CN101360094B - A method for automatic discovery of home base station configuration server - Google Patents

Abstract

A method for automatically discovering a home base station configuration server comprises the steps of firstly defining an option 60 and an option 43 in a dynamic host allocation protocol server; when the femtocell is powered on or reset and restarted, sending a DHCPINFORM message carrying an option 60 to the dynamic host allocation protocol server, and after receiving the DHCPINFORM message, the dynamic host allocation protocol server sends corresponding network connection information to the femtocell through an option 43; and finally, after acquiring the network connection information according to the option 43, the home base station initiates an IPSec secure channel establishment request to the security gateway, and the security gateway resolves the IP address of the home base station configuration server through the obtained complete domain name of the home base station configuration server and returns the IP address to the home base station to complete the automatic discovery of the home base station configuration server. The invention solves the problems that the current equipment is the Home NodeB burning network information when leaving the factory, and all affected Home NodeBs must be modified if the network structure is adjusted, so the flexibility is low and the cost is high.

Description

A method for automatic discovery of home base station configuration server

technical field

The present invention relates to the field of mobile communication, and more specifically relates to a method for automatic discovery of a home base station configuration server. the

Background technique

The 3G industry is gradually developing toward the refinement of user needs. In addition to the traditional macro base station and micro base station products, the new generation of base station products that meet the specific needs of operators is gradually becoming an effective means for equipment manufacturers to strengthen their product competitiveness. With the rollout of 3G networks all over the world, operators realize that indoor coverage is an extremely critical and important link in the construction of 3G networks. In this context, the Home NodeB (family base station) solution came into being. It is designed for the characteristics of indoor family communication, and achieves indoor coverage based on the family unit through the Home NodeB equipment placed in the user's home. This solution integrates the home network into the UMTS network. As an extension of the 3G network, each Home NodeB is similar to a simplified small microcell, and provides any type of cellular network through a dedicated 3G access channel (WCDMA or HSDPA). Services, such as voice, Internet access, downloads, Internet TV, etc. Therefore, the Home NodeB home access method is conducive to the indoor broadband application of multiple terminals such as mobile phones and PCs. The entry method has its unique charm for both operators and users. In the future evolution of 3G networks, Home NodeB products will play an important role in indoor coverage and access. the

As shown in Figure 1, the current Home NodeB access solution is generally implemented based on the traditional architecture with RNC (DNC Domestic Network Controller) network elements. The Home NodeB device is placed in the user's home to achieve indoor coverage based on the family. It accesses the ISP network through xDSL and connects to the DNC through the standard Iub interface. The DNC connects to the CN through the standard Iu CS/PS interface. the

In the networking of Home NodeB, HCS (Home NodeB Configuration Server, home base station configuration server) assumes the core of network management, and it is the key to realize self-configuration and self-optimization goals of home base station self-organizing network. In a networking, the network covers many areas, and there are at least one or more HCSs in these areas. As the core platform of network services, HCS is responsible for authorizing which Home NodeBs can join the network, which users belong to which Home NodeB, and providing initial configuration data and software/firmware image information for Home NodeBs, so HomeNodeBs are providing business services Before, it was necessary to search for the corresponding HCS first, otherwise it would be impossible to run on the network. the

The most direct way to discover HCS is to burn the network information for the Home NodeB when the device leaves the factory, including the IP address, service port or URL, and the network connection is solidified in the Home NodeB. The implementation mechanism of this method is relatively simple, but there are The fatal disadvantage is that when the network structure is adjusted, all affected Home NodeBs must be modified, which is low in flexibility and expensive. the

To sum up, there is currently a need for a technical solution for how to automatically discover and configure servers in a home base station network. the

Contents of the invention

The technical problem to be solved by the present invention is to provide a method for automatic discovery of home base station configuration servers, which solves the problem of burning network information for Home NodeB when the current equipment leaves the factory. If the network structure is adjusted, all affected Home NodeBs must be Modification, low flexibility, expensive problem. the

