WO2012024990A1 - 一种网元信息获取方法和系统 - Google Patents

一种网元信息获取方法和系统 Download PDF

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Publication number
WO2012024990A1
WO2012024990A1 PCT/CN2011/077284 CN2011077284W WO2012024990A1 WO 2012024990 A1 WO2012024990 A1 WO 2012024990A1 CN 2011077284 W CN2011077284 W CN 2011077284W WO 2012024990 A1 WO2012024990 A1 WO 2012024990A1
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WIPO (PCT)
Prior art keywords
gateway
local
base station
home base
network element
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Application number
PCT/CN2011/077284
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English (en)
French (fr)
Inventor
周娜
王静
梁爽
Original Assignee
中兴通讯股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication of WO2012024990A1 publication Critical patent/WO2012024990A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04WWIRELESS COMMUNICATION NETWORKS
    • H04W8/00Network data management
    • H04W8/26Network addressing or numbering for mobility support

Definitions

  • the present invention relates to the field of communications, and in particular, to a method and system for acquiring network element information. Background technique
  • EPS Evolved Packet System
  • 3GPP 3rd Generation Partnership Project
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • MME Mobility Management Entity
  • S-GW Serving Gateway
  • P-GW Packet Data Network Gateway
  • HSS Home Subscriber Server
  • AAA Authentication, Authorization and Accounting
  • PCRF Policy and Charging Rules Function
  • the mobility management entity is responsible for control planes such as mobility management, non-access stratum signaling processing, and user mobility management context management;
  • -GW is an access gateway device connected to E-UTRAN, which forwards data between E-UTRAN and P-GW, and is responsible for buffering paging waiting data;
  • P-GW is EPS and packet data network (Packet Data) Network, PDN) border gateway, responsible for PDN access and forwarding data between EPS and PDN;
  • S-GW and P-GW are both core network gateways.
  • the home base station is a small, low-power base station deployed in indoor places such as homes and offices. Its main function is to provide users with higher service rates and lower the cost of using high-speed services, while making up for existing distributed cellular Insufficient coverage of wireless communication systems. Home base station The advantages are affordable, convenient, low power output, plug and play and more.
  • the home base station is a wireless side network element. As shown in FIG. 2, the home base station can access the core network through the home base station gateway, or can directly connect to the core network (as shown in FIG. 1).
  • the main functions of the home base station gateway are: verifying the security of the home base station, and processing Registration of the home base station, operation and maintenance management of the home base station, configuration and control of the home base station according to the operator's requirements, and exchange of data of the core network and the home base station.
  • the mobile communication system (including the home base station system) can also support the IP offload function, and the terminal-to-home can be realized under the condition that the wireless side network element has the IP offload capability and the user subscribes to allow the IP offload. Local access to other IP devices or the Internet on the network.
  • a local gateway can be added to provide strong support for IP offloading technology.
  • the local gateway acts as a gateway to the external network (such as the Internet) to provide address allocation and accounting. , packet filtering, policy control, data offloading, NAS/S1-AP/RANAP (Radios Access Network Application Part) / GTP (General Tunneling Protocol) / PMIP (Proxy Mobile IP , Proxy Mobile IP Protocol) /MIP (Mobile IP, Mobile IP Protocol) Message parsing, NAT (Network Address Translation), IP offload policy routing and execution.
  • the local gateway can be combined with the wireless side network element.
  • the local gateway can be set up not only with the home base station (as shown in FIG. 2) or separately, but also with the home base station gateway (as shown in FIG. 3) or separately.
  • the local gateway may be a local service gateway (Local SGW, L-SGW) and a local packet data gateway (Local PGW, L-PGW), or may be a separate L-PGW, or may be a data offload function entity.
  • the home base station gateway can be combined with the home base station.
  • the IP offloading can be implemented by adding (as shown in FIG. 4) or not adding (as shown in FIG. 5a and FIG. 5b) NAT address conversion function on the local gateway, not limited to one through one. Connect to achieve core network access and IP offload access.
  • the radio side network element sends the local gateway information to the mobility management entity. After determining that the IP diversion needs to be performed, the mobility management entity establishes an IP offload connection with the local gateway. It can be seen that the IP offload connection needs to judge whether to allow IP offloading. When the mobility management entity confirms that there is no need to establish an IP offload connection, the local gateway information does not need to be transmitted to the network side. However, in the current operation, even if the mobility management entity confirms that the IP offload connection is not required, the radio side network element transmits the local gateway information to the network side, resulting in information redundancy, increased message length, and system processing burden. Summary of the invention
  • the main purpose of the present invention is to provide a method and system for acquiring network element information, and try to ensure that local gateway information is transmitted only when needed, thereby avoiding information redundancy and reducing system processing load.
  • a method for acquiring network element information includes:
  • the home base station gateway or the network element management system sends local gateway information to the mobility management entity.
  • the process of determining the presence of the home base station gateway and/or allowing the IP offload connection is implemented by the determining operation includes:
  • the IP offload connection process is an IP offload connection establishment or update or activation process; includes: an attach process, or a packet data network connection establishment, or a PDP context activation, or a service request process, or a handover process, or a location update process. .
  • the process of sending the local gateway information to the mobility management entity includes: The home base station gateway or the network element management system searches for local gateway information according to the user identity or the home base station identity and returns it to the mobility management entity.
  • the method further includes:
  • the local gateway information is a local gateway address or a local gateway ID/name/full name domain name FQDN/domain name; the local gateway corresponding to the local gateway information is a local service gateway L-SGW and a local packet data gateway L-PGW, Or a separate L-PGW, or a local gateway GPRS support node L-GGSN and a local GPRS service support node L-SGSN, or a separate L-GGSN, or a data offloading functional entity;
  • the network element management system is a radio side network element management system, and the radio side network element is a base station, a home base station, a radio network controller RNC, a local gateway, and a traffic off function entity;
  • the mobility management entity is a mobility management unit MME, a mobile switching center MSC, and a GPRS service support node SGSN;
  • the IP offloading is a local IP access user local network, a local IP access company local network, a local IP access Internet, a diversion operation of the Internet service, and a selective IP data offload.
  • a network element information acquisition system includes an IP offload decision unit and an information providing unit.
  • the IP offload decision unit is configured to determine whether there is a home base station gateway and/or whether to allow IP offloading during the IP offload connection process. Connecting, and notifying the information providing unit of the judgment result;
  • the information providing unit is configured to trigger local gateway information required for feedback by the home base station gateway or the network element management system.
  • the IP offloading determining unit is configured to: when determining whether there is a home base station gateway and/or whether to allow an IP offload connection;
  • the IP offload connection process is an IP offload connection establishment or update or activation process; includes: an attach process, or a packet data network connection establishment, or a PDP context activation, or a service request process, or a handover process, or a location update process. .
  • the information providing unit feeds back the local gateway information, it is used to:
  • the home base station gateway or the network element management system is triggered to search for local gateway information according to the user identity or the home base station identity and return to the mobility management entity.
  • the IP offloading determining unit is further configured to trigger subsequent processing including modifying the bearer.
  • the local gateway information is a local gateway address or a local gateway ID/name/FQDN/domain name; the local gateway corresponding to the local gateway information is an L-SGW and an L-PGW, or a separate L-PGW, or L-GGSN and L-SGSN, or a separate L-GGSN, or a data offloading functional entity;
  • the network element management system is a radio side network element management system, and the radio side network element is a base station, a home base station, an RNC, a local gateway, and a traffic off function entity;
  • the mobility management entity is an MME, an MSC, and an SGSN;
  • the IP offloading is a local IP access user local network, a local IP access company local network, a local IP access Internet, a diversion operation of the Internet service, and a selective IP data offload.
  • the radio side network element Even if the mobility management entity confirms that the IP offload connection is not required to be established, the radio side network element still transmits the local gateway information to the network side; instead, it can ensure that only when needed The local gateway information is transmitted, so that information redundancy can be avoided as much as possible, the message length is not increased, and the system processing load can be effectively reduced.
  • FIG. 1 is a schematic diagram 1 of a wireless communication network connection in the prior art
  • FIG. 2 is a schematic diagram 2 of a wireless communication network connection in the prior art
  • 3 is a schematic diagram 3 of a wireless communication network connection in the prior art
  • FIG. 4 is a schematic diagram 1 of an IP split data of a wireless communication system in the prior art
  • FIG. 5a is a schematic diagram 2 of an IP split data of a wireless communication system in the prior art
  • FIG. 5b is a schematic diagram 3 of IP split data of a wireless communication system in the prior art
  • FIG. 6 is a flowchart of power-on registration of a home base station according to an embodiment of the present invention.
  • 6a is a flowchart of a process of establishing an IP offload connection when a user initially accesses according to an embodiment of the present invention
  • FIG. 7 is a flowchart of a service request process when a terminal transitions from an idle state to a connected state according to an embodiment of the present invention
  • FIG. 8 is a flowchart of a handover process performed by a terminal according to an embodiment of the present invention.
  • FIG. 9 is a flowchart of a location update process performed by a terminal according to an embodiment of the present invention.
  • FIG. 10 is a flowchart of a process of establishing an IP offload connection when a user initially accesses according to another embodiment of the present invention.
  • FIG. 11 is a schematic diagram of a network element information acquisition process according to an embodiment of the present invention.
  • FIG. 12 is a diagram of a network element information acquisition system according to an embodiment of the present invention. detailed description
  • the radio side network element or the network element management system returns the local gateway information to the mobility management entity only after receiving the message that the mobility management entity queries the local gateway information.
