WO2013097499A1 - 网关选择方法和设备 - Google Patents

网关选择方法和设备 Download PDF

Info

Publication number
WO2013097499A1
WO2013097499A1 PCT/CN2012/081766 CN2012081766W WO2013097499A1 WO 2013097499 A1 WO2013097499 A1 WO 2013097499A1 CN 2012081766 W CN2012081766 W CN 2012081766W WO 2013097499 A1 WO2013097499 A1 WO 2013097499A1
Authority
WO
WIPO (PCT)
Prior art keywords
pgw
mobile
apn
mme
indication information
Prior art date
Application number
PCT/CN2012/081766
Other languages
English (en)
French (fr)
Inventor
杨义
Original Assignee
电信科学技术研究院
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
Application filed by 电信科学技术研究院 filed Critical 电信科学技术研究院
Priority to EP12863312.0A priority Critical patent/EP2800421B1/en
Priority to US14/369,679 priority patent/US9736768B2/en
Publication of WO2013097499A1 publication Critical patent/WO2013097499A1/zh

Links

Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W48/00Access restriction; Network selection; Access point selection
    • H04W48/17Selecting a data network PoA [Point of Attachment]
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/18Processing of user or subscriber data, e.g. subscribed services, user preferences or user profiles; Transfer of user or subscriber data
    • H04W8/20Transfer of user or subscriber data

