WO2014206251A1 - Procédé, appareil et système de réseau de transfert intercellulaire entre systèmes - Google Patents

Procédé, appareil et système de réseau de transfert intercellulaire entre systèmes Download PDF

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Publication number
WO2014206251A1
WO2014206251A1 PCT/CN2014/080474 CN2014080474W WO2014206251A1 WO 2014206251 A1 WO2014206251 A1 WO 2014206251A1 CN 2014080474 W CN2014080474 W CN 2014080474W WO 2014206251 A1 WO2014206251 A1 WO 2014206251A1
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WIPO (PCT)
Prior art keywords
network element
core network
subscription information
subscription
context identifier
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PCT/CN2014/080474
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English (en)
Chinese (zh)
Inventor
武绍芸
任厚平
姜志健
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W36/00—Hand-off or reselection arrangements
    • H04W36/14—Reselecting a network or an air interface
    • H04W36/144—Reselecting a network or an air interface over a different radio air interface technology
    • H04W36/1443—Reselecting a network or an air interface over a different radio air interface technology between licensed networks

Definitions

  • Embodiments of the present invention relate to communication technologies, and in particular, to an inter-system handover method, apparatus, and network system. Background technique
  • GSM Global System of Mobile Communication
  • UTRAN Universal Terrestrial Radio Access Network
  • UMTS Universal Mobile Telecommunications System
  • LTE-EPS network The introduction of the LTE-EPS network is a gradual process, including the evolved UMTS terrestrial radio access network (Evolved Universal Terrestrial Radio Access Network) wireless network (using LTE access technology, ie 4G) ) and the Evolved Packet System (EPS) core network.
  • Evolved Universal Terrestrial Radio Access Network Evolved Universal Terrestrial Radio Access Network
  • EPS Evolved Packet System
  • the UE performs services on the LTE network, when the coverage (signal) of the UMTS network is superior to the LTE network, or the eNodeB (eNodeB) is heavily loaded. If the UE moves from the LTE coverage area to the UMTS coverage area, the eNodeB triggers the UE to switch to the UMTS network.
  • Embodiments of the present invention provide an inter-system handover method, apparatus, and network system, which are used to implement accurate acquisition of a core network element of a second system by a UE when the UE switches between the first system and the second system.
  • the subscription information of the APN in the second system thereby improving the success rate of the UE switching between the first system and the second system.
  • a first aspect of the present invention provides an inter-system handover method, including:
  • the first core network element in the first system acquires the subscription information of the user equipment UE in the second system
  • the first core network element sends a forward relocation request message to the second core network element in the second system, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, so that the second core network element determines the subscription information corresponding to the context identifier according to the context identifier.
  • the first core network element in the first system obtains the subscription information of the user equipment UE in the second system, including:
  • the first core network element sends a location update request message to the second subscription information storage network element, where the second subscription information storage network element is a network element that stores the UE subscription information in the second system;
  • the first core network element Receiving, by the first core network element, the first insertion subscription data message sent by the second subscription information storage network element, where the first insertion subscription data message includes the subscription information of the UE in the second system .
  • the method further includes:
  • the first core network element receives the location update response message sent by the second subscription information storage network element.
  • the first core network element receives the second subscription information After the first insertion subscription data message sent by the storage network element, the method further includes:
  • the first core network element sends a second insertion subscription data response message to the second subscription information storage network element.
  • the first system is a 2G system or a 3G system, where the The second system is a 4G system; or the first system is a 4G system, and the second system is a 2G system or a 3G system.
  • a second aspect of the present invention provides an inter-system handover method, including:
  • the second subscription information storage network element receives the location update request message sent by the first core network element in the first system, where the second subscription information storage network element is a network element that stores the user equipment UE subscription information in the second system;
  • the second subscription information storage network element sends a first insertion subscription data message to the first core network element, where the first insertion subscription data message includes the subscription information of the UE in the second system, so that The first core network element sends a forward relocation request message to the second core network element in the second system, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of a context identifier in the subscription information of the UE in the second system.
  • the method further includes:
  • the second subscription information storage network element sends a location update response message to the first core network element.
  • the second subscription information storage network element is to the first core After the network element sends the first insertion subscription data message, the network element further includes: The second subscription information storage network element sends a second insertion subscription data message to the first core network element, so that the first core network element is configured according to the second insertion subscription data message.
  • the subscription information of the UE in the second system is updated, and the subscription information of the UE in the second system stored in the first core network element is updated;
  • the second subscription information storage network element receives the second insertion subscription data response message sent by the first core network element.
  • the second subscription information storage network element receives the first After the location update request message sent by a core network element, the method further includes:
  • the second subscription information storage network element sends a cancel location registration message to the third core network network element, where the third core network element is attached to the UE in the second system, except the second core. a core network element other than the network element, so that the third core network element deletes the locally stored context information of the UE;
  • the second subscription information storage network element receives the cancel location registration response message sent by the third core network element.
  • the first system is a 2G system or a 3G system
  • the second system is a 4G system; or the first system is a 4G system, and the second system is a 2G system or a 3G system.