  • the IP offload connection setup or update or activation process includes: an attach procedure, or a PDN connection setup, or a PDP context activation, or a service request procedure, or a handover procedure, or a location update procedure.
  • the mobility management entity may send the S1 or Iu message or new after determining that the home base station gateway exists and/or determining that the IP offload connection is allowed.
  • the message is used to request the local gateway information from the wireless side network element or the network element management system, and the message for requesting the local gateway information may carry the user identifier or the wireless side network element identifier;
  • the method for the home base station gateway may be: determining that there is a home base station gateway according to the tracking area identifier, or when the home base station is in a closed mode, the home base station gateway is considered to exist.
  • the configuration server may be a DNS server or the present mobility management entity (locally configured at this time) or a network element management system.
  • the network element management system may be a wireless side network element management system.
  • the user identity may be an IMSI or a temporary subscriber identity or an S 1 -AP UE Id.
  • the wireless side network element may be a base station, a home base station, a radio network controller (RNC), a local gateway, and a traffic off function entity.
  • the mobility management entity may be an MME, a Mobile Switching Center (MSC), or a GPRS Service Support Node (SGSN).
  • the local gateway may be an L-SGW and an L-PGW, may be a separate L-PGW, may be a local gateway GPRS support node (L-GGSN) and a local GPRS service support node (L-SGSN), and may be a separate L-
  • the GGSN can be a data offloading functional entity.
  • the wireless side network element of the IP offload can be the same as the local gateway address.
  • IP offloading can be local IP access to the user's local network, local IP access to the company's local network, local IP access to the Internet, Internet traffic shunting, and selective IP data offloading.
  • E-UTRAN Evolved Universal Terrestrial Radio Access Network
  • FIG. 6 is a flow chart of the process of registering a home base station on the basis of the system of FIG. 2 according to the system of the present invention. The process includes the following steps:
  • Step 601 After the home base station is powered on, send a home base station registration request message to the home base station gateway, where the local gateway information is carried;
  • Step 602 The home base station gateway records the correspondence between the local gateway and the home base station, and returns the home base station registration response response to the home base station.
  • Figure 6a is a flow chart showing the process of establishing an IP-split connection when the user initially accesses the data stream of the system of Figure 2 and Figure 5a.
  • the process shown in Figure 6a includes the following steps:
  • step 6a00 the user needs to establish an RRC (Radio Resource Control) connection before the communication, as a bearer of the signaling message or the service data;
  • RRC Radio Resource Control
  • Step 6a01 The user sends an initial NAS (Non-Access-Stratum) message to perform an attach operation.
  • initial NAS Non-Access-Stratum
  • Step 6a02 the wireless side network element sends the initial user message to the mobility management entity via the home base station gateway, and forwards the NAS message to the mobility management entity.
  • Step 6a03 the mobility management entity starts the authentication and security process, and authenticates the user;
  • Step 6a04 the mobility management entity requests the HSS to perform location update;
  • Step 6a05 the HSS responds to the mobility management entity with a location update response
  • the mobility management entity queries the home base station gateway or the network element management system for the local gateway information.
  • the mobility management entity may determine that the home base station gateway exists (the determination method may be: carrying the message according to step 6a02)
  • the tracking area identifier determines whether there is a home base station gateway, or considers that there is a home base station gateway when the home base station is in the closed mode) and/or determines that the IP offload connection is allowed (the determination method can determine whether the permission is allowed through the subscription, the wireless side network element capability, and the terminal willingness to allow)
  • the local gateway information is requested from the home base station gateway or the network element management system by sending an S1 or Iu message or a new message, and the message requesting the local gateway information may carry the user identifier or the radio side network element identifier;
  • Step 6a06b the home base station gateway or the network element management system searches for local gateway information according to the user identifier or the home base station identifier, and returns the information to the mobility management entity.
  • Step 6a07 When the mobility management entity determines that the IP offload connection needs to be established according to the subscription information or the local policy, the session establishment request that carries the local gateway information is sent to the core network gateway. To establish an IP offload connection;
  • Step 6a08 The core network gateway sends a session establishment request message to the local gateway.
  • Step 6a09 The local gateway sends a session establishment response to the core network gateway, where the local gateway identifier is carried only;
  • Step 6al 1 the core network gateway sends a session establishment response to the mobility management entity; Step 6al2, performs an RRC connection configuration process;
  • Step 6al3 the wireless side network element returns an initial context establishment response to the mobility management entity;
  • Step 6al4 the terminal sends a direct transmission message to the wireless side network element, where the direct transmission message includes the attachment completion information;
  • Step 6al5 the wireless side network element sends an attach complete message to the mobility management entity;
  • Step 6al6a the home base station requests the local gateway to perform bearer setup;
  • Step 6al6b the local gateway responds to the bearer setup response to the home base station
  • Step 6al7 The mobility management entity requests the local gateway to update the bearer via the core network gateway.
  • FIG. 7 is a flow chart showing the process of requesting a service when the terminal transitions from an idle state to a connected state based on the system architecture of FIG. 2 and the data stream of FIG. 5a.
  • the process shown in Figure 7 includes the following steps:
  • Step 700 After the terminal accesses the wireless communication system, the terminal has an IP offload connection, and then the terminal enters an idle state;
  • Step 701 The terminal initiates a service request to the mobility management entity by using the radio side network element.
  • Step 702 Perform a NAS authentication process, where the step is an optional step.
  • Step 703a The mobility management entity queries the home base station gateway or the network element management system for local gateway information.
  • the mobility management entity may determine that there is a home base station gateway.
  • the method may be: determining whether there is a home base station gateway according to the tracking area identifier carried in the message in step 701, or determining that the home base station gateway exists when the home base station is in the closed mode) and/or determining that the IP offload connection is allowed (the determination method may be through signing)
  • the local gateway information is requested from the home base station gateway or the network element management system by sending an S1 or Iu message or a new message, and the message requesting the local gateway information may be Carry the user identifier or the wireless side network element identifier;
  • Step 703b The home base station gateway or the network element management system searches for local gateway information according to the user identifier or the home base station identifier, and returns the information to the mobility management entity.
  • Step 703c The mobility management entity finds that the local gateway information returned in step 703b is inconsistent with the saved local gateway information (that is, the local gateway information served by the terminal before the terminal enters the idle state), and the IP offload connection is not established or released. End the process; otherwise, perform the following steps:
  • Step 705 The wireless side network element performs a radio bearer establishment process
  • Step 707 The mobility management entity sends a modify bearer request message to the core network gateway.
  • Step 708 The core network gateway sends a modify bearer request message to the local gateway.
  • Step 709 The local gateway responds to the core network gateway with a modified response message.
  • Step 710 The core network gateway responds to the mobility management entity with a modify bearer response message.
  • FIG. 8 is a flow chart of the process of the terminal performing handover according to the data flow of the system of FIG. 2 and FIG. 5a, and the specific steps are as follows:
  • Step 801 The wireless side network element determines that an S1 handover needs to be initiated.
  • Step 802 The original radio side network element sends a handover request to the original mobility management entity.
  • Step 803 The original mobility management entity sends a relocation forward request message to the target mobility management entity, where the original local gateway information is carried.
  • Step 804 The target mobility management entity may initiate a session establishment process of the IP offload connection to the core network gateway.
  • Step 805a The mobility management entity queries the home base station gateway or the network element management system for the local gateway information.
  • the mobility management entity may determine that the home base station gateway exists (the determination method may be: carrying according to the message in step 803)
  • the tracking area identifier determines whether there is a home base station gateway, or considers that there is a home base station gateway when the home base station is in the closed mode) and/or determines that the IP offload connection is allowed (the determination method can determine whether the permission is allowed through the subscription, the wireless side network element capability, and the terminal willingness to allow)
  • the local gateway information is requested from the home base station gateway or the network element management system by sending an S1 or Iu message or a new message, and the message requesting the local gateway information may carry the user identifier or the radio side network element identifier;
  • Step 805b The home base station gateway or the network element management system searches for local gateway information according to the user identifier or the home base station identifier, and returns the information to the mobility management entity.
  • Step 805c The mobility management entity finds that the local gateway information returned by step 805b is inconsistent with the local gateway information sent in step 803 (that is, the local gateway information served by the terminal before the terminal enters the idle state), and the IP offload connection is not established or released. , receive this process; otherwise, perform the following steps:
  • Step 806 The target mobility management entity requests the target radio side network element to perform handover.
  • Step 807 The target radio side network element responds to the target mobility management entity with a handover request acknowledgement message.
  • Step 808 The target mobility management entity sends a relocation forward response message to the original mobility management entity.
  • Step 810 The original mobility management entity sends a handover command to the original radio side network element.
  • Step 812 The original radio side network element sends a handover command to the terminal.
  • Step 813 The terminal initiates a handover confirmation message to the target radio side network element.