Definitions

  • the present invention relates to the field of wireless communications, and in particular, to a gateway selection method and device. Background technique
  • FIG. 1 shows the network architecture of the LTE-A (Long Term Evolution-Advanced) system after the RN is introduced.
  • the RN accesses the core network through the donor cell of the Donor evolved Node B (the donor base station).
  • the RN has no direct wired interface with the core network, and each RN can control one or more cells.
  • the interface between the user equipment (UE) and the RN is called the Uu interface
  • the interface between the RN and the DeNB is called the Un interface.
  • De B integrates some of the functions of PGW (Packet Data Network Gateway) and SGW (Serving Gateway).
  • PGW Packet Data Network Gateway
  • SGW Serving Gateway
  • the RN has the dual identity of the UE and the eNB (base station).
  • the startup process of the RN can be described in two phases: In the first phase, the RN arbitrarily accesses one base station as the UE, registers with the network, and accesses the RN O AM (Operation and Maintenance). , operating and maintaining the system), downloading the list of allowed DeNB cells (the donor base station cell), and then the RN logs out to the network; in the second phase, the RN selects a DeNB cell that is allowed to access, and establishes an RRC with the DeNB. (Radio Resource Control) Connection.
  • the RN arbitrarily accesses one base station as the UE, registers with the network, and accesses the RN O AM (Operation and Maintenance). , operating and maintaining the system), downloading the list of allowed DeNB cells (the donor base station cell), and then the RN logs out to the network; in the second phase, the RN selects a DeNB cell that is allowed to access, and establish
  • the DeNB selects a suitable MME (Mobility Management Entity) for the RN, and the MME selects the DeNB as the SGW and PGW of the RN.
  • the DeNB establishes a default bearer and a dedicated bearer for the RN, and then the OAM downloads the node configuration information to the RN to configure the RN. After the RN establishes the necessary S1 interface and X2 interface, it can work as a base station.
  • MME Mobility Management Entity
  • the eNB and the MME that the RN accesses may be existing devices, that is, the RN may not be supported.
  • the base station and MME to which the RN accesses must be RN-enabled.
  • the DeNB sends the IP address of the PGW and the SGW of the eNB to the MME.
  • the MME selects the DeNB as the PGW and the SGW of the RN according to the received IP address, and establishes the necessary interfaces with the eNB.
  • the HSS Home Subscriber Server
  • the subscription data of the RN includes information indicating that the subscription data is used for the RN, and includes a special APN (Access Point Name) indicating the PGW for connecting to the OAM.
  • the MME selects the PGW that can be connected to the OAM by using the special APN, so that the RN accesses the OAM and downloads the initial configuration information.
  • the MME since the MME receives the RN indication information sent by the DeNB, the MME ignores the subscription.
  • the APN information in the data selects the PGW and the SGW by using the IP addresses of the PGW and the SGW reported by the DeNB.
  • a mobile-supported relay that is, a mobile RN
  • a mobile RN can be deployed on a high-speed moving vehicle body to enhance signal quality in the vehicle body, or Switching to reduce the number of handovers and location updates for the UE.
  • FIG. 2 is a schematic diagram of the relationship of RN nodes that can be applied in a high-speed mobile environment.
  • the RN first connects to the network as the UE, and the network establishes an Evolved Packet System (EPS) bearer for the RN.
  • EPS Evolved Packet System
  • the RN accesses the OAM and downloads the necessary configuration data. Then establish the necessary interface with the core network and configure the Uu interface parameters to become a base station.
  • the RN is the serving base station of the UE.
  • the UE accesses the RN, all data of the UE is mapped to the bearer of the RN, and is sent to the next hop node by the PGW of the RN.
  • the DeNB deployed in the high-speed mobile scenario may not have the functions of the RN's PGW and SGW.
  • the MME selects the DeNB as the PGW and the SGW of the RN according to the IP addresses of the PGW and the SGW on the DeNB.
  • the DeNB deployed in the high-speed mobile scenario may not integrate the SGW/PGW function of the mobile RN.
  • the PGW of the mobile RN is likely to be located in the core network. Therefore, in general, the DeNB does not know the IP address of the SGW/PGW, so It is not feasible to select the PGW and the SGW for the mobile RN according to the mechanism in which the DeNB reports the gateway IP address in the prior art. Summary of the invention
  • the embodiment of the invention provides a gateway selection method and device for solving the problem of how to select a PGW for a mobile RN.
  • a gateway selection method comprising:
  • the MME receives the Initial UE message carrying the RN's identity indication information sent by the donor base station DeNB, and acquires the subscription data of the RN from the HSS;
  • the MME determines whether the RN is a mobile RN according to the identity indication information of the RN and/or the subscription data, and when the determination is yes, selects one PGW of the core network as the PGW of the RN.
  • An identity indication method comprising: After entering the second phase of startup, the mobile RN establishes an RRC connection with the DeNB;
  • the mobile RN During the establishment of the R C connection, the mobile RN sends identity indication information indicating that it is the RN or the mobile RN to the DeNB.
  • An identity indication forwarding method comprising:
  • the DeNB receives the identity indication information sent by the mobile RN indicating that it is the RN or the mobile RN;
  • the DeNB sends the Initial UE message carrying the identity indication information to the MME.
  • a method for sending contract data comprising:
  • the HSS receives the location update request sent by the MME;
  • the HSS returns the subscription data of the mobile relay node RN to the MME, the subscription data including the mobile RN indication information and/or the access point name APN pointing to the PGW capable of making the RN function as the base station.
  • An MME the MME includes:
  • a receiving unit configured to receive an Initial UE message that is sent by the DeNB and that carries the RN's identity indication information, and an acquiring unit, configured to acquire the subscription data of the RN from the HSS;
  • a determining unit configured to determine, according to the identity indication information of the RN and/or the subscription data, whether the RN is a mobile RN;
  • a selecting unit configured to select one PGW of the core network as the PGW of the RN when determining that the RN is a mobile RN.
  • a mobile RN the mobile RN includes:
  • An establishing unit configured to establish an RRC connection with the DeNB after entering the second phase of starting;
  • an indication unit configured to send the identity indication information indicating that the RN is the RN or the mobile RN to the DeNB during the establishment of the RRC connection.
  • a DeNB, the DeNB includes:
  • a receiving unit configured to receive identity indication information sent by the mobile RN to indicate that it is an RN or a mobile RN during an RRC connection establishment process with the mobile point RN;
  • a sending unit configured to send the Initial UE message carrying the identity indication information to the MME.
  • An HSS the HSS includes:
  • a receiving unit configured to receive a location update request sent by the MME
  • a response unit configured to return, to the MME, the subscription data of the mobile RN, where the subscription data includes the mobile RN indication information and/or an access point name APN that points to the PGW that can make the RN work normally as the base station.
  • the RN After the mobile RN enters the second phase of startup, the RN establishes an RRC connection with the DeNB, and is in the RRC. During the establishment of the connection, the identity indication information indicating that the RN is the RN or the mobile RN is sent to the DeNB. After receiving the identity indication information sent by the mobile RN indicating that the RN is the RN or the mobile RN, the DeNB will carry the identity indication information. The message is sent to the MME. After receiving the Initial UE message sent by the DeNB, the MME obtains the subscription data of the RN from the HSS, and determines whether the RN is a mobile RN according to the identity indication information and/or the subscription data. When the determination is yes, the core network is selected. One PGW is used as the PGW of the RN. It can be seen that the method implements a scheme for selecting a PGW for the mobile RN, thereby solving the problem of how to select a PGW for the mobile RN. DRAWINGS
  • FIG. 1 is a structural diagram of an E-UTRAN network including an RN in the prior art
  • FIG. 3 is a schematic flowchart of a method according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic flowchart of still another method according to an embodiment of the present disclosure.
  • FIG. 6 is a schematic flowchart of still another method according to an embodiment of the present disclosure.
  • FIG. 7A is a schematic flowchart of Embodiment 1 of the present invention.
  • FIG. 7C is a schematic flowchart of Embodiment 3 of the present invention.
  • FIG. 8 is a schematic structural diagram of a device according to an embodiment of the present disclosure.
  • FIG. 9 is a schematic structural diagram of another device according to an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of still another device according to an embodiment of the present disclosure.
  • FIG. 11 is a schematic structural diagram of still another device according to an embodiment of the present invention. detailed description
  • the embodiment of the present invention provides an identity indication method for the mobile RN, an identity forwarding method for the DeNB, a subscription data transmission method for the HSS, and a MME for the MME.
  • a gateway selection method will be separately described below.
  • an identity indication method provided by an embodiment of the present invention includes the following steps: Step 30: The mobile RN enters the second phase of startup;
  • Step 31 The mobile RN establishes an RRC connection with the DeNB.
  • the identity indication information indicating that the mobile RN is the RN or the mobile RN is sent to the De B.
  • the mobile RN may send the identity indication information indicating that it is the RN or the mobile RN to the DeNB by using the RRC setup complete message, that is, the identity indication information is carried in the RRC setup complete message.
  • the mobile RN can download an APN from the OAM (Operation and Maintenance System) to the PGW that can make the RN work as the base station; or obtain the local pre-configured Point to the APN of the PGW that enables the RN to function as a base station.
  • the mobile RN sends the APN to the De B while the mobile RN sends the identity indication information indicating that it is the RN or the mobile RN to the DeNB.
  • the mobile RN may send the APN to the DeNB by using a non-access stratum (NAS) message in the RRC setup complete message, that is, the APN is carried in the NAS message in the RRC setup complete message.
  • NAS non-access stratum
  • an identity indication forwarding method provided by an embodiment of the present invention includes the following steps:
  • Step 40 The DeNB receives, during the RRC connection establishment process with the mobile RN, the identity indication information that is sent by the mobile RN to indicate that the mobile RN is the RN or the mobile RN.
  • Step 41 The DeNB sends an initial terminal message (ie, Initial UE message) carrying the identity indication information to the MME.
  • an initial terminal message ie, Initial UE message
  • the DeNB may receive the identity indication information sent by the mobile RN by using an RRC setup complete message, that is, the identity indication information is carried in the RC setup complete message.
  • the DeNB may receive the NAS message carrying the APN sent by the mobile RN while receiving the identity indication information sent by the mobile RN.
  • the Initial UE message carries the NAS message.
  • a method for sending subscription data includes the following steps:
  • Step 50 The HSS receives a location update request sent by the MME.
  • Step 51 The HSS returns the subscription data of the mobile RN to the MME, where the subscription data includes the mobile RN indication information and/or an APN pointing to the PGW capable of making the RN work normally as the base station.
  • the subscription data may further include an APN pointing to the PGW connected to the OAM; then, the pointing enables the RN of the PGW that the RN to function as the base station to work with a specific flag, the specific flag is used to indicate that the corresponding APN is used for selection.
  • the RN be the PGW that the base station works normally.
  • the APN pointing to the PGW connected to the OAM carries a specific flag indicating that the corresponding APN is used to select the PGW connected to the OAM.
  • the gateway selection method provided by the embodiment of the present invention includes the following steps:
  • Step 60 The MME receives an Initial UE message that is sent by the DeNB and carries the identity indication information of the RN.
  • Step 61 The MME acquires subscription data of the RN from the HSS.
  • Step 62 The MME determines whether the RN is a mobile RN according to the identity indication information and/or the subscription data of the RN.
  • Step 63 When determining that the RN is a mobile RN, the MME selects one PGW of the core network as the PGW of the RN.
  • the MME determines, according to the identity indication information of the RN, whether the RN is a mobile RN, and the specific implementation may be as follows:
  • the MME determines whether the RN's identity indication information indicates that the RN is a mobile RN, and if yes, determines that the RN is a mobile RN, otherwise determines that the RN is a fixed RN, and selects a PGW and the fixed RN according to the prior art when the RN is a fixed RN. SGW.
  • the MME determines whether the RN is a mobile RN according to the identity indication information of the RN and the subscription data, and the specific implementation may be as follows:
  • the PGW and the SGW are selected for the fixed RN according to the prior art when the RN is fixed.
  • the MME determines whether the RN is a mobile RN according to the subscription data, and the specific implementation may be as follows:
  • the MME determines whether the subscription data includes the mobile RN indication information, and if so, determines that the RN is a mobile RN, and otherwise determines that the RN is a fixed RN.
  • a PGW of the core network is selected as the PGW of the RN, and the specific implementation may be as follows:
  • the MME # is the APN or the local pre-configuration information in the subscription data or the APN of the RN, and selects one PGW of the core network as the PGW of the RN.
  • a PGW of the core network is selected as the PGW of the RN, and the specific implementation may be as follows:
  • the MME When the MME includes two APNs in the subscription data, the APNs with the specific tags in the two APNs are selected, the PGW information is queried in the DNS (Domain Name System) server according to the selected APN, and one of the PGWs selected is selected.
  • a PGW as the RN the specific flag is used to indicate that the corresponding APN is used to select a PGW that causes the RN to function as a base station; or
  • the MME When the MME includes two APNs in the subscription data, the APNs that do not have a specific tag in the two APNs are selected, the PGW information is queried in the DNS server according to the selected APN, and one of the queried PGWs is selected as the RN. PGW; the specific flag is used to indicate that the corresponding APN is used to select a PGW connected to the OAM; or
  • the MME when the MME includes an APN in the subscription data, the MME queries the PGW according to the APN, and selects one PGW as the RN from the queried PGW. According to the local pre-configuration information, a PGW of the core network is selected as the PGW of the RN, and the specific implementation may be as follows:
  • the MME queries the PGW according to the APN, and selects one of the PGWs as the PGW from the queried PW;
  • the MME selects the PGW corresponding to the IP address as the PGW of the RN.
  • a PGW of the core network is selected as the PGW of the RN, and the specific implementation can be: ⁇ :
  • the MME reads the APN in the AS message, queries the PGW according to the APN, and selects one of the PGWs that are queried. As the PGW of the RN.
  • the MME may further select a SGW that is closer and lighter in load according to the geographic location of the RN and the load status of each SGW.
  • Embodiment 1 is a diagrammatic representation of Embodiment 1:
  • the MME determines whether it is a fixed RN or a mobile RN according to the subscription data, and selects the PGW according to the subscription data, as shown in FIG. 7A:
  • Step 1 The mobile RN sends the identity indication information of the RN or the mobile RN to the DeNB in the RRC connection establishment process.
  • the mobile RN When the mobile RN informs the DeNB that it is a mobile RN, it may carry the identity indication information of the mobile RN in the RRC Connection Setup Complete (ie, RRC Connection Setup Complete) message.
  • RRC Connection Setup Complete ie, RRC Connection Setup Complete
  • the mobile RN informs the DeNB that it is the RN
  • the RN identity indication information carried in the existing RRC Connection Setup Complete message can be reused.
  • Step 2 After receiving the identity indication information in the RRC connection establishment process, the DeNB sends the identity indication information to the MME by using the Initial UE message.
  • Step 3 The MME initiates a location update process to the HSS, and the HSS sends the subscription data of the mobile RN to the MME, where the subscription data includes the mobile RN indication information.
  • the subscription data further includes two APNs: one APN is used to select the connection. Another APN is used to select a PGW that can make the RN work as a base station.
  • the subscription data includes an APN.
  • the PGW corresponding to the APN can be used as a PGW that can make the RN work as a base station. As a PGW that enables the RN to access the OAM.
  • the APN for selecting the PGW that can make the RN work as the base station carries a specific flag, and the specific flag is used to indicate that the APN is used to select a PGW that enables the RN to work normally as the base station;
  • the APN for selecting the PGW connected to the OAM carries a specific flag indicating that the corresponding APN is used to select the PGW connected to the OAM.
  • Step 4 The MME learns that the current RN is a mobile RN according to the mobile RN indication information included in the subscription data, according to the APN with or without a specific label in the subscription data (ie, for selecting to make the RN work normally as the base station).
  • the PGW's APN selects the PGW for the mobile RN.
  • the MME may use the mechanism for selecting the SGW for the UE in the prior art, and select the SGW for the mobile RN; the MME sends the information such as the IP address of the selected PGW to the SGW through the session establishment process; the SGW and the PGW perform the session establishment process.
  • Step 5 The MME accepts the attach request of the mobile RN, and sends an S1 context establishment request to the DeNB.
