WO2017080267A1 - Procédé et dispositif d'acquisition d'identifiant d'entité de gestion de mobilité globalement unique - Google Patents

Procédé et dispositif d'acquisition d'identifiant d'entité de gestion de mobilité globalement unique Download PDF

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Publication number
WO2017080267A1
WO2017080267A1 PCT/CN2016/094230 CN2016094230W WO2017080267A1 WO 2017080267 A1 WO2017080267 A1 WO 2017080267A1 CN 2016094230 W CN2016094230 W CN 2016094230W WO 2017080267 A1 WO2017080267 A1 WO 2017080267A1
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Prior art keywords
mme
management entity
mobility management
sub
henb
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PCT/CN2016/094230
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English (en)
Chinese (zh)
Inventor
张燕
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中兴通讯股份有限公司
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Publication of WO2017080267A1 publication Critical patent/WO2017080267A1/fr

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    • 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
    • H04W36/0011—Control or signalling for completing the hand-off for data sessions of end-to-end connection
    • H04W36/0016—Hand-off preparation specially adapted for end-to-end data sessions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/12—Reselecting a serving backbone network switching or routing node
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/08—Reselecting an access point
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W76/00—Connection management
    • H04W76/10—Connection setup

Definitions

  • This application relates to, but is not limited to, the field of wireless communication technology.
  • HeNB Home evolved Node Base
  • the distributed network of HeNBs has gradually become an indispensable supplement in planning networking.
  • the HeNB distributed networking has the advantages of fast and convenient base station construction and increased user experience, but there are also some problems.
  • the home base station gateway may block some information of the Mobility Management Entity (MME), which is mainly a Globally Unique MME Identifier (referred to as: GUMMEI) information, which affects functions such as handover and access, wherein the GUMMEI includes a Public Land Mobile Network (PLMN) identification (ie, a PLMN ID) and a mobility management entity group identifier ( MME Group ID and MME Code, and the protocol defines that the first element in Served GUMMEIs is the GUMMEI information associated with Long Term Evolution (LTE); the definition of GUMMEI in other places.
  • PLMN Public Land Mobile Network
  • MME Group ID and MME Code mobility management entity group identifier
  • Both are included in the permutation combination of the three lists formed by the above PLMN ID, MME Group ID, and MME Code.
  • the GUMMEI information carried by the user equipment (User Equipment, UE) is matched, and the PLMN ID, the MME Group ID, and the MME Code are matched with an MME of the base station S1 interface link.
  • FIG. 3 it is a schematic diagram of a network architecture of a home base station gateway connecting multiple MMEs, and multiple MMEs in FIG. 3 (ie, MME A and MME) B)
  • the supported PLMN and the group identity (Group Identity, group: ID) are different.
  • the home base station gateway obtains the GUMMEI information of MME A and MME B when establishing the S1 interface connection between the home base station gateway and the MME A. Since all the S1 interfaces in the related art establish a connection process, the acquired GUMMEI information is obtained by arranging and combining the elements therein, of course, in the HeNB.
  • the acquired GUMMEI information is also obtained by arranging and combining.
  • the cell format of the Served GUMMEIs in the related art is shown in Table 1, where Served GUMMEIs is an array element, and the array element is One or more GUMMEI information may be combined.
  • the serving PLMNs may include a service PLMN ID of one or more MMEs.
  • the service Group IDs may also include one or more MME Group IDs, and the service MMECs may also include one. Or MME code of multiple MMEs.
  • the manner of obtaining the GUMMEI information and Table 1 can be seen that when the GUMMEI information of the MME A is the PLMN (46001), the Group Id (1), the MMEC (1), and the GUMMEI information of the MME B is the PLMN (46002), the Group Id ( 2)
  • the GUMMEI information of the MME A is the PLMN (46001)
  • the Group Id (1) is the GUMMEI information of the MME A
  • the GUMMEI information of the MME B is the PLMN (46002)
  • the Group Id 2
  • 2 GUMMEI information can be identified at the home base station gateway, ie (46001, 1, 1) and (46002, 2, 2); or 2 GU Group IDs can be identified, ie (46001, 1) and (46002, 2), but when the home base station gateway is transmitted to the HeNB, it can only be carried as: PLMN (46001, 46002) Group ID (1, 2) due to the limitation of the S1 interface setup response message
  • the GUMMEI information at the HeNB can be identified as (46001, 1, 1) (46001, 1, 2) (46001, 2, 1) (46001, 2, 2) (46002, 1, 1) ) (46002, 1, 2) (46002, 2, 1) (46002, 2, 2), thereby generating 6 GUMMEI information that does not actually exist.