  • Step 814 The target radio side network element notifies the target mobility management entity to perform the handover.
  • Step 815 The target radio side network element sends a relocation forward completion notification message to the original mobility management entity.
  • Step 816 The original radio side network element returns a relocation forward completion confirmation message to the target mobility management entity.
  • Step 817 The target mobility management entity sends a modify bearer request to the core network gateway.
  • Step 818 The core network gateway sends a modify bearer request to the local gateway.
  • Step 819 The local gateway responds to the core network gateway with a modified response.
  • Step 820 The core network gateway sends a response to the target mobility management entity to modify the bearer response message
  • Figure 9 is a flow chart showing the process of updating the location of the terminal based on the system architecture of Figure 2 and the data stream of Figure 5a.
  • the location update process requires the establishment of a radio bearer. Specific steps are described below:
  • Step 901 The terminal sends a tracking area update request message to the mobility management entity by using the target radio side network element, where the terminal may carry the activation identifier.
  • Step 902 The target mobility management entity sends a context request message to the original mobility management entity.
  • Step 903 The original mobility management entity sends a context response message to the target mobility management entity, where the original local gateway information is carried.
  • Step 904 The terminal, the mobility management entity, and the authentication authorization server perform an authentication process, and the step is an optional step.
  • Step 905a The mobility management entity queries the home base station gateway or the network element management system for local gateway information.
  • the mobility management entity may determine that there is a home base station gateway.
  • the method may be: determining whether there is a home base station gateway according to the tracking area identifier carried in the message in step 901, or determining that the home base station gateway exists when the home base station is in the closed mode) and/or determining that the IP split connection is allowed (the determination method may pass After the subscription, the wireless side network element capability, and the terminal's willingness to determine whether to allow the IP offload connection, the S2 or Iu message or the new message is sent to the home base station gateway or the network element management system to request the local gateway information to request the local gateway information message.
  • the user identifier or the wireless side network element identifier may be carried.
  • Step 905b The home base station gateway or the network element management system searches for local gateway information according to the user identifier or the home base station identifier, and returns the information to the mobility management entity.
  • Step 905c The mobility management entity finds that the local gateway information returned by step 905b is inconsistent with the local gateway information sent in step 903 (that is, the local gateway information served by the terminal before the terminal enters the idle state), and the IP offload connection is not established or released. , end this process; otherwise, perform the following steps:
  • Step 906 The target mobility management entity sends a context confirmation message to the original mobility management entity.
  • Step 907 The target mobility management entity requests a bearer modification operation from the core network gateway.
  • Step 908 The core network gateway may send a modify bearer request to the local gateway.
  • Step 909 The local gateway may respond to the core network gateway with a response to the change
  • Step 910 The core network gateway sends a response to the target mobility management entity to modify the bearer response.
  • Step 912 Perform a location cancellation process between the authentication authorization server and the original mobility management entity; request message;
  • Step 914 The target radio side network element performs a radio bearer setup process. /Wireless 7 load completion message;
  • Step 916 The target mobility management entity requests the core network gateway to perform bearer modification.
  • Step 917 The core network gateway sends a modify bearer request message to the local gateway.
  • Step 918 The local gateway responds to the core network gateway with a modified response.
  • Step 919 The core network gateway sends a modify bearer response message to the target mobility management entity.
  • the following embodiments describe an application scenario based on the UTRAN system.
  • FIG. 10 is a flow chart showing the process of establishing an IP offload connection when the user initially accesses the system based on the system of FIG. 2. The specific steps of this embodiment are described as follows:
  • Step 1001 The terminal performs an operation of attaching to a network.
  • Step 1002 The terminal sends a PDP context activation request to the SGSN.
  • Step 1003a the mobility management entity (in this case, the SGSN) queries the home base station gateway or the network element management system for local gateway information.
  • the mobility management entity may determine that there is a home base station gateway (the determination method may be: according to the steps
  • the tracking area identifier carried in the message in 1002 determines that there is a home base station gateway, or considers that there is a home base station gateway when the home base station is in the closed mode) and/or determines that the IP offload connection is allowed (the determination method can be through the subscription, the wireless side network element capability)
  • the local gateway information is requested from the home base station gateway or the network element management system by sending an S1 or Iu message or a new message, and the message requesting the local gateway information may carry the user identifier or the wireless side.
  • Network element identifier the determination method may be: according to the steps
  • the tracking area identifier carried in the message in 1002 determines that there is a home base station gateway, or considers that there is a home base station
  • Step 1003b The home base station gateway or the network element management system searches for local gateway information according to the user identifier or the home base station identifier, and returns the information to the mobility management entity.
  • Step 1004 The SGSN requests the L-GGSN to perform context establishment.
  • Step 1005 The L-GGSN responds to the SGSN with a context establishment response.
  • Step 1006 Perform a radio access bearer setup procedure between the SGSN, the radio side network element, and the terminal.
  • Step 1007 The SGSN sends a PDP context update request to the L-GGSN.
  • Step 1008 The L-GGSN responds to the SGSN with a PDP context update response.
  • Step 1009 The SGSN returns a PDP context activation response message to the terminal.
  • the above embodiment only uses the case of FIG. 2 as an example to describe the manner in which the local gateway information is acquired during the IP offload connection.
  • the network element information acquisition flow of the IP offload connection is similar to the above embodiment, and It will have an impact on the description of the invention, and therefore will not be described again.
  • the power registration process of the wireless side network element does not need to bring the local gateway information to the mobility management entity, but in the subsequent PDN connection establishment, PDP context.
  • the mobility management entity requests and acquires the local gateway information from the home base station, and the network element information acquisition process of the IP offload connection is similar to the foregoing embodiment, and does not cause the invention to be Influence, so no longer repeat them.
  • the local gateway information may be a local gateway address or a local gateway ID/name/FQDN/domain name. If the local gateway information is the local gateway ID/name/FQDN/domain name, the mobility management entity will obtain the local gateway address through the configuration server according to the local gateway ID/name/FQDN/domain name.
  • the configuration server may be a DNS server or the local mobility management entity (local configuration at this time) or an element management system.
  • the network element management system may be a wireless side network element management system.
  • the user identity may be an IMSI or a temporary subscriber identity or a Sl-AP UE Id.
  • the wireless side network element may be a base station, a home base station, an RNC, a local gateway, and a traffic off function entity.
  • the mobility management entity may be an MME, an MSC, or an SGSN.
  • the local gateway may be an L-SGW and an L-PGW, may be a separate L-PGW, may be an L-GGSN and an L-SGSN, may be a separate L-GGSN, and may be a data offloading functional entity.
  • the local gateway includes a split access gateway and/or a offload service gateway; the offload access gateway is an L-PGW or an L-GGSN; and the offload service gateway is an L-SGW or an L-SGSN.
  • the physical location of the local gateway can Close to a wireless network or a user or user attachment point.
  • the local gateway can implement the functions of the Serving Gateway S-GW and/or the Packet Data Network Gateway P-GW.
  • the local gateway may be a serving gateway S-GW and/or a packet data network gateway P-GW located close to the wireless network or a user or user attachment point.
  • the wireless side network element of the IP offload can be the same as the local gateway address.
  • IP offloading can be local IP access to the user's local network, local IP access to the company's local network, local IP access to the Internet, Internet traffic shunting, and selective IP data offloading.
  • FIG. 11 is a schematic diagram of a network element information acquisition process according to an embodiment of the present invention, where the process includes the following steps:
  • Step 1110 In the IP offload connection processing process (such as: IP offload connection establishment or update or activation process), determine that there is a home base station gateway and/or allow IP offload connection;
  • IP offload connection processing process such as: IP offload connection establishment or update or activation process
  • Step 1120 Send the required local gateway information to the mobility management entity.
  • FIG. 12 is a diagram of a network element information acquisition system according to an embodiment of the present invention.
  • the system includes a connected IP offload decision unit and an information providing unit.
  • the IP offload decision unit may be set in a mobility management entity.
  • the providing unit can be set in the home base station gateway or set independently.
  • the IP offloading decision unit can determine whether there is a home base station gateway and/or whether to allow IP shunt connection in an IP offload connection process (such as an IP offload connection establishment or update or activation process); The result is notified to the information providing unit, and the required local gateway information is fed back by the information providing unit. Moreover, the IP offload decision unit can also compare the local gateway information fed back by the information providing unit. When the local gateway information is inconsistent, the IP offload connection is not established or released. Furthermore, the IP offload decision unit can perform subsequent modification bearers and the like when the local gateway information is consistent.
  • an IP offload connection process such as an IP offload connection establishment or update or activation process
  • the network element information acquisition technology of the present invention is no longer the same as the prior art, even if the mobility management entity confirms that there is no need to establish an IP offload connection, the radio side network element still sends the local gateway information to The network side transmits; instead, it can ensure that the local gateway information is transmitted only when needed. Therefore, information redundancy can be avoided as much as possible, the message length is not increased, and the system processing load can be effectively reduced.