  • Step 6 The air interface bearer is established between the DeNB and the RN through the RRC connection reconfiguration process.
  • Embodiment 2 is a diagrammatic representation of Embodiment 1:
  • the MME determines whether it is a fixed RN or a mobile RN according to the identity indication information sent by the mobile RN, and selects the PGW according to the subscription data, as shown in FIG. 7B:
  • Step 1 The mobile RN sends the identity indication information of the mobile RN to the DeNB in the RRC connection establishment process.
  • the identity indication information of the mobile RN may be carried in the RRC Connection Setup Complete (ie, RRC Connection Setup Complete) message.
  • Step 2 After receiving the identity indication information in the RRC connection establishment process, the DeNB sends the identity indication information to the MME by using the Initial UE message.
  • Step 3 The MME initiates a location update process to the HSS, and the HSS sends the subscription data of the mobile RN to the MME, where the subscription data includes the RN indication information.
  • the subscription data further includes two APNs: one APN is used to select to connect to the OAM. Another APN is used to select a PGW that can make the RN work as a base station; or, the subscription data includes an APN, and the PGW corresponding to the APN can be used as a PGW capable of making the RN work as a base station, or as a PGW. Let R access the OGM's PGW.
  • the APN for selecting the PGW that can make the RN work as the base station carries a specific flag, and the specific flag is used to indicate that the APN is used to select a PGW that enables the RN to work normally as the base station;
  • the APN for selecting the PGW connected to the OAM carries a specific flag indicating that the corresponding APN is used to select the PGW connected to the OAM.
  • Step 4 The MME learns that the current device is R according to the RN indication information included in the subscription data, and according to the DeNB. After the sent identity indication information determines that the RN is a mobile RN, the mobile RN is selected according to the APN with the specific tag or the specific tag in the subscription data (ie, the APN for selecting the PGW that makes the RN work as the base station). PGW. The MME may use the mechanism for selecting the SGW for the UE in the prior art, and select the SGW for the mobile RN. The MME sends the information such as the IP address of the selected PGW to the SGW through the session establishment process; the SGW performs a session establishment process with the PGW.
  • Step 5 The MME accepts the attach request of the mobile RN, and sends an S1 context establishment request to the De B.
  • Step 6 The air interface bearer is established between the DeNB and the RN through the RRC connection reconfiguration process.
  • Embodiment 3 is a diagrammatic representation of Embodiment 3
  • the MME determines whether it is a fixed RN or a mobile RN according to the identity indication information sent by the mobile RN, and selects the PGW according to the local pre-configuration information, as shown in FIG. 7C:
  • Step 1 The mobile RN sends the identity indication information of the RN or the mobile RN to the DeNB in the RRC connection establishment process.
  • the mobile RN When the mobile RN informs the DeNB that it is a mobile RN, it may carry the identity indication information of the mobile RN in the RRC Connection Setup Complete (ie, RRC Connection Setup Complete) message.
  • RRC Connection Setup Complete ie, RRC Connection Setup Complete
  • Step 2 After receiving the identity indication information in the RRC connection establishment process, the DeNB sends the identity indication information to the MME by using the Initial UE message.
  • Step 3 The MME initiates a location update process to the HSS, and the HSS sends the subscription data of the mobile RN to the MME, where the subscription data includes RN indication information.
  • the subscription data includes a step 4 for selecting a PGW connected to the OAM: MME
  • the RN indicates that the current device is the RN according to the RN indication information included in the subscription data, and after determining that the RN is the mobile RN according to the identity indication information sent by the DeNB, selects the PGW for the mobile RN according to the local pre-configuration information.
  • the MME may use the mechanism for selecting the SGW for the UE in the prior art, and select the SGW for the mobile RN.
  • the MME sends the information such as the IP address of the selected PGW to the SGW through the session establishment process; the SGW and the PGW perform the session establishment process.
  • the local pre-configuration information includes the APN information of the PGW or the IP address information of the PGW that can be used as the mobile RN.
  • Step 5 The MME accepts the attach request of the mobile RN, and sends an S1 context establishment request to the DeNB.
  • Step 6 The air interface bearer is established between the DeNB and the RN through the RRC connection reconfiguration process.
  • Embodiment 4 is a diagrammatic representation of Embodiment 4:
  • the MME determines whether it is a fixed RN or a mobile RN according to the subscription data, and selects the PGW according to the local pre-configuration information, as shown in FIG. 7D:
  • Step 1 The mobile RN sends the identity indication information of the RN or the mobile RN to the DeNB in the RRC connection establishment process.
  • the mobile RN may carry the identity indication information of the mobile RN in the RRC Connection Setup Complete (ie, RRC Connection Setup Complete) message.
  • the mobile RN informs the DeNB that it is the RN
  • the RN identity indication information carried in the existing RRC Connection Setup Complete message can be reused.
  • Step 2 After receiving the identity indication information in the RRC connection establishment process, the DeNB sends the identity indication information to the MME by using the Initial UE message.
  • Step 3 The MME initiates a location update process to the HSS, and the HSS sends the subscription data of the mobile RN to the MME, where the subscription data includes the mobile RN indication information.
  • the subscription data further includes an APN for selecting the PGW connected to the OAM.
  • Step 4 The MME learns that the current RN is a mobile RN according to the mobile RN indication information included in the subscription data, and selects a PGW for the mobile RN according to the local pre-configuration information.
  • the MME may use the mechanism for selecting the SGW for the UE in the prior art, and select the SGW for the mobile RN; the MME sends the information such as the IP address of the selected PGW to the SGW through the session establishment process; the SGW and the PGW perform the session establishment process.
  • the local pre-configuration information includes the APN information of the PGW or the IP address information of the PGW that can be used as the mobile RN.
  • Step 5 The MME accepts the attach request of the mobile RN, and sends an S1 context establishment request to the DeNB.
  • Step 6 The air interface bearer is established between the DeNB and the RN through the RRC connection reconfiguration process.
  • Embodiment 5 is a diagrammatic representation of Embodiment 5:
  • the MME determines whether it is a fixed RN or a mobile RN according to the identity indication information sent by the mobile RN, and selects the PGW according to the APN in the NAS message, as shown in FIG. 7E:
  • Step 0 The mobile RN downloads from the OAM to the APN information of the PGW that can make the RN work as the base station, or obtains the locally pre-configured APN information that points to the PGW that can make the RN work normally as the base station.
  • the mobile RN can download the APN information from the OAM during the first phase of startup.
  • Step 1 The mobile RN sends the identity indication information of the mobile RN and the APN information to the DeNB in the RRC connection establishment process.
  • the RRC connection setup complete (ie, the RRC Connection Setup Complete) message may carry the identity indication information of the mobile RN, and the APN information is carried in the NAS message of the RRC Connection Setup Complete message.
  • Step 2 After receiving the identity indication information and the APN information in the RRC connection establishment process, the DeNB sends the identity indication information and the NAS message carrying the APN information to the MME through the Initial UE message.
  • Step 3 The MME initiates a location update process to the HSS, and the HSS sends the subscription data of the mobile RN to the MME.
  • the subscription data includes RN indication information; the subscription data further includes an APN for selecting a PGW connected to the OAM.
  • Step 4 The MME learns that the current device is R according to the RN indication information included in the subscription data, and determines that the RN is a mobile RN according to the identity indication information sent by the DeNB, and then selects the PGW according to the APN carried in the NAS message. .
  • the MME may use the mechanism for selecting the SGW for the UE in the prior art, and select the SGW for the mobile RN; the MME sends the information such as the IP address of the selected PGW to the SGW through the session establishment process; the SGW and the PGW perform the session establishment process.
  • Step 5 The MME accepts the attach request of the mobile RN, and sends an S1 context establishment request to the DeNB.
  • Step 6 The air interface bearer is established between the DeNB and the RN through the RRC connection reconfiguration process.
  • the MME determines whether it is a fixed RN or a mobile RN according to the subscription data, and selects the PGW according to the APN in the NAS message, as shown in FIG. 7F:
  • Step 0 The mobile RN downloads from the OAM to the APN information of the PGW that can make the RN work as the base station, or obtains the locally pre-configured APN information that points to the PGW that can make the RN work normally as the base station.
  • the mobile RN can download the APN information from the OAM during the first phase of startup.
  • Step 1 The mobile RN sends the identity indication information of the RN or the mobile RN and the APN information to the DeNB in the RRC connection establishment process.
  • the RRC connection setup complete (ie, the RRC Connection Setup Complete) message may carry the identity indication information of the mobile RN, and the APN is carried in the NAS message of the RRC Connection Setup Complete message. information.
  • the mobile RN informs the DeNB that the RN is the RN
  • the RN identity indication information carried in the existing RRC Connection Setup Complete message may be reused, and the APN information is carried in the NAS message of the RRC Connection Setup Complete message.
  • Step 2 After receiving the identity indication information and the NAS message carrying the APN information in the RRC connection establishment process, the DeNB sends the identity indication information and the NAS message to the MME by using the Initial UE message.
  • Step 3 The MME initiates a location update process to the HSS, and the HSS sends the subscription data of the mobile RN to the MME, where the subscription data includes the mobile RN indication information.
  • the subscription data further includes an APN for selecting the PGW connected to the OAM.
  • Step 4 The MME learns that the current RN is a mobile RN according to the mobile RN indication information included in the subscription data, and selects a PGW for the mobile RN according to the APN carried in the NAS message.
  • the MME may use the mechanism for selecting the SGW for the UE in the prior art, and select the SGW for the mobile RN; the MME will select the IP address of the PGW through the session establishment process.
  • the information is sent to the SGW; the SGW and the PGW perform a session establishment process.
  • Step 5 The MME accepts the attach request of the mobile RN, and sends an S1 context establishment request to the De B.
  • Step 6 The air interface bearer is established between the DeNB and the RN through the RRC connection reconfiguration process.
  • an embodiment of the present invention further provides an MME, where the MME includes:
  • the receiving unit 80 is configured to receive, by the DeNB, an Initial UE message that carries the RN's identity indication information, and an acquiring unit 81, configured to acquire the subscription data of the RN from the subscription user home server HSS, where the determining unit 82 is configured to Determining information of the RN and/or the subscription data, determining whether the RN is a mobile RN;
  • the selecting unit 83 is configured to select one PGW of the core network as the PGW of the RN when determining that the RN is a mobile RN.
  • the determining unit 82 is configured to:
  • the determining unit 82 is configured to:
  • the determining unit 82 is configured to:
  • Determining whether the subscription data includes mobile RN indication information and if yes, determining that the RN is a mobile RN, otherwise determining that the RN is a fixed RN.
  • the selecting unit 83 is configured to:
  • the selecting unit 83 is configured to:
  • the APNs with specific tags in the two APNs are selected, the PGW information is queried in the DNS server according to the selected APN, and one of the queried PGWs is selected as the RN.
  • the specific flag is used to indicate that the corresponding APN is used to select a PGW that causes the RN to function as a base station; or
  • the MME When the MME includes two APNs in the subscription data, the APNs that do not have a specific tag in the two APNs are selected, the PGW information is queried in the DNS server according to the selected APN, and one of the PGWs selected is selected as the a PGW of the RN; the specific flag is used to indicate that the corresponding APN is used to select a PGW connected to the OAM; or,
  • the information about the PGW is queried by the DNS server according to the APN, and one PGW is selected as the PGW from the queried PGW.
  • the selecting unit 83 is configured to:
  • the information about the PGW is queried by the DNS server according to the APN, and one PGW is selected as the PGW of the RN from the queried PGW; or
  • the PGW corresponding to the IP address is selected as the PGW of the RN.
  • the selecting unit 83 is configured to:
  • the APN reported by the RN is carried in the non-access stratum NAS message in the Initial UE message
  • the APN in the NAS message is read, and the information of the PGW is queried in the DNS server according to the APN, and the query is One of the PGWs is selected as the PGW of the RN.
  • the MME further includes:
  • the selecting unit 84 is configured to select an SGW for the RN according to the geographic location where the RN is currently located and the load condition of each serving gateway SGW.
  • an embodiment of the present invention further provides a mobile RN, where the mobile RN includes:
  • the establishing unit 90 is configured to establish an RRC connection with the DeNB after entering the second phase of starting;
  • the indicating unit 91 is configured to send, to the DeNB, the identity indication information indicating that the RN is the RN or the mobile RN during the establishment of the RRC connection.
  • the indicating unit 91 is configured to:
  • the identity indication information indicating that it is the RN or the mobile RN is sent to the DeNB through the RC setup complete message. Further, the mobile RN further includes:
  • the obtaining unit 92 is configured to: before the establishing an RRC connection with the DeNB, download an access point name APN from the OAM to the PGW that can make the RN work as the base station; or obtain a locally pre-configured PGW that can enable the RN to work normally as the base station APN;
  • the indication unit 91 is further configured to: send the APN to the DeNB while transmitting the identity indication information indicating that it is the RN or the mobile RN to the DeNB.
  • the indicating unit 91 is configured to:
  • the non-access stratum NAS message in the RC setup complete message is sent to the DeNB.
  • an embodiment of the present invention further includes a DeNB, where the DeNB includes:
  • the receiving unit 100 is configured to receive an indication sent by the mobile R during an RRC connection establishment process with the mobile RN.
  • the sending unit 101 is configured to send an initial terminal message (ie, an Initial UE message) that carries the identity indication information to the mobility management entity MME.
  • an initial terminal message ie, an Initial UE message
  • the receiving unit 100 is configured to:
  • the receiving unit 100 is further configured to: receive the identity finger sent by the mobile RN
  • the Initial UE message sent by the sending unit 101 further carries the AS message carrying the AP information.
  • an embodiment of the present invention further provides an HSS, where the HSS includes:
  • the receiving unit 110 is configured to receive a location update request sent by the MME.
  • the response unit 111 is configured to return, to the MME, the subscription data of the mobile RN, where the subscription data includes the mobile RN indication information and/or the access point name APN of the PGW capable of making the RN work as the base station.
  • the subscription data returned by the response unit 111 further includes an APN pointing to the PGW connected to the OAM; the APN returned by the response unit 111 to the PGW capable of causing the RN to function as a base station with a specific tag, the specific The flag is used to indicate that the corresponding APN is used to select a PGW that causes the RN to function as a base station; or, the APN that points to the PGW connected to the operation and maintenance system OAM carries a specific flag, which is used to indicate that the corresponding APN is used for selection. Connect to the PAM of the OAM.
  • the beneficial effects of the present invention include:
  • the mobile RN establishes an RRC connection with the De B after entering the second phase of the startup, and sends the identity indication information indicating that the RN is the RN or the mobile RN to the RRC connection establishment process.
  • the DeNB After receiving the identity indication information that is sent by the mobile RN to indicate that the RN is the RN or the mobile RN, the DeNB sends the Initial UE message carrying the identity indication information to the MME.
  • the MME acquires the RN from the HSS.
  • the subscription data determines whether the RN is a mobile RN according to the identity indication information and/or the subscription data.
  • one PGW of the core network is selected as the PGW of the RN. It can be seen that the method implements a scheme for selecting a PGW for the mobile RN, thereby solving the problem of how to select a PGW for the mobile RN.
  • 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 be embodied in the form of a computer program product embodied on one or more computer-usable storage media (including but not limited to disk storage, CD-ROM, optical storage, etc.) in which computer usable program code is embodied.
  • computer-usable storage media including but not limited to disk storage, CD-ROM, optical storage, etc.
  • the present invention is directed to a flowchart of a method, apparatus (system), and computer program product according to an embodiment of the present invention. And / or block diagram to describe. It will be understood that each flow and/or block of the flowchart illustrations and/or FIG.
  • These computer program instructions can be provided to a processor of a general purpose computer, special purpose computer, embedded processor, or other programmable data processing device to produce a machine for the execution of instructions for execution by a processor of a computer or other programmable data processing device.
  • 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.

