured to:
  • the obtaining module 301 determines the target CN network element serving the target cell where the user equipment UE is located, the handover request message sent by the source base station to switch the UE to the target cell is received.
  • the dedicated CN network element device mainly includes a processor connected through a bus. 401.
  • Receive and send data as follows:
  • the processor 401 is configured to determine a target CN network element that provides a service for the target cell where the user equipment UE is located after the handover is completed, and obtain CN type information of the UE.
  • the transceiver 403 is configured to send a forwarding re-allocation request message to the target CN network element, where the forwarding re-allocation request message carries the CN type information acquired by the processor 401.
  • the transceiver 403 is further configured to: before the processor 401 determines the target CN network element serving the target cell where the user equipment UE is located, receive a handover request message sent by the source base station to switch the UE to the target cell.
  • the detailed method for notifying the dedicated network type of the UE by the first dedicated CN network element is as follows, including:
  • Step 501 The first dedicated CN network element determines a target CN network element that is served by the target cell where the UE is located after the handover is completed, and acquires CN type information of the UE.
  • the target CN network element is selected by the first dedicated CN network element according to the selection method of the target CN network element in the existing handover procedure, and the target CN network element is not necessarily a dedicated CN network element that is consistent with the CN type of the UE.
  • the first dedicated CN network element is determined to be a handover request message sent by the source base station to the UE to be switched to the target cell before the target CN network element that the UE provides the target cell after the handover is completed.
  • the CN type information of the UE is saved on the first dedicated CN network element.
  • Step 502 The first dedicated CN network element sends a forwarding redistribution request message to the target CN network element, where the forwarding redistribution request message carries the CN type information of the UE.
  • the target CN network element determines, according to the CN type of the UE, a dedicated CN network element capable of supporting the CN type to maintain registration of the UE on the corresponding CN type dedicated CN network.
  • Step 601 The target CN network element receives the CN type message of the UE sent by the first dedicated CN network element. interest.
  • the target CN network element receives the forwarding redistribution request message sent by the first dedicated CN network element, where the forwarding redistribution request message carries CN type information of the UE.
  • Step 602 The target CN network element determines, according to the CN type information, identifier information of the second dedicated CN network element that supports the CN type indicated by the CN type information.
  • the target CN network element obtains the identification information of the dedicated CN network element corresponding to the CN type information of the UE from the configuration information, as the identifier of the second dedicated CN network element that supports the CN type indicated by the CN type information.
  • the configuration information includes a correspondence between identifier information of at least one dedicated CN network element capable of serving the UE and CN type information supported by the UE.
  • the configuration information includes a mapping relationship between the identifier information of the at least one dedicated CN network element that can provide the service for the location where the UE is currently located, and the CN type supported by the UE.
  • the location information of the current location of the UE may be obtained from the target cell.
  • the configuration information includes identifier information of each dedicated CN network element included in the resource pool where the target CN network element is located, and is supported by each dedicated CN network element. Correspondence of CN type information.
  • the target CN network element determines, according to the CN type supported by itself, whether it supports the CN type indicated by the CN type information;
  • the target CN network element determines its own identification information as the identification information of the second dedicated CN network element
  • the target CN network element determines, according to the CN type information of the UE, identification information of the second dedicated CN network element supporting the CN type indicated by the CN type information. Specifically, when determining that the network element does not support, the target CN network element obtains one of the identification information of the dedicated CN network element corresponding to the CN type information of the UE from the configuration information according to the CN type information of the UE as the second dedicated CN network. Meta identification information.
  • the manner of obtaining the configuration information includes, but is not limited to, the following two implementation manners:
  • the configuration information is preset in the target CN network element, and the target CN network element is directly obtained from the local;
  • the configuration information is obtained by the target CN network element after determining that the CN type indicated by the CN type information is not supported by the target CN network element.
  • the specific process of the target CN network element obtaining the configuration information from the domain name server is:
  • the target CN network element When the target CN network element determines that it does not support the CN type indicated by the CN type information of the UE, it initiates a query request to the domain name server, and the query request is used to query configuration information of all the dedicated CN network elements that can provide services for the location area where the UE is located.
  • the domain name server returns configuration information to the target CN network element according to the query request, where the configuration information includes identifier information of all dedicated CN network elements that can provide services for the location area where the UE is located, and CN type information supported by the dedicated CN network element. Correspondence relationship.
  • Step 603 The target CN network element switches the UE to the second dedicated CN network element corresponding to the identifier information according to the determined identification information of the second dedicated CN network element.
  • the identifier information of the second dedicated CN network element may be the address information of the second dedicated CN network element, or may be the unique network element identifier of the second dedicated CN network element.
  • the target CN network element switches the UE to the determined identification information of the second dedicated CN network element.
  • the specific process of the corresponding dedicated CN network element is as follows:
  • the target CN network element forwards the forward redistribution request message to the second dedicated CN network element corresponding to the address information according to the determined address information of the second dedicated CN network element, and forwards the redistribution response in the second dedicated CN network element.
  • the UE is switched by the first dedicated CN network element to the second dedicated CN network element.
  • the second dedicated CN network element sends a handover request message to the target base station, and receives a handover request acknowledgement message replied by the target base station, and forwards the reassignment response message to the first dedicated CN network element, where the first dedicated CN network element
  • the UE is switched to the second dedicated CN network element.
  • the target CN network element switches the UE to the determined second dedicated CN network element.
  • the specific process of the second dedicated CN network element corresponding to the identification information is as follows:
  • the target CN network element sends a re-routing command to the target base station, where the re-routing command carries the determined unique network element identifier of the second dedicated CN network element and the forwarding re-allocation request message, and the target base station re-allocates the forwarding request
  • the message is sent to the second dedicated CN network element corresponding to the unique network element identifier, and after the second dedicated CN network element replies and forwards the reassignment response message to the first dedicated CN network element, the UE is configured by the first dedicated CN network element. Switch to the second dedicated CN network element corresponding to the unique network element identifier.
  • the determined unique network element identifier of the second dedicated CN network element is the global unique mobility management entity identifier of the second dedicated CN network element
  • the determined unique network element identifier of the second dedicated CN network element is the network resource identifier of the second dedicated CN network element.
  • the dedicated CN network element in the embodiment of the present invention can be simultaneously deployed in the second generation mobile communication system (2G), the third generation mobile communication system (3G), and the 4G network, and can simultaneously cover the circuit switching (CS). Domain and packet switched (PS) domains.
  • 2G second generation mobile communication system
  • 3G third generation mobile communication system
  • PS packet switched domains.
  • 4G fourth generation mobile communication system
  • MME mobility management entity
  • Step 701 The UE successfully registers in the source private network, and the current UE is in the connected state. Because the UE moves, the service area of the current dedicated CN network element (dedicated MME) is removed, so the source base station (eNodeB) triggers the handover procedure to switch the UE to Target cell. The source eNodeB sends a Handover Required message to the source dedicated MME.
  • the service area of the current dedicated CN network element (dedicated MME) is removed, so the source base station (eNodeB) triggers the handover procedure to switch the UE to Target cell.
  • the source eNodeB sends a Handover Required message to the source dedicated MME.
  • the CN type information of the UE is stored on the source dedicated MME.