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Abstract

本发明公开了一种网元信息获取方法和系统,均可在IP分流连接处理过程中,确定存在家用基站网关和/或允许IP分流连接;并由家用基站网关或网元管理系统向移动性管理实体发送本地网关信息。本发明方法和系统不再像现有技术那样,即使移动性管理实体确认无需建立IP分流连接,无线侧网元仍然将本地网关信息向网络侧进行传送;而是能够尽量保证只在需要时才传送本地网关信息,因此能够尽量避免信息冗余,不会增加消息长度,能够有效降低系统处理负担。

Description

一种网元信息获取方法和系统 技术领域
本发明涉及通信领域, 具体涉及一种网元信息获取方法和系统。 背景技术
第三代合作伙伴计划 (3rd Generation Partnership Project, 3GPP )演进 的分组系统(Evolved Packet System, EPS ) 由演进的通用移动通信系统陆 地无线接入网 ( Evolved Universal Terrestrial Radio Access Network , E-UTRAN )、 移动管理单元 ( Mobility Management Entity, MME )、 服务网 关 (Serving Gateway, S-GW )、 分组数据网络网关 (Packet Data Network Gateway, P-GW或者 PDN GW)、归属用户服务器( Home Subscriber Server, HSS )、 3 GPP的认证授权计费 ( Authentication、 Authorization and Accounting, AAA )服务器, 策略和计费规则功能( Policy and Charging Rules Function, PCRF ) 实体及其他支撑节点组成。
图 1是现有技术的 EPS系统架构示意图, 如图 1所示, 移动性管理实 体负责移动性管理、 非接入层信令的处理和用户移动管理上下文的管理等 控制面的相关工作; S-GW 是与 E-UTRAN 相连的接入网关设备, 在 E-UTRAN和 P-GW之间转发数据, 并且负责对寻呼等待数据进行緩存; P-GW则是 EPS与分组数据网络( Packet Data Network, PDN )的边界网关, 负责 PDN的接入及在 EPS与 PDN间转发数据等功能; S-GW和 P-GW都 属于核心网网关。
家用基站是一种小型、 低功率的基站, 部署在家庭及办公室等室内场 所, 主要作用是给用户提供更高的业务速率并降低使用高速率服务所需要 的费用, 同时弥补已有分布式蜂窝无线通信系统的覆盖不足。 家用基站的 优点是实惠、 便捷、 低功率输出、 即插即用等。 在家用基站系统中, 家用 基站为无线侧网元。 如图 2所示, 家用基站可以通过家用基站网关接入核 心网络, 也可以直接连接核心网络(如图 1所示), 其中, 家用基站网关的 主要功能为: 验证家用基站的安全性, 处理家用基站的注册, 对家用基站 进行运行维护管理, 根据运营商要求配置和控制家用基站, 负责交换核心 网和家用基站的数据。
除了支持移动核心网络的接入以外, 移动通信系统(包括家用基站系 统)还可支持 IP分流功能, 在无线侧网元具备 IP分流能力以及用户签约允 许 IP分流的条件下,可实现终端对家用网络其他 IP设备或者互联网络的本 地接入。
在图 1、 图 2和图 3所示系统中, 可以增设本地网关以提供对 IP分流 技术的有力支持, 本地网关作为本地接入到外部网络(例如 Internet ) 的网 关, 提供地址分配、 计费、 分组包过滤、 策略控制、 数据分流功能、 NAS/S1-AP/RANAP ( Radios Access Network Application Part, 无线接入网 应用部分) /GTP ( General Tunneling Protocol, 通用隧道协议) /PMIP ( Proxy Mobile IP, 代理移动 IP协议) /MIP ( Mobile IP, 移动 IP协议) 消息解析、 NAT ( Network Address Translation, 网络地址转换 )、 IP分流策略路由和执 行等功能。 本地网关可与无线侧网元合设。
当存在家用基站网关的情况下, 本地网关不仅可与家用基站进行合设 (如图 2所示)或分设, 也可与家用基站网关进行合设(如图 3所示)或 分设。 其中, 本地网关可以是本地服务网关 (Local SGW, L-SGW )和本 地分组数据网关(Local PGW, L-PGW ), 也可以是单独的 L-PGW, 还可以 是数据分流功能实体。 此外, 家用基站网关可以与家用基站合设。
以图 1为例, IP分流可以通过在本地网关上增设(如图 4所示)或不 增设(如图 5a和图 5b所示) NAT地址转换功能来实现, 不限于通过一个 连接来同时实现核心网访问以及 IP分流的访问功能。
在 IP分流连接建立的过程中, 无线侧网元将本地网关信息发送给移动 性管理实体, 移动性管理实体在确定需要进行 IP分流后, 向服务网关与本 地网关建立 IP分流连接。 由此可见, IP分流连接需要对是否允许 IP分流 进行判断, 在移动性管理实体确认无需建立 IP分流连接的情况下, 不需要 将本地网关信息向网络侧进行传送。 然而, 在目前的操作过程中, 即使移 动性管理实体确认无需建立 IP分流连接, 无线侧网元仍然将本地网关信息 向网络侧进行传送, 从而导致信息冗余、 增加消息长度以及系统处理负担。 发明内容
有鉴于此, 本发明的主要目的在于提供一种网元信息获取方法和系统, 尽量保证只在需要时才传送本地网关信息, 尽量避免信息冗余, 降低系统 处理负担。
为达到上述目的, 本发明的技术方案是这样实现的:
一种网元信息获取方法, 包括:
IP分流连接处理过程中, 确定存在家用基站网关和 /或允许 IP分流连 接; 家用基站网关或网元管理系统向移动性管理实体发送本地网关信息。
其中, 确定存在家用基站网关和 /或允许 IP分流连接, 是由判断操作实 现的, 所述判断操作的过程包括:
根据通信消息中所携带的跟踪区标识判断存在家用基站网关, 或者在 家用基站为闭合模式时认为存在家用基站网关;
通过签约、 无线侧网元能力、 终端意愿判断是否允许 IP分流连接。 其中,所述 IP分流连接处理过程为 IP分流连接建立或更新或激活过程; 包括: 附着流程、 或者分组数据网络连接建立、 或者 PDP上下文激活、 或 者服务请求过程、 或者切换过程、 或者位置更新过程。
其中, 向移动性管理实体发送所述本地网关信息的过程包括: 家用基站网关或网元管理系统根据用户标识或家用基站标识查找本地 网关信息并返回给移动性管理实体。
其中, 该方法还包括:
进行包括修改承载在内的后续处理。
其中, 所述本地网关信息为本地网关地址或本地网关 ID/名称 /全称域 名 FQDN/域名; 所述本地网关信息所对应的本地网关为本地服务网关 L-SGW和本地分组数据网关 L-PGW , 或为单独的 L-PGW , 或为本地网关 GPRS支持节点 L-GGSN和本地 GPRS服务支持节点 L-SGSN,或为单独的 L-GGSN, 或为数据分流功能实体;
所述网元管理系统为无线侧网元管理系统, 该无线侧网元为基站、 家 用基站、 无线网络控制器 RNC、 本地网关、 分流功能实体;