Landscapes

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

Abstract

本发明实施例公开了一种网关选择方法和设备,涉及无线通信技术领域,用于解决如何为移动中继节点RN选择分组数据网关PGW的问题。本发明中,移动性管理实体MME接收施主基站DeNB发送的携带RN的身份指示信息的初始终端消息Initial UE message,从签约用户归属服务器HSS获取所述RN的签约数据;MME根据所述RN的身份指示信息和/或所述签约数据,确定所述RN是否为移动RN,在确定为是时,选择核心网的一个PGW作为所述RN的PGW。采用本发明,解决了如何为移动RN选择PGW的问题。

Description

网关选择方法和设备 本申请要求在 2011年 12月 28日提交中国专利局、 申请号为 201110448323.3、 发明名称为
"网关选择方法和设备"的中国专利申请的优先权, 其全部内容通过引用结合在本申请中。 技术领域 本发明涉及无线通信领域, 尤其涉及一种网关选择方法和设备。 背景技术
现有技术中, 为了解决布网成本以及覆盖问题, 各厂商和标准化组织将 RN ( Relay Node, 中继节点) 引入到蜂窝系统中, 以增加覆盖。 现有技术中的 RN称为固定中继, 不 支持移动性。 图 1 为 LTE-A ( Long Term Evolution-Advanced, 长期演进升级) 系统引入 RN后的网络架构, RN通过 DeNB ( Donor evolved Node B , 施主基站)下的 donor cell (施 主小区)接入到核心网, RN与核心网没有直接的有线接口, 每个 RN可以控制一个或多 个小区。 在此架构下, UE ( User Equipment, 用户设备)与 RN之间的接口称为 Uu口, 而 RN与 DeNB之间的接口称为 Un口。De B集成了部分 PGW( Packet Data Network Gateway, 分组数据网关) 和 SGW ( Serving Gateway, 服务网关) 的功能。
RN具有 UE和 eNB (基站) 的双重身份。 根据协议 3GPP TS36.300的描述, RN的启 动过程可以分为两个阶段描述: 在第一阶段时, RN以 UE的身份任意接入一个基站, 向网 络注册, 访问 RN O AM ( Operation and Maintenance, 操作与维护系统), 下载允许接入的 DeNB cell (施主基站小区) 列表, 然后 RN向网络注销; 在第二阶段时, RN选择一个允 许接入的 DeNB cell, 与该 DeNB之间建立 RRC ( Radio Resource Control , 无线资源控制) 连接。 DeNB为 RN选择一个合适的 MME( Mobility Management Entity,移动性管理实体), MME选择 DeNB作为 RN的 SGW和 PGW。DeNB为 RN建立默认承载以及所需的专用承 载, 然后 OAM将节点配置信息下载到 RN, 对 RN进行配置。 RN再建立必要的 S1接口 和 X2接口后, 就可以像基站一样正常工作了。
在第一阶段时, RN接入的 eNB、 MME可以是现有的设备, 即可以不支持 RN。 在第 二阶段时, RN接入的基站和 MME必须是支持 RN的。 而且在这个阶段, DeNB将自己集 成的 PGW和 SGW的 IP地址发送给 MME, MME根据收到的 IP地址选择 DeNB作为 RN 的 PGW和 SGW, 并与之建立必要的接口。
在 RN启动过程中, HSS ( Home Subscriber Server, 归属签约用户服务器)发给 MME 的 RN 的签约数据中包含指示该签约数据用于 RN 的信息, 并且包含一个特殊的 APN ( Access Point Name,接入点名称),该 APN指向用于连接 OAM的 PGW。在第一阶段中, MME利用该特殊 APN选择可以连接到 OAM的 PGW, 以便于 RN访问 OAM并下载初始 配置信息, 第二阶段中, 由于 MME收到了 DeNB发来的 RN指示信息, 便忽略签约数据 中的 APN信息, 利用 DeNB上报的 PGW和 SGW的 IP地址选择 PGW和 SGW。
为了解决高速移动环境中信号覆盖差, 以及切换频繁等问题, 一种支持移动性的中继 即移动 RN可以部署在高速移动的车体上, 用来增强车体内的信号质量, 也可以通过群切 换来减少 UE的切换次数和位置更新次数。
图 2是一种可以应用在高速移动环境中的 RN节点关系示意图。 RN首先以 UE的身份 连接网络, 网络为 RN建立演进的分组系统(Evolved Packet System, EPS )承载。 RN访 问 OAM, 下载必要的配置数据。 然后与核心网建立必要的接口, 并配置 Uu口参数, 从而 成为一个基站。 从 UE看来, RN就是 UE的服务基站。 当 UE接入 RN时, UE的一切数 据都映射到 RN的承载上, 经 RN的 PGW发往下一跳节点。
需要注意的是,部署于高速移动场景中的 DeNB可能不具备 RN的 PGW和 SGW的功 能。
在实现本发明的过程中, 发明人发现现有技术中存在以下技术问题:
在 RN启动的第二阶段中, MME根据 DeNB上 4艮的 PGW和 SGW的 IP地址选择 DeNB 作为 RN的 PGW和 SGW。 但是部署于高速移动场景的 DeNB可能并不会集成移动 RN的 SGW/PGW功能, 移动 RN的 PGW很可能是位于核心网的, 因此一般情况下 DeNB是不 知道 SGW/PGW的 IP地址的, 所以沿用现有技术中 DeNB上报网关 IP地址的机制为移动 RN选择 PGW和 SGW, 是不可行的。 发明内容
本发明实施例提供一种网关选择方法和设备, 用于解决如何为移动 RN选择 PGW的 问题。
一种网关选择方法, 该方法包括:
MME接收施主基站 DeNB发送的携带 RN的身份指示信息的 Initial UE message, 从 HSS获取所述 RN的签约数据;
MME根据所述 RN的身份指示信息和 /或所述签约数据,确定所述 RN是否为移动 RN, 在确定为是时, 选择核心网的一个 PGW作为所述 RN的 PGW。
一种身份指示方法, 该方法包括: 移动 RN在进入启动的第二阶段后, 与 DeNB建立 RRC连接;
移动 RN在 R C连接的建立过程中,将指示自身为 RN或移动 RN的身份指示信息发 送给 DeNB。
一种身份指示转发方法, 该方法包括:
DeNB在与移动 RN的 RRC连接建立过程中, 接收移动 RN发送的指示自身为 RN或 移动 RN的身份指示信息;
DeNB将携带所述身份指示信息的 Initial UE message, 发送给 MME。
一种签约数据发送方法, 该方法包括:
HSS接收 MME发送的位置更新请求;
HSS向 MME返回移动中继节点 RN的签约数据, 该签约数据中包含移动 RN指示信 息和 /或指向能够使 RN作为基站正常工作的 PGW的接入点名 APN。
一种 MME, 该 MME包括:
接收单元, 用于接收 DeNB发送的携带 RN的身份指示信息的 Initial UE message; 获取单元, 用于从 HSS获取所述 RN的签约数据;
确定单元, 用于根据所述 RN的身份指示信息和 /或所述签约数据, 确定所述 RN是否 为移动 RN;
选择单元, 用于在确定所述 RN是移动 RN时, 选择核心网的一个 PGW作为所述 RN 的 PGW。
一种移动 RN, 该移动 RN包括:
建立单元, 用于在进入启动的第二阶段后, 与 DeNB建立 RRC连接;
指示单元, 用于在 RRC连接的建立过程中, 将指示自身为 RN或移动 RN的身份指示 信息发送给 DeNB。
一种 DeNB, 该 DeNB包括:
接收单元, 用于在与移动点 RN的 RRC连接建立过程中,接收移动 RN发送的指示自 身为 RN或移动 RN的身份指示信息;
发送单元, 用于将携带所述身份指示信息的 Initial UE message, 发送给 MME。
一种 HSS, 该 HSS包括:
接收单元, 用于接收 MME发送的位置更新请求;
响应单元, 用于向 MME返回移动 RN的签约数据, 该签约数据中包含移动 RN指示 信息和 /或指向能够使 RN作为基站正常工作的 PGW的接入点名 APN。
本方案中, 移动 RN在进入启动的第二阶段后, 与 DeNB建立 RRC连接, 并在 RRC 连接的建立过程中,将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB; DeNB接 收移动 RN发送的指示自身为 RN或移动 RN的身份指示信息后, 将携带该身份指示信息 的 Initial UE message发送给 MME; MME接收 DeNB发送的 Initial UE message后,从 HSS 获取 RN的签约数据, 根据身份指示信息和 /或签约数据, 确定该 RN是否为移动 RN, 在 确定为是时, 选择核心网的一个 PGW作为所述 RN的 PGW。 可见, 本方法实现了为移动 RN选择 PGW的方案, 进而解决了如何为移动 RN选择 PGW的问题。 附图说明
图 1为现有技术中包含 RN的 E-UTRAN网络结构图;
图 2为现有技术中移动 RN的节点关系图;
图 3为本发明实施例提供的方法流程示意图;
图 4为本发明实施例提供的另一方法流程示意图;
图 5为本发明实施例提供的又一方法流程示意图;、
图 6为本发明实施例提供的再一方法流程示意图;
图 7A为本发明实施例一的流程示意图;
图 7B为本发明实施例二的流程示意图;
图 7C为本发明实施例三的流程示意图;
图 7D为本发明实施例四的流程示意图;
图 7E为本发明实施例五的流程示意图;
图 7F为本发明实施例六的流程示意图;
图 8为本发明实施例提供的设备结构示意图;
图 9为本发明实施例提供的另一设备结构示意图;
图 10为本发明实施例提供的又一设备结构示意图;
图 11为本发明实施例提供的再一设备结构示意图。 具体实施方式
为了解决网络侧如何为移动 RN选择 PGW的问题, 本发明实施例针对移动 RN提供 一种身份指示方法、针对 DeNB提供一种身份转发方法、针对 HSS提供一种签约数据发送 方法和针对 MME提供一种网关选择方法, 下面分别进行说明。
参见图 3 , 本发明实施例提供的身份指示方法, 包括以下步骤: 步驟 30: 移动 RN进入启动的第二阶段;
步骤 31 : 移动 RN与 DeNB建立 RRC连接; 并在 RRC连接的建立过程中, 将指示自 身 (即该移动 RN )为 RN或移动 RN的身份指示信息发送给 De B。
步骤 31中, 移动 RN可以通过 RRC建立完成消息, 将指示自身为 RN或移动 RN的 身份指示信息发送给 DeNB , 即该身份指示信息携带在 RRC建立完成消息中。
较佳的,在移动 RN与 DeNB建立 RRC连接之前,移动 RN可以从 OAM( Operation and Maintenance, 操作与维护系统)下载指向能够使 RN作为基站正常工作的 PGW的 APN; 或是获取本地预配置的指向能够使 RN作为基站正常工作的 PGW的 APN。 相应的, 在移 动 RN将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB的同时, 移动 RN将所 述 APN发送给 De B。具体的,移动 RN可以通过 RRC建立完成消息中的非接入层( NAS ) 消息, 将所述 APN发送给 DeNB , 即所述 APN携带在 RRC建立完成消息中的 NAS消息 中。
参见图 4, 本发明实施例提供的身份指示转发方法, 包括以下步骤:
步骤 40: DeNB在与移动 RN的 RRC连接建立过程中,接收移动 RN发送的指示自身 (即该移动 RN )为 RN或移动 RN的身份指示信息;
步骤 41 : DeNB将携带该身份指示信息的初始终端消息(即 Initial UE message ),发送 给 MME。
步驟 40中, DeNB可以通过 RRC建立完成消息, 接收移动 RN发送的所述身份指示 信息, 即该身份指示信息携带在 RC建立完成消息中。
较佳的, DeNB在接收移动 RN发送的所述身份指示信息的同时,还可以接收移动 RN 发送的携带 APN的 NAS消息; 相应的, 该 Initial UE message中携带该 NAS消息。
