WO2012130047A1

WO2012130047A1 - Method and system for obtaining local gateway ip address

Info

Publication number: WO2012130047A1
Application number: PCT/CN2012/072404
Authority: WO
Inventors: 雷小燕; 周娜; 王静; 梁爽
Original assignee: 中兴通讯股份有限公司
Priority date: 2011-04-01
Filing date: 2012-03-15
Publication date: 2012-10-04
Also published as: CN102740282A; CN102740282B

Abstract

Disclosed in the present invention is a method for obtaining a local gateway IP address, comprising: a wireless side network element management system transmitting a local gateway IP address to a wireless side network element. The present invention also provides a system for obtaining a local gateway IP address. The technical solution of the present invention allows a wireless side network element to obtain a local gateway IP address via a wireless side network element management system.

Description

Method and system for obtaining IP address of local gateway

The present invention relates to a local access function in the field of mobile communications, and in particular, to a method and system for obtaining an IP address of a local gateway. Background technique

In order to maintain the competitiveness of the third generation mobile communication system in the field of communication, to provide users with faster, less delayed, more personalized mobile communication services, while reducing operators' operating costs, third-generation partners The 3GPP (3rd Generation Partnership Project) standard working group is working on the evolution of the packet system (EPS, Evolved Packet System). FIG. 1 is a schematic structural diagram of an evolved packet system in the prior art. As shown in FIG. 1, the entire EPS is divided into two parts: a radio access network and a core network. In the core network, the home subscriber server (HSS), the mobility management entity (MME, Mobility Management Entity), the Serving GPRS Support Node (SGSN), and the policy charging rule function (PCRF, Policy and Charging Rule Function), a serving gateway (S-GW, serving gateway) , a packet data gateway (P-GW, PDN gateway) and a packet data network (PDN, packet data network) ₀

The functions of each part are described in detail below:

The home subscriber server is located in the home network that the subscriber subscribes to and is used to permanently store the subscriber subscription data.

The mobility management entity is configured to store user subscription data of the current network, and is responsible for terminal-to-network non-access layer signaling management, terminal security verification function, terminal mobility management, user idle mode tracking, and paging. Management functions and bearer management.

Serving GPRS support node, is a global mobile communication system (GSM, Global System for Mobile Communications), Enhanced Data Rate for GSM Evolution (EDGE), Radio Access Network (GERAN), Universal Mobile Telecommunications System (UMTS), Terrestrial Radio Access UTRAN (UMTS Terrestrial Radio Access Network), the service access point of the user accessing the core network, which is similar in function to the mobility management entity, and is responsible for location update, paging management, and bearer management of the user.

The service gateway is a gateway of the core network to the wireless system, and is responsible for the user plane bearer of the terminal to the core network, the data buffer in the terminal idle mode, the function of initiating the service request by the network side, the lawful interception and the packet data routing and forwarding function; It is also responsible for counting the use of the wireless network by the user terminal, and generating the CDR of the terminal using the wireless network, and transmitting it to the charging gateway.

The packet data gateway is a gateway of the evolved system and the external packet data network of the system, and is connected to the Internet and the packet data network, and is responsible for the Internet Protocol (IP) address allocation, charging function, packet filtering, and policy of the terminal. Control, etc.

The packet data network is the operator's IP service network, and the packet data network provides IP services to users through the operator's core network.

The policy charging rule function entity is a server in the evolved system responsible for providing charging control, online credit control, threshold control, and QoS (Quality of Service) policy rules.

The radio access network is composed of an evolved base station (eNB, Evolved NodeB) and a 3G radio network controller (RNC, Radio Network Controllor), and is mainly responsible for transmitting and receiving wireless signals, and communicating with the terminal through the air interface to manage radio resources of the air interface. , resource scheduling, and access control.

The service GPRS support node is an upgraded SGSN, which can support the S4 interface with the service gateway, and communicates with the mobility management unit by using GPRS Tunneling Protocol version 2 (GTPv2). For SGSN supporting 3G core network For example, the packet switching (PS, Packet Switching) domain network architecture is different from that of Figure 1. In this case, the SGSN and the MME are connected by Gn interface, and the interworking uses GPRS tunneling protocol version 1 (GTPvl, GPRS Tunneling Protocol version 1); Connected to the service gateway, the Gn interface needs to be connected to the Gateway GPRS Support Node (GGSN) to directly access the packet data network.