In order to solve the above problems, the present invention provides a method for automatic discovery of a home base station configuration server, including the following steps,

a: Define option 60 and option 43 in the Dynamic Host Allocation Protocol server;

b: After the home base station is powered on or reset and restarted, it sends a DHCPINFORM message carrying option 60 to the DHPA server, and the DHPA server sends the corresponding network connection information to the home base station through option 43 after receiving the DHCPINFORM message;

c: After the home base station obtains the network connection information according to option 43, it initiates an IPSec security channel establishment request to the security gateway to obtain the complete domain name of the home base station configuration server, and the security gateway resolves the IP address of the home base station configuration server through the complete domain name of the home base station configuration server The address is returned to the home base station to complete the automatic discovery of the home base station configuration server. the

Further, the above method may further include, in the step a, the defining option 60 includes setting the VCI of the option 60 . the

Further, the above method may further include, in the step a, the defining option 43 includes defining an option space of the home base station, defining sub-options and formats of sub-options in the option space, defining values for the sub-options, And match the VCI set by option 60. the

Further, the above method may further include that the sub-options include: the IP address of the security gateway, the complete domain name of the home base station configuration server, and the service port provided by the home base station configuration server. the

Further, the above method may further include, in the step b, the DHCPINFORM message carries an option 60, and the content includes the VCI text string Home NodeB. the

Further, the above method may also include, in the step b, after the DHCP server receives the DHCPINFORM message, it finds the VCI text string Home NodeB, searches for the matching vendor-defined information, sends a DHCPACK message, and passes the option 43 Send corresponding network connection information to the home base station. the

Further, the above method may further include that the network connection information includes: the IP address of the security gateway, the complete domain name of the home base station configuration server, and the service port provided by the home base station configuration server. the

Further, the above method may further include, the step c also includes, after the home base station initiates an IPSec security channel establishment request to the security gateway, completes the establishment of the IPSec security channel, and the home base station configures the server complete domain name according to the obtained home base station , initiate a class A domain name server query to the security gateway, and the security gateway resolves its IP address through the complete domain name of the home base station configuration server and returns it to the home base station. the

Further, the above method may further include, in the step c, the security gateway resolves the service port of the home base station configuration server through the complete domain name of the home base station configuration server and returns it to the home base station. the

Further, the above method may further include that step c further includes, after the home base station obtains the IP address and service port of the home base station configuration server, initiates subsequent configuration updates or software/firmware upgrades to the home base station configuration server ask. the

Compared with prior art, application of the present invention has the following advantages:

1. After the Home NodeB leaves the factory, it does not need to burn any preset network connection information, so as to avoid the cost burden caused by having to burn again when the solidified information needs to be modified;

2. Since the IP addresses of SGW and HCS are dynamically allocated by the third-party network service, when the SGW and HCS are overloaded or the equipment fails, the IP address can be dynamically changed to achieve the purpose of flexibly adjusting the network architecture. the

Description of drawings

Figure 1 is a structural diagram of the network architecture of the Home NodeB home base station network;

Fig. 2 is a flow chart of a method for automatic discovery of a home base station configuration server in a specific embodiment of the present invention;

Fig. 3 is a schematic diagram of a service flow of HCS automatic discovery in a specific embodiment of the present invention. the

Detailed ways

The specific embodiments of the present invention will be further described below in conjunction with the accompanying drawings. the

Home NodeB does not burn any preset network connection information when it leaves the factory. In order for Home NodeB to automatically discover the IP address and service port of HCS through other network services without knowing the specific location (IP address) of HCS , such as DHCP (Dynamic Host Assignment Protocol) server and DNS (Domain Name Server), as shown in Figure 2, the specific steps are as follows,

Step 110: On the provided DHCP server, define option 60 and option 43;

The DHCP RFC2132 protocol defines two vendor-defined options: option 60 (VCI: VendorClass Identifier) and option 43 (Vendor Specific Information), option 60 is a vendor classification identifier, which uniquely identifies a type of vendor device in a text string ; Option 43 provides vendor-defined information in accordance with the format block of Type-Length-Value (TLV). the

Using Option 60 and Option 43 together allows manufacturers to define sub-options according to their own business requirements, and package these sub-options into a standard DHCP option. the