参见图 5 , 本发明实施例提供的签约数据发送方法, 包括以下步骤:
步骤 50: HSS接收 MME发送的位置更新请求;
步骤 51 : HSS向 MME返回移动 RN的签约数据, 该签约数据中包含移动 RN指示信 息和 /或指向能够使 RN作为基站正常工作的 PGW的 APN。
步骤 51中, 该签约数据还可以包含指向连接到 OAM的 PGW的 APN; 那么, 该指向 能够使 RN作为基站正常工作的 PGW的 APN带有特定标记, 该特定标记用于指示对应 APN用于选择使 RN作为基站正常工作的 PGW。 或者, 该指向连接到 OAM的 PGW的 APN带有特定标记, 该特定标记用于指示对应 APN用于选择连接到 OAM的 PGW。
如图 6所示, 本发明实施例提供的网关选择方法, 包括以下步驟:
步骤 60: MME接收 DeNB发送的携带 RN的身份指示信息的 Initial UE message; 步驟 61 : MME从 HSS获取该 RN的签约数据;
步骤 62: MME根据该 RN的身份指示信息和 /或签约数据,确定该 RN是否为移动 RN; 步骤 63: MME在确定该 RN是移动 RN时, 选择核心网的一个 PGW作为该 RN的 PGW。
步骤 62中, MME根据该 RN的身份指示信息确定该 RN是否为移动 RN, 具体实现 可以如下:
MME判断该 RN的身份指示信息是否指示该 RN为移动 RN, 若是, 则确定该 RN为 移动 RN,否则确定该 RN为固定 RN,在为固定 RN时按照现有技术为该固定 RN选择 PGW 和 SGW。
步骤 62中, MME根据该 RN的身份指示信息和该签约数据确定该 RN是否为移动 RN, 具体实现可以如下:
MME判断该 RN的身份指示信息是否指示该 RN为移动 RN、 以及该签约数据中是否 包含移动 RN指示信息, 若判断均为是, 则确定该 RN为移动 RN, 否则确定该 RN为固定 RN, 在为固定 RN时按照现有技术为该固定 RN选择 PGW和 SGW。
步 ¾ 62中, MME根据该签约数据确定该 RN是否为移动 RN, 具体实现可以如下:
MME判断该签约数据中是否包含移动 RN指示信息,若是,则确定该 RN为移动 RN, 否则确定该 RN为固定 RN。
步驟 63中, 选择核心网的一个 PGW作为该 RN的 PGW, 具体实现可以如下:
MME #居该签约数据中的 APN或本地预配置信息或该 RN上艮的 APN,选择核心网 的一个 PGW作为该 RN的 PGW。
具体的,上述根据该签约数据中的 APN,选择核心网的一个 PGW作为该 RN的 PGW, 具体实现可以如下:
MME在该签约数据中包含两个 APN时, 选择该两个 APN中带有特定标记的 APN, 根据选择的 APN在 DNS (域名系统)服务器查询 PGW的信息, 并从查询到的 PGW中选 择一个作为该 RN的 PGW; 该特定标记用于指示对应 APN用于选择使 RN作为基站正常 工作的 PGW; 或者,
MME在该签约数据中包含两个 APN时,选择该两个 APN中不带有特定标记的 APN, 根据选择的 APN在 DNS服务器查询 PGW的信息,并从查询到的 PGW中选择一个作为该 RN的 PGW; 该特定标记用于指示对应 APN用于选择连接到 OAM的 PGW; 或者,
或者, MME在该签约数据中包含一个 APN时,根据该 APN在 DNS服务器查询 PGW 的信息, 并从查询到的 PGW中选择一个作为所述 RN的 PGW。 上述根据本地预配置信息, 选择核心网的一个 PGW作为该 RN的 PGW, 具体实现可 以如下:
MME在本地预配置信息中包含指向能够使 RN作为基站正常工作的 PGW的 APN时, 根据该 APN在 DNS服务器查询 PGW的信息, 并从查询到的 PGW中选择一个作为该 RN 的 PGW; 或者,
MME在本地预配置信息中包含能够使 RN作为基站正常工作的 PGW的 IP地址时, 选择该 IP地址对应的 PGW作为该 RN的 PGW。
上述根据该 RN上 的 APN, 选择核心网的一个 PGW作为该 RN的 PGW, 具体实现 可以: ^下:
该 RN上 4艮的 APN携带在该 Initial UE message中的 NAS消息中时 , MME读取该 AS 消息中的 APN, 根据该 APN在 DNS服务器查询 PGW的信息, 并从查询到的 PGW中选 择一个作为该 RN的 PGW。
较佳的, 在确定该 RN是移动 RN后, MME还可以根据该 RN当前所处的地理位置 和各 SGW的负载情况, 为该 RN选择一个距离较近且负载较轻的 SGW。
下面结合具体实施例对本发明进行说明:
实施例一:
本实施例中, MME根据签约数据确定是固定 RN还是移动 RN, 根据签约数据选择 PGW, 如图 7A所示:
步骤 1 : 移动 RN在 RRC连接建立过程中向 DeNB发送自身为 RN或是移动 RN的身 份指示信息。
当移动 RN通知 DeNB 自身为移动 RN 时, 可以在 RRC 连接建立完成(即 RRC Connection Setup Complete ) 消息里携带自身为移动 RN的身份指示信息。
当移动 RN通知 DeNB自身为 RN时,可以重用现有的 RRC Connection Setup Complete 消息里携带的 RN身份指示信息。
步骤 2: DeNB在 RRC连接建立过程中接收到身份指示信息后,通过 Initial UE message 将该身份指示信息发送给 MME。
步驟 3: MME向 HSS发起位置更新过程, HSS将移动 RN的签约数据发给 MME, 该 签约数据中包含移动 RN指示信息; 该签约数据中还包含两个 APN: —个 APN用于选择 连接到 OAM的 PGW;另一个 APN用于选择可以使 RN作为基站正常工作的 PGW;或者, 该签约数据中包含一个 APN,该 APN对应的 PGW既可以作为能够使 RN作为基站正常工 作的 PGW, 又可以作为使 RN访问 OAM的 PGW。 在该签约数据中包含两个 APN时, 用于选择可以使 RN作为基站正常工作的 PGW的 APN带有特定标记, 该特定标记用于指示该 APN用于选择使 RN作为基站正常工作的 PGW; 或者, 用于选择连接到 OAM的 PGW的 APN带有特定标记, 该特定标记用于指示 对应 APN用于选择连接到 OAM的 PGW。
步骤 4: MME根据签约数据中包含的移动 RN指示信息得知当前 RN为移动 RN, 根 据签约数据中带有特定标记或不带有特定标记的 APN (即用于选择使 RN作为基站正常工 作的 PGW的 APN )为移动 RN选择 PGW。 MME可以利用现有技术中为 UE选择 SGW的 机制, 为移动 RN选择 SGW; MME通过会话建立过程将选择的 PGW的 IP地址等信息发 给 SGW; SGW与 PGW进行会话建立过程。
本步骤中如果 MME接收到了 DeNB上 4艮的 PGW的 IP地址, MME忽略该 IP地址。 步骤 5: MME接受移动 RN的附着请求, 向 DeNB发送 S 1上下文建立请求。
步骤 6: DeNB与 RN之间通过 RRC连接重配置过程建立空口承载。
实施例二:
本实施例中, MME根据移动 RN发送的身份指示信息确定是固定 RN还是移动 RN, 根据签约数据选择 PGW, 如图 7B所示:
步骤 1: 移动 RN在 RRC连接建立过程中向 DeNB发送自身为移动 RN的身份指示信 息。
可以在 RRC连接建立完成 (即 RRC Connection Setup Complete )消息里携带自身为移 动 RN的身份指示信息。
步骤 2: DeNB在 RRC连接建立过程中接收到身份指示信息后,通过 Initial UE message 将该身份指示信息发送给 MME。
步骤 3 : MME向 HSS发起位置更新过程, HSS将移动 RN的签约数据发给 MME, 该 签约数据中包含 RN指示信息; 该签约数据中还包含两个 APN: —个 APN用于选择连接 到 OAM的 PGW; 另一个 APN用于选择可以使 RN作为基站正常工作的 PGW; 或者, 该 签约数据中包含一个 APN,该 APN对应的 PGW既可以作为能够使 RN作为基站正常工作 的 PGW, 又可以作为使 R 访问 OAM的 PGW。
在该签约数据中包含两个 APN时, 用于选择可以使 RN作为基站正常工作的 PGW的 APN带有特定标记, 该特定标记用于指示该 APN用于选择使 RN作为基站正常工作的 PGW; 或者, 用于选择连接到 OAM的 PGW的 APN带有特定标记, 该特定标记用于指示 对应 APN用于选择连接到 OAM的 PGW。
步骤 4: MME根据签约数据中包含的 RN指示信息得知当前设备是 R 且根据 DeNB 发来的身份指示信息确定该 RN为移动 RN后, 根据签约数据中带有特定标记或不带有特 定标记的 APN(即用于选择使 RN作为基站正常工作的 PGW的 APN )为移动 RN选择 PGW。 MME可以利用现有技术中为 UE选择 SGW的机制, 为移动 RN选择 SGW; MME通过会 话建立过程将选择的 PGW的 IP地址等信息发给 SGW; SGW与 PGW进行会话建立过程。
步骤 5: MME接受移动 RN的附着请求, 向 De B发送 S 1上下文建立请求。
步骤 6: DeNB与 RN之间通过 RRC连接重配置过程建立空口承载。
实施例三:
本实施例中, MME根据移动 RN发送的身份指示信息确定是固定 RN还是移动 RN, 根据本地预配置信息选择 PGW, 如图 7C所示:
步骤 1 : 移动 RN在 RRC连接建立过程中向 DeNB发送自身为 RN或是移动 RN的身 份指示信息。
当移动 RN通知 DeNB 自身为移动 RN 时, 可以在 RRC 连接建立完成(即 RRC Connection Setup Complete ) 消息里携带自身为移动 RN的身份指示信息。
步骤 2: DeNB在 RRC连接建立过程中接收到身份指示信息后,通过 Initial UE message 将该身份指示信息发送给 MME。
步骤 3 : MME向 HSS发起位置更新过程, HSS将移动 RN的签约数据发给 MME, 该 签约数据中包含 RN指示信息; 该签约数据中包含一个用于选择连接到 OAM的 PGW的 步骤 4: MME根据签约数据中包含的 RN指示信息得知当前设备是 RN且根据 DeNB 发来的身份指示信息确定该 RN为移动 RN后,根据本地预配置信息为移动 RN选择 PGW。 MME可以利用现有技术中为 UE选择 SGW的机制, 为移动 RN选择 SGW; MME通过会 话建立过程将选择的 PGW的 IP地址等信息发给 SGW; SGW与 PGW进行会话建立过程。
本地预配置信息中包含 PGW的 APN信息或是可以作为移动 RN的 PGW的 IP地址信 息等。
步骤 5:MME接受移动 RN的附着请求, 向 DeNB发送 S1上下文建立请求。
步骤 6: DeNB与 RN之间通过 RRC连接重配置过程建立空口承载。
实施例四:
本实施例中, MME根据签约数据确定是固定 RN还是移动 RN, 根据本地预配置信息 选择 PGW, 如图 7D所示:
步骤 1 : 移动 RN在 RRC连接建立过程中向 DeNB发送自身为 RN或是移动 RN的身 份指示信息。 当移动 RN通知 DeNB 自身为移动 RN 时, 可以在 RRC 连接建立完成(即 RRC Connection Setup Complete ) 消息里携带自身为移动 RN的身份指示信息。
当移动 RN通知 DeNB自身为 RN时,可以重用现有的 RRC Connection Setup Complete 消息里携带的 RN身份指示信息。
步骤 2: DeNB在 RRC连接建立过程中接收到身份指示信息后,通过 Initial UE message 将该身份指示信息发送给 MME。
步骤 3 : MME向 HSS发起位置更新过程, HSS将移动 RN的签约数据发给 MME, 该 签约数据中包含移动 RN指示信息; 该签约数据中还包含一个用于选择连接到 OAM 的 PGW的 APN。
步骤 4: MME根据签约数据中包含的移动 RN指示信息得知当前 RN为移动 RN, 根 据本地预配置信息为移动 RN选择 PGW。 MME可以利用现有技术中为 UE选择 SGW的 机制, 为移动 RN选择 SGW; MME通过会话建立过程将选择的 PGW的 IP地址等信息发 给 SGW; SGW与 PGW进行会话建立过程。