  • the target MME obtains, from the configuration information, the address information of the target dedicated CN network element corresponding to the CN type information of the UE, where the configuration information includes address information of one or more dedicated MMEs capable of providing services for the current location area of the UE. Correspondence of supported CN type information.
  • the configuration information needs to be configured with the mapping between the CN type information supported by each MME in the pool and the address information of the MME, so that the corresponding MME can be determined by using the CN type information. Address information.
  • Step 704 The target MME forwards the Forwarding Reassignment Request message to the selected target dedicated MME.
  • Step 705 For the selected target dedicated MME, it is equivalent to receiving the Forwarding Reassignment Request message directly from the source dedicated MME, so the selected target dedicated MME sends a Handover Request message to the target eNodeB to request to establish a context for the UE. And the air interface carries the resource, and the target eNodeB replies with a Handover Request Acknowledge message to the selected target dedicated MME.
  • Step 706 The selected target The dedicated MME directly returns the Forwarding Relocation Response (Forward Relocation Response) message to the source dedicated MME.
  • Forwarding Relocation Response Forward Relocation Response
  • the source-specific MME continues to perform the subsequent PS domain handover procedure, and the UE is switched to the same target dedicated MME as its CN type.
  • the target MME selects the dedicated MME only in the current pool. If there is no corresponding dedicated MME in the pool, the target MME switches according to the normal handover procedure, and the UE switches. To the target MME, the UE enters a cell that cannot provide private network services.
  • Steps 801 to 802 are exactly the same as steps 701 to 702 in the foregoing specific embodiment, and are not repeated here.
  • Step 803 The target MME first checks whether it can serve the CN type indicated by the CN type information, that is, whether the CN type supported by the UE is consistent with the CN type of the UE. If they are consistent, the UE is switched to the normal handover procedure. The target MME is determined. Otherwise, the CN-type target dedicated CN network element capable of serving the UE and supporting the UE is determined according to the CN type information of the UE, and step 804 is performed.
  • the unique network element identifier of the target dedicated MME corresponding to the CN type information is obtained from the configuration information according to the CN type information of the UE, and the preset configuration information includes one or more dedicated services that can provide services for the current location area of the UE.
  • the unique network element identifier is a Globally Unique MME Identifier (GUMMEI).
  • GUMMEI Globally Unique MME Identifier
  • NBI Network Resource Identifier
  • the operator needs to configure a unique network element identifier for each dedicated CN network element in the deployed private network, and select a corresponding dedicated CN network element, for example, reserve a certain number of GUMMEI for a dedicated MME. Reserve a certain number of NRIs for a dedicated SGSN.
  • Step 804 The target MME sends a Reroute Command to the target eNodeB, where the command carries the allocated GUMMEI of the target dedicated MME and the Forward Reassignment Request message received from the source dedicated MME.
  • Step 805 - Step 806 The target eNodeB selects the target dedicated MME according to the GUMMEI, and forwards the Forwarding Reassignment Request message to the selected target dedicated MME.
  • Step 807 For the selected target dedicated MME, it is equivalent to receiving the Forwarding Reassignment Request message directly from the source dedicated MME, so the selected target dedicated MME sends a Handover Request message to the target eNodeB to request to establish for the UE.
  • the context and the air interface carry the resource, and the target eNodeB replies to the Handover Request Acknowledge.
  • the target dedicated MME is selected.
  • Step 808 The selected target dedicated MME directly returns a Forwarding Relocation Response (Direct Forward Relocation Response) message to the source dedicated MME.
  • the source-specific MME continues to perform the handover procedure of the subsequent PS domain, and the UE is switched to the dedicated MME of the same type as the CN of the UE.
  • the target MME selects the dedicated MME only in the resource pool. If there is no corresponding dedicated MME in the resource pool, the target eNodeB sends the forwarding re-allocation request message back to the target MME.
  • the UE is switched to itself according to the normal handover procedure, indicating that the UE enters a cell that cannot provide private network services.
  • the specific process of performing dedicated CN network switching is as follows:
  • Step 901 to step 902 are exactly the same as steps 701 to 702 in the above-mentioned first embodiment, and are not repeated here.
  • Step 903 The target MME first checks whether it can serve the CN type indicated by the CN type information, that is, whether the CN type supported by the UE is consistent with the CN type of the UE. If they are consistent, the UE is switched to the target according to the normal handover procedure. MME; otherwise, the target MME initiates a normal query request to the Domain Name Server (DNS), and aims to find the address information of all MMEs that can serve the location area where the UE is currently located.
  • DNS Domain Name Server
  • Step 904 The DNS returns an MME list information serving the location area according to the requested location area information.
  • the list information includes the CN type information supported by each MME in addition to the address information of each MME.
  • Step 905 The target MME matches the CN type information in the MME list information returned by the DNS according to the CN type information of the UE, finds the address information of the MME that matches the CN type information of the UE, and selects the MME as the target dedicated MME. .
  • Step 906 The target MME forwards the Forwarding Reassignment Request message to the selected target dedicated MME.
  • Step 907 For the selected target dedicated MME, it is equivalent to receiving the Forwarding Reassignment Request message directly from the source dedicated MME, so the selected target dedicated MME sends a Handover Request message to the target eNodeB to request to establish for the UE. Context and air interface bearer The resource, the target eNodeB replies with a Handover Request Acknowledge message to the selected target dedicated MME.
  • Step 908 The selected target dedicated MME directly returns a Forward Relocation Response (Forward Relocation Response) message to the source dedicated MME.
  • the source-specific MME continues to perform the subsequent PS domain handover procedure, and the UE is handed over to the target dedicated MME of the same CN type as the UE.
  • the target MME selects the dedicated MME only in the resource pool. If there is no corresponding dedicated MME in the resource pool, the target MME switches according to the normal handover procedure, and the UE is switched to the MME.
  • the target MME indicates that the UE has entered a cell that cannot provide private network services.
  • the first dedicated CN network element notifies the CN type information of the UE to the target CN network element, and the target CN network element determines a CN type capable of supporting the UE according to the CN type information of the UE.
  • the UE Decoding the second dedicated CN network element of the CN type, and obtaining the identification information of the second dedicated CN network element, and switching the UE to the corresponding dedicated CN network element according to the identification information of the second dedicated CN network element, thereby ensuring
  • the UE switches to the dedicated CN network element of the CN type supporting the UE during the handover process, and can keep the UE registered in the dedicated CN network corresponding to the CN type to meet the requirements of the operator private network.
  • embodiments of the present invention can be provided as a method, system, or computer program product. Accordingly, the present invention may take the form of an entirely hardware embodiment, an entirely software embodiment, or a combination of software and hardware. Moreover, the invention can take the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage and optical storage, etc.) including computer usable program code.
  • the computer program instructions can also be stored in a computer readable memory that can direct a computer or other programmable data processing device to operate in a particular manner, such that the instructions stored in the computer readable memory produce an article of manufacture comprising the instruction device.
  • the apparatus implements the functions specified in one or more blocks of a flow or a flow and/or block diagram of the flowchart.
  • These computer program instructions can also be loaded onto a computer or other programmable data processing device such that a series of operational steps are performed on a computer or other programmable device to produce computer-implemented processing for execution on a computer or other programmable device.
  • the instructions provide steps for implementing the functions specified in one or more of the flow or in a block or blocks of a flow diagram.