  • the GU Group ID which can be identified as (46001, 1) (46001, 2) (46002, 1) (46002, 2), resulting in 2 GU Group IDs that do not actually exist.
  • the target base station may obtain the GUMMEI information carried by the source base station, and perform the S1 interface routing according to the GUMMEI information, but the source base station carries The GUMMEI information may be inaccurate, resulting in unsuccessful routing and failure of X2 interface switching.
  • the present invention provides a method and a device for obtaining a globally unique mobility management entity identifier, which is to solve the problem that the handover of the X2 interface between the base stations may fail in the scenario of the home base station gateway networking in the related art, so that the gateway at the home base station is implemented.
  • the Served GUMMEIs of different S1 interfaces are split, and the HeNB generates valid GUMMEI information according to multiple Served GUMMEIs elements, which improves the success rate of X2 interface switching between the HeNB and other base stations.
  • a method of obtaining a globally unique mobile management entity identity including:
  • the sent S1 interface setup response message includes one or more array elements, and each of the array elements uniquely corresponds to the GUMMEI information of one mobility management entity MME.
  • each of the array elements in the Served GUMMEIs includes: a public land mobile network identifier PLMN ID sub-element, a mobility management entity group identifier MME Group ID sub-element, a mobility management entity code MME Code sub-element, and a core network.
  • PLMN ID sub-element a public land mobile network identifier
  • MME Group ID sub-element a mobility management entity group identifier
  • MME Code sub-element a mobility management entity code sub-element
  • core network a core network.
  • the PLMN ID sub-element includes the PLMN ID of the GUMMEI information corresponding to the current array element;
  • the MME Group ID sub-element includes the MME Group ID of the GUMMEI information corresponding to the array element;
  • the MME Code sub-element includes the array of the group The MME Code of the GUMMEI information corresponding to the element;
  • the CN Type sub-element includes the CN Type of the GUMMEI information corresponding to the array element of the group.
  • the method before the receiving the S1 interface setup request message sent by the home eNodeB HeNB, the method further includes:
  • the S1 interface setup response message sent by the multiple MMEs is received, and the GUMMEI information of the corresponding MME is obtained from each of the S1 interface setup response messages.
  • An apparatus for obtaining a globally unique mobility management entity identifier is applied to a home base station gateway, and the apparatus includes:
  • the receiving module is configured to: receive an S1 interface setup request message sent by the home evolved base station HeNB;
  • the modification module is configured to: modify the service group globally unique mobility management entity identifier Served GUMMEIs in the S1 interface setup response message to be sent;
  • the response module is configured to: send an S1 interface setup response message carrying the modified Served GUMMEIs of the modification module to the HeNB, to establish an S1 interface with the HeNB;
  • the sent S1 interface setup response message includes one or more array elements, and each of the array elements uniquely corresponds to the GUMMEI information of one mobility management entity MME.
  • each of the array elements in the Served GUMMEIs includes: a public land mobile network identifier PLMN ID sub-element, a mobility management entity group identifier MME Group ID sub-element, a mobility management entity code MME Code sub-element, and a core network.
  • PLMN ID sub-element a public land mobile network identifier
  • MME Group ID sub-element a mobility management entity group identifier
  • MME Code sub-element a mobility management entity code sub-element
  • core network a core network.
  • the PLMN ID sub-element includes the PLMN ID of the GUMMEI information corresponding to the current array element;
  • the MME Group ID sub-element includes the MME Group ID of the GUMMEI information corresponding to the array element;
  • the MME Code sub-element includes the array of the group Element corresponding to GUMMEI The MME Code of the information;
  • the CN Type sub-element includes the CN Type of the GUMMEI information corresponding to the array element of the group.
  • the device further includes:
  • an acquiring module configured to: before the receiving module receives the S1 interface setup request message sent by the HeNB, receive an S1 interface setup response message sent by multiple MMEs, respectively, from each of the S1 interface setup response messages Obtaining the GUMMEI information of the corresponding MME.
  • the method and device for obtaining the global unique mobility management entity identifier provided by the embodiment of the present invention, by modifying the Served GUMMEIs cell carried in the message, so that each array element in the S1 interface setup response message uniquely corresponds to one GUMMEI information,
  • the Served GUMMEIs of different S1 interfaces are split under the home base station gateway, so that the HeNB generates valid GUMMEI information according to multiple Served GUMMEIs elements, thereby improving the success rate of X2 interface switching between the HeNB and other base stations.