本地预配置信息中包含 PGW的 APN信息或是可以作为移动 RN的 PGW的 IP地址信 息等。
步骤 5: MME接受移动 RN的附着请求, 向 DeNB发送 S 1上下文建立请求。
步骤 6: DeNB与 RN之间通过 RRC连接重配置过程建立空口承载。
实施例五:
本实施例中, MME根据移动 RN发送的身份指示信息确定是固定 RN还是移动 RN, 根据 NAS消息中的 APN选择 PGW , 如图 7E所示:
步骤 0: 移动 RN从 OAM下载指向能够使 RN作为基站正常工作的 PGW的 APN信 息, 或是获取本地预配置的指向能够使 RN作为基站正常工作的 PGW的 APN信息。
移动 RN可以在启动的第一阶段从 OAM下载所述 APN信息。
步骤 1: 移动 RN在 RRC连接建立过程中向 DeNB发送自身为移动 RN的身份指示信 息以及所述 APN信息。
可以在 RRC连接建立完成 (即 RRC Connection Setup Complete )消息里携带自身为移 动 RN的身份指示信息, 在 RRC Connection Setup Complete消息的 NAS消息中携带所述 APN信息。
步骤 2: DeNB在 RRC连接建立过程中接收到身份指示信息和 APN信息后,通过 Initial UE message将该身份指示信息和携带所述 APN信息的 NAS消息发送给 MME。
步骤 3 : MME向 HSS发起位置更新过程, HSS将移动 RN的签约数据发给 MME, 该 签约数据中包含 RN指示信息;该签约数据中还包含一个用于选择连接到 OAM的 PGW的 APN。
步骤 4: MME根据签约数据中包含的 RN指示信息得知当前设备是 R 且根据 DeNB 发来的身份指示信息确定该 RN为移动 RN后, 才艮据 NAS消息中携带的 APN为移动 RN 选择 PGW。 MME可以利用现有技术中为 UE选择 SGW的机制, 为移动 RN选择 SGW; MME通过会话建立过程将选择的 PGW的 IP地址等信息发给 SGW; SGW与 PGW进行会 话建立过程。
步骤 5:MME接受移动 RN的附着请求, 向 DeNB发送 S1上下文建立请求。
步骤 6: DeNB与 RN之间通过 RRC连接重配置过程建立空口承载。
实施例六:
本实施例中, MME根据签约数据确定是固定 RN还是移动 RN, 根据 NAS消息中的 APN选择 PGW, 如图 7F所示:
步骤 0: 移动 RN从 OAM下载指向能够使 RN作为基站正常工作的 PGW的 APN信 息, 或是获取本地预配置的指向能够使 RN作为基站正常工作的 PGW的 APN信息。
移动 RN可以在启动的第一阶段从 OAM下载所述 APN信息。
步骤 1 : 移动 RN在 RRC连接建立过程中向 DeNB发送自身为 RN或是移动 RN的身 份指示信息、 以及所述 APN信息。
当移动 RN通知 DeNB 自身为移动 RN 时, 可以在 RRC 连接建立完成(即 RRC Connection Setup Complete )消息里携带自身为移动 RN的身份指示信息,在 RRC Connection Setup Complete消息的 NAS消息中携带所述 APN信息。
当移动 RN通知 DeNB自身为 RN时,可以重用现有的 RRC Connection Setup Complete 消息里携带的 RN身份指示信息,在 RRC Connection Setup Complete消息的 NAS消息中携 带所述 APN信息。
步骤 2: DeNB在 RRC连接建立过程中接收到身份指示信息和携带所述 APN信息的 NAS消息后, 通过 Initial UE message将该身份指示信息和所述 NAS消息发送给 MME。
步骤 3 : MME向 HSS发起位置更新过程, HSS将移动 RN的签约数据发给 MME, 该 签约数据中包含移动 RN指示信息; 该签约数据中还包含一个用于选择连接到 OAM 的 PGW的 APN。
步骤 4: MME根据签约数据中包含的移动 RN指示信息得知当前 RN为移动 RN, 根 据 NAS消息中携带的 APN为移动 RN选择 PGW。 MME可以利用现有技术中为 UE选择 SGW的机制, 为移动 RN选择 SGW; MME通过会话建立过程将选择的 PGW的 IP地址 等信息发给 SGW; SGW与 PGW进行会话建立过程。
步骤 5: MME接受移动 RN的附着请求, 向 De B发送 S 1上下文建立请求。
步骤 6: DeNB与 RN之间通过 RRC连接重配置过程建立空口承载。
参见图 8 , 本发明实施例还提供一种 MME, 该 MME包括:
接收单元 80, 用于接收 DeNB发送的携带 RN的身份指示信息的 Initial UE message; 获取单元 81 , 用于从签约用户归属服务器 HSS获取所述 RN的签约数据; 确定单元 82 , 用于根据所述 RN的身份指示信息和 /或所述签约数据 ,确定所述 RN是 否为移动 RN;
选择单元 83 , 用于在确定所述 RN是移动 RN时, 选择核心网的一个 PGW作为所述 RN的 PGW。
进一步的, 所述确定单元 82用于:
判断所述 RN的身份指示信息是否指示所述 RN为移动 RN, 若是, 则确定所述 RN为 移动 RN, 否则确定所述 RN为固定 RN。
进一步的, 所述确定单元 82用于:
判断所述 RN的身份指示信息是否指示所述 RN为移动 RN、以及所述签约数据中是否 包含移动 RN指示信息, 若判断均为是, 则确定所述 RN为移动 RN, 否则确定所述 RN为 固定 RN。
进一步的, 所述确定单元 82用于:
判断所述签约数据中是否包含移动 RN指示信息, 若是, 则确定所述 RN为移动 RN, 否则确定所述 RN为固定 RN。
进一步的, 所述选择单元 83用于:
根据所述签约数据中的接入点名 APN或本地预配置信息或所述 RN上报的 APN, 选 择核心网的一个 PGW作为所述 RN的 PGW。
进一步的, 所述选择单元 83用于:
在所述签约数据中包含两个 APN时, 选择该两个 APN中带有特定标记的 APN ,根据 选择的 APN在 DNS服务器查询 PGW的信息, 并从查询到的 PGW中选择一个作为所述 RN的 PGW;所述特定标记用于指示对应 APN用于选择使 RN作为基站正常工作的 PGW; 或者,
MME在所述签约数据中包含两个 APN 时, 选择该两个 APN 中不带有特定标记的 APN,根据选择的 APN在 DNS服务器查询 PGW的信息,并从查询到的 PGW中选择一个 作为所述 RN的 PGW; 所述特定标记用于指示对应 APN用于选择连接到 OAM的 PGW; 或者,
在所述签约数据中包含一个 APN时, 根据该 APN在 DNS服务器查询 PGW的信息, 并从查询到的 PGW中选择一个作为所述 R 的 PGW。
进一步的, 所述选择单元 83用于:
在本地预配置信息中包含 PGW的 APN时, 根据该 APN在 DNS服务器查询 PGW的 信息, 并从查询到的 PGW中选择一个作为所述 RN的 PGW; 或者,
在本地预配置信息中包含 PGW的 IP地址时, 选择该 IP地址对应的 PGW作为所述 RN的 PGW。
进一步的, 所述选择单元 83用于:
在所述 RN上报的 APN携带在所述 Initial UE message中的非接入层 NAS消息中时, 读取所述 NAS消息中的 APN,根据该 APN在 DNS服务器查询 PGW的信息,并从查询到 的 PGW中选择一个作为所述 RN的 PGW。
进一步的, 该 MME还包括:
选取单元 84,用于根据所述 RN当前所处的地理位置和各服务网关 SGW的负载情况, 为所述 RN选择一个 SGW。
参见图 9, 本发明实施例还提供一种移动 RN, 该移动 RN包括:
建立单元 90, 用于在进入启动的第二阶段后, 与 DeNB建立 RRC连接;
指示单元 91, 用于在 RRC连接的建立过程中, 将指示自身为 RN或移动 RN的身份 指示信息发送给 DeNB。
进一步的, 所述指示单元 91用于:
通过 RC建立完成消息,将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB。 进一步的, 该移动 RN还包括:
获取单元 92, 用于在与 DeNB建立 RRC连接之前, 从 OAM下载指向能够使 RN作 为基站正常工作的 PGW的接入点名 APN; 或者, 获取本地预配置的指向能够使 RN作为 基站正常工作的 PGW的 APN;
所述指示单元 91还用于:在将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB 的同时, 将所述 APN发送给 DeNB。
进一步的, 所述指示单元 91用于:
通过 RC建立完成消息中的非接入层 NAS消息, 将所述 APN发送给 DeNB。
参见图 10, 本发明实施例还通过一种 DeNB , 该 DeNB包括:
接收单元 100, 用于在与移动 RN的 RRC连接建立过程中, 接收移动 R 发送的指示 自身为 RN或移动 RN的身份指示信息;
发送单元 101,用于将携带所述身份指示信息的初始终端消息(即 Initial UE message ), 发送给移动性管理实体 MME。
进一步的, 所述接收单元 100用于:
通过 RRC建立完成消息, 接收移动 RN发送的所述身份指示信息。
进一步的, 所述接收单元 100还用于: 在接收移动 RN发送的所述身份指
示信息的同时, 接收移动 RN发送的携带 APN信息的 NAS消息;
所述发送单元 101发送的 Initial UE message中还携带所述携带 AP 信息的 AS消息。 参见图 11, 本发明实施例还提供一种 HSS , 该 HSS包括:
接收单元 110, 用于接收 MME发送的位置更新请求;
响应单元 111,用于向 MME返回移动 RN的签约数据,该签约数据中包含移动 RN指 示信息和 /或指向能够使 RN作为基站正常工作的 PGW的接入点名 APN。
进一步的,所述响应单元 111返回的签约数据还包含指向连接到 OAM的 PGW的 APN; 所述响应单元 111返回的指向能够使 RN作为基站正常工作的 PGW的 APN带有特定 标记,所述特定标记用于指示对应 APN用于选择使 RN作为基站正常工作的 PGW;或者, 所述指向连接到操作与维护系统 OAM的 PGW的 APN带有特定标记, 该特定标记用于指 示对应 APN用于选择连接到 OAM的 PGW。
综上, 本发明有益效果包括:
本发明实施例提供的方案中, 移动 RN在进入启动的第二阶段后, 与 De B建立 RRC 连接, 并在 RRC连接的建立过程中,将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB; DeNB接收移动 RN发送的指示自身为 RN或移动 RN的身份指示信息后, 将携带 该身份指示信息的 Initial UE message发送给 MME; MME接收 DeNB发送的 Initial UE message后, 从 HSS获取 RN的签约数据, 根据身份指示信息和 /或签约数据, 确定该 RN 是否为移动 RN, 在确定为是时, 选择核心网的一个 PGW作为所述 RN的 PGW。 可见, 本方法实现了为移动 RN选择 PGW的方案,进而解决了如何为移动 RN选择 PGW的问题。
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, 本发明可釆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、 CD-ROM、 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。
尽管已描述了本发明的优选实施例, 但本领域内的技术人员一旦得知了基本创造性概 念, 则可对这些实施例作出另外的变更和修改。 所以, 所附权利要求意欲解释为包括优选 实施例以及落入本发明范围的所有变更和修改。
显然, 本领域的技术人员可以对本发明实施例进行各种改动和变型而不脱离本发明实 施例的精神和范围。 这样, 倘若本发明实施例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