所述移动性管理实体为移动管理单元 MME、移动交换中心 MSC、 GPRS 服务支持节点 SGSN;
所述 IP分流为本地 IP访问用户本地网络、本地 IP访问公司本地网络、 本地 IP访问互联网、 互联网业务的分流操作、 有选择的 IP数据分流。
一种网元信息获取系统, 包括 IP分流判决单元、信息提供单元; 其中, 所述 IP分流判决单元,用于在 IP分流连接处理过程中, 判断是否存在 家用基站网关和 /或是否允许 IP分流连接,并将判断结果通知给信息提供单 元;
所述信息提供单元, 用于触发家用基站网关或网元管理系统反馈所需 的本地网关信息。
其中,所述 IP分流判决单元在判断是否存在家用基站网关和 /或是否允 许 IP分流连接时, 用于:
根据通信消息中所携带的跟踪区标识判断存在家用基站网关, 或者在 家用基站为闭合模式时认为存在家用基站网关; 通过签约、 无线侧网元能力、 终端意愿判断是否允许 IP分流连接。 其中,所述 IP分流连接处理过程为 IP分流连接建立或更新或激活过程; 包括: 附着流程、 或者分组数据网络连接建立、 或者 PDP上下文激活、 或 者服务请求过程、 或者切换过程、 或者位置更新过程。
其中, 所述信息提供单元反馈所述本地网关信息时, 用于:
触发家用基站网关或网元管理系统根据用户标识或家用基站标识查找 本地网关信息并返回给移动性管理实体。
其中, 所述 IP分流判决单元, 还用于触发包括修改承载在内的后续处 理。
其中, 所述本地网关信息为本地网关地址或本地网关 ID/名称 /FQDN/ 域名; 所述本地网关信息所对应的本地网关为 L-SGW和 L-PGW, 或为单 独的 L-PGW, 或为 L-GGSN和 L-SGSN, 或为单独的 L-GGSN, 或为数据 分流功能实体;
所述网元管理系统为无线侧网元管理系统, 该无线侧网元为基站、 家 用基站、 RNC、 本地网关、 分流功能实体;
所述移动性管理实体为 MME、 MSC、 SGSN;
所述 IP分流为本地 IP访问用户本地网络、本地 IP访问公司本地网络、 本地 IP访问互联网、 互联网业务的分流操作、 有选择的 IP数据分流。
本发明方法和系统不再像现有技术那样, 即使移动性管理实体确认无 需建立 IP分流连接, 无线侧网元仍然将本地网关信息向网络侧进行传送; 而是能够尽量保证只在需要时才传送本地网关信息, 因此能够尽量避免信 息冗余, 不会增加消息长度, 能够有效降低系统处理负担。 附图说明
图 1为现有技术中无线通信网络连接示意图一;
图 2为现有技术中无线通信网络连接示意图二; 图 3为现有技术中无线通信网络连接示意图三;
图 4为现有技术中无线通信系统 IP分流数据示意图一;
图 5a为现有技术中无线通信系统 IP分流数据示意图二;
图 5b为现有技术中无线通信系统 IP分流数据示意图三;
图 6为本发明一实施例的家用基站上电注册流程图;
图 6a为本发明一实施例的用户初始接入时进行 IP分流连接的建立过程 流程图;
图 7为本发明一实施例的终端由空闲态转为连接态时进行服务请求过 程的流程图;
图 8为本发明一实施例的终端进行切换过程的流程图;
图 9为本发明一实施例的终端进行位置更新过程的流程图;
图 10为本发明另一实施例的用户初始接入时进行 IP分流连接的建立过 程流程图;
图 11为本发明一实施例的网元信息获取流程简图;
图 12为本发明一实施例的网元信息获取系统图。 具体实施方式
总体而言, IP 分流连接建立或更新或激活过程中, 只有在接收到移动 性管理实体查询本地网关信息的消息后, 无线侧网元或网元管理系统才向 移动性管理实体返回本地网关信息。 所述 IP分流连接建立或更新或激活过 程包括: 附着流程、 或者 PDN连接建立、 或者 PDP上下文激活、 或者服务 请求过程、 或者切换过程、 或者位置更新过程。 移动性管理实体向家用基 站网关或网元管理系统查询本地网关信息的过程中, 移动性管理实体可以 在判断存在家用基站网关和 /或判断允许 IP分流连接后, 通过发送 S1或 Iu 消息或新消息来向无线侧网元或网元管理系统请求本地网关信息, 用于请 求本地网关信息的消息可以携带用户标识或无线侧网元标识; 其中, 判断 存在家用基站网关的方法可以为: 根据跟踪区标识判断存在家用基站网关, 或者在家用基站为闭合模式时, 则认为存在家用基站网关。
( FQDN ) /域名。 如果本地网关信息为本地网关 ID/名称 /FQDN/域名, 则移 动性管理实体将根据该本地网关 ID/名称 /FQDN/域名通过配置服务器获取 本地网关地址。所述配置服务器可以是 DNS服务器或本移动性管理实体(此 时为本地配置)或网元管理系统。
所述网元管理系统可以是无线侧网元管理系统。 所述用户标识可以是 IMSI或临时用户标识或 S 1 -AP UE Id。 无线侧网元可以是基站、 家用基站、 无线网络控制器(RNC )、 本地网关、 分流功能实体。 移动性管理实体可以 为 MME、 移动交换中心 (MSC )、 GPRS服务支持节点 (SGSN )。 本地网 关可以是 L-SGW和 L-PGW,可以是单独的 L-PGW,可以是本地网关 GPRS 支持节点(L-GGSN )和本地 GPRS服务支持节点(L-SGSN ), 可以是单独 的 L-GGSN, 可以是数据分流功能实体。 IP分流的无线侧网元可以与本地 网关地址相同。 IP分流可以是本地 IP访问用户本地网络、 本地 IP访问公 司本地网络、 本地 IP访问互联网、 互联网业务的分流操作、 有选择的 IP数 据分流。
下面结合附图和具体实施例对本发明技术方案作进一步的详细描述。 以下实施例描述了基于 E-UTRAN ( Evolved Universal Terrestrial Radio Access Network, 演进的通用移动通信系统陆地无线接入网)系统的应用场 景。
图 6是本发明在图 2系统的基础上, 家用基站上电注册过程的流程图, 该流程包括以下步骤:
步骤 601 , 家用基站上电后, 向家用基站网关发送家用基站注册请求消 息, 其中携带本地网关信息; 步骤 602, 家用基站网关记录该本地网关与家用基站的对应关系, 向家 用基站回复家用基站注册应答响应。
图 6a是本发明在图 2系统、 图 5a数据流的基础上,用户初始接入时进 行 IP分流连接的建立过程流程图。 图 6a所示流程包括以下步骤:
步骤 6a00, 用户在进行通信前需要建立 RRC ( Radio Resource Control, 无线资源控制)连接, 以此作为信令消息或者业务数据的承载;
步骤 6a01 , 用户发送初始化 NAS ( Non-Access-Stratum, 非接入层)消 息以进行附着操作;
步骤 6a02 , 无线侧网元将初始的用户消息经家用基站网关发给移动性 管理实体, 并转发 NAS消息至移动性管理实体;
步骤 6a03 , 移动性管理实体开启鉴权以及安全流程, 对用户进行验证; 步骤 6a04, 移动性管理实体请求 HSS进行位置更新;
步骤 6a05 , HSS向移动性管理实体回应位置更新响应;
步骤 6a06a,移动性管理实体向家用基站网关或网元管理系统查询本地 网关信息; 该步骤中, 移动性管理实体可以在判断存在家用基站网关 (判 断方法可以为: 根据步骤 6a02的消息中所携带的跟踪区标识判断存在家用 基站网关, 或者在家用基站为闭合模式时认为存在家用基站网关)和 /或判 断允许 IP分流连接(判断方法可以通过签约、 无线侧网元能力、 终端意愿 判断是否允许 IP分流连接 )后, 则通过发送 S1或 Iu消息或新消息来向家 用基站网关或网元管理系统请求本地网关信息, 请求本地网关信息的消息 可以携带用户标识或无线侧网元标识;