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Abstract

本发明公开了一种专用网络切换方法、专用网络类型通知方法及设备,用以确保切换过程中将UE切换到对应CN类型的专用CN网元上。该CN网元设备主要包括:接收模块,用于接收第一专用CN网元发送的用户设备UE的CN类型信息;确定模块,用于根据所述接收模块接收的所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息;切换模块,用于根据所述确定模块确定的所述标识信息,将所述UE切换至所述标识信息对应的所述第二专用CN网元。

Description

专用网络切换方法、专用网络类型通知方法及设备 技术领域
本发明涉及通信技术领域,尤其涉及一种专用网络切换方法、专用网络类型通知方法及设备。
背景技术
随着移动通信网络的演进与新应用的不断出现,用户在不同的应用领域中形成了不同的通信特征,产生了不同的移动通信类型与对应的用户设备(UE)类型,比如:机器类通信(Machine Type Communication,MTC)、移动虚拟网络通信、公共安全通信等。不同的UE类型从核心网(Core Network,CN)侧来看具有不同的通信需求,例如不同的可选特征支持、业务特征需求、可用性需求、拥塞管理机制等。
随着UE类型数量的急剧增加,运营商提出了为不同的UE类型部署不同专用核心网的需求。运营商为具有相同通信特征的UE类型签约一个专用核心网类型(CN type),并为其部署专门的核心网网元,包括移动管理网元,数据网关等,将具有相同CN类型的UE注册在为其专门部署的核心网网元上,有助于运营商对不同类型的UE进行有针对性的管理与维护,专网专用,从而提升对海量UE接入移动管理与会话管理的效率,降低网络的维护成本。
在UE成功注册到一个专用网络后,若UE当前处于连接态且因为移动离开了当前专用CN网元的服务区,则需要触发切换流程将UE切换到目标小区所在的CN网元。根据运营商专网专用的需求,需要尽可能地将该UE保持注册在对应CN类型的专用核心网上,故应该将该UE切换到相同CN类型的目标CN网元上,以满足运营商对不同CN类型UE进行专用网络管理的需求。
在研究过程中,发明人发现现有的切换流程不能确保将连接态UE切换到为其服务的相同CN类型的目标专用CN网元上,不能满足运营商对不同CN 类型UE进行专用网络管理的需求。
发明内容
本发明实施例提供一种专用网络类型通知方法、专用网络切换方法及设备,用以确保切换过程中将UE切换到对应CN类型的专用CN网元上。
本发明实施例提供的具体技术方案如下:
第一方面,提供了一种核心网CN网元设备,包括:
接收模块,用于接收第一专用CN网元发送的用户设备UE的CN类型信息,所述第一专用CN网元指为所述UE在切换过程中所在的源小区提供服务的专用CN网元;
确定模块,用于根据所述接收模块接收的所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述第二专用CN网元指为UE在切换后所在的目标小区提供服务的专用CN网元;
切换模块,用于根据所述确定模块确定的所述标识信息,将所述UE切换至所述标识信息对应的所述第二专用CN网元。
结合第一方面,在第一种可能的实现中,所述确定模块具体用于:
根据所述CN网元设备所支持的CN类型判断所述CN网元设备自身是否支持所述CN类型信息所指示的CN类型;
若支持,确定所述CN网元设备的标识信息为所述第二专用CN网元的标识信息;
若不支持,根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息。
结合第一方面的第一种可能的实现,在第二种可能的实现中,所述确定模块具体用于:
从配置信息中获取所述CN类型信息对应的专用CN网元的标识信息,作为确定的支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述配置信息中包括能够为所述UE提供服务的至少一个专用CN网元 的标识信息与所支持的CN类型信息的对应关系。
结合第一方面的第二种可能的实现,在第三种可能的实现中,所述确定模块还用于从所述CN网元网络设备本地获取预设的所述配置信息;
或者,
所述确定模块还用于:
在确定所述CN网元设备不支持所述CN类型信息所指示的CN类型后,在域名服务器中查询获得所述配置信息。
结合第一方面的第二种可能的实现,在第四种可能的实现中,所述配置信息具体包括:
所述CN网元设备所在资源池中包括的每个专用CN网元的标识信息与每个专用CN网元所支持的CN类型信息的对应关系。
结合第一方面至第四种可能的实现中的任意中,在第五种可能的实现中,所述接收模块具体用于:
接收所述第一专用CN网元发送的转发重分配请求消息,所述转发重分配请求消息中携带有所述UE的CN类型信息。
结合第一方面的第五种可能的实现,在第六种可能的实现中,所述标识信息为地址信息;
所述切换模块具体用于:
根据所述地址信息,转发所述转发重分配请求消息至所述地址信息对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
结合第一方面的第五种可能的实现,在第七种可能的实现中,所述标识信息为唯一网元标识;
所述切换模块具体用于:
向目标基站发送重路由命令,所述重路由命令中携带所述唯一网元标识与所述转发重分配请求消息,由所述目标基站将所述转发重分配请求消息发 送给所述唯一网元标识对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
结合第一方面的第七种可能的实现,在第八种可能的实现中,所述唯一网元标识为全局唯一移动管理实体标识;或为网络资源标识。
第二方面,提供了一种专用CN网元设备,包括:
获取模块,用于确定为用户设备UE在切换完成后所在的目标小区提供服务的目标CN网元,并获取所述UE的CN类型信息;
发送模块,用于向所述目标CN网元发送转发重分配请求消息,所述转发重分配请求消息中携带有所述获取模块获取的所述CN类型信息。
结合第二方面,在第一种可能的实现中,还包括接收模块,用于:
接收源基站发送的将所述UE切换至目标小区的切换请求消息,所述源基站指为所述UE在切换过程中所在的源小区提供服务的基站。
第三方面,提供了一种专用网络切换方法,包括:
目标核心网CN网元接收第一专用CN网元发送的用户设备UE的CN类型信息,所述第一专用CN网元指为所述UE在切换过程中所在的源小区提供服务的专用CN网元;
所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述第二专用CN网元指为UE在切换完成后所在的目标小区提供服务的专用CN网元;
所述目标CN网元根据所述标识信息,将所述UE切换至所述标识信息对应的所述第二专用CN网元。
结合第三方面,在第一种可能的实现中,所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,包括:
所述目标CN网元根据自身所支持的CN类型判断自身是否支持所述CN类型信息所指示的CN类型;
若支持,所述目标CN网元确定自身的标识信息为所述第二专用CN网元的标识信息;
若不支持,所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息。
结合第三方面的第一种可能的实现,在第二种可能的实现中,所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,包括:
所述目标CN网元从配置信息中获取所述CN类型信息对应的专用CN网元的标识信息,作为确定的支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述配置信息中包括能够为所述UE提供服务的至少一个专用CN网元的标识信息与所支持的CN类型信息的对应关系。