权 利 要 求
1、 一种网关选择方法, 其特征在于, 该方法包括:
移动性管理实体 MME接收施主基站 DeNB发送的携带中继节点 RN的身份指示信息 的初始终端消息 Initial UE message,从签约用户归属服务器 HSS获取所述 RN的签约数据; MME根据所述 RN的身份指示信息和 /或所述签约数据,确定所述 RN是否为移动 RN, 在确定为是时, 选择核心网的一个分组数据网关 PGW作为所述 RN的 PGW。
2、 如权利要求 1所述的方法, 其特征在于, 所述 MME根据所述 RN的身份指示信息 确定所述 RN是否为移动 RN, 具体包括:
MME判断所述 RN的身份指示信息是否指示所述 RN为移动 RN, 若是, 则确定所述 RN为移动 RN。
3、 如权利要求 1所述的方法, 其特征在于, 所述 MME根据所述 RN的身份指示信息 和所述签约数据确定所述 RN是否为移动 RN, 具体包括:
MME判断所述 RN的身份指示信息是否指示所述 RN为移动 RN、 以及所述签约数据 中是否包含移动 RN指示信息, 若判断均为是, 则确定所述 RN为移动 RN。
4、 如权利要求 1所述的方法, 其特征在于, 所述 MME根据所述签约数据确定所述
R 是否为移动 RN, 具体包括:
MME判断所述签约数据中是否包含移动 RN指示信息,若是,则确定所述 R 为移动
5、 如权利要求 1-4中任一所述的方法, 其特征在于, 所述选择核心网的一个 PGW作 为所述 RN的 PGW, 具体包括:
MME根据所述签约数据中的接入点名 APN或本地预配置信息或所述 RN上报的 APN, 选择核心网的一个 PGW作为所述 RN的 PGW。
6、 如权利要求 5所述的方法, 其特征在于, 所述根据所述签约数据中的 APN, 选择 核心网的一个 PGW作为所述 RN的 PGW, 具体包括:
MME在所述签约数据中包含两个 APN时,选择该两个 APN中带有特定标记的 APN, 根据选择的 APN在域名系统 DNS服务器查询 PGW的信息,并从查询到的 PGW中选择一 个作为所述 RN的 PGW; 所述特定标记用于指示对应 APN用于选择使 RN作为基站正常 工作的 PGW; 或者,
MME在所述签约数据中包含两个 APN 时, 选择该两个 APN 中不带有特定标记的 APN,根据选择的 APN在 DNS服务器查询 PGW的信息,并从查询到的 PGW中选择一个 作为所述 RN的 PGW; 所述特定标记用于指示对应 APN用于选择连接到 OAM的 PGW; 或者,
MME在所述签约数据中包含一个 APN时, 根据该 APN在 DNS服务器查询 PGW的 信息, 并从查询到的 PGW中选择一个作为所述 RN的 PGW。
7、 如权利要求 5 所述的方法, 其特征在于, 所述根据本地预配置信息, 选择核心网 的一个 PGW作为所述 RN的 PGW, 具体包括:
MME在本地预配置信息中包含 PGW的 APN时,根据该 APN在 DNS服务器查询 PGW 的信息, 并从查询到的 PGW中选择一个作为所述 RN的 PGW; 或者,
MME在本地预配置信息中包含 PGW的 IP地址时, 选择该 IP地址对应的 PGW作为 所述 RN的 PGW。
8、 一种身份指示方法, 其特征在于, 该方法包括:
移动中继节点 RN在进入启动的第二阶段后, 与施主基站 De B 建立无线资源控制 RRC连接过程中, 将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB。
9、如权利要求 8所述的方法, 其特征在于,在移动 RN与 DeNB建立 RRC连接之前, 进一步包括: 移动 RN从操作与维护系统 OAM下载指向能够使 RN作为基站正常工作的
PGW的接入点名 APN; 或者, 移动 RN获取本地预配置的指向能够使 RN作为基站正常 工作的 PGW的 APN;
在移动 RN将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB的同时, 进一 步包括: 移动 RN将所述 APN放在非接入层 NAS消息中发送给 DeNB。
10、 一种身份指示转发方法, 其特征在于, 该方法包括:
施主基站 DeNB在与移动中继节点 RN的无线资源控制 RRC连接建立过程中,接收移 动 RN发送的指示自身为 RN或移动 RN的身份指示信息;
DeNB将携带所述身份指示信息的初始终端消息 Initial UE message, 发送给移动性管 理实体 MME。
11、 如权利要求 10所述的方法, 其特征在于, DeNB在接收移动 RN发送的所述身份 指示信息的同时, 进一步包括: 接收移动 RN发送的携带 APN的 NAS消息;
所述 Initial UE message中还携带所述携带 APN的 NAS消息。
12、 一种签约数据发送方法, 其特征在于, 该方法包括:
归属用户签约服务器 HSS接收移动性管理实体 MME发送的位置更新请求后,向 MME 返回移动中继节点 RN的签约数据, 该签约数据中包含移动 RN指示信息和 /或指向能够使 RN作为基站正常工作的分组数据网关 PGW的接入点名 APN。
13、 如权利要求 12所述的方法, 其特征在于, 该签约数据还包含指向连接到操作与 维护系统 OAM的 PGW的 APN;
所述指向能够使 RN作为基站正常工作的 PGW的 APN带有特定标记, 所述特定标记 用于指示对应 APN用于选择使 RN作为基站正常工作的 PGW; 或者, 所述指向连接到操 作与维护系统 OAM的 PGW的 APN带有特定标记, 该特定标记用于指示对应 APN用于 选择连接到 OAM的 PGW。
14、 一种移动性管理实体 MME, 其特征在于, 该 MME包括:
接收单元, 用于接收施主基站 De B发送的携带中继节点 RN的身份指示信息的初始 终端消息 Initial UE message;
获取单元, 用于从签约用户归属服务器 HSS获取所述 RN的签约数据;
确定单元, 用于根据所述 RN的身份指示信息和 /或所述签约数据, 确定所述 RN是否 为移动 RN;
选择单元, 用于在确定所述 RN是移动 RN时, 选择核心网的一个分组数据网关 PGW 作为所述 RN的 PGW。
15、 如权利要求 14所述的 MME, 其特征在于, 所述确定单元用于:
判断所述 RN的身份指示信息是否指示所述 RN为移动 RN, 若是, 则确定所述 RN为 移动 RN。
16、 如权利要求 14所述的 MME, 其特征在于, 所述确定单元用于:
判断所述 RN的身份指示信息是否指示所述 RN为移动 RN、以及所述签约数据中是否 包含移动 RN指示信息, 若判断均为是, 则确定所述 RN为移动 RN。
17、 如权利要求 14所述的 MME, 其特征在于, 所述确定单元用于:
判断所述签约数据中是否包含移动 RN指示信息, 若是, 则确定所述 RN为移动 RN。
18、 如权利要求 14 - 17中任一所述的 MME, 其特征在于, 所述选择单元用于: 根据所述签约数据中的接入点名 APN或本地预配置信息或所述 RN上报的 APN, 选 择核心网的一个 PGW作为所述 RN的 PGW。
19、 如权利要求 18所述的 MME, 其特征在于, 所述选择单元用于:
在所述签约数据中包含两个 APN时, 选择该两个 APN中带有特定标记的 APN,根据 选择的 APN在域名系统 DNS服务器查询 PGW的信息,并从查询到的 PGW中选择一个作 为所述 RN的 PGW; 所述特定标记用于指示对应 APN用于选择使 RN作为基站正常工作 的 PGW; 或者,
MME在所述签约数据中包含两个 APN 时, 选择该两个 APN 中不带有特定标记的 APN,根据选择的 APN在 DNS服务器查询 PGW的信息,并从查询到的 PGW中选择一个 作为所述 RN的 PGW; 所述特定标记用于指示对应 APN用于选择连接到 OAM的 PGW; 或者,
在所述签约数据中包含一个 APN时 , 根据该 APN在 DNS服务器查询 PGW的信息, 并从查询到的 PGW中选择一个作为所述 RN的 PGW。
20、 如权利要求 18所述的 MME, 其特征在于, 所述选择单元用于:
在本地预配置信息中包含 PGW的 APN时, 根据该 APN在 DNS服务器查询 PGW的 信息, 并从查询到的 PGW中选择一个作为所述 RN的 PGW; 或者,
在本地预配置信息中包含 PGW的 IP地址时, 选择该 IP地址对应的 PGW作为所述 RN的 PGW。
21、 一种移动中继节点 RN, 其特征在于, 该移动 RN包括:
建立单元, 用于在进入启动的第二阶段后, 与施主基站 DeNB建立无线资源控制 RRC 连接;
指示单元, 用于在 RRC连接的建立过程中, 将指示自身为 RN或移动 RN的身份指示 信息发送给 DeNB。
22、 如权利要求 21所述的移动 RN, 其特征在于, 所述指示单元用于:
通过 RRC建立完成消息,将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB。
23、 如权利要求 21或 22所述的移动 RN, 其特征在于, 该移动 RN还包括: 获取单元,用于在与 DeNB建立 RRC连接之前,从操作与维护系统 OAM下载指向能 够使 RN作为基站正常工作的 PGW的接入点名 APN; 或者, 获取本地预配置的指向能够 使 RN作为基站正常工作的 PGW的 APN;
所述指示单元还用于: 在将指示自身为 RN或移动 RN的身份指示信息发送给 DeNB 的同时, 将所述 APN放在非接入层 NAS消息中发送给 DeNB。
24、 一种施主基站 DeNB , 其特征在于, 该 DeNB包括:
接收单元,用于在与移动中继节点 RN的无线资源控制 RRC连接建立过程中,接收移 动 RN发送的指示自身为 RN或移动 RN的身份指示信息;
发送单元, 用于将携带所述身份指示信息的初始终端消息 Initial UE message, 发送给 移动性管理实体 MME。
25、 如权利要求 24所述的 DeNB , 其特征在于, 所述接收单元用于:
通过 RC建立完成消息, 接收移动 RN发送的所述身份指示信息。
26、 如权利要 24或 25所述的 DeNB , 其特征在于, 所述接收单元还用于: 在接收移 动 RN发送的所述身份指示信息的同时, 接收移动 RN发送的携带 APN的 NAS消息; 所述发送单元发送的 Initial UE message中还携带所述携带 AP 的 NAS消息。
27、 一种归属用户签约服务器 HSS , 其特征在于, 该 HSS包括:
接收单元, 用于接收移动性管理实体 MME发送的位置更新请求;
响应单元, 用于向 MME返回移动中继节点 RN的签约数据, 该签约数据中包含移动 RN指示信息和 /或指向能够使 RN作为基站正常工作的分组数据网关 PGW 的接入点名
28、 如权利要求 27所述的 HSS, 其特征在于, 所述响应单元返回的签约数据还包含 指向连接到操作与维护系统 OAM的 PGW的 APN;
所述响应单元返回的指向能够使 RN作为基站正常工作的 PGW的 APN带有特定标记, 所述特定标记用于指示对应 APN用于选择使 RN作为基站正常工作的 PGW; 或者, 所述 指向连接到操作与维护系统 OAM的 PGW的 APN带有特定标记, 该特定标记用于指示对 应 APN用于选择连接到 OAM的 PGW。
PCT/CN2012/081766 2011-12-28 2012-09-21 网关选择方法和设备 WO2013097499A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP12863312.0A EP2800421B1 (en) 2011-12-28 2012-09-21 Gateway selection method and device
US14/369,679 US9736768B2 (en) 2011-12-28 2012-09-21 Gateway selection method and device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201110448323.3A CN103188650B (zh) 2011-12-28 2011-12-28 网关选择方法和设备
CN201110448323.3 2011-12-28