A home base station (HNB, Home NodeB) or an evolved home base station (HeNB, Home eNodeB) is a type of small, low-power base station that is deployed as a dedicated resource for certain users and deployed in private places such as homes, groups, companies, or schools. It is mainly used to provide users with higher service rates and reduce the cost of using high-rate services, while making up for the shortage of existing distributed cellular wireless communication systems. The advantages of home base stations are affordability, convenience, low power output, plug and play, broadband access, and the use of single mode terminals.

The home base station can be directly connected to the core network. FIG. 2 is a schematic group diagram of the wireless side network element accessing the core network in the prior art. As shown in FIG. 2( a ), the home base station can also use the home base station gateway as the logical network element. Accessing the core network, as shown in Figure 2 (b), the main function of the home base station gateway is to verify the security of the home base station, handle the registration of the home base station, perform operation and maintenance management on the home base station, and configure and control the home according to the operator's requirements. The base station is responsible for exchanging data of the core network and the home base station.

In order to implement local access functions (including Local IP Access (IPPA) or Selective IP Traffic Offload (SIPTO)), that is, terminals to other IP devices on the home network, IP devices in the enterprise network, or interconnections. Local access to the network, adding a local gateway, as shown in Figure 2 (a) and 2 (c); the addition of a local access gateway can provide strong support for local access technology, the local gateway can be combined with the wireless side network element The local gateway may include a local S-GW (L-SGW, Local SGW). ), local PGW (L-PGW, Local PGW), local GGSN (L-GGSN, Local GGSN), and external local GW (L-GW, Local GW) and so on.

In the mobile communication network architecture, for users who support local access, the data path accessed by the local network and the data path accessed by the traditional core network can be established at the same time. 3 is a schematic diagram of data paths of local access and traditional core network access in the prior art. As shown in FIG. 3, for a locally accessed connection, a local access data path is from a terminal to a wireless side network element to a local access gateway (L). -SGW, L-PGW and L-GGSN), data transmission does not pass through the core network. In order to achieve local access of the terminal to other IP devices or the Internet of the home network, two connections can be established. The first local access data path is used for direct access to the Internet (Internet IP connection, ie SIPTO connection), and the second local access The data path is used to directly access other IP devices on the home network (home network IP connection, ie LIPA connection).

In the prior art, the local access gateway is combined with the wireless side network element, and the mobility is not supported. This may cause the local service to be interrupted after the UE leaves the wireless side network element that establishes the local connection, resulting in a poor user experience. Therefore, the industry has begun to study how to ensure that the local service is continuous after the UE moves. That is, when the local gateway and the wireless side network element are separated, and there is an interface between them, a local access connection can also be established. To establish a local access connection, the wireless side network element and the local network gateway need to know each other's IP address, but there is currently no good solution to the problem. Summary of the invention

In view of this, the main purpose of the present invention is to provide a method and system for obtaining an IP address of a local gateway. The wireless side network element obtains an IP address of the local gateway through the wireless side network element management system.

In order to achieve the above object, the technical solution of the present invention is achieved as follows:

The present invention provides a method for obtaining an IP address of a local gateway, including:

The wireless side network element management system sends the IP address of the local gateway to the wireless side network element.

In the above method, the wireless side network element management system sends the IP address of the local gateway to the wireless side network element as:

The wireless side network element management system sends a parameter value setting request message to the wireless side network element, where Carry the IP address of the local gateway.

In the above method, before the wireless side network element management system sends the IP address of the local gateway to the wireless side network element, the method further includes:

After the power of the wireless network element is powered on, the wireless side network element management system is registered with the wireless side network element, and the wireless side network element identifier and the wireless side network element identifier are carried. The CSG ID or the APN and the correspondence between the local gateway and the wireless side network element, and the wireless side network element management system saves the information carried in the message.

In the above method, the correspondence between the local gateway and the radio side network element is: a correspondence between the local gateway identifier and the radio side network element identifier or the CSG ID or the APN.

The wireless side network element sends a request to the wireless side network element management system. After receiving the request, the wireless side network element management system sends the IP address of the local gateway to the wireless side network element.