  • a third aspect of the present invention provides an inter-system handover method, including:
  • the second core network element in the second system receives the forward relocation request message sent by the first core network element in the first system, where the forward relocation request message includes a context identifier, where the context identifier is a value of a value of a context identifier in the subscription information of the user equipment UE in the second system;
  • the second core network element determines the subscription information corresponding to the context identifier according to the context identifier.
  • a fourth aspect of the present invention provides an inter-system switching apparatus, including:
  • An obtaining module configured to acquire subscription information of the user equipment UE in the second system
  • a sending module configured to send a forward relocation request message to the second core network element in the second system, where the forward relocation request message includes a context identifier, and the value of the context identifier And a value of the context identifier in the subscription information of the UE in the second system, where the second core network element determines the subscription information corresponding to the context identifier according to the context identifier.
  • the acquiring module is specifically configured to: send a location update request message to the second subscription information storage network element, where the second subscription information storage network element is a second system a network element that stores UE subscription information;
  • the acquiring module is further configured to receive an insertion subscription sent by the second subscription information storage network element After the data message, sending a first insertion subscription data response message to the second subscription information storage network element;
  • the acquiring module is further configured to receive the second subscription After receiving the first insertion subscription data message sent by the information storage network element, receiving the second insertion subscription data message sent by the second subscription information storage network element;
  • the first system is a 2G system or a 3G system, where the The second system is a 4G system; or the first system is a 4G system, and the second system is a 2G system or a 3G system.
  • a fifth aspect of the present invention provides an inter-system switching apparatus, including:
  • a receiving module configured to receive a location update request message sent by the first core network element in the first system, where the second subscription information storage network element is a network element that stores user equipment UE subscription information in the second system;
  • a sending module configured to send a first insertion subscription data message to the first core network element, where the first insertion subscription data message includes the subscription information of the UE in the second system, so that The first core network element sends a forward relocation request message to the second core network element in the second system, where the forward relocation request message includes a context identifier, where the value of the context identifier is The value of the context identifier in the subscription information of the UE in the second system.
  • the receiving module is further configured to: after sending the first insertion subscription data message to the first core network element, receive the first core network element The first inserted subscription data response message sent;
  • the sending module is further configured to send a location update response message to the first core network element.
  • the sending module is further used in the second subscription information storage network. After the first insertion subscription data message is sent to the first core network element, the second insertion subscription data message is sent to the first core network element, so that the first core network element is according to the And signing the subscription information of the UE in the second system in the second subscription network data message, and updating the subscription information of the UE in the second system stored in the first core network element;
  • the receiving module is further configured to receive a second insertion subscription data response message sent by the first core network element.
  • the sending module is further configured to receive After the location update request message sent by the core network element, the canceled location registration message is sent to the third core network element, where the third core network element is the attached to the UE in the second system. a core network element other than the second core network element, so that the third core network element deletes the locally stored context information of the UE;
  • the receiving module is further configured to receive a cancel location registration response message sent by the third core network element.
  • the first system is a 2G system or a 3G system
  • the second system is a 4G system; or the first system is a 4G system, and the second system is a 2G system or a 3G system.
  • an inter-system switching apparatus including:
  • a receiving module configured to receive a forward relocation request message sent by the first core network element in the first system, where the forward relocation request message includes a context identifier, and the value of the context identifier a value of a context identifier in the subscription information of the user equipment UE in the second system; a processing module, configured to determine, according to the context identifier, a subscription corresponding to the context identifier? from
  • a seventh aspect of the present invention provides a network system, comprising: the inter-system switching device according to any one of the possible implementations of the fourth aspect or the fourth aspect, the fifth aspect or the fifth aspect An intersystem switching device as described in a possible implementation and an intersystem switching device as described in the sixth aspect.
  • the inter-system switching method, device, and network system provided by the embodiment of the present invention first obtain the subscription information of the UE in the second system by using the first core network element in the first system, and the first core network element is further forwarded to the second
  • the second core network element in the system sends a forward relocation request message, where the forward relocation request message includes a context identifier, where the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system
  • the second core network element determines the subscription information corresponding to the context identifier according to the context identifier, so that when the UE switches between the first system and the second system, the core network element of the second system accurately obtains the APN used by the UE.
  • the subscription information in the second system further improves the success rate of the UE switching between the first system and the second system.
  • BRIEF DESCRIPTION OF THE DRAWINGS In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, a brief description of the drawings used in the embodiments or the prior art description will be briefly described below. The drawings are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any inventive labor.
  • Embodiment 1 is a flowchart of Embodiment 1 of an inter-system handover method according to the present invention
  • FIG. 2 is a schematic diagram of a SGSN searching for APN subscription information from an HLR according to a context identifier in the prior art
  • Embodiment 2 is a flowchart of Embodiment 2 of an inter-system handover method provided by the present invention
  • FIG. 5 is a flowchart of Embodiment 4 of an inter-system handover method according to the present invention.
  • Embodiment 5 is a flowchart of Embodiment 5 of an inter-system handover method according to the present invention.