Publications (1)

Publication Number Publication Date
WO2013097499A1 true WO2013097499A1 (zh) 2013-07-04

Family

ID=48679538

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/081766 WO2013097499A1 (zh) 2011-12-28 2012-09-21 网关选择方法和设备

Country Status (4)

Country Link
US (1) US9736768B2 (zh)
EP (1) EP2800421B1 (zh)
CN (1) CN103188650B (zh)
WO (1) WO2013097499A1 (zh)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9699768B2 (en) * 2012-12-26 2017-07-04 Ict Research Llc Mobility extensions to industrial-strength wireless sensor networks
CN105027507B (zh) * 2013-12-04 2018-11-20 华为技术有限公司 一种选择后端网络设备的方法及设备
CN105338514B (zh) * 2014-08-15 2018-12-14 中国电信股份有限公司 在pgw上配置vpdn属性信息的方法和系统
CN104602256B (zh) * 2015-01-21 2018-06-08 大唐移动通信设备有限公司 一种报文传输的方法和系统
US20180184305A1 (en) * 2015-06-30 2018-06-28 Nokia Solutions And Networks Oy Fast and Flexible Deployment of User Equipment-Based Relay
CN106375987B (zh) * 2015-07-22 2021-08-20 中兴通讯股份有限公司 一种网络切片的选择方法及系统
EP3200408B1 (en) 2016-01-29 2019-08-07 Deutsche Telekom AG Enhanced load balancing in a mobile communication network
CN107548050B (zh) * 2016-06-24 2020-07-03 大唐移动通信设备有限公司 一种选择网元设备的方法和装置
WO2019183885A1 (zh) 2018-03-29 2019-10-03 Oppo广东移动通信有限公司 网元间切换的方法、用户设备、网元及计算机存储介质
CN112468315A (zh) * 2020-11-03 2021-03-09 上海中觅通信技术有限公司 一种apn配置方法和设备

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101257705A (zh) * 2007-03-02 2008-09-03 华为技术有限公司 移动台入网方法、无线通信系统、移动中继站及基站
CN101262269A (zh) * 2007-03-05 2008-09-10 华为技术有限公司 一种群节点切换方法、通信系统及移动中继站
CN102088757A (zh) * 2009-12-08 2011-06-08 华为技术有限公司 一种网关选择的方法、装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101651588A (zh) * 2008-08-12 2010-02-17 华为技术有限公司 选择网关方法、连接建立方法及相关装置和通信系统
US8363664B2 (en) * 2008-08-18 2013-01-29 Cisco Technology, Inc. Combined gateway for network communications
WO2010102127A1 (en) * 2009-03-04 2010-09-10 Cisco Technology, Inc. Detecting overloads in network devices
US9210579B2 (en) * 2009-10-14 2015-12-08 Huawei Technologies Co., Ltd. System and method for communicating in a wireless communications system
CN102083178B (zh) * 2010-09-29 2014-04-02 电信科学技术研究院 启动阶段指示发送及网关节点选择方法、系统和设备
US8811347B2 (en) * 2011-06-16 2014-08-19 Lg Electronics Inc. Method and apparatus for selecting MME in wireless communication system including mobile relay node
CN103733683A (zh) * 2011-08-11 2014-04-16 交互数字专利控股公司 移动中继切换
WO2013075755A1 (en) * 2011-11-25 2013-05-30 Nokia Siemens Networks Oy Method for handing over a mobile relay node

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101257705A (zh) * 2007-03-02 2008-09-03 华为技术有限公司 移动台入网方法、无线通信系统、移动中继站及基站
CN101262269A (zh) * 2007-03-05 2008-09-10 华为技术有限公司 一种群节点切换方法、通信系统及移动中继站
CN102088757A (zh) * 2009-12-08 2011-06-08 华为技术有限公司 一种网关选择的方法、装置

Also Published As

Publication number Publication date
US9736768B2 (en) 2017-08-15
EP2800421A1 (en) 2014-11-05
CN103188650B (zh) 2016-03-23
CN103188650A (zh) 2013-07-03
EP2800421B1 (en) 2017-06-21
EP2800421A4 (en) 2015-03-18
US20150043454A1 (en) 2015-02-12

Similar Documents

Publication Publication Date Title
KR102535139B1 (ko) 무선 통신 시스템에서 통신을 수행하는 방법 및 장치
WO2013097499A1 (zh) 网关选择方法和设备
US9131473B2 (en) Method, device, and communication system for establishing connection with network management system
US9137674B2 (en) Method, system, and device for transmitting startup phase indicator and selecting gateway node
CN109417702B (zh) 包括片的通信网络中的接入控制
JP2019520748A (ja) 無線通信方法及びデバイス
JP2011172288A (ja) マルチモード移動端末の制御情報送受信方法
KR20120061914A (ko) 핸드오버 방법 및 핸드오버 장치
WO2012013026A1 (zh) 一种中继节点接入网络的方法和系统
JP2019528018A (ja) 基地局、通信装置及び方法
US11963240B2 (en) User device, control device, and communication control method
JP6601495B2 (ja) 無線端末装置、d2dコントローラ、及び方法
CN106470465B (zh) Wifi语音业务发起方法、lte通信设备、终端及通信系统
WO2014047949A1 (zh) 一种多用户协作通信的方法、设备及系统
WO2015105183A1 (ja) 通信制御方法、位置管理装置、基地局装置、端末装置および通信システム
WO2018006985A1 (en) System, devices, and methods for interworking between a legacy 3gpp mobile telecommunications network (4g) and a next generation network (5g)
WO2012019554A1 (zh) 获取控制节点信息的方法、设备及系统
WO2013060164A1 (zh) 一种信息指示及网关选择方法、系统和设备
WO2018148891A1 (zh) 数据传输方法、基站、本地疏导控制器、网关和系统
WO2013004121A1 (zh) 本地网关信息处理方法及装置
EP2824952B1 (en) Method, apparatus and system for transmitting gateway address
CN102448186B (zh) 一种中继节点启动的方法及其实现系统
JP2013506316A (ja) 通信システム
WO2023051430A1 (zh) 通信的方法和装置
WO2012146131A1 (zh) 一种网关的选择方法及系统

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12863312

Country of ref document: EP

Kind code of ref document: A1

REEP Request for entry into the european phase

Ref document number: 2012863312

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 2012863312

Country of ref document: EP

WWE Wipo information: entry into national phase

Ref document number: 14369679

Country of ref document: US

NENP Non-entry into the national phase

Ref country code: DE