  • FIG. 1 is a flowchart of a method for obtaining a global unique mobility management entity identifier according to an embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of an apparatus for acquiring a globally unique mobility management entity identifier according to an embodiment of the present invention
  • FIG. 3 is a schematic diagram of a network architecture of a home base station gateway connecting multiple MMEs
  • FIG. 4 is a flowchart of another method for obtaining a globally unique mobility management entity identifier according to an embodiment of the present invention
  • FIG. 5 is a schematic structural diagram of another apparatus for acquiring a globally unique mobility management entity identifier according to an embodiment of the present invention.
  • FIG. 6 is a flowchart of establishing an S1 interface between a home base station gateway and a HeNB in a method for acquiring a globally unique mobility management entity identifier according to an embodiment of the present invention.
  • the present invention is directed to the problem that the handover of the X2 interface between the base stations fails in the scenario of the home base station gateway networking in the related art, and provides a method for obtaining the global unique mobility management entity identifier by using the Served GUMMEIs cell carried in the message.
  • the modification implements splitting of the Served GUMMEIs of different S1 interfaces under the home base station gateway, and the HeNB generates valid GUMMEI information according to the plurality of Served GUMMEIs elements, thereby improving the success rate of X2 interface switching between the HeNB and other base stations.
  • FIG. 1 is a flowchart of a method for obtaining a globally unique mobility management entity identifier according to an embodiment of the present invention.
  • the method provided in this embodiment may include the following steps, that is, steps 11 to 13:
  • Step 11 Receive an S1 interface setup request message sent by the HeNB.
  • Step 12 modify the service group global unique mobility management entity identifier (Served GUMMEIs) in the S1 interface setup response message to be sent;
  • Step 13 Send an S1 interface setup response message carrying the modified Served GUMMEIs to the HeNB to establish an S1 interface with the HeNB.
  • the S1 interface setup response message sent in the embodiment of the present invention includes one or more array elements, and each array element uniquely corresponds to the GUMMEI information of one MME.
  • the method for obtaining the global unique mobility management entity identifier provided by the embodiment of the present invention, by modifying the Served GUMMEIs cell carried in the response message of the S1 interface, so that each array element included in the S1 interface establishment response message uniquely corresponds to one GUMMEI.
  • the information is implemented to split the Served GUMMEIs of the different S1 interfaces under the home base station gateway, so that the HeNB generates valid GUMMEI information according to the multiple Served GUMMEIs elements, thereby improving the success rate of the X2 interface switching between the HeNB and other base stations.
  • each array element in the foregoing Served GUMMEIs includes: a Public Land Mobile Network Identity (PLMN ID) sub-element, a Mobile Management Entity Group Identity (MME Group ID) sub-element, and a mobility management entity.
  • PLMN ID Public Land Mobile Network Identity
  • MME Group ID Mobile Management Entity Group Identity
  • MME Code Encoding
  • CN core network
  • CN Type CN Type
  • the PLMN ID sub-element includes the PLMN ID of the GUMMEI information corresponding to the current array element; the MME Group ID sub-element includes the MME Group ID of the GUMMEI information corresponding to the array element; and the MME code sub-element includes the GUMMEI information corresponding to the array element of the group.
  • the MME Code; CN Type sub-element includes the CN Type of the GUMMEI information corresponding to the array element of the group.
  • composition content of the GUMMEI information may be as shown in Table 2:
  • composition content of the GU Group ID can be as shown in Table 3:
  • the cell format of Served GUMMEIs can be as shown in Table 4:
  • FIG. 4 is a flowchart of another method for obtaining a globally unique mobility management entity identifier according to an embodiment of the present invention.
  • the method may further include:
  • Step 10 Receive an S1 interface setup response message sent by multiple MMEs, and obtain the GUMMEI information of the corresponding MME from each S1 interface setup response message.
  • the method before performing step 10, that is, before receiving the S1 interface setup response message sent by multiple MMEs, the method further includes: sending an S1 interface setup request message to multiple MMEs, and each MME is configured according to The received S1 interface setup request message is sent to the home base station gateway with the GUMMEI information corresponding to the MME.
  • the method for obtaining the global unique mobility management entity identifier provided by the embodiment of the present invention may complete the handover of the X2 interface between the HeNBs according to the Served GUMMEIs carried in the response message of the S1 interface.
  • each array element in the S1 interface setup response message uniquely corresponds to one GUMMEI information, which can improve the success rate of X2 interface switching between the source HeNB and the target HeNB.
  • the following describes the processing procedure of the X2 interface switching between the source HeNB and the target HeNB for the modification of the Served GUMMEIs cell.