  • FIG. 8 is a flowchart of Embodiment 7 of an inter-system handover method according to the present invention
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of an inter-system switching device according to the present invention
  • FIG. 10 is a schematic structural diagram of Embodiment 2 of an inter-system switching device according to the present invention
  • Embodiment 3 is a schematic structural diagram of Embodiment 3 of an inter-system switching device according to the present invention.
  • FIG. 12 is a schematic structural diagram of Embodiment 4 of an inter-system switching apparatus according to the present invention.
  • Embodiment 13 is a schematic structural diagram of Embodiment 5 of an inter-system switching device according to the present invention.
  • Embodiment 6 is a schematic structural diagram of Embodiment 6 of an inter-system switching device according to the present invention.
  • FIG. 15 is a schematic structural diagram of Embodiment 1 of a network system according to the present invention.
  • the technical solutions in the embodiments of the present invention are clearly and completely described in the following with reference to the accompanying drawings in the embodiments of the present invention.
  • the embodiments are a part of the embodiments of the invention, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative efforts are within the scope of the present invention.
  • FIG. 1 is a flowchart of Embodiment 1 of an inter-system handover method according to the present invention.
  • the inter-system handover method in this embodiment includes:
  • the first core network element in the first system acquires subscription information of the UE in the second system.
  • the first core network element sends a forward relocation request message to the second core network element in the second system, where the forward relocation request message includes a context identifier, and the value of the context identifier is the UE in the second system.
  • the value of the context identifier in the subscription information so that the second core network element determines the subscription information corresponding to the context identifier according to the context identifier.
  • the first system is a 2G system or a 3G system
  • the second system is a 4G system
  • the first system is a 4G system
  • the second system is a 2G system or a 3G system.
  • the GPRS Service Support Node (SGSN) and the Mobility Management Entity (MME) are the Packet Switch (PS) signaling messages in the GPRS and EPS networks, respectively.
  • the core network element it should be noted that the SGSN in this embodiment refers to the GnGp-SGSN (that is, the SGSN in the 2/3G system).
  • the Home Location Register (HLR) is a network element that stores user subscription information on a 2/3G network.
  • the Home Subscriber Server (HSS) is a network element that stores user subscription information on a 4G network.
  • the first core network element is the SGSN
  • the second core network element is the ⁇
  • the second subscription information storage network element is the HSS.
  • the first core network element is ⁇
  • the second core network element is SGSN
  • the second subscription information storage network element is HLR.
  • the handover process of the UE from 4G to 3G may include: the eNodeB initiates a handover request to the MME,
  • the MME notifies the SGSN to perform a Forward Relocation Request; the SGSN notifies the target Radio Network Controller (RNC) to establish a radio resource, and sends a relocation response to the MME; if there is no straight between the eNodeB and the target RNC
  • the MME needs to notify the Serving Gateway (S-GW) to establish a non-direct transmission link; the MME sends a handover command to the UE through the eNodeB; the eNodeB performs data forwarding: if there is a direct transmission link, the eNodeB directly directly transmits the data.
  • S-GW Serving Gateway
  • the eNodeB forwards the data to the S-GW, and then the S-GW forwards the data to the target RNC; the UE completes the handover and sends the radio resource control to the target RNC (Radio Resource Control, Referred to as RRC) Reconfiguration Complete message.
  • RRC Radio Resource Control
  • RAU routing area update
  • the SGSN notifies the MME that the target side has completed the relocation.
  • the MME responds to the relocation completion; the SGSN notifies the GGSN to update the context information; the MME notifies the S-GW to delete the session, and notifies the eNodeB to release the resource.
  • the SGSN as the target side acquires the mobility management context and Packet Data Protocol (PDP) context information of the UE from the source MME.
  • PDP context information includes other information such as an Access Point Name (APN) that the UE is using, and an APN Context-Identifier.
  • APN Access Point Name
  • APN Context-Identifier an Access Point Name
  • the SGSN can obtain the 2/3G service subscription information of the APN from the HLR.
  • the process of the UE switching from LTE to GREAN/UTRAN is clearly defined in 3GPP 23401.
  • the MME on the source side sends a PDP Context (PDP Context) and other information to the target side SGSN through a "Forward Relocation Request" message. .
  • the "Forward Relocation Request" message between the MME and the SGSN is defined in 3GPP 29060.
  • the message carries the PDP Context cell, and the source MME fills the APN used by the 4G service and the PDP Context Identifier in the PDP Context cell to the target side.
  • SGSN After obtaining the APN information, the target SGSN obtains 2/3G subscription data from the HLR through the Update Location Request message in the subsequent RAU process.
  • the prior art does not explicitly require the SGSN to query the HLR from the HLR whether the APN is used as an index or the Context Identifier as an index, which causes different vendors to implement differently.
  • the SGSN queries the APN subscription information from the HLR with the Context Identifier as an index
  • the Context Identifier is obtained from the MME
  • the MME is obtained from the HSS query when the user 4G accesses
  • the scenario implemented by the HLR and the HSS is separated.
  • the 2/3G subscription data and the 4G subscription data are separately managed. That is, for the same APN, the Context Identifier assigned to the HLR and the HSS cannot be guaranteed to be the same.