The definition option 60 includes the VCI of the setting option 60;

option 60 ascii "Home NodeB". the

The setting definition option 43 includes defining the option space of the Home NodeB, defining the sub-option and its format in the option space, defining the value for the sub-option, and matching the VCI set by the option 60. the

The sub-option information includes at least: the IP address of the SGW (Security Gateway, security gateway), the full domain name (FQDN) of the HCS, and the service port provided by the HCS. the

1. Define the option space of Home NodeB;

option space SON. the

2. Define the sub-option and its format in the option space. The sub-option information includes at least: the IP address of the SGW, the full domain name (FQDN) of the HCS, and the port where the HCS provides services;

option SON.SGW-SERVER-ADDRESS code 2 = ip-address;

option SON.HCS-SERVER-NAME code 3 = text;

option SON.HCS-SERVER-PORT code 4 = uint16. the

3. Define the value for the sub-option and match the VCI defined in option 60. the

class "Home NodeB" {

match if option vendor-class-identifier = "Home NodeB";

option SON.SGW-SERVER-ADDRESS 192.168.10.1;

option SON.HCS-SERVER-NAME "hcs.son.org";

option SON.HCS-SERVER-PORT 8080;

}. the

Step 120: After the Home NodeB is powered on or reset and restarted, send a DHCPINFORM message carrying option 60 to the DHCP server;

The DHCPINFORM message carries option 60, and its content includes the VCI text string "HomeNodeB". the

Step 130: After receiving the DHCPINFORM message, the DHCP server sends the corresponding network connection information to the Home NodeB through option 43;

When the DHCP server receives the DHCPINFORM message, it finds the recognizable VCI text string "Home NodeB", searches for the matching vendor-defined information, sends a DHCPACK message, and informs the Home NodeB of the corresponding network connection information through option 43, including: SGW The IP address, the full domain name (FQDN) of the HCS, and the port on which the HCS provides services. the

Step 140: Home NodeB sets network connection information to local cache according to option 43;

Step 150: After the Home NodeB obtains the network connection information, it initiates an IPSec secure channel establishment request to the SGW to obtain the complete domain name of the HCS, and the SGW resolves the IP address and service port of the HCS through the complete domain name of the HCS and returns them to the Home NodeB;

After completing the establishment of the IPSec security channel, the Home NodeB initiates a Class A DNS query to the SGW according to the obtained HCS full domain name, that is, resolves its IP address and service port through the HCS full domain name and returns it to the Home NodeB to complete the automatic HCS discovery process. the

Step 160: After the Home NodeB obtains the IP address and service port of the HCS, it can initiate a subsequent configuration update or software/firmware upgrade request to the HCS. the

The present invention will be further described below in conjunction with specific examples. the

Figure 3 describes the process of HCS automatic discovery, the specific steps are as follows,

xDSL (Digital Subscriber Line) is a combination of transmission technologies based on copper telephone lines as the transmission medium. It includes HDSL, SDSL, VDSL, ADSL and RADSL, etc., and is generally called xDSL. As a transport layer technology, xDSL utilizes existing copper wire resources to provide high-speed broadband access for Home NodeB. the

And DSLAM (Digital Subscriber Line Access Multiplexer, digital subscriber line access multiplexer), which receives signals from multiple xDSL connections and converts them to a high-speed line, has the ability to optimize bandwidth utilization and flow control. the

SGW (Security Gateway, Security Gateway) is deployed as a VPN (Virtual Private Network) gateway at the front end of the Internet. It has the function of a router itself, and it is an important portal to protect the internal network security of the Home NodeB. It is mainly responsible for preventing hackers from invading, checking for viruses, identity authentication and permission checking and other security responsibilities. the

As the core device of self-organizing network, HCS (Home NodeB Configuration Server) device provides services such as self-configuration, self-optimization and automatic update for Home NodeB. the

Step 1. After the xDSL is powered on or reset, it obtains a legal public IP address from the DSLAM;

Step 2. After Home NodeB is powered on or reset, xDSL assigns an internal IP address to Home NodeB. xDSL acts as a NAT gateway (Network Address Translation) to provide Home NodeB with network address translation services and transfer its internal private IP address to Home NodeB. Convert to a legal public IP address;