步骤 6a06b,家用基站网关或网元管理系统根据用户标识或家用基站标 识查找本地网关信息并返回给移动性管理实体;
步骤 6a07 , 在移动性管理实体根据签约信息或者本地策略确定需要建 立 IP分流连接时,向核心网网关发送携带有本地网关信息的会话建立请求 , 以进行 IP分流连接的建立;
步骤 6a08 , 核心网网关向本地网关发送会话建立请求消息;
步骤 6a09 , 本地网关向核心网网关发送会话建立响应, 其中携带有本 地网关标 i只;
步骤 6al 0 , 核心网网关向移动性管理实体发送会话建立响应; 步骤 6al2, 执行 RRC连接配置过程;
步骤 6al3 , 无线侧网元向移动性管理实体回复初始上下文建立响应; 步骤 6al4, 终端向无线侧网元发送直传消息, 该直传消息包括附着完 成信息;
步骤 6al5 , 无线侧网元向移动性管理实体发送附着完成消息; 步骤 6al6a, 家用基站向本地网关请求进行承载建立;
步骤 6al6b, 本地网关向家用基站回应承载建立响应;
步骤 6al7, 移动性管理实体经核心网网关向本地网关请求更新承载; 步骤 6al8 , 本地网关经核心网网关向移动性管理实体回复承载更新响 应消息。
图 7显示了本发明在图 2系统架构、 图 5a数据流的基础上, 终端由空 闲态转为连接态时进行服务请求过程的流程图。 图 7所示流程包括以下步 骤:
步骤 700, 终端接入无线通信系统后具有 IP分流连接, 此后终端进入 空闲态;
步骤 701 , 终端经无线侧网元向移动性管理实体发起服务请求; 步骤 702, 执行 NAS认证过程, 该步骤为可选步骤;
步骤 703a, 移动性管理实体向家用基站网关或网元管理系统查询本地 网关信息; 该步骤中, 移动性管理实体可以在判断存在家用基站网关 (判 断方法可以为: 根据步骤 701 的消息所携带的跟踪区标识判断存在家用基 站网关, 或者在家用基站为闭合模式时认为存在家用基站网关)和 /或判断 允许 IP分流连接(判断方法可以通过签约、 无线侧网元能力、 终端意愿判 断是否允许 IP分流连接 )后, 则通过发送 S1或 Iu消息或新消息来向家用 基站网关或网元管理系统请求本地网关信息, 请求本地网关信息的消息可 以携带用户标识或无线侧网元标识;
步骤 703b, 家用基站网关或网元管理系统根据用户标识或家用基站标 识查找本地网关信息并返回给移动性管理实体;
步骤 703c,移动性管理实体发现步骤 703b中所返回的本地网关信息与 保存的本地网关信息 (即, 在终端进入空闲态之前为其服务的本地网关信 息) 不一致, 则不建立或释放 IP分流连接, 结束本流程; 否则, 执行以下 步骤: 息;
步骤 705 , 无线侧网元执行无线承载建立过程; 息;
步骤 707, 移动性管理实体向核心网网关发送修改承载请求消息; 步骤 708 , 核心网网关向本地网关发送修改承载请求消息;
步骤 709, 本地网关向核心网网关回应爹改 载响应消息;
步骤 710, 核心网网关向移动性管理实体回应修改承载响应消息。 图 8是本发明在图 2系统、 图 5a数据流的基础上, 终端进行切换过程 的流程图, 具体步骤描述如下:
步骤 801 , 无线侧网元判断需要发起 S1切换;
步骤 802, 原无线侧网元向原移动性管理实体发送切换请求; 步骤 803 ,原移动性管理实体向目标移动性管理实体发送重定位前转请 求消息, 其中携带有原本地网关信息;
步骤 804, 目标移动性管理实体可以向核心网网关发起 IP分流连接的 会话建立流程;
步骤 805a, 移动性管理实体向家用基站网关或网元管理系统查询本地 网关信息; 该步骤中, 移动性管理实体可以在判断存在家用基站网关 (判 断方法可以为: 根据步骤 803 中的消息所携带的跟踪区标识判断存在家用 基站网关, 或者在家用基站为闭合模式时认为存在家用基站网关)和 /或判 断允许 IP分流连接(判断方法可以通过签约、 无线侧网元能力、 终端意愿 判断是否允许 IP分流连接 )后, 则通过发送 S1或 Iu消息或新消息来向家 用基站网关或网元管理系统请求本地网关信息, 请求本地网关信息的消息 可以携带用户标识或无线侧网元标识;
步骤 805b, 家用基站网关或网元管理系统根据用户标识或家用基站标 识查找本地网关信息并返回给移动性管理实体;
步骤 805c,移动性管理实体发现步骤 805b返回的本地网关信息与步骤 803发送的本地网关信息(即, 在终端进入空闲态之前为其服务的本地网关 信息) 不一致, 则不建立或释放 IP分流连接, 接收本流程; 否则, 执行以 下步骤:
步骤 806, 目标移动性管理实体请求目标无线侧网元执行切换; 步骤 807, 目标无线侧网元向目标移动性管理实体回应切换请求确认消 息;
步骤 808, 目标移动性管理实体向原移动性管理实体发送重定位前转响 应消息;
步骤 810, 原移动性管理实体向原无线侧网元发送切换命令; 步骤 812, 原无线侧网元向终端发送切换命令; 步骤 813 , 终端向目标无线侧网元发起切换确认消息;
步骤 814, 目标无线侧网元通知目标移动性管理实体进行切换; 步骤 815 , 目标无线侧网元向原移动性管理实体发送重定位前转完成通 知消息;
步骤 816,原无线侧网元向目标移动性管理实体回复重定位前转完成确 认消息;
步骤 817 , 目标移动性管理实体向核心网网关发送修改承载请求; 步骤 818 , 核心网网关向本地网关发送修改承载请求;
步骤 819 , 本地网关向核心网网关回应爹改 载响应;
步骤 820, 核心网网关向目标移动性管理实体回应修改承载响应消息; 程, 删除承载。
图 9显示了本发明在图 2系统架构、 图 5a数据流基础上, 终端进行位 置更新过程的流程图, 该位置更新过程需要建立无线承载。 具体步骤描述 下:
步骤 901 ,终端经目标无线侧网元向移动性管理实体发送跟踪区更新请 求消息, 其中可以携带激活标识;
步骤 902 , 目标移动性管理实体向原移动性管理实体发送上下文请求消 息;
步骤 903 ,原移动性管理实体向目标移动性管理实体发送上下文响应消 息, 其中携带原本地网关信息;
步骤 904, 终端、 移动性管理实体、 鉴权授权服务器执行认证过程, 本 步骤为可选步骤;
步骤 905a, 移动性管理实体向家用基站网关或网元管理系统查询本地 网关信息; 该步骤中, 移动性管理实体可以在判断存在家用基站网关 (判 断方法可以为: 根据步骤 901 中的消息所携带的跟踪区标识判断存在家用 基站网关, 或者在家用基站为闭合模式时认为存在家用基站网关)和 /或判 断允许 IP分流连接(判断方法可以通过签约、 无线侧网元能力、 终端意愿 判断是否允许 IP分流连接 )后, 则通过发送 S1或 Iu消息或新消息来向家 用基站网关或网元管理系统请求本地网关信息, 请求本地网关信息的消息 可以携带用户标识或无线侧网元标识;
步骤 905b, 家用基站网关或网元管理系统根据用户标识或家用基站标 识查找本地网关信息并返回给移动性管理实体;