In the above method, the radio side network element sends a request to the radio side network element management system. After receiving the request, the radio side network element management system sends the IP address of the local gateway to the radio side network element as:

The wireless side network element sends the request message to the wireless side network element management system;

The wireless side network element management system sends the IP address of the local gateway to the wireless side network element by using a response message or a parameter value setting request message.

In the above method, before the radio side network element sends the request message to the radio side network element management system, the method further includes:

After the local gateway is powered on, it registers with the wireless side network element management system, and the request message sends the IP address of the local gateway, the local gateway identifier, and the correspondence between the local gateway and the wireless side network element. The wireless side network element management system The information carried in the message is saved.

In the above method, the radio side network element management system sends the IP address of the local gateway by using a response message. The address sent to the wireless side network element is:

The wireless side network element management system queries the IP address of the local gateway according to the correspondence between the request message and the local storage;

The wireless side network element management system returns a response message to the wireless side network element, where the IP address of the local gateway is carried.

In the above method, the radio side network element management system sends the IP address of the local gateway to the radio side network element by using a parameter value setting request message:

The wireless side network element management system returns a response message to the wireless side network element;

The wireless side network element management system sends a parameter value setting request message to the wireless side network element, where the local gateway IP address is carried.

In the above method, the correspondence between the local gateway and the wireless side network element is:

In the above method, after the radio side network element management system sends the IP address of the local gateway to the radio side network element, the method further includes:

When the local gateway IP address is changed, the local gateway sends a notification request message to the wireless side network element management system, where the IP address of the local gateway and the local gateway identifier are carried;

The wireless side network element management system sends the IP address of the local gateway to the wireless side network element by using a parameter value setting request message.

The present invention also provides a system for obtaining an IP address of a local gateway, including: a radio side network element management system and a radio side network element;

The wireless side network element management system is configured to send the IP address of the local gateway to the wireless side network element, and the wireless side network element is configured to receive the IP address of the local gateway. In the above system, the radio side network element is further configured to send a request to the radio side network element management system.

The method and system for obtaining the IP address of the local gateway provided by the present invention, the wireless side network element management system sends the IP address of the local gateway to the wireless side network element, and the wireless side network element can obtain the local gateway through the wireless side network element management system. The IP address is used to make up the gap of the IP address of the local gateway in the prior art, so that when the local gateway and the wireless network element are separated, the local access connection can still be established. After the UE moves, it can still ensure the continuity of the local service, thus bringing a good user experience. DRAWINGS

1 is a schematic structural diagram of an evolved packet system in the prior art;

2 is a schematic diagram of a wireless side network element accessing a core network in the prior art;

3 is a schematic diagram of a data path of local access and traditional core network access in the prior art; intention; intention; intention;

FIG. 7 is a schematic structural diagram of a system for obtaining an IP address of a local gateway according to the present invention. detailed description

The basic idea of the present invention is: The wireless side network element management system sends the IP address of the local gateway to the wireless side network element.

The invention will be further described in detail below with reference to the drawings and specific embodiments.

The present invention provides a method for obtaining an IP address of a local gateway, the method comprising: a wireless side The network element management system sends the IP address of the local gateway to the wireless side network element.

The first embodiment is intended to be a method in which the local gateway first powers on and powers on, and the wireless side network element obtains the IP address of the local gateway when the wireless side network element is powered on. As shown in FIG. 4, the method includes the following steps:

Step 401: After the local gateway is powered on, register with the wireless side network element management system, and carry the request message with the IP address of the local gateway, the local gateway identifier, and the relationship between the local gateway and the wireless side network element.

Specifically, after the local gateway is powered on, registering with the wireless side network element management system, and sending a request message to the wireless side network element management system, the request message carries the IP address of the local gateway, the local gateway identifier, and the local gateway. Corresponding relationship between the wireless side network elements; wherein, the local gateway identifier may be a global domain name or an ID;

The corresponding relationship between the local gateway and the wireless side network element may be: a correspondence between the IP address of the local gateway or the local gateway identifier and the wireless side network element identifier or the APN or CSG ID, or the IP address of the local gateway and the local gateway. The correspondence between the identifiers.

Step 402: The wireless side network element management system locally stores the IP address of the local gateway, the local gateway identifier, and the correspondence between the local gateway and the wireless side network element.

Here, the wireless side network element management system has the function of a database, and thus can store the received IP address of the local gateway, the local gateway identifier, and the correspondence between the local gateway and the wireless side network element.