结合第三方面的第二种可能的实现,在第三种可能的实现中,所述配置信息预设在所述目标CN网元中;
或者,
所述配置信息由所述目标CN网元在确定自身不支持所述CN类型信息所指示的CN类型后,在域名服务器中查询获得。
结合第三方面的第二种可能的实现,在第四种可能的实现中,所述配置信息具体包括:
所述目标CN网元所在资源池中包括的每个专用CN网元的标识信息与每个专用CN网元所支持的CN类型信息的对应关系。
结合第三方面至第四种可能的实现中的任意一种,在第五种可能的实现中,,所述目标核心网CN网元接收第一专用CN网元发送的UE的CN类型信息,包括:
所述目标CN网元接收所述第一专用CN网元发送的转发重分配请求消息,所述转发重分配请求消息中携带有所述UE的CN类型信息。
结合第三方面的第五种可能的实现,在第六种可能的实现中,所述标识信息为地址信息;
所述目标CN网元根据所述标识信息,将所述UE切换至所述标识信息对应的第二专用CN网元,包括:
所述目标CN网元根据所述地址信息,转发所述转发重分配请求消息至所述地址信息对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
结合第三方面的第五种可能的实现,在第七种可能的实现中,所述标识信息为唯一网元标识;
所述目标CN网元根据所述标识信息,将所述UE切换至所述标识信息对应的第二专用CN网元,包括:
所述目标CN网元向目标基站发送重路由命令,所述重路由命令中携带所述唯一网元标识与所述转发重分配请求消息,由所述目标基站将所述转发重分配请求消息发送给所述唯一网元标识对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
结合第三方面的第七种可能的实现,在第八种可能的实现中,所述唯一网元标识为全局唯一移动管理实体标识;或为网络资源标识。
第四方面,提供了一种专用网络类型通知方法,包括:
第一专用核心网CN网元确定为用户设备UE在切换完成后所在的目标小区提供服务的目标CN网元,并获取所述UE的CN类型信息,所述第一专用CN网元指为所述UE在切换过程中所在的源小区提供服务的专用CN网元;
所述第一专用CN网元向所述目标CN网元发送转发重分配请求消息,所述转发重分配请求消息中携带有所述CN类型信息。
结合第四方面,在第一种可能的实现中,第一核心网CN网元确定为用户设备UE所在的目标小区提供服务的目标CN网元之前,所述方法还包括:
所述第一专用CN网元接收为所述源小区提供服务的源基站发送的将所述UE切换至目标小区的切换请求消息。
基于上述技术方案,本发明实施例中,第一专用CN网元将UE的CN类型信息通知给目标CN网元,由目标CN网元根据UE的CN类型信息确定一个能够支持该UE的CN类型信息指示的CN类型的专用CN网元,并获得该专用CN网元的标识信息作为第二专用CN网元,根据该CN网元的标识信息将UE切换至对应的专用CN网元,从而保证了UE在切换过程中切换至支持该UE的CN类型的专用CN网元,能够保持UE在对应CN类型的专用CN网络中注册,以满足运营商专网专用的需求。
附图说明
图1为本发明实施例中CN网元设备的结构示意图;
图2为本发明实施例中CN网元设备的另一结构示意图;
图3为本发明实施例中专用CN网元设备的结构示意图;
图4为本发明实施例中专用CN网元设备的另一结构示意图;
图5为本发明实施例中第一专用CN网元通知UE的专用网络类型的方法流程示意图;
图6为本发明实施例中UE切换专用网络的方法流程示意图;
图7为本发明实施例中进行专用CN网络切换的流程图;
图8为本发明实施例中另一进行专用CN网络切换的流程图;
图9为本发明实施例中另一进行专用CN网络切换的流程图。
具体实施方式
为了使本发明的目的、技术方案和优点更加清楚,下面将结合附图对本发明作进一步地详细描述,显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例。基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其它实施例,都属于本发明保护的范围。
以下各实施例中,UE可以为以下任意一种,并且UE可以是静态的, 也可以是移动的。UE可以包括但不限于:站台(英文:Station)、移动台(英文:Mobile Station)、用户单元(英文:Subscriber Unit)、个人电脑(英文:Personal Computer)、膝上型电脑(英文:Laptop Computer)、平板电脑(英文:Tablet Computer)、上网本(英文:Netbook)、终端(英文:Terminal)、蜂窝电话(英文:Cellular Phone)、手持设备(英文:Handheld)、无绳电话(英文:Cordless Phone)、个人数字助理(英文:Personal Digital Assistant,缩写:PDA)、数据卡(英文:Data Card)、通用串行总线(英文:Uninersal Serial Bus,缩写:USB)插入设备、移动WiFi热点设备(英文:MiFi Devices)、智能手表、智能眼镜、无线调制解调器(英文:Modem)、无线路由器、无线本地环路(英文:Wireless Local Loop,缩写:WLL)台等。上述UE可以分布于整个无线网络中。
在本发明实施例中,每一个UE有一个签约的UE类型,每一个UE类型由与该UE类型对应的专用CN网元提供专网服务,UE类型,也可以称为UE使用类型,或者UE业务类型,或者其它所有可用于指代具有同一类通信特征的UE的名称,这一名称被CN网元或基站用来选择为该UE服务的专用CN网元。专用CN网元的CN类型是指所服务的UE的UE类型,若一个专用CN网元能够为一个UE类型提供服务,则该专用CN网元的CN类型为该UE类型,为该UE提供专网服务的专用CN网元的CN类型也称为UE的CN类型。可见,CN类型与UE类型是一个等同概念,二者之间可以相互替代使用。
例如:一个UE的UE类型为“机器类通信MTC”,则为该UE提供服务的专用CN网元的CN类型为“机器类通信MTC”,该UE的CN类型为“机器类通信MTC”。
以下各实施例中,为便于直观描述,将专用CN网元的类型称为“CN类型”,但其就是该专用CN网元所服务UE的UE类型,用于指代具有同一类通信特征的UE,本领域技术人员应该明白,将以下各实施例中的CN类型替换为UE类型,或者替换为UE使用类型,或者替换为UE业务类型,或者替换为其它所有可用于指代具有同一类通信特征的UE的名称中的一种,所得到 的为同一方案,具有等同的保护范围。需要说明的是,一个专用CN网元可以同时服务于多个UE类型,故一个专用CN网元可以有多个CN类型。
本发明的应用场景为:UE在专用CN网元成功注册,当前处于连接态,由于UE移出了当前的专用CN网元的服务区,由当前服务基站请求源专用CN网元(即当前的专用CN网元)触发切换流程将该UE切换至目标小区,在执行切换过程之前需要将该UE的CN类型通知给目标CN网元,该目标CN网元为源专用CN网元根据现有切换过程中目标CN网元的选择方法所选择的能够服务于目标小区的CN网元。
现有技术中,源专用CN网元选择能够服务UE的CN类型的专用目标CN网元,即由源专用CN网元在切换准备阶段为UE选择支持该UE的CN类型的专用目标CN网元,然后将UE切换到所选择的该目标CN网元上。
发明人发现完全依赖于源专用CN网元来选择专用目标CN网元的方式存在如下问题:
(1)部署专用网络的典型应用场景为资源池(Pool)场景,对于跨Pool的切换,需要在源Pool中的每个CN网元上配置所有邻近Pool中每个CN网元所支持的CN类型信息,考虑到一个Pool可以有多个邻近的Pool,每个Pool可以有多个CN网元,这个配置工作量会非常大;
(2)若源专用CN网元不支持Pool特性,但目标小区位于Pool中,则该源专用CN网元只能选择该Pool中的一个特定CN网元(比如默认CN网元)作为目标网元,而该目标CN网元的CN类型可能与UE的CN类型不匹配。