步骤 905c ,移动性管理实体发现步骤 905b返回的本地网关信息与步骤 903发送的本地网关信息(即, 在终端进入空闲态之前为其服务的本地网关 信息) 不一致, 则不建立或释放 IP分流连接, 结束本流程; 否则, 执行以 下步骤:
步骤 906, 目标移动性管理实体向原移动性管理实体发送上下文确认消 息;
步骤 907, 目标移动性管理实体向核心网网关请求承载修改操作; 步骤 908 , 核心网网关可以向本地网关发送修改承载请求;
步骤 909 , 本地网关可以向核心网网关回应 ^ί'爹改 载响应;
步骤 910, 核心网网关向目标移动性管理实体回应修改承载响应; 步骤 911 , 目标移动性管理实体与鉴权授权服务器之间执行位置更新流 程;
步骤 912 , 鉴权授权服务器与原移动性管理实体之间执行位置取消过 程; 请求消息;
步骤 914, 目标无线侧网元执行无线承载建立过程; /无线 7 载建立完成消息;
步骤 916, 目标移动性管理实体请求核心网网关进行承载修改; 步骤 917, 核心网网关向本地网关发送修改承载请求消息;
步骤 918, 本地网关向核心网网关回应爹改 载响应;
步骤 919, 核心网网关向目标移动性管理实体发送修改承载响应消息。 以下实施例描述了基于 UTRAN系统的应用场景。
图 10是本发明在图 2系统的基础上,用户初始接入时进行 IP分流连接 的建立过程流程图。 本实施例具体步骤描述如下:
步骤 1001 , 终端执行附着到网络的操作;
步骤 1002, 终端向 SGSN发送 PDP上下文激活请求;
步骤 1003a, 移动性管理实体(此时为 SGSN )向家用基站网关或网元 管理系统查询本地网关信息; 该步骤中, 移动性管理实体可以在判断存在 家用基站网关(判断方法可以为: 根据步骤 1002中的消息所携带的跟踪区 标识判断存在家用基站网关, 或者在家用基站为闭合模式时认为存在家用 基站网关)和 /或判断允许 IP分流连接 (判断方法可以通过签约、 无线侧网 元能力、 终端意愿判断是否允许 IP分流连接 )后, 则通过发送 S1或 Iu消 息或新消息来向家用基站网关或网元管理系统请求本地网关信息, 请求本 地网关信息的消息可以携带用户标识或无线侧网元标识;
步骤 1003b,家用基站网关或网元管理系统根据用户标识或家用基站标 识查找本地网关信息并返回给移动性管理实体;
步骤 1004 , SGSN请求 L-GGSN进行上下文建立;
步骤 1005 , L-GGSN向 SGSN回应上下文建立响应;
步骤 1006 , SGSN、无线侧网元和终端之间执行无线接入承载建立流程; 步骤 1007, SGSN向 L-GGSN发送 PDP上下文更新请求; 步骤 1008, L-GGSN向 SGSN回应 PDP上下文更新响应; 步骤 1009, SGSN向终端返回 PDP上下文激活响应消息。
为了简化描述, 以上实施例仅以图 2的情况为例来说明 IP分流连接时 本地网关信息的获取方式。 在图 3所示系统的情况下, 无论图 4或图 5a或 图 5b所示数据分流方式、 无论 UTRAN或 E-UTRAN系统, IP分流连接的 网元信息获取流程与上述实施例相似, 并且不会对阐述本发明造成影响, 故不再赘述。
此外, 在图 1 系统不存在家用基站网关的情况下, 无线侧网元(如家 用基站)上电注册过程不需要将本地网关信息带给移动性管理实体, 而在 后续 PDN连接建立、 PDP上下文激活、 业务请求、 切换、 跟踪区更新过程 中由移动性管理实体向家用基站请求并获取本地网关信息, IP 分流连接的 网元信息获取流程与上述实施例相似, 并且不会对阐述本发明造成影响, 故不再赘述。
在以上所有实施例中, 本地网关信息可以是本地网关地址或本地网关 ID/名称 /FQDN/域名。 如果本地网关信息为本地网关 ID/名称 /FQDN/域名, 则移动性管理实体将根据该本地网关 ID/名称 /FQDN/域名通过配置服务器 获取本地网关地址。 其中, 配置服务器可以是 DNS服务器或本移动性管理 实体(此时为本地配置)或网元管理系统。 网元管理系统可以是无线侧网 元管理系统。 用户标识可以是 IMSI或临时用户标识或 Sl-AP UE Id。 无线 侧网元可以是基站、 家用基站、 RNC、 本地网关、 分流功能实体。 移动性 管理实体可以为 MME、 MSC、 SGSN。
本地网关可以是 L-SGW和 L-PGW, 可以是单独的 L-PGW, 可以是 L-GGSN和 L-SGSN , 可以是单独的 L-GGSN , 可以是数据分流功能实体。 本地网关包括分流接入网关和 /或分流服务网关;分流接入网关为 L-PGW或 L-GGSN; 分流服务网关为 L-SGW或 L-SGSN。 本地网关的物理位置可以 靠近无线网络或用户或用户附着点。 本地网关可以实现服务网关 S-GW和 / 或分组数据网络网关 P-GW的功能。 本地网关可以是位置靠近于无线网络 或用户或用户附着点的服务网关 S-GW和 /或分组数据网络网关 P-GW。 IP 分流的无线侧网元可以与本地网关地址相同。 IP分流可以是本地 IP访问用 户本地网络、 本地 IP访问公司本地网络、 本地 IP访问互联网、 互联网业务 的分流操作、 有选择的 IP数据分流。
结合以上所述实施例可知, 本发明的网元信息获取的操作思路, 可以 表示如图 11所示。 参见图 11 , 图 11为本发明一实施例的网元信息获取流 程简图, 该流程包括以下步骤:
步骤 1110: IP分流连接处理过程(如: IP分流连接建立或更新或激活 过程) 中, 确定存在家用基站网关和 /或允许 IP分流连接;
步骤 1120: 向移动性管理实体发送所需的本地网关信息。
为了保证上述实施例及操作思路能够顺利实现, 可以进行如图 12所示 的设置。 参见图 12 , 图 12为本发明一实施例的网元信息获取系统图, 该系 统包括相连的 IP分流判决单元、 信息提供单元; 其中, IP分流判决单元可 以设置于移动性管理实体中, 信息提供单元可以设置于家用基站网关中或 独立设置。
在实际应用中, IP分流判决单元, 能够在 IP分流连接处理过程(如: IP分流连接建立或更新或激活过程) 中, 判断是否存在家用基站网关和 /或 是否允许 IP分流连接; 并将判断结果通知给信息提供单元, 由信息提供单 元反馈所需的本地网关信息。 并且, IP 分流判决单元还能够对信息提供单 元所反馈的本地网关信息进行比对, 当本地网关信息不一致时, 不建立或 释放 IP分流连接。 再有, IP分流判决单元还能在本地网关信息一致时, 进 行后续的修改承载等处理。
需要说明的是, 无论如何设置, 只要图 12中所示单元能够彼此配合, 首先能够顺利判断是否存在家用基站网关和 /或是否允许 IP分流连接,并在 判断结果为是时能够顺利实现本地网关信息的获取即可。 图 12所示单元所 能实现的具体操作已在前述图 6至图 10的流程描述中详细披露, 在此不再 赘述。
综上所述可见, 无论是方法还是系统, 本发明的网元信息获取技术不 再像现有技术那样, 即使移动性管理实体确认无需建立 IP分流连接, 无线 侧网元仍然将本地网关信息向网络侧进行传送; 而是能够尽量保证只在需 要时才传送本地网关信息, 因此能够尽量避免信息冗余, 不会增加消息长 度, 能够有效降低系统处理负担。
以上所述, 仅为本发明的较佳实施例而已, 并非用于限定本发明的保 护范围, 凡在本发明的精神和原则之内所作的任何修改、 等同替换和改进 等, 均应包含在本发明的保护范围之内。