Step 403: After the radio network element is powered on, establish an IP layer security protocol (IPSec) tunnel with the radio side network element management system.

The wireless side network element may be a home base station, a macro base station, or a home base station gateway. The IP layer security protocol (IPSec) tunnel between the wireless side network element management system and the wireless side network element management system is established to implement the wireless side network element and the wireless side. Secure communication between network element management systems.

Step 404: Establish a TR-069 between the wireless side network element and the wireless side network element management system. CWMP session;

Specifically, on the basis of the established IP layer security protocol (IPSec) tunnel, the wireless side network element performs a query by using a domain name server (DNS) to obtain an address of the wireless side network element management system; the wireless side network element According to the address, a Customer Premise Equipment (CPE) TR-069 CPE WAN Management Protocol (CPE) session is established between the wireless side network element management system and the wireless side network element management system.

Step 405: The radio side network element sends a TR-069 notification request message to the radio side network element management system.

Specifically, after the TR-069 CWMP session is established, the radio side network element sends a TR-069 notification request message to the radio side network element management system, where the TR-069 notification request message carries the location parameter and the radio side network element. The identifier, and the local gateway identifier or the APN or the CSG ID. In addition, the identifier of the IP address of the local gateway may be carried. According to the identifier, the wireless side network element management system may know that the wireless side network element needs the IP address of the local gateway.

Here, if the corresponding relationship in step 401 is the IP address of the local gateway or the correspondence between the local gateway identifier and the radio side network element identifier, the local gateway identifier or the APN or CSG ID may not be carried, and the local gateway that must be carried The identifier or the APN or the CSG ID is determined by the information corresponding to the IP address of the local gateway or the local gateway representation in the correspondence in the step 401. For example, the correspondence between the local gateway and the wireless side network element is the local gateway. The mapping between the IP address and the APN, and the TR-069 notification request message carries the location parameter and the radio side network element identifier and the APN.

Step 406: The radio side network element management system queries the IP address of the local gateway according to the TR-069 notification request message and the locally saved correspondence relationship.

Specifically, after receiving the TR-069 notification request message of the radio side network element, the radio side network element management system uses the radio side network element identifier or the local gateway identifier or the APN or CSG ID carried in the TR-069 notification request message as an index. Corresponding to the locally saved local gateway and the wireless side network element Query the IP address of the corresponding local gateway in the system;

If the correspondence between the saved local gateway and the wireless side network element is a correspondence between the local gateway identifier and the radio side network element identifier or the APN or the CSG ID, the radio side network element carried in the request message may be notified according to the TR-069. The identifier or the APN or the CSG ID is queried to the corresponding local gateway identifier, and the local gateway identifier is used to find the IP address of the corresponding local gateway; if the relationship between the saved local gateway and the wireless side network element is the IP address of the local gateway and the local The corresponding relationship between the gateway identifier or the wireless side network element identifier or the APN or the CSG ID may be directly queried according to the TR-069 to the IP address of the corresponding local gateway.

The correspondence between the local gateway and the wireless side network element may also be pre-configured in the wireless side network element management system, or the local side gateway and the wireless side network element queried by the wireless side network element management system from some other location. .

Step 407: The radio side network element management system returns a TR-069 notification response message to the radio side network element, where the IP address of the local gateway is carried.

Specifically, after receiving the TR-069 notification request message, the radio side network element management system returns a TR-069 notification response message to the radio side network element, to notify the radio side network element that the radio side network element information has been accepted; The -069 notification response message carries the IP address of the queried local gateway.

Step 408: The radio side network element management system sends a TR-069 parameter value setting request message to the radio side network element, where the radio side network element parameter information is carried.

Specifically, the radio side network element management system sends a TR-069 parameter value setting request message to the radio side network element, where the radio side network element parameter information is carried; the radio side network element parameter information includes a radio configuration parameter, an S-GW address, and the like. .

Step 409: After receiving the TR-069 parameter value setting request message, the radio network element updates the local parameter configuration according to the radio side network element parameter information carried therein, and returns the TR-069 parameter value setting to the radio side network element management system. Response message. Step 410: The radio side network element initiates a termination process of the TR-069 CWMP session with the radio side network element management system, and releases the TR-069 CWMP session connection.