  • the implementation method includes the following steps, namely, S01 to S04:
  • the source HeNB sends a handover request message carrying the GUMMEI information to the target HeNB.
  • the handover request message carries the GUMMEI information of the MME to which the active HeNB belongs, and the GUMMEI information is obtained from the S1 interface response message returned by the home base station gateway when the S1 interface is established with the home base station gateway; the GUMMEI information is valid.
  • the absence of GUMMEI information no longer occurs due to the modification of the Served GUMMEIs cell format.
  • the target HeNB performs S1 interface routing according to the GUMMEI information, and sends the path to the source HeNB. Switching request confirmation message;
  • the target HeNB selects the route to the serving MME to which the source HeNB is connected according to the GUMMEI information provided by the source HeNB, because the modification of the Served GUMMEIs cell makes each array element uniquely corresponding.
  • a GUMMEI information so the established S1 interface routing path is real, thereby improving the success rate of X2 interface switching between the source HeNB and the target HeNB.
  • the target HeNB sends a path switch request message to the MME connected to the target HeNB by using the home base station gateway.
  • the sent path switch request message is used to request the MME to update the node address of the service data channel, and notify the MME to switch the connection path of the service data.
  • the serving MME of the target HeNB sends a path switch request acknowledgement message to the target HeNB.
  • the method for obtaining the global unique mobility management entity identifier in the embodiment of the present invention by modifying the Served GUMMEIs cell carried in the response message of the S1 interface, so that each array element uniquely corresponds to one GUMMEI, and the home base station gateway is different to different S1.
  • the Served GUMMEIs of the interface is split.
  • the HeNB generates valid GUMMEI information according to multiple Served GUMMEIs elements, which improves the success rate of X2 interface switching between the HeNB and other base stations.
  • FIG. 2 is a schematic structural diagram of an apparatus for acquiring a globally unique mobility management entity identifier according to an embodiment of the present invention.
  • the apparatus provided in this embodiment may include:
  • the receiving module 21 is configured to: receive an S1 interface setup request message sent by the HeNB;
  • the modifying module 22 is configured to: modify the Served GUMMEIs in the S1 interface setup response message to be sent;
  • the response module 23 is configured to: send an S1 interface setup response message carrying the modified Served GUMMEIs of the modification module 22 to the HeNB, to establish an S1 interface with the HeNB;
  • the S1 interface setup response message sent in the embodiment of the present invention includes one or more array elements, and each array element uniquely corresponds to the GUMMEI information of one MME.
  • each array element in the foregoing Served GUMMEIs includes: a Public Land Mobile Network Identity (PLMN ID) sub-element, and a mobility management entity group identifier (MME). Group ID) Sub-element, Mobile Management Entity Encoding (MME Code) sub-element and Core Type (CN Type) sub-element.
  • PLMN ID Public Land Mobile Network Identity
  • MME mobility management entity group identifier
  • Group ID Sub-element
  • MME Code Mobile Management Entity Encoding
  • CN Type Core Type
  • the PLMN ID sub-element includes the PLMN ID of the GUMMEI information corresponding to the current array element; the MME Group ID sub-element includes the MME Group ID of the GUMMEI information corresponding to the array element; and the MME code sub-element includes the GUMMEI information corresponding to the array element of the group.
  • the MME Code; CN Type sub-element includes the CN Type of the GUMMEI information corresponding to the array element of the group.
  • the composition content of the GUMMEI information may be as shown in Table 2.
  • the composition content of the GU Group ID may be as shown in Table 3.
  • the cell format of the Served GUMMEIs may be as shown in Table 4.
  • FIG. 5 is a schematic structural diagram of another apparatus for acquiring a globally unique mobility management entity identifier according to an embodiment of the present invention. Based on the structure of the device shown in FIG. 2, the device provided in this embodiment may further include:
  • the obtaining module 24 is configured to: before receiving the S1 interface setup request message sent by the HeNB, the receiving module 21 receives the S1 interface setup response message sent by the multiple MMEs, and obtains the GUMMEI information of the corresponding MME from each S1 interface setup response message. .
  • the acquiring module 23 before receiving the S1 interface setup response message sent by the multiple MMEs, is further configured to: send an S1 interface setup request message to multiple MMEs, and each MME according to the MME The received S1 interface setup request message is sent to the home base station gateway with the GUMMEI information corresponding to the MME.
  • the apparatus for obtaining the global unique mobility management entity identifier provided by the embodiment of the present invention, by modifying the Served GUMMEIs cell carried in the response message of the S1 interface, so that each array element in the S1 interface establishment response message uniquely corresponds to one GUMMEI information.