  • FIG. 2 is a schematic diagram of the SGSN searching for APN subscription information from the HLR according to the context identifier in the prior art.
  • the SGSN obtains an APN value of a from the MME, and the context identifier C1 is 1.
  • the subscription information of APN a actually obtains the subscription information of APN b, which causes the subscription information obtained by the SGSN from the HLR to be inaccurate.
  • the MME will initiate an update to the HSS after the 4G user accesses the MME through the Attachment or Tracking Area Update (TAU), as in the example of the 4G to 2/3G handover process.
  • TAU Tracking Area Update
  • the process obtains the subscription information of the user and notifies the HSS of the dynamic information of the user.
  • an MME needs to go to the HLR's Update Location process to obtain the 2/3G subscription information of the user, including the APN Context Identifier.
  • the MME fills the PDP Context ldentifier with the value in the 2/3G subscription information in the Forward Relocation Request message sent to the SGSN.
  • the SGSN on the target side is based on the APN.
  • the Context Identifier can query the 2/3G subscription data from the HLR and obtain it accurately.
  • the first core network element in the first system first obtains the subscription information of the UE in the second system, and the first core network element is redirected to the second core in the second system.
  • the network element sends a forward relocation request message, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, for the second core network.
  • the element determines the subscription information corresponding to the context identifier according to the context identifier, and can implement the core network element of the second system when the UE switches between the first system and the second system. Obtaining the subscription information of the APN used by the UE in the second system, thereby improving the success rate of the UE switching between the first system and the second system.
  • S101 may include:
  • the first core network element sends a location update request message to the second subscription information storage network element, where the second subscription information storage network element is a network element that stores the UE subscription information in the second system;
  • the first core network element receives the first insertion subscription data message sent by the second subscription information storage network element, and the first insertion subscription data message includes the subscription information of the UE in the second system.
  • the first core network element may obtain the subscription information of the UE in the second system included in the first insertion subscription data message by receiving the first insertion subscription data message sent by the second subscription information storage network element.
  • the first core network element receives the insertion subscription data message sent by the second subscription information storage network element, the first core network element further includes:
  • the first core network element receives the location update response message sent by the second subscription information storage network element. Further, after the first core network element receives the first insertion subscription data message sent by the second subscription information storage network element, the first core network element further includes:
  • the first core network element updates the subscription information of the UE stored in the second system in the second core network element according to the subscription information of the UE in the second system in the second insertion subscription data message;
  • the first core network element sends a second insertion subscription data response message to the second subscription information storage network element.
  • the second subscription information storage network element notifies the first core network element by sending a second insertion subscription data message.
  • the first core network element updates the subscription information of the locally saved UE in the second system.
  • FIG. 3 is a flowchart of Embodiment 2 of the method for switching between systems according to the present invention. As shown in FIG. 3, the method for switching between systems in this embodiment includes:
  • the second subscription information storage network element receives the first core network element sent by the first system. a location update request message, where the second subscription information storage network element is a network element that stores UE subscription information in the second system;
  • the second subscription information storage network element sends a first insertion subscription data message to the first core network element, where the first insertion subscription data message includes the subscription information of the UE in the second system, so that the first core network element Sending a forward relocation request message to the second core network element in the second system, where the forward relocation request message includes a context identifier, where the value of the context identifier is a context identifier of the UE in the subscription information in the second system. value.
  • the second core network element after receiving the forward relocation request message sent by the first core network element, the second core network element sends a forward relocation request message, and determines the context identifier according to the context identifier in the forward relocation request message. Corresponding signing information.
  • the first system is a 2G system or a 3G system
  • the second system is a 4G system
  • the first system is a 4G system
  • the second system is a 2G system or a 3G system.
  • the second subscription information storage network element receives the location update request message sent by the first core network element in the first system, and sends the first insertion subscription to the first core network element. a data message, so that the first core network element sends a forward relocation request message to the second core network element in the second system, where the forward relocation request message includes a context identifier, and the value of the context identifier is the UE.
  • the value of the context identifier in the subscription information in the second system may be implemented.
  • the second subscription information storage network element receives the first insertion subscription data response message sent by the first core network element
  • the second subscription information storage network element sends a location update response message to the first core network element.
  • the second subscription information storage network element sends a second insertion subscription data message to the first core network element, so that the first core network element updates the subscription information of the UE in the second system according to the second insertion subscription data message.
  • the subscription information of the UE stored in the second system in the first core network element;
  • the second subscription information storage network element receives the second insertion subscription data response message sent by the first core network element. Further, after S201, it also includes:
  • the second subscription information storage network element sends a cancel location registration message to the third core network network element, where the third core network element is a core network element that is attached by the UE in the second system except the second core network element. So that the third core network element deletes the context information of the locally stored UE;
  • the second subscription information storage network element receives the cancel location registration response message sent by the third core network element.