The second embodiment is intended to be a method in which the local gateway first powers on and powers on, and the wireless side network element obtains the IP address of the local gateway when the wireless side network element is powered on. As shown in FIG. 5, the method includes the following steps:

Step 501 to step 505 are the same as steps 401 to 405.

Step 506: The radio side network element management system returns a TR-069 notification response to the radio side network element. After receiving the TR-069 notification request message, the radio side network element management system returns a TR-069 notification to the radio side network element. The response message is used to notify the wireless side network element that the wireless side network element has been accepted. Step 507 is the same as step 406.

Step 508: The radio side network element management system sends a TR-069 parameter value setting request message to the radio side network element, where the radio side network element parameter information and the IP address of the local gateway are carried.

Specifically, the radio side network element management system sends a TR-069 parameter value setting request message to the radio side network element, where the radio side network element parameter information and the local gateway IP address are carried; the radio side network element parameter information includes the wireless configuration parameter. , S-GW address, etc.;

Here, since the IP address of the local gateway is not sent to the radio side network element in step 506, the IP address of the local gateway that must be carried here.

Steps 509 to 510 are the same as steps 409 to 410.

The third embodiment is intended to be a method in which the wireless side network element first powers on, and after the local gateway is powered on, or when the local gateway's IP address changes, the wireless side network element obtains the local gateway's IP address, as shown in FIG. 6. As shown, the method includes the following steps:

Step 601: After the wireless network element is powered on, register with the wireless side network element management system, and carry the request message of the wireless side to carry the correspondence between the wireless side network element identifier and the local gateway and the wireless side network element, or carry the wireless side. a network element identifier, a CSG ID, or an APN, and a correspondence between the local gateway and the wireless side network element;

Specifically, after the wireless network element is powered on, the wireless side network element management system is registered with the wireless side network element management system, and the request message is sent to the wireless side network element management system, and the request message carries the wireless side network element identifier and the local gateway and the wireless side network element. Corresponding relationship, or carrying the wireless side network element identifier, CSG ID or APN, and the corresponding relationship between the local gateway and the wireless side network element; in addition, the IP address request identifier of the local gateway may also be carried, and the wireless side network element management is performed according to the identifier The system can know that the wireless side network element needs the IP address of the local gateway;

The binding relationship between the local gateway and the wireless side network element may be: a local gateway identifier and a description between the local gateway and the wireless side network element, if the mapping between the local gateway and the wireless side network element is Corresponding relationship between the local gateway identifier and the CSG ID, if the corresponding relationship between the local gateway and the wireless side network element is the correspondence between the local side gateway and the wireless side network element. In addition, the message needs to carry the wireless side network element identifier and the corresponding relationship between the local gateway and the wireless side network element, and also needs to carry the CSG ID; if the correspondence between the local gateway and the wireless side network element is between the local gateway identifier and the APN Corresponding relationship, in addition to the correspondence between the wireless side network element identifier and the local gateway and the wireless side network element, the message needs to carry the APN.

Step 602: The wireless side network element management system locally stores the correspondence between the wireless side network element identifier and the local gateway and the wireless side network element, or the wireless side network element identifier, the CSG ID or the APN, and the correspondence between the local gateway and the wireless side network element. relationship.

Here, the wireless side network element management system has the function of a database, so it can save the received Corresponding relationship between the wireless side network element identifier and the local gateway and the wireless side network element, or the wireless side network element identifier,

Correspondence between the CSG ID or APN and the local gateway and the wireless side network element.

Step 603: After the local gateway is powered on or the IP address of the local gateway is changed, the local gateway sends a message to the radio side network element management system, where the IP address of the local gateway and the local gateway label are only used;

Specifically, when the local gateway is powered on, when registering with the wireless side network element management system, or when the IP address of the local gateway is changed, the local gateway needs to send a message to the wireless side network element management system; wherein, the message carries the local The IP address of the gateway and the local gateway ID.

Step 604: The radio side network element management system queries the wireless side network element according to the message sent by the local gateway and the locally saved relationship.