Step 3. Before starting the business service, Home NodeB first initiates a DHCPINFORM request message to the DHCP service on the DSLAM. The message carries option 60, and the content is the VCI text string "Home NodeB";

Step 4. After receiving the DHCPINFORM request, the DHCP service finds that there is a recognizable VCI text string "Home NodeB" in option 60, sends a DHCPACK response to Home NodeB, and returns custom information through option 43, including at least:

SGW-IP-ADDRESS: #IP address of the SGW security gateway

HCS-SERVER-NAME: full domain name of #HCS

HCS-SERVER-PORT: #HCS service port

Step 5. After the Home NodeB obtains the IP address of the SGW, it can initiate an IPSec channel establishment request with the SGW;

Step 6. After the establishment of the IPSec channel is completed, the Home NodeB initiates a type A DNS query to the SGW with the assigned URL;

Step 7. The SGW performs DNS resolution and returns the reachable HCS IP address to the Home NodeB;

Step 8: The Home NodeB completes the automatic discovery process of the HCS, and can initiate configuration data or software/firmware update requests according to the IP address and service port of the HCS. the

The above is only a preferred embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person familiar with the technology can easily think of changes or replacements within the technical scope disclosed in the present invention. , should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the protection scope of the claims. the

Claims (10)

1. the method for a server automatic discovery configuring by house base station is characterized in that, may further comprise the steps,

A: definition option 60 and option 43 in the dynamic host allocation protocol server;

B: Home eNodeB power on or reset restart after; Send the DHCPINFORM message of carrying option 60 to the dynamic host allocation protocol server; After the dynamic host allocation protocol server is received DHCPINFORM message, send corresponding network connection information to Home eNodeB through option 43;

C: after Home eNodeB obtains network connection information according to option 43; Initiate the Fully-Qualified Domain Name that the request of setting up of ipsec security passage obtains family base station configuration server to security gateway; Security gateway parses the IP address of this family base station configuration server and returns to Home eNodeB through the Fully-Qualified Domain Name of family base station configuration server, accomplishes the automatic discovery of family base station configuration server.

2. the method for claim 1 is characterized in that, among the said step a, said definition option 60 comprises the VCI that option 60 is set.

3. method as claimed in claim 2; It is characterized in that; Among the said step a; Said definition option 43 comprises the option space that defines Home eNodeB, the form of definition sub-option and sub-option in said option space, for said sub-option definition value and and the VCI that is provided with of said option 60 be complementary.

4. method as claimed in claim 3 is characterized in that, said sub-option comprises: the port that the IP address of security gateway, the Fully-Qualified Domain Name of family base station configuration server and family base station configuration server provide service.

5. the method for claim 1 is characterized in that, among the said step b, said DHCPINFORM message is carried option 60, and content comprises VCI text string Home NodeB.

6. method as claimed in claim 5; It is characterized in that, among the said step b, after said dynamic host allocation protocol server is received DHCPINFORM message; Find VCI text string Home NodeB; Search manufacturer's self-defined information of coupling, send DHCPACK message, send corresponding network connection information to Home eNodeB through option 43.

7. method as claimed in claim 6 is characterized in that, said network connection information comprises: the IP address of security gateway, and the Fully-Qualified Domain Name of family base station configuration server, and family base station configuration server provides the port of service.

8. the method for claim 1; It is characterized in that, also comprise among the said step c that said Home eNodeB is after security gateway is initiated ipsec security passage foundation request; Accomplish the foundation of ipsec security passage; Home eNodeB is initiated the name server inquiry of category-A according to the family base station configuration server Fully-Qualified Domain Name that obtains to security gateway, and security gateway parses its IP address and returns to Home eNodeB through the Fully-Qualified Domain Name of said family base station configuration server.

9. method as claimed in claim 8 is characterized in that, among the said step c, said security gateway also parses the serve port of family base station configuration server and returns to Home eNodeB through the Fully-Qualified Domain Name of family base station configuration server.

10. method as claimed in claim 9; It is characterized in that, further comprise among the said step c, after said Home eNodeB obtains the IP address and serve port of family base station configuration server; Initiate config update subsequently, perhaps software/firmware upgrade request to family base station configuration server.

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