据此,本发明实施例旨在寻求新的解决方案,来满足运营商对不同CN类型UE进行专用网络管理的需求。
以下各实施例中,第一专用CN网元指为UE在切换过程中所在的源小区提供服务的专用CN网元,即源专用CN网元;
第二专用CN网元指为UE在切换完成后所在的目标小区提供服务的专用CN网元,即目标专用CN网元;
源基站指为UE在切换过程中所在的源小区提供服务的基站;
目标基站指为UE在切换完成后所在的目标小区提供服务的基站。
本发明第一实施例中,提供了一种CN网元设备,用于实现目标CN网元的功能,如图1所示,该CN网元设备主要包括:
接收模块101,用于接收第一专用CN网元发送的用户设备UE的CN类型信息;
确定模块102,用于根据所述接收模块101接收的所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息;
切换模块103,用于根据所述确定模块102确定的所述标识信息,将所述UE切换至所述标识信息对应的第二专用CN网元。
优选地,所述确定模块102具体用于:
根据所述CN网元设备所支持的CN类型判断所述CN网元设备自身是否支持所述CN类型信息所指示的CN类型;
若支持,确定所述CN网元设备的标识信息为所述第二专用CN网元的标识信息;
若不支持,根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息。
优选地,所述确定模块102具体用于:
从配置信息中获取所述CN类型信息对应的专用CN网元的标识信息,作为确定的支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述配置信息中包括能够为所述UE提供服务的至少一个专用CN网元的标识信息与所支持的CN类型信息的对应关系。
在一个具体实施中,所述确定模块102从所述CN网元网络设备本地获取预设的所述配置信息;
或者,
所述确定模块102在确定所述CN网元设备不支持所述CN类型信息所指示的CN类型后,向域名服务器查询获得所述配置信息。
在一个具体实施中,若所述CN网元设备位于资源池中,则所述配置信息具体包括:
所述CN网元设备所在资源池中包括的每个专用CN网元的标识信息与每个专用CN网元所支持的CN类型信息的对应关系。
优选地,所述接收模块101具体用于:
接收所述第一专用CN网元发送的转发重分配请求消息,所述转发重分配请求消息中携带有所述UE的CN类型信息。
在一个具体实施中,所述标识信息为地址信息;
所述切换模块103具体用于:
根据所述地址信息,转发所述转发重分配请求消息至所述地址信息对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
在另一个具体实施中,所述标识信息为唯一网元标识;
所述切换模块103具体用于:
向目标基站发送重路由命令,所述重路由命令中携带所述唯一网元标识与所述转发重分配请求消息,由所述目标基站将所述转发重分配请求消息发送给所述唯一网元标识对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
具体地,若应用于第四代移动通信系统,所述唯一网元标识为全局唯一移动管理实体标识;
若应用于第二代或第三移动通信系统,所述唯一网元标识为网络资源标识。
本发明第二实施例中,提供了另一种CN网元设备,用于实现目标CN网元的功能,如图2所示,该CN网元设备主要包括通过总线连接的处理器201、存储器202以及收发机203,其中,处理器201用于从存储器202中获取程序, 按照程序执行具体过程,收发机203用于在处理器201的控制下接收数据和发送数据,具体如下:
收发机203,用于接收第一专用CN网元发送的用户设备UE的CN类型信息;
处理器201,用于根据收发机203接收的所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,根据所述标识信息,将所述UE切换至所述标识信息对应的第二专用CN网元。
优选地,处理器201根据所述CN网元设备所支持的CN类型判断所述CN网元设备自身是否支持所述CN类型信息所指示的CN类型;
若支持,确定所述CN网元设备的标识信息为所述第二专用CN网元的标识信息;
若不支持,根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息。
优选地,处理器201从配置信息中获取所述CN类型信息对应的专用CN网元的标识信息,作为确定的支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述配置信息中包括能够为所述UE提供服务的至少一个专用CN网元的标识信息与所支持的CN类型信息的对应关系。
优选地,处理器从所述CN网元设备本地获取预设的所述配置信息;
或者,在确定所述CN网元设备不支持所述CN类型信息所指示的CN类型后,向域名服务器查询获得所述配置信息。
在一个具体实施中,若所述CN网元设备位于资源池中,所述配置信息具体包括:
所述CN网元设备所在资源池中包括的每个专用CN网元的标识信息与该每个专用CN网元所支持的CN类型信息的对应关系。
优选地,所述收发器203接收所述第一专用CN网元发送的转发重分配请求消息,所述转发重分配请求消息中携带有所述UE的CN类型信息。
在一个具体实施中,所述标识信息为地址信息;
处理器201根据所述地址信息,转发所述转发重分配请求消息至所述地址信息对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
在另一个具体实施中,所述标识信息为唯一网元标识;
处理器201向目标基站发送重路由命令,所述重路由命令中携带所述唯一网元标识与所述转发重分配请求消息,由所述目标基站将所述转发重分配请求消息发送给所述唯一网元标识对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
优选地,若应用于第四代移动通信系统,所述唯一网元标识为全局唯一移动管理实体标识;
若应用于第二代或第三移动通信系统,所述唯一网元标识为网络资源标识。
本发明第三实施例中,提供了一种专用CN网元设备,用于实现源专用CN网元的功能,如图3所示,该专用CN网元设备主要包括:
获取模块301,用于确定为用户设备UE在切换完成后所在的目标小区提供服务的目标CN网元,并获取所述UE的CN类型信息;
发送模块302,用于向所述目标CN网元发送转发重分配请求消息,所述转发重分配请求消息中携带有所述获取模块301获取的所述CN类型信息。
优选地,还包括接收模块303,用于:
在所述获取模块301确定为用户设备UE所在的目标小区提供服务的目标CN网元之前,接收源基站发送的将所述UE切换至目标小区的切换请求消息。
本发明第四实施例中,提供了另一种专用CN网元设备,用于实现源专用CN网元的功能,如图4所示,该专用CN网元设备主要包括通过总线连接的处理器401、存储器402以及收发机403,其中,处理器401用于从存储器402中获取程序,按照程序执行具体过程,收发机403用于在处理器401的控制 下接收数据和发送数据,具体如下:
处理器401,用于确定为用户设备UE在切换完成后所在的目标小区提供服务的目标CN网元,并获取所述UE的CN类型信息;
收发机403,用于向所述目标CN网元发送转发重分配请求消息,所述转发重分配请求消息中携带有所述处理器401获取的所述CN类型信息。
优选地,收发机403还用于在处理器401确定为用户设备UE所在的目标小区提供服务的目标CN网元之前,接收源基站发送的将所述UE切换至目标小区的切换请求消息。
本发明第五实施例,如图5所示,第一专用CN网元通知UE的专用网络类型的详细方法流程如下,包括:
步骤501:第一专用CN网元确定为UE在切换完成后所在的目标小区提供服务的目标CN网元,并获取该UE的CN类型信息。