Specifically, after receiving the message sent by the local gateway, the wireless side network element management system uses the local gateway identifier carried in the message as an index, and the locally saved local gateway and the wireless side network element pair if the local gateway and the wireless side are saved. The corresponding relationship between the network element is a correspondence between the local gateway identifier and the wireless side network element identifier, and the local side gateway identifier may be directly queried according to the message, and the wireless side network element identifier corresponding to the local gateway identifier may be directly queried; The mapping between the local gateway and the wireless side network element is a mapping between the local gateway identifier and the APN or the CSG ID, and the APN or CSG ID corresponding to the local gateway identifier may be queried according to the local gateway identifier carried in the message. And then, according to the APN or the CSG ID, the identifier of the wireless side network element that is sent together with the APN or the CSG ID in the message sent by the wireless side network element is queried;

After the wireless side network element identifier is queried, the corresponding wireless side network element can be determined according to the wireless side network element identifier, and the IP address of the local gateway is sent to the wireless side network element.

Step 605: The radio side network element management system establishes a TR-069 CWMP session with the radio side network element.

Specifically, the wireless side network element management system queries the wireless according to the locally saved correspondence relationship. The address of the radio network element corresponding to the radio side network element identifier is obtained by the DNS query, and the address of the radio side network element corresponding to the radio side network element identifier is obtained according to the radio network element identifier that is queried in step 605; The address, the radio side network element management system can establish a TR-069 CWMP session with the radio side network element.

Step 606: The radio side network element management system sends a TR-069 parameter value setting request message to the radio side network element, where the radio side network element parameter information and the IP address of the local gateway are carried.

Specifically, the wireless side network element management system sends a TR-069 parameter value setting request message to the wireless side network element corresponding to the queried wireless side network element identifier, where the wireless side network element parameter information and the IP address of the local gateway are carried; The wireless side network element parameter information includes a wireless configuration parameter, an S-GW address, and the like;

Here, the IP address of the local gateway is sent by the local gateway to the radio side network element management system; the IP address of the local gateway is sent to the radio side network element together with the radio side network element parameter information, and the radio side network element management system can be implemented according to The corresponding relationship sends the received IP address of the local gateway to the corresponding wireless side network element.

Step 607: After receiving the TR-069 parameter value setting request message, the radio side network element updates the local parameter configuration according to the radio side network element parameter information carried therein, and returns the TR-069 parameter value setting to the radio side network element management system. Response message.

Step 608: The radio side network element initiates a termination process of the TR-069 CWMP session with the radio side network element management system, and releases the TR-069 CWMP session connection.

In the embodiment of the present invention, the local gateway IP address may be the same IE as the wireless side network element parameter information, or may be implemented by adding an IE.

In the embodiment of the present invention, the TR-069 notification response message and the TR-069 parameter setting request message are used to carry the IP address of the local gateway, but the message carrying the IP address of the local gateway may not be limited to the two messages, the local gateway The IP address can also be carried by a message having similar functions to the two messages, or by extending a new message. To achieve the above method, the present invention further provides a system for obtaining an IP address of a local gateway, and FIG. 7 is a schematic structural diagram of a system for obtaining an IP address of a local gateway according to the present invention. As shown in FIG. 7, the system includes: a network element management system 71 and a wireless side network element 72;

The wireless side network element management system 71 is configured to send the IP address of the local gateway to the wireless side network element.

72;

The wireless side network element 72 is configured to receive an IP address of the local gateway.

The wireless side network element 72 is further configured to send a request to the wireless side network element management system 71. After the power of the wireless network element is powered on, the wireless side network element management system is registered with the wireless side network element, and the wireless side network element identifier and the wireless side network element identifier are carried. The CSG ID or APN and the correspondence between the local gateway and the wireless side network element, the wireless side network element management system saves the information carried in the message; when the local gateway is powered on or the local gateway's IP address changes, the local gateway goes to the wireless The side network element management system sends a message, which carries the IP address of the local gateway and the local gateway identifier; the wireless side network element management system queries the wireless side network element according to the message sent by the local gateway and the corresponding relationship; The management system establishes a TR-069 CWMP session with the wireless side network element. The wireless side network element management system sends a parameter value setting request message to the wireless side network element, where the wireless side network element parameter including the IP address of the local gateway is carried. information.

The corresponding relationship between the local gateway and the wireless side network element is: a correspondence between the local gateway identifier and the radio side network element identifier or the CSG ID or the APN.