Claims

权利要求书
1、 一种网元信息获取方法, 包括:
IP分流连接处理过程中, 确定存在家用基站网关和 /或允许 IP分流连 接; 家用基站网关或网元管理系统向移动性管理实体发送本地网关信息。
2、根据权利要求 1所述的方法, 其中, 确定存在家用基站网关和 /或允 许 IP分流连接, 是由判断操作实现的, 所述判断操作的过程包括:
根据通信消息中所携带的跟踪区标识判断存在家用基站网关, 或者在 家用基站为闭合模式时认为存在家用基站网关;
通过签约、 无线侧网元能力、 终端意愿判断是否允许 IP分流连接。
3、 根据权利要求 2所述的方法, 其中, 所述 IP分流连接处理过程为 IP 分流连接建立或更新或激活过程; 包括: 附着流程、 或者分组数据网络 连接建立、 或者 PDP上下文激活、 或者服务请求过程、 或者切换过程、 或 者位置更新过程。
4、 根据权利要求 1至 3任一项所述的方法, 其中, 向移动性管理实体 发送所述本地网关信息的过程包括:
家用基站网关或网元管理系统根据用户标识或家用基站标识查找本地 网关信息并返回给移动性管理实体。
5、 根据权利要求 1至 3任一项所述的方法, 其中, 该方法还包括: 进行包括修改承载在内的后续处理。
6、 根据权利要求 1至 3任一项所述的方法, 其中,
所述本地网关信息为本地网关地址或本地网关 ID/名称 /全称域名 FQDN/域名; 所述本地网关信息所对应的本地网关为本地月良务网关 L-SGW 和本地分组数据网关 L-PGW, 或为单独的 L-PGW, 或为本地网关 GPRS 支持节点 L-GGSN 和本地 GPRS 服务支持节点 L-SGSN , 或为单独的 L-GGSN, 或为数据分流功能实体; 所述网元管理系统为无线侧网元管理系统, 该无线侧网元为基站、 家 用基站、 无线网络控制器 RNC、 本地网关、 分流功能实体;
所述移动性管理实体为移动管理单元 MME、移动交换中心 MSC、 GPRS 服务支持节点 SGSN;
所述 IP分流为本地 IP访问用户本地网络、本地 IP访问公司本地网络、 本地 IP访问互联网、 互联网业务的分流操作、 有选择的 IP数据分流。
7、 一种网元信息获取系统, 包括 IP 分流判决单元、 信息提供单元; 其中,
所述 IP分流判决单元,用于在 IP分流连接处理过程中, 判断是否存在 家用基站网关和 /或是否允许 IP分流连接,并将判断结果通知给信息提供单 元;
所述信息提供单元, 用于触发家用基站网关或网元管理系统反馈所需 的本地网关信息。
8、 根据权利要求 7所述的系统, 其中, 所述 IP分流判决单元在判断 是否存在家用基站网关和 /或是否允许 IP分流连接时, 用于:
根据通信消息中所携带的跟踪区标识判断存在家用基站网关, 或者在 家用基站为闭合模式时认为存在家用基站网关;
通过签约、 无线侧网元能力、 终端意愿判断是否允许 IP分流连接。
9、 根据权利要求 8所述的系统, 其中, 所述 IP分流连接处理过程为 IP 分流连接建立或更新或激活过程; 包括: 附着流程、 或者分组数据网络 连接建立、 或者 PDP上下文激活、 或者服务请求过程、 或者切换过程、 或 者位置更新过程。
10、 根据权利要求 7至 9任一项所述的系统, 其中, 所述信息提供单 元反馈所述本地网关信息时, 用于:
触发家用基站网关或网元管理系统根据用户标识或家用基站标识查找 本地网关信息并返回给移动性管理实体。
11、 根据权利要求 7至 9任一项所述的系统, 其中, 所述 IP分流判决 单元, 还用于触发包括修改承载在内的后续处理。
12、 根据权利要求 7至 9任一项所述的系统, 其中,
所述本地网关信息为本地网关地址或本地网关 ID/名称 /FQDN/域名; 所述本地网关信息所对应的本地网关为 L-SGW 和 L-PGW, 或为单独的 L-PGW, 或为 L-GGSN和 L-SGSN, 或为单独的 L-GGSN, 或为数据分流 功能实体;
所述网元管理系统为无线侧网元管理系统, 该无线侧网元为基站、 家 用基站、 RNC、 本地网关、 分流功能实体;
所述移动性管理实体为 MME、 MSC、 SGSN;
所述 IP分流为本地 IP访问用户本地网络、本地 IP访问公司本地网络、 本地 IP访问互联网、 互联网业务的分流操作、 有选择的 IP数据分流。
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014000156A1 (zh) * 2012-06-26 2014-01-03 华为技术有限公司 网络接入方法、网络设备接入点装置以及移动性管理实体装置
WO2015021597A1 (en) * 2013-08-13 2015-02-19 Nokia Siemens Networks Oy Traffic offload in small cell systems

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109673003B (zh) * 2017-10-17 2021-10-26 华为技术有限公司 一种切换的方法、移动性管理网元和通信系统

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101730007A (zh) * 2009-05-19 2010-06-09 中兴通讯股份有限公司 家用基站网关转发消息至家用基站的方法及系统
CN101754210A (zh) * 2008-12-05 2010-06-23 中兴通讯股份有限公司 一种对家用基站设备进行鉴权的方法和系统
CN101790221A (zh) * 2009-01-22 2010-07-28 中兴通讯股份有限公司 家用基站切换时网络接入控制方法及系统

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101388828B (zh) * 2007-09-10 2011-07-13 电信科学技术研究院 演进分组交换系统承载激活的方法及装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101754210A (zh) * 2008-12-05 2010-06-23 中兴通讯股份有限公司 一种对家用基站设备进行鉴权的方法和系统
CN101790221A (zh) * 2009-01-22 2010-07-28 中兴通讯股份有限公司 家用基站切换时网络接入控制方法及系统
CN101730007A (zh) * 2009-05-19 2010-06-09 中兴通讯股份有限公司 家用基站网关转发消息至家用基站的方法及系统

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2014000156A1 (zh) * 2012-06-26 2014-01-03 华为技术有限公司 网络接入方法、网络设备接入点装置以及移动性管理实体装置
WO2015021597A1 (en) * 2013-08-13 2015-02-19 Nokia Siemens Networks Oy Traffic offload in small cell systems

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