  • FIG. 4 is a flowchart of Embodiment 3 of the method for switching between systems according to the present invention. As shown in FIG. 4, the method for switching between systems in this embodiment includes:
  • the second core network element in the second system receives the forward relocation request message sent by the first core network element in the first system, where the forward relocation request message includes a context identifier, and the value of the context identifier is The value of the context identifier in the subscription information of the UE in the second system.
  • the second core network element determines the subscription information corresponding to the context identifier according to the context identifier.
  • the second core network element in the second system receives the forward relocation request message sent by the first core network element in the first system, in the forward relocation request message. Include a context identifier, where the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, and then determining the subscription information corresponding to the context identifier according to the context identifier, so that the UE may be implemented in the first system and the second system.
  • the core network element of the second system accurately obtains the subscription information of the APN used by the UE in the second system, thereby improving the success rate of the UE switching between the first system and the second system.
  • the interaction process between the first core network element, the second subscription information storage network element, and the second core network element is taken as an example for the UE to switch between the first system and the second system.
  • the switching method is described in detail.
  • FIG. 5 is a flowchart of Embodiment 4 of an inter-system handover method according to the present invention.
  • the inter-system handover method in this embodiment is a UE switching from 4G to 2/3G, and the first core network element is in the UE.
  • the information about the subscription information of the UE in the second system is obtained as an example, including:
  • S401-S405 is attached to the LTE-EPS network by the UE through security, location update, and default bearer creation. This process is defined in the 3GPP 23401 protocol and will not be described in detail here.
  • the MME (via the Gr+ interface) sends a bit to the HLR. Set Update Request Request message.
  • the HLR sends a cancel location registration (Cancel Location) message to the old SGSN.
  • the old side SGSN deletes the locally cached context information of the user, and returns a Cancel Location Ack message to the HLR.
  • the HLR sends the user's 2/3G subscription information to the MME by using an Insert Subscriber Data message.
  • the MME locally saves the 2/3G subscription information of the user, and returns an Insert Subscriber Data Ack message to the HLR.
  • the HLR returns a Location Update Answer (Update Location Ack) message to the MME.
  • the HLR sends an Insert Subscriber Data message to the MME.
  • the MME updates the locally saved 2/3G subscription information, and returns an Insert Subscriber Data Ack message to the HLR.
  • the MME takes the Context Identifier in the "Forward Relocation Request" message from the 2/3G subscription data.
  • Other processing is the same as the definition of 3GPP 23401.
  • the 2G wireless access is not performed. Expand).
  • the UE originally performs services in the LTE network (4G) coverage area, and switches to the UMTS network (2/3G) coverage area for service through the handover process.
  • the first core network element acquires the subscription information of the UE in the second system, and then goes to the second system.
  • the second core network element sends a forward relocation request message, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, so that the second
  • the network element of the core network determines the subscription information corresponding to the context identifier according to the context identifier, and when the UE switches between the first system and the second system, the core network element of the second system accurately obtains the APN used by the UE in the second
  • the subscription information in the system further improves the success rate of the UE switching between the first system and the second system.
  • FIG. 6 is a flowchart of Embodiment 5 of the method for switching between systems according to the present invention.
  • the inter-system handover method in this embodiment is performed by the UE switching from 4G to 2/3G, and the first core network element is in the UE.
  • the TAU process is used to access the first core network element, the information about the subscription information of the UE in the second system is obtained as an example, including:
  • S501-S506 is a process for the UE to access the EPS network through the TAU process.
  • the TAU process is defined in the 3GPP 23401 protocol, and will not be described in detail herein.
  • the HLR sends the 2/3G subscription information of the user to the MME by using an "Insert Subscriber Data" message.
  • the MME locally saves the 2/3G subscription information of the user, and returns an "Insert Subscriber Data Ack" message to the HLR.
  • the HLR returns an "Update Location Ack" message to the MME.
  • the HLR when the 2/3G subscription information in the HLR changes, the HLR notifies the MME by using an "Insert Subscriber Data" message; after receiving the message, the MME updates the locally saved 2/3G subscription information. And return the "Insert Subscriber Data Ack" message to the HLR.
  • the MME takes the Context Identifier in the "Forward Relocation Request" message from the 2/3G subscription data.
  • Other processing is the same as the definition of 3GPP 23401.
  • the inter-system handover method after the UE accesses the first core network element through the TAU process by the first core network element, obtains the subscription information of the UE in the second system, and then goes to the second system.
  • the second core network element sends a forward relocation request message, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, so that the second
  • the network element of the core network determines the subscription information corresponding to the context identifier according to the context identifier, and when the UE switches between the first system and the second system, the core network element of the second system accurately obtains the APN used by the UE in the second
  • the subscription information in the system further improves the success rate of the UE switching between the first system and the second system.
  • FIG. 7 is a flowchart of Embodiment 6 of the method for switching between systems according to the present invention.
  • the inter-system handover method in this embodiment is performed by the UE switching from 2/3G to 4G, and the first core network element is in the UE.
  • the information about the subscription information of the UE in the second system is obtained as an example, including: S601-S604 is attached to the GPRS network for the UE through security, location update, default bearer creation, etc. This process is defined in the 3GPP 23060 protocol, and will not be described in detail herein.