Or, the wireless side network element management system 71 sends the IP address of the local gateway to the wireless side network element 72: The wireless side network element sends a request to the wireless side network element management system, and after receiving the request, the wireless side network The meta management system sends the IP address of the local gateway to the wireless side network element;

The radio side network element 72 sends a request to the radio side network element management system 71. After receiving the request, the radio side network element management system 71 sends the IP address of the local gateway to the radio side network element 72. After the local gateway is powered on, it is registered with the wireless side network element management system, and the request message sent carries the IP address of the local gateway, the local gateway identifier, and the correspondence between the local gateway and the wireless side network element, and the wireless side network element The management system saves the information carried in the message; after the wireless network element is powered on, establishes an IP layer security protocol (IPSec) tunnel and a client equipment (CPE) wide area network management protocol between the wireless side network element management system ( TR-069 CWMP) session; the radio side network element sends a notification request message to the radio side network element management system; the radio side network element management system sends the IP address of the local gateway to the radio side through a notification response message or a parameter value setting request message. Network element

The radio side network element management system 71 sends the IP address of the local gateway to the radio side network element 71 by using the notification response message. The radio side network element management system queries the IP address of the local gateway according to the correspondence between the notification request message and the locally saved relationship. The wireless side network element management system returns a notification response message to the wireless side network element, which carries the IP address of the local gateway; the wireless side network element management system sends a parameter value setting request message to the wireless side network element, where the wireless side network is carried. The radio side network element management system 71 sends the IP address of the local gateway to the radio side network element 72 through the parameter value setting request message: the radio side network element management system returns a notification response to the radio side network element. The wireless side network element management system queries the IP address of the local gateway according to the notification request message and the locally saved correspondence relationship; the wireless side network element management system sends the parameter value setting request message to the wireless side network element, where the wireless side network is carried. Meta parameter information and the IP address of the local gateway.

The correspondence between the local gateway and the wireless side network element is: the correspondence between the IP address of the local gateway or the local gateway identifier and the wireless side network element identifier or the APN or CSG ID, or the IP address of the local gateway and the local gateway identifier. Correspondence between them.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included. Within the scope of protection of the present invention.

Claims

Claim

A method for obtaining an IP address of a local gateway, the method comprising: the wireless side network element management system transmitting the IP address of the local gateway to the wireless side network element.

The method according to claim 1, wherein the radio side network element management system sends the IP address of the local gateway to the radio side network element as:

The wireless side network element management system sends a parameter value setting request message to the wireless side network element, where the IP address of the local gateway is carried.

The method according to claim 1, wherein the method further includes: before the wireless side network element management system sends the IP address of the local gateway to the wireless side network element, the method further includes:

The method according to claim 3, wherein the correspondence between the local gateway and the radio side network element is: a correspondence between the local gateway identifier and the radio side network element identifier or the CSG ID or the APN.

The method according to claim 5, wherein the radio side network element sends a request to the radio side network element management system, and after receiving the request, the radio side network element management system sets the IP address of the local gateway. The network element sent to the wireless side is:

The wireless side network element management system sets the request message to the local gateway through a response message or a parameter value. The IP address is sent to the wireless side network element.

The method according to claim 6, wherein the method further includes: before the sending, by the wireless side network element, the request message to the wireless side network element management system, the method further includes:

The method according to claim 6, wherein the radio side network element management system sends the IP address of the local gateway to the radio side network element by using a response message:

The method according to claim 6, wherein the radio side network element management system sends the IP address of the local gateway to the radio side network element by using a parameter value setting request message: The wireless side network element returns a response message;

The method according to any one of claims 7 to 9, wherein the correspondence between the local gateway and the radio side network element is: an IP address of the local gateway or a local gateway identifier and a radio side network element identifier or The correspondence between the APN or CSG ID, or the relationship between the IP address of the local gateway and the local gateway identifier.

The method according to claim 1, wherein, after the radio side network element management system sends the IP address of the local gateway to the radio side network element, the method further includes: When the local gateway IP address is changed, the local gateway sends a notification request message to the wireless side network element management system, where the IP address of the local gateway and the local gateway identifier are carried;

12. A system for obtaining an IP address of a local gateway, where the system includes: a radio side network element management system and a radio side network element;

The wireless side network element management system is configured to send the IP address of the local gateway to the wireless side network element, and the wireless side network element is configured to receive the IP address of the local gateway.

13. The system of claim 12, wherein

The wireless side network element is further configured to send a request to the wireless side network element management system.