其中,目标CN网元由第一专用CN网元按照现有切换流程中目标CN网元的选择方法选择,该目标CN网元不一定为与UE的CN类型一致的专用CN网元。
其中,第一专用CN网元确定为UE在切换完成后所在的目标小区提供服务的目标CN网元之前,第一专用CN网元接收源基站发送的将UE切换至目标小区的切换请求消息。
具体地,由于UE在该第一专用CN网元所在的网络注册,该第一专用CN网元上保存有该UE的CN类型信息。
步骤502:第一专用CN网元向目标CN网元发送转发重分配请求消息,所述转发重分配请求消息中携带有该UE的CN类型信息。
目标CN网元根据该UE的CN类型确定能够支持该CN类型的专用CN网元,以保持UE在对应的CN类型的专用CN网上的注册。
本发明第六实施例中,如图6所示,UE在专用网络之间切换的详细方法流程如下:
步骤601:目标CN网元接收第一专用CN网元发送的UE的CN类型信 息。
优选地,目标CN网元接收第一专用CN网元发送的转发重分配请求消息,该转发重分配请求消息中携带有UE的CN类型信息。
步骤602:目标CN网元根据该CN类型信息,确定支持该CN类型信息所指示的CN类型的第二专用CN网元的标识信息。
优选地,目标CN网元从配置信息中获取UE的CN类型信息对应的专用CN网元的标识信息,作为确定的支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,该配置信息中包括能够为该UE提供服务的至少一个专用CN网元的标识信息与其所支持的CN类型信息的对应关系。
具体地,配置信息中包括能够为UE当前所在的位置提供服务的至少一个专用CN网元的标识信息与其所支持的CN类型的对应关系,该UE当前所在的位置信息可以是从目标小区获得。
优选地,若目标CN网元位于一个资源池中,则配置信息中包括所述目标CN网元所在资源池中包括的每个专用CN网元的标识信息与该每个专用CN网元所支持的CN类型信息的对应关系。
优选地,目标CN网元根据自身所支持的CN类型判断自身是否支持CN类型信息所指示的CN类型;
若支持,目标CN网元确定自身的标识信息为第二专用CN网元的标识信息;
若不支持,目标CN网元根据UE的CN类型信息,确定支持该CN类型信息所指示的CN类型的第二专用CN网元的标识信息。具体地,在确定不支持时,目标CN网元根据UE的CN类型信息,从配置信息中获得与该UE的CN类型信息对应的专用CN网元的标识信息中的一个作为第二专用CN网元的标识信息。
优选地,配置信息的获取方式包括但不限于以下两种实现方式:
第一种实现方式,该配置信息预设在目标CN网元中,目标CN网元直接从本地获得;
第二种实现方式,该配置信息由目标CN网元在确定自身不支持CN类型信息所指示的CN类型后,在域名服务器中查询获得。
具体地,相应于该第二种实现方式,目标CN网元从域名服务器查询获得配置信息的具体过程为:
目标CN网元确定自身不支持UE的CN类型信息所指示的CN类型时,向域名服务器发起查询请求,该查询请求用于查询能够为UE所在位置区域提供服务的所有专用CN网元的配置信息;域名服务器根据该查询请求向目标CN网元返回配置信息,该配置信息中包括能够为UE所在位置区域提供服务的所有专用CN网元的标识信息与该专用CN网元支持的CN类型信息的对应关系。
步骤603:目标CN网元根据确定的该第二专用CN网元的标识信息,将该UE切换至该标识信息对应的第二专用CN网元。
具体实施中,确定的第二专用CN网元的标识信息可以是第二专用CN网元的地址信息,也可以是第二专用CN网元的唯一网元标识。
在一个具体实施中,若确定的第二专用CN网元的标识信息为该第二专用CN网元的地址信息,目标CN网元将UE切换至确定的该第二专用CN网元的标识信息对应的专用CN网元的具体过程如下:
目标CN网元根据确定的第二专用CN网元的地址信息,转发所述转发重分配请求消息至该地址信息对应的第二专用CN网元,在第二专用CN网元回复转发重分配应答消息给第一专用CN网元后,由第一专用CN网元将UE切换至该第二专用CN网元。
具体地,第二专用CN网元发送切换请求消息至目标基站,并接收该目标基站回复的切换请求确认消息,转发重分配应答消息给第一专用CN网元,由该第一专用CN网元将该UE切换至该第二专用CN网元。
在另一个具体实施中,若确定的第二专用CN网元的标识信息为该第二专用CN网元的唯一网元标识,目标CN网元将UE切换至确定的该第二专用CN网元的标识信息对应的第二专用CN网元的具体过程如下:
目标CN网元向目标基站发送重路由命令,该重路由命令中携带确定的该第二专用CN网元的唯一网元标识以及该转发重分配请求消息,由该目标基站将该转发重分配请求消息发送给该唯一网元标识对应的第二专用CN网元,在该第二专用CN网元回复转发重分配应答消息给第一专用CN网元后,由第一专用CN网元将该UE切换至该唯一网元标识对应的第二专用CN网元。
其中,若应用于第四代移动通信系统,确定的该第二专用CN网元的唯一网元标识为该第二专用CN网元的全局唯一移动管理实体标识;
若应用于第二代或第三移动通信系统,确定的该第二专用CN网元的唯一网元标识为该第二专用CN网元的网络资源标识。
以下通过三个具体实施例对本发明实施例中提供的专用CN网络切换的过程进行详细说明:
实际应用中,本发明实施例中的专用CN网元可以同时部署在第二代移动通信系统(2G)、第三代移动通信系统(3G)与4G网络,且可以同时覆盖电路交换(CS)域和分组交换(PS)域。为描述方便,该三个具体实施例中仅以第四代移动通信系统(4G)为例进行说明,例如长期演进(LTE)系统,且以CN网元为移动性管理实体(MME)为例进行说明。
第一具体实施例中,如图7所示,进行专用CN网络切换的具体过程如下:
步骤701:UE在源专用网络成功注册,当前UE处于连接态,因为UE的移动而移出了当前专用CN网元(专用MME)的服务区,故源基站(eNodeB)触发切换流程将UE切换到目标小区。源eNodeB发送切换请求(Handover Required)消息给源专用MME。
步骤702:源专用MME根据现有切换过程中目标MME的选择方法选择一个服务于目标小区的目标MME,并发送转发重分配请求(Forward Relocation Request)消息给该目标MME。在该转发重分配请求消息中携带该UE的CN类型信息。
由于UE已经在该专用网络注册,则源专用MME上保存有该UE的CN类型信息。
步骤703:目标MME首先检查自身是否能服务该CN类型信息指示的CN类型,即其自身支持的CN类型与该UE的CN类型是否一致,若一致,则按照正常的切换流程将UE切换至该目标MME;否则,根据UE的CN类型信息,确定能够为该UE提供服务且支持该UE的CN类型信息指示的CN类型的目标专用MME(Dedicated MME)的地址信息。
具体地,目标MME从配置信息中获取UE的CN类型信息对应的目标专用CN网元的地址信息,该配置信息中包括能够为该UE当前所在位置区域提供服务的一个以上专用MME的地址信息与其所支持的CN类型信息的对应关系。
若目标MME位于MME资源池(MME Pool)中,该配置信息需要配置该Pool中每个MME所支持的CN类型信息与该MME的地址信息的对应关系,从而通过CN类型信息,可以确定对应MME的地址信息。
步骤704:目标MME将转发重分配请求消息转发给选择的目标专用MME。
步骤705:对于选择的目标专用MME来说,相当于直接从源专用MME收到了转发重分配请求消息,故该选择的目标专用MME发送切换请求(Handover Request)消息给目标eNodeB请求为UE建立上下文与空口承载资源,目标eNodeB回复切换请求确认(Handover Request Acknowledge)消息给选择的该目标专用MME。
步骤706:选择的目标该专用MME将转发重分配应答(Forward Relocation Response)消息直接回复给源专用MME。