  • the SGSN After receiving the Attach Complete message from the UE, the SGSN sends an Update Location Request message to the HSS (through the S6d interface) (this message is defined in 3GPP 29272).
  • the old MME replies to the HSS with a Cancel Location Ack message.
  • the HSS sends the 4G subscription information of the user to the SGSN through the "Insert Subscriber Data" message.
  • SGSN locally saves the user's 4G subscription information, and returns "Insert" to HSS.
  • the HSS returns an "Update Location Ack" message to the SGSN.
  • the HSS sends an Insert Subscriber Data message to the SGSN.
  • the SGSN updates the locally saved 4G subscription information, and returns an Insert Subscriber Data Ack message to the HSS.
  • the SGSN takes the Context Identifier in the "Forward Relocation Request" message from the 4G subscription data.
  • Other processing is the same as the definition of 3GPP 23401.
  • the first core network element acquires the subscription information of the UE in the second system, and then goes to the second system.
  • the second core network element sends a forward relocation request message, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, so that the second
  • the network element of the core network determines the subscription information corresponding to the context identifier according to the context identifier, and when the UE switches between the first system and the second system, the core network element of the second system accurately obtains the APN used by the UE in the second
  • the subscription information in the system further improves the success rate of the UE switching between the first system and the second system.
  • FIG. 8 is a flowchart of Embodiment 7 of the method for switching between systems according to the present invention.
  • the inter-system handover method in this embodiment is performed by the UE switching from 2/3G to 4G, and the first core network element is in the UE.
  • the information about the subscription information of the UE in the second system is obtained as an example, including: S701-S706 is that the UE accesses the GPRS network through the RAU process, and the RAU process is defined in the 3GPP 23060 protocol, and will not be described in detail herein.
  • the SGSN After returning the RAU Accept message to the UE, the SGSN sends an Update Location Request message to the HSS (through the S6d interface) (this message is defined in 3GPP 29272).
  • HSS sends the user's 4G subscription information to "Insert Subscriber Data"
  • the SGSN locally saves the user's 4G subscription information, and returns "Insert Subscriber Data Ack" to the HSS.
  • the HSS returns "Update Location Ack" to the SGSN.
  • the HSS when the 4G subscription information in the HSS changes, the HSS notifies the SGSN by using an "Insert Subscriber Data" message; after receiving the message, the SGSN updates the locally saved 4G subscription information to the HSS. Returns the "Insert Subscriber Data Ack" message.
  • the SGSN takes the Context Identifier in the "Forward Relocation Request" message from the 4G subscription data.
  • Other processing is the same as the definition of 3GPP 23401.
  • the inter-system handover method after the UE accesses the first core network element through the RAU process, obtains the subscription information of the UE in the second system, and then goes to the second system.
  • the second core network element sends a forward relocation request message, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, so that the second
  • the network element of the core network determines the subscription information corresponding to the context identifier according to the context identifier, and when the UE switches between the first system and the second system, the core network element of the second system accurately obtains the APN used by the UE in the second
  • the subscription information in the system further improves the success rate of the UE switching between the first system and the second system.
  • FIG. 9 is a schematic structural diagram of Embodiment 1 of an inter-system switching apparatus according to the present invention.
  • the inter-system switching apparatus in this embodiment may be a first core network element, including: an obtaining module 91 and a sending module. 92, the obtaining module 91 is configured to acquire the subscription information of the UE in the second system, and the sending module 92 is configured to send the forward relocation request message, the forward relocation request, to the second core network element in the second system.
  • the message includes a context identifier, where the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, so that the second core network element determines the subscription information corresponding to the context identifier according to the context identifier.
  • the first system is a 2G system or a 3G system
  • the second system is a 4G system
  • the first system is a 4G system
  • the second system is a 2G system or a 3G system.
  • the device in this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 1.
  • the principle and the technical effect are similar, and details are not described herein again.
  • the acquisition module 91 is specifically used to:
  • the second subscription information storage network element is a network element storing the UE subscription information in the second system
  • the obtaining module 91 is further configured to: after receiving the insert subscription data message sent by the second subscription information storage network element, send the first insertion subscription data response message to the second subscription information storage network element;
  • the obtaining module 91 is further configured to: after receiving the first insertion subscription data message sent by the second subscription information storage network element, receive the second insertion subscription data message sent by the second subscription information storage network element;
  • the device in this embodiment may be used to implement the technical solution of the first core network element in the method embodiment shown in FIG. 1 and FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • the inter-system switching device in this embodiment may be a first core network element, including a transmitter 11 and a receiver 12. And a memory 13 and a processor 14 connected to the transmitter 11, the receiver 12 and the memory 13, respectively.
  • the inter-system switching device may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device.
  • the embodiment of the present invention is not limited herein.
  • the memory 13 stores a set of program codes
  • the processor 14 is configured to call the program code stored in the memory 13 for performing the following operations:
  • forward relocation The request message includes a context identifier, where the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system, so that the second core network element determines the subscription information corresponding to the context identifier according to the context identifier.
  • the device in this embodiment may be used to perform the technical solution of the first core network element in the method embodiment shown in FIG. 1 or FIG. 5 to FIG. 8.
