CN1717106A - Network side activation method for reducing user redundant data in mobile communication network - Google Patents

Abstract

This invention relates to a network side activation method for reducing user redundant data in mobile communication, which increases signaling between Gc interfaces of GGSN and HLR to get the MS information requirement and MS information response, if GGSN does not support the Gc interface, the signaling interacts between GGSN and MAP GSN by the communication of MPN GSN and HLR. When the GGSN trigger network side is activated and needs to look for the corresponding IMSI user information of the MS IP, the GGSN sends the signaling to HLR carrying the MS IP, HLR feeds back the result to GGSN based on the related user information inquired by MS IP GGSN continues the PDP activation flow.

Description

Network side activation method for reducing user redundant data in mobile communication network

Technical Field The present invention relates to a method for network-side activation of a mobile phone in a mobile communication network, and in particular to a method for network-side activation of a mobile phone in a second- and third-generation mobile communication network.

Background Art Mobile digital communication is one of the hottest and fastest-growing fields today. The third-generation mobile communication system provides users with a communication speed up to 2Mbits/s. Users can access the Internet conveniently and quickly anytime, anywhere, and enjoy The convenience brought by modern information technology to people.

Users use mobile digital communication mostly to obtain information from various servers, but there are still some users who want to serve as servers to provide information to others. Although there are still relatively few users with such requirements, they are generally very important. For example, when a disaster occurs, the disaster site may need to build some kind of data server for disaster relief, but the wired network on site may have been destroyed, and even the power supply may have problems. At this time, using a laptop and a mobile phone to implement the server is Very realistic choice. When the mobile digital communication business becomes more and more popular in the future, it can be predicted that there will be more and more applications of this kind.

In order to realize this application, the mobile digital communication network must provide the user as a server with the ability to be accessed, which is similar to the called party in the mobile voice service, and must be able to be paged by the network system. The current 2.5G/3G mobile communication systems are all realized through network side PDP (Packet Data Protocol, packet data protocol) activation: when GGSN (Gateway GPRS Support Node, GPRS gateway support node) receives a T-PDU (Transmission-Packet Data Unit, when transmitting a packet data unit), query whether there is a corresponding GTP PDP Context (GPRS Tunnel Protocol PDPContext, GPRS Tunnel Protocol PDP Context) according to the destination address MS IP (Mobile Subscriber Internet Protocol Address, mobile user address) of the data packet Exist, if there is, encapsulate the data packet into G-PDU (GPRS-Packet Data Unit, GPRS packet data unit) and forward it to SGSN (Serving GPRS Support Node, GPRS service support node) through the GTP tunnel, if it does not exist in GGSN For the corresponding GTP PDP Context, query the GGSN local database according to the MS IP to see if there is an IMSI (International Mobile Subscriber Identity) corresponding to the MS IP, so as to decide whether to initiate the PDP activation process on the network side. Since GGSN receives PDN (Packet DataNetwork, Packet Data Network) data packets, IP addresses are mostly used for addressing, and the user identifier brought by GGSN when initiating the network side activation process in GPRS network is IMSI, so GGSN must maintain MSIP locally. ----- The database of IMSI, and the MS IP is a static IP that is uniformly assigned to the user by the operator when the user signs up with the UE (User Equipment, user equipment).

The PDP activation on the network side must use a static IP address. When opening an account, the user can apply for a public static IP from the operator. Of course, additional fees are required. The user's information and public static IP will be registered in the HLR (Home Location Register , Home Location Register), and configure it in the GGSN at the same time, the user can use this IP to access the Internet in the future, and various applications on the network can also access the user through this IP. Since there is no corresponding signaling between the GGSN and the HLR to transmit these information, the user needs to manually add the information to the GGSN after opening an account in the HLR, and in many cases the physical distance between the GGSN and the HLR is very far, and the user needs to manually add the information to the GGSN. It is inconvenient and error-prone to obtain user-related information through other channels such as telephone, email, etc. and then register in GGSN.

SUMMARY OF THE INVENTION The purpose of the present invention is to provide a method to establish a transmission mechanism for user information between GGSN and HLR, so as to overcome the redundant storage of user information such as user static IP addresses in the current mobile data service in HLR and GGSN. Data maintenance is both inconvenient and error-prone, through this method such data will only be stored in one HLR.

The technical solution for realizing the present invention is: a kind of interface between GGSN and HLR utilizing Gc interface or GGSN and MAP GSN (Mobile Application Protocol GPRS Support Node, mobile application protocol GPRS support node), expanding the signaling activated by the network side, A method for reducing redundant data, comprising the following steps:

(1) When the GGSN triggers the activation of the packet data protocol on the network side and needs to find the IMSI user information corresponding to the mobile user address, the GGSN sends a signaling to the HLR through the Gc interface between the GGSN and the HLR, or through the interface between the GGSN and the MAP GSN Get the MS information request, the signaling carries the mobile user address;

(2) HLR inquires corresponding subscriber information according to mobile subscriber address, and query result obtains MS information response and returns to GGSN through signaling;

(3) GGSN continues the corresponding network-side packet data protocol activation process according to the returned result: if the IMSI information corresponding to the mobile subscriber address is found, then continue to send the general packet radio service routing information request and packet data unit notification request signaling process.

The network-side activation method for reducing user redundant data proposed by the present invention enables the user static data stored in two places in the original HLR and GGSN to be stored in only one HLR through the extended signaling interaction between the GGSN and the HLR, which is different from the usual Compared with the traditional processing method, it can reduce user redundant data, reduce the workload of system maintenance, and reduce the probability of error, as well as various disadvantages caused by it.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a flow chart of the present invention to realize PDP activation on the network side.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS With reference to the accompanying drawings, an example will be given to illustrate an embodiment in which the method provided by the present invention is used to activate network-side PDP and reduce user redundant data in a GPRS mobile communication system.

1) The relevant information of the user is stored in the HLR of the GPRS system, including IMSI, the static