  • the Served GUMMEIs of the different S1 interfaces are split under the home base station gateway, and the HeNB generates valid GUMMEI information according to the multiple Served GUMMEIs elements, thereby improving the success rate of the X2 interface switching between the HeNB and other base stations.
  • FIG. 6 the method for obtaining the global unique mobility management entity identifier provided by the embodiment of the present invention is shown.
  • the workflow of the S1 interface establishment is described in detail below in conjunction with the schematic diagram.
  • the implementation manner may include the following steps, that is, steps 21 to 22:
  • Step 21 The HeNB sends an S1 interface setup request message to the home base station gateway.
  • the S1 interface setup request message carries information such as a HeNB identifier, a HeNB name, and a supported PLMN and a Tracking Area Code (TAC).
  • the PLMN is combined with the TAC.
  • the Tracking Area Identity (TAI) is used to learn the tracking area where the user equipment (UE) is located in the core network.
  • Step 22 The Served GUMMEIs in the S1 interface setup response message to be sent by the home base station gateway is modified.
  • Step 23 The home base station gateway sends an S1 interface setup response message to the HeNB.
  • the home base station gateway accepts the S1 interface link according to the information carried in the received S1 interface setup request message, and the S1 interface setup response message carries the MME corresponding to the S1 interface connected to the home base station gateway.
  • the GUMMEI information is used by the HeNB to perform an S1 interface routing operation.
  • the GUMMEI information saved in the HeNB is derived from the Served GUMMEIs in the S1 interface response message, and the Served GUMMEIs cell is modified so that each array element in the S1 interface response message uniquely corresponds to one GUMMEI information, thereby making the HeNB
  • the obtained GUMMEI information is valid.
  • the Served GUMMEIs cell carried in the response message of the S1 interface is modified, so that each array element uniquely corresponds to one GUMMEI, and the Served GUMMEIs of different S1 interfaces are split under the home base station gateway, and the HeNB is based on multiple The Served GUMMEIs element generates valid GUMMEI information.
  • the GUMMEI information that is optionally carried when the UE accesses, the GU Group ID List that the current HeNB belongs to when the X2 interface is established, and
  • the S1 interface can optionally carry the GUMMEI information.
  • the signaling flow is of course not limited to the above-mentioned example.
  • the GUMMEI information obtained in the modified Served GUMMEIs or the GU Group ID format can be used. All It is effective to reduce the invalid GUMMEI information during the signaling interaction process, thereby reducing the failure rate of the processing flow.
  • all or part of the steps of the above embodiments may also be implemented by using an integrated circuit. These steps may be separately fabricated into individual integrated circuit modules, or multiple modules or steps may be fabricated into a single integrated circuit module. achieve.
  • the devices/function modules/functional units in the above embodiments may be implemented by a general-purpose computing device, which may be centralized on a single computing device or distributed over a network of multiple computing devices.
  • the device/function module/functional unit in the above embodiment When the device/function module/functional unit in the above embodiment is implemented in the form of a software function module and sold or used as a stand-alone product, it can be stored in a computer readable storage medium.
  • the above mentioned computer readable storage medium may be a read only memory, a magnetic disk or an optical disk or the like.
  • each array element in the S1 interface setup response message uniquely corresponds to one GUMMEI information, and the Served GUMMEIs split of different S1 interfaces under the home base station gateway is implemented. Therefore, the HeNB generates valid GUMMEI information according to the plurality of Served GUMMEIs elements, and improves the success rate of X2 interface switching between the HeNB and other base stations.

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  • Computer Networks & Wireless Communication (AREA)
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Abstract

L'invention concerne un procédé et un dispositif d'acquisition d'un identifiant d'entité de gestion de mobilité globalement unique. Le procédé consiste à : recevoir un message de demande d'établissement d'interface S1 transmis par un Nœud B évolué domestique (HeNB); modifier des identifiants d'entité de gestion de mobilité globalement unique desservis (GUMMEI desservis) dans un message de réponse d'établissement d'interface S1 à envoyer; et envoyer le message de réponse d'établissement d'interface S1 contenant les GUMMEI desservis modifiés au HeNB pour établir une interface S1 avec le HeNB, le message de réponse d'établissement d'interface S1 transmis contenant un ou plusieurs éléments de réseau, et chaque élément de réseau correspondant de façon unique aux informations GUMMEI d'un MME.
PCT/CN2016/094230 2015-11-10 2016-08-09 Procédé et dispositif d'acquisition d'identifiant d'entité de gestion de mobilité globalement unique WO2017080267A1 (fr)

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