  • the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 11 is a schematic structural diagram of Embodiment 3 of an inter-system switching device according to the present invention.
  • the inter-system switching device in this embodiment may be a second subscription information storage network element, including: a receiving module 111 and a sending The module 112, where the receiving module 111 is configured to receive a location update request message sent by the first core network element in the first system, where the second subscription information storage network element is a network element that stores the UE subscription information in the second system;
  • the module 112 is configured to send a first insertion subscription data message to the first core network element, where the first insertion subscription data message includes the subscription information of the UE in the second system, so that the first core network element is in the second system.
  • the second core network element sends a forward relocation request message, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system.
  • the first system is a 2G system or a 3G system
  • the second system is a 4G system
  • the first system is a 4G system
  • the second system is a 2G system or a 3G system.
  • the device in this embodiment can be used to implement the technical solution of the method embodiment shown in FIG. 3, and the principle and the technical effect are similar, and details are not described herein again.
  • the receiving module 111 is further configured to: after sending the first insertion subscription data message to the first core network element, receive the first insertion subscription data response message sent by the first core network element; the sending module 112 is further configured to: A location update response message is sent to the first core network element.
  • the sending module 112 is further configured to: after the second subscription information storage network element sends the first insertion subscription data message to the first core network element, send the second insertion subscription data message to the first core network element, And causing the first core network element to update the subscription of the UE stored in the second core network element in the second system according to the subscription information of the UE in the second system in the second insertion subscription data message? From .
  • the receiving module 111 is further configured to receive a second insertion subscription data response message sent by the first core network element.
  • the sending module 112 is further configured to: after receiving the location update request message sent by the first core network element, send a cancel location registration message to the third core network element, the third core network element a core network element that is attached to the UE in the second system except the second core network element, so that the third core network element deletes the context information of the locally stored UE;
  • the receiving module 111 is further configured to receive a cancel location registration response message sent by the third core network element.
  • the device in this embodiment may be used to implement the technical solution of the second subscription information storage network element in the method embodiment shown in FIG. 3 and FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 12 is a schematic structural diagram of Embodiment 4 of the inter-system switching device according to the present invention.
  • the inter-system switching device in this embodiment may be a second subscription information storage network element, including a transmitter 121 and a receiver. 122.
  • the inter-system switching device may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device, and the embodiment of the present invention is not limited thereto.
  • the memory 123 stores a set of program codes, and the processor 124 is configured to call the program code stored in the memory 13 for performing the following operations:
  • the second subscription information storage network element is a network element storing the user equipment UE subscription information in the second system
  • the network element sends a forward relocation request message, where the forward relocation request message includes a context identifier, and the value of the context identifier is a value of the context identifier in the subscription information of the UE in the second system.
  • the device in this embodiment may be used to implement the technical solution of the second subscription information storage network element in the method embodiment shown in FIG. 3 and FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 13 is a schematic structural diagram of Embodiment 5 of the inter-system switching device according to the present invention.
  • the inter-system switching device in this embodiment may be a second core network element, including: a receiving module 131 and a processing module.
  • the receiving module 131 is configured to receive a forward relocation request message sent by the first core network element in the first system, where the forward relocation request message includes a context identifier, and the value of the context identifier is the second in the UE.
  • the value of the context identifier in the subscription information in the system The processing module 132 is configured to determine subscription information corresponding to the context identifier according to the context identifier.
  • the device in this embodiment may be used to implement the technical solution of the method embodiment shown in FIG. 4, and the principle and the technical effect are similar, and details are not described herein again.
  • FIG. 14 is a schematic structural diagram of Embodiment 6 of the inter-system switching device according to the present invention.
  • the inter-system switching device in this embodiment may be a second core network element, including a transmitter 141 and a receiver 142.
  • a memory 143 and a processor 144 coupled to the transmitter 141, the receiver 142, and the memory 143, respectively.
  • the inter-system switching device may also include a common component such as an antenna, a baseband processing component, a medium-frequency processing component, and an input/output device, and the embodiment of the present invention is not limited thereto.
  • a set of program codes is stored in the memory 143, and the processor 144 is configured to call the memory.
  • the program code stored in 13 is used to perform the following operations:
  • the forward relocation request message includes a context identifier, where the value of the context identifier is in the subscription information of the user equipment UE in the second system.
  • the value of the context identifier is in the subscription information of the user equipment UE in the second system.
  • the subscription information corresponding to the context identifier is determined according to the context identifier.
  • the device in this embodiment may be used to implement the technical solution of the second core network element in the method embodiment shown in FIG. 4 and FIG. 5, and the implementation principle and the technical effect are similar, and details are not described herein again.
  • FIG. 15 is a schematic structural diagram of Embodiment 1 of a network system according to the present invention.
  • the network system in this embodiment may include: The embodiment shown in FIG. 9 or FIG. Any one of the first core network element 100, any of the second subscription information storage network elements 200 of the embodiment shown in FIG. 11 or FIG. 12, and any one of the embodiments shown in FIG. 13 or FIG. The second core network element 300.