由源专用MME继续执行后续PS域切换流程,将UE切换到与其CN类型相同的目标专用MME上。
若目标小区处于一个MME资源池(MME Pool)中,则目标MME只在本Pool中选择专用MME,若该Pool中没有对应的专用MME,则目标MME按照正常的切换流程进行切换,将UE切换至该目标MME,表明UE进入了一个不能提供专网服务的小区。
第二具体实施例中,如图8所示,进行专用CN网络切换的具体过程如下:
步骤801-步骤802与上述第一具体实施例中的步骤701-步骤702完全相同,此处不再重复。
步骤803:目标MME首先检查自身是否能服务该CN类型信息指示的CN类型,即其自身支持的CN类型与该UE的CN类型是否一致,若一致,则按照正常的切换流程将UE切换至该目标MME;否则,根据UE的CN类型信息确定能够为该UE提供服务且支持该UE的CN类型的目标专用CN网元,并执行步骤804。
具体地,根据UE的CN类型信息从配置信息中获取该CN类型信息对应的目标专用MME的唯一网元标识,该预设的配置信息包括能够为该UE当前所在位置区域提供服务的一个以上专用MME的唯一网元标识与其所支持的CN类型信息的对应关系。
对于4G LTE网络,该唯一网元标识为全局唯一MME标识(Globally Unique MME Identifier,GUMMEI),对于2G/3G网络,该唯一网元标识为网络资源标识(Network Resource Identifier,NRI)。
需要说明的是,运营商需要在部署的专用网络中为每个专用CN网元配置唯一网元标识,用于选择对应的专用CN网元,比如:为一个专用MME预留一定数量的GUMMEI,为一个专用SGSN预留一定数量的NRI。
步骤804:目标MME向目标eNodeB发起重路由命令(Reroute Command),在该命令中携带分配的目标专用MME的GUMMEI与从源专用MME接收到的转发重分配请求消息。
步骤805-步骤806:目标eNodeB根据GUMMEI选择目标专用MME,并将转发重分配请求消息转发给选择的该目标专用MME。
步骤807:对于选择的该目标专用MME来说,相当于直接从源专用MME收到了转发重分配请求消息,故选择的该目标专用MME发送切换请求(Handover Request)消息给目标eNodeB请求为UE建立上下文与空口承载资源,目标eNodeB回复切换请求确认(Handover Request Acknowledge)消 息给选择的该目标专用MME。
步骤808:选择的该目标专用MME将转发重分配应答(Forward Relocation Response)消息直接回复给源专用MME。源专用MME继续执行后续PS域的切换流程,将UE切换到与该UE的CN类型相同的专用MME上。
若目标小区处于一个MME资源池中,则目标MME只在本资源池中选择专用MME,若该资源池中没有对应的专用MME,则目标eNodeB将转发重分配请求消息回送给目标MME,目标MME按照正常的切换流程将UE切换至自身,表明UE进入了一个不能提供专网服务的小区。
第三具体实施例中,如图9所示,进行专用CN网络切换的具体过程如下:
步骤901-步骤902与上述第一具体实施例中的步骤701-步骤702完全相同,此处不再重复。
步骤903:目标MME首先检查它是否能服务该CN类型信息指示的CN类型,即其自身支持的CN类型与UE的CN类型是否一致,若一致,则按照正常的切换流程将UE切换至该目标MME;否则,目标MME发起到域名服务器(Domain Name Server,DNS)正常的查询请求,旨在查找能够服务UE当前所在位置区域的所有MME的地址信息。
步骤904:DNS根据请求的位置区域信息,返回服务于该位置区域的一个MME列表信息,该列表信息中,除了包括每个MME的地址信息,还包括每个MME所支持的CN类型信息。
步骤905:目标MME根据UE的CN类型信息,与DNS返回的MME列表信息中的CN类型信息进行匹配,找到与该UE的CN类型信息相匹配的MME的地址信息并选择该MME为目标专用MME。
步骤906:目标MME将转发重分配请求消息转发给选择的目标专用MME。
步骤907:对于选择的该目标专用MME来说,相当于直接从源专用MME收到了转发重分配请求消息,故选择的该目标专用MME发送切换请求(Handover Request)消息给目标eNodeB请求为UE建立上下文与空口承载 资源,目标eNodeB回复切换请求确认(Handover Request Acknowledge)消息给选择的该目标专用MME。
步骤908:选择的该目标专用MME将转发重分配应答(Forward Relocation Response)消息直接回复给源专用MME。源专用MME继续执行后续的PS域切换流程,将UE切换到与该UE的CN类型相同的选择的该目标专用MME上。
若目标小区处于一个MME资源池中,则目标MME只在本资源池中选择专用MME,若该资源池中没有对应的专用MME,则目标MME按照正常的切换流程进行切换,将UE切换至该目标MME,表明UE进入了一个不能提供专网服务的小区。
基于上述技术方案,本发明实施例中,第一专用CN网元将UE的CN类型信息通知给目标CN网元,由目标CN网元根据UE的CN类型信息确定一个能够支持该UE的CN类型信息指示的CN类型的第二专用CN网元,并获得该第二专用CN网元的标识信息,根据该第二专用CN网元的标识信息将UE切换至对应的专用CN网元,从而保证了UE在切换过程中切换至支持该UE的CN类型的专用CN网元,能够保持UE在对应CN类型的专用CN网络中注册,以满足运营商专网专用的需求。
本领域内的技术人员应明白,本发明的实施例可提供为方法、系统、或计算机程序产品。因此,本发明可采用完全硬件实施例、完全软件实施例、或结合软件和硬件方面的实施例的形式。而且,本发明可采用在一个或多个其中包含有计算机可用程序代码的计算机可用存储介质(包括但不限于磁盘存储器和光学存储器等)上实施的计算机程序产品的形式。
本发明是参照根据本发明实施例的方法、设备(系统)、和计算机程序产品的流程图和/或方框图来描述的。应理解可由计算机程序指令实现流程图和/或方框图中的每一流程和/或方框、以及流程图和/或方框图中的流程和/或方框的结合。可提供这些计算机程序指令到通用计算机、专用计算机、嵌入式处理机或其他可编程数据处理设备的处理器以产生一个机器,使得通 过计算机或其他可编程数据处理设备的处理器执行的指令产生用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的装置。
这些计算机程序指令也可存储在能引导计算机或其他可编程数据处理设备以特定方式工作的计算机可读存储器中,使得存储在该计算机可读存储器中的指令产生包括指令装置的制造品,该指令装置实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能。
这些计算机程序指令也可装载到计算机或其他可编程数据处理设备上,使得在计算机或其他可编程设备上执行一系列操作步骤以产生计算机实现的处理,从而在计算机或其他可编程设备上执行的指令提供用于实现在流程图一个流程或多个流程和/或方框图一个方框或多个方框中指定的功能的步骤。
显然,本领域的技术人员可以对本发明进行各种改动和变型而不脱离本发明的精神和范围。这样,倘若本发明的这些修改和变型属于本发明权利要求及其等同技术的范围之内,则本发明也意图包含这些改动和变型在内。

Claims (22)

  1. 一种核心网CN网元设备,其特征在于,包括:
    接收模块,用于接收第一专用CN网元发送的用户设备UE的CN类型信息,所述第一专用CN网元指为所述UE在切换过程中所在的源小区提供服务的专用CN网元;
    确定模块,用于根据所述接收模块接收的所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述第二专用CN网元指为UE在切换完成后所在的目标小区提供服务的专用CN网元;