  • the disclosed apparatus and method may be implemented in other manners.
  • the device embodiments described above are merely illustrative.
  • the division of the unit is only a logical function division.
  • there may be another division manner for example, multiple units or components may be combined or Can be integrated into another system, or some features can be ignored, or not executed.
  • the mutual coupling or direct coupling or communication connection shown or discussed may be through some interface, indirect coupling or communication of the device or unit. It can be electrical, mechanical or other form.
  • the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, may be located in one place, or may be distributed to multiple network units. Some or all of the units may be selected according to actual needs to achieve the objectives of the solution of the embodiment.
  • each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit.
  • the above integrated unit can be implemented in the form of hardware or in the form of hardware plus software functional units.
  • the above-described integrated unit implemented in the form of a software functional unit can be stored in a computer readable storage medium.
  • the software functional unit is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device, etc.) or a processor to perform the method of various embodiments of the present invention.
  • a computer device which may be a personal computer, a server, or a network device, etc.
  • the foregoing storage medium includes: a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk, or an optical disk, and the like, which can store program codes. .

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Abstract

Des modes de réalisation de la présente invention concernent un procédé, un appareil et un système de réseau de transfert intercellulaire. Le procédé comprend les étapes suivantes : un premier élément de réseau central dans un premier système obtient des informations d'abonnement d'un équipement d'utilisateur (UE) dans un second système; et le premier élément de réseau central envoie un message de demande de relocalisation vers l'avant à un second élément de réseau central dans le second système, de telle sorte que le second élément de réseau central détermine des informations d'abonnement correspondant à un identificateur de contexte en fonction de l'identificateur de contexte, le message de demande de relocalisation vers l'avant comprenant l'identificateur de contexte, et une valeur de l'identificateur de contexte étant une valeur d'un identificateur de contexte dans les informations d'abonnement de l'équipement d'utilisateur dans le second système. Les solutions techniques de la présente invention permettent d'améliorer le taux de réussite de transfert intercellulaire de l'équipement d'utilisateur entre le premier système et le second système.
PCT/CN2014/080474 2013-06-27 2014-06-23 Procédé, appareil et système de réseau de transfert intercellulaire entre systèmes Ceased WO2014206251A1 (fr)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020200293A1 (fr) * 2019-04-02 2020-10-08 华为技术有限公司 Procédé et dispositif de positionnement de terminal

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103338489B (zh) * 2013-06-27 2016-12-28 华为技术有限公司 系统间切换方法、装置及网络系统
CN105682251B (zh) * 2014-11-19 2019-11-19 中兴通讯股份有限公司 网络连接方法及装置
CN105828399B (zh) * 2015-01-05 2020-02-14 中国移动通信集团四川有限公司 一种跟踪区更新方法及装置
RU2736420C1 (ru) * 2016-12-30 2020-11-17 Хуавэй Текнолоджиз Ко., Лтд. Способ передачи обслуживания, устройство опорной сети, устройство сети доступа и устройство терминала
US10893568B2 (en) * 2017-08-18 2021-01-12 Huawei Technologies Co., Ltd. Location and context management in a RAN INACTIVE mode
CN110881020B (zh) * 2018-09-06 2021-07-23 大唐移动通信设备有限公司 一种用户签约数据的鉴权方法及数据管理网元
CN111107607B (zh) * 2018-10-29 2022-05-13 中国移动通信集团安徽有限公司 接入域的确定方法和用于确定接入域的辅助方法
CN119865933A (zh) * 2023-10-20 2025-04-22 维沃移动通信有限公司 信息传输方法、装置、终端及核心网节点

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101282582A (zh) * 2008-05-16 2008-10-08 中兴通讯股份有限公司 一种跨无线接入技术的切换方法
CN102395118A (zh) * 2011-09-23 2012-03-28 电信科学技术研究院 基于附着流程更新终端可达状态信息的方法及装置
CN102625275A (zh) * 2011-02-01 2012-08-01 中兴通讯股份有限公司 获取终端上下文的方法、位置管理的方法、系统及网元
CN103338489A (zh) * 2013-06-27 2013-10-02 华为技术有限公司 系统间切换方法、装置及网络系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100744374B1 (ko) * 2005-07-15 2007-07-30 삼성전자주식회사 패킷 교환 기반의 네트워크에서 코어 네트워크 개체들 간의핸드오버 방법 및 장치

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101282582A (zh) * 2008-05-16 2008-10-08 中兴通讯股份有限公司 一种跨无线接入技术的切换方法
CN102625275A (zh) * 2011-02-01 2012-08-01 中兴通讯股份有限公司 获取终端上下文的方法、位置管理的方法、系统及网元
CN102395118A (zh) * 2011-09-23 2012-03-28 电信科学技术研究院 基于附着流程更新终端可达状态信息的方法及装置
CN103338489A (zh) * 2013-06-27 2013-10-02 华为技术有限公司 系统间切换方法、装置及网络系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020200293A1 (fr) * 2019-04-02 2020-10-08 华为技术有限公司 Procédé et dispositif de positionnement de terminal

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