    切换模块,用于根据所述确定模块确定的所述标识信息,将所述UE切换至所述标识信息对应的所述第二专用CN网元。
  2. 如权利要求1所述的CN网元设备,其特征在于,所述确定模块具体用于:
    根据所述CN网元设备所支持的CN类型判断所述CN网元设备自身是否支持所述CN类型信息所指示的CN类型;
    若支持,确定所述CN网元设备的标识信息为所述第二专用CN网元的标识信息;
    若不支持,根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息。
  3. 如权利要求2所述的CN网元设备,其特征在于,所述确定模块具体用于:
    从配置信息中获取所述CN类型信息对应的专用CN网元的标识信息,作为确定的支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述配置信息中包括能够为所述UE提供服务的至少一个专用CN网元的标识信息与所支持的CN类型信息的对应关系。
  4. 如权利要求3所述的CN网元设备,其特征在于,所述确定模块还用于从所述CN网元网络设备本地获取预设的所述配置信息;
    或者,
    所述确定模块还用于:
    在确定所述CN网元设备不支持所述CN类型信息所指示的CN类型后,在域名服务器中查询获得所述配置信息。
  5. 如权利要求3所述的CN网元设备,其特征在于,所述配置信息具体包括:
    所述CN网元设备所在资源池中包括的每个专用CN网元的标识信息与每个专用CN网元所支持的CN类型信息的对应关系。
  6. 如权利要求1-5任一项所述的CN网元设备,其特征在于,所述接收模块具体用于:
    接收所述第一专用CN网元发送的转发重分配请求消息,所述转发重分配请求消息中携带有所述UE的CN类型信息。
  7. 如权利要求6所述的CN网元设备,其特征在于,所述标识信息为地址信息;
    所述切换模块具体用于:
    根据所述地址信息,转发所述转发重分配请求消息至所述地址信息对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
  8. 如权利要求6所述的CN网元设备,其特征在于,所述标识信息为唯一网元标识;
    所述切换模块具体用于:
    向目标基站发送重路由命令,所述重路由命令中携带所述唯一网元标识与所述转发重分配请求消息,由所述目标基站将所述转发重分配请求消息发送给所述唯一网元标识对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
  9. 如权利要求8所述的CN网元设备,其特征在于,所述唯一网元标识为全局唯一移动管理实体标识;或为网络资源标识。
  10. 一种专用CN网元设备,其特征在于,包括:
    获取模块,用于确定为用户设备UE在切换完成后所在的目标小区提供服务的目标CN网元,并获取所述UE的CN类型信息;
    发送模块,用于向所述目标CN网元发送转发重分配请求消息,所述转发重分配请求消息中携带有所述获取模块获取的所述CN类型信息。
  11. 如权利要求10所述的专用CN网元设备,其特征在于,还包括接收模块,用于:
    接收源基站发送的将所述UE切换至目标小区的切换请求消息,所述源基站指为所述UE在切换过程中所在的源小区提供服务的基站。
  12. 一种专用网络切换方法,其特征在于,包括:
    目标核心网CN网元接收第一专用CN网元发送的用户设备UE的CN类型信息,所述第一专用CN网元指为所述UE在切换过程中所在的源小区提供服务的专用CN网元;
    所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述第二专用CN网元指为UE在切换完成后所在的目标小区提供服务的专用CN网元;
    所述目标CN网元根据所述标识信息,将所述UE切换至所述标识信息对应的所述第二专用CN网元。
  13. 如权利要求12所述的方法,其特征在于,所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,包括:
    所述目标CN网元根据自身所支持的CN类型判断自身是否支持所述CN类型信息所指示的CN类型;
    若支持,所述目标CN网元确定自身的标识信息为所述第二专用CN网元的标识信息;
    若不支持,所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息。
  14. 如权利要求13所述的方法,其特征在于,所述目标CN网元根据所述CN类型信息,确定支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,包括:
    所述目标CN网元从配置信息中获取所述CN类型信息对应的专用CN网元的标识信息,作为确定的支持所述CN类型信息所指示的CN类型的第二专用CN网元的标识信息,所述配置信息中包括能够为所述UE提供服务的至少一个专用CN网元的标识信息与所支持的CN类型信息的对应关系。
  15. 如权利要求14所述的方法,其特征在于,所述配置信息预设在所述目标CN网元中;或者
    所述配置信息由所述目标CN网元在确定自身不支持所述CN类型信息所指示的CN类型后,在域名服务器中查询获得。
  16. 如权利要求14所述的方法,其特征在于,所述配置信息具体包括:
    所述目标CN网元所在资源池中包括的每个专用CN网元的标识信息与每个专用CN网元所支持的CN类型信息的对应关系。
  17. 如权利要求10-16任一项所述的方法,其特征在于,所述目标核心网CN网元接收第一专用CN网元发送的UE的CN类型信息,包括:
    所述目标CN网元接收所述第一专用CN网元发送的转发重分配请求消息,所述转发重分配请求消息中携带有所述UE的CN类型信息。
  18. 如权利要求17所述的方法,其特征在于,所述标识信息为地址信息;
    所述目标CN网元根据所述标识信息,将所述UE切换至所述标识信息对应的第二专用CN网元,包括:
    所述目标CN网元根据所述地址信息,转发所述转发重分配请求消息至所述地址信息对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
  19. 如权利要求17所述的方法,其特征在于,所述标识信息为唯一网元标识;
    所述目标CN网元根据所述标识信息,将所述UE切换至所述标识信息对应的第二专用CN网元,包括:
    所述目标CN网元向目标基站发送重路由命令,所述重路由命令中携带所述唯一网元标识与所述转发重分配请求消息,由所述目标基站将所述转发重分配请求消息发送给所述唯一网元标识对应的第二专用CN网元,在所述第二专用CN网元回复转发重分配应答消息给所述第一专用CN网元后,由所述第一专用CN网元将所述UE切换至所述第二专用CN网元。
  20. 如权利要求19所述的方法,其特征在于,所述唯一网元标识为全局唯一移动管理实体标识;或为网络资源标识。
  21. 一种专用网络类型通知方法,其特征在于,包括:
    第一专用核心网CN网元确定为用户设备UE在切换完成后所在的目标小区提供服务的目标CN网元,并获取所述UE的CN类型信息,所述第一专用CN网元指为所述UE在切换过程中所在的源小区提供服务的专用CN网元;
    所述第一专用CN网元向所述目标CN网元发送转发重分配请求消息,所述转发重分配请求消息中携带有所述CN类型信息。
  22. 如权利要求21所述的方法,其特征在于,第一核心网CN网元确定为用户设备UE所在的目标小区提供服务的目标CN网元之前,所述方法还包括:
    所述第一专用CN网元接收为所述源小区提供服务的源基站发送的将所述UE切换至目标小区的切换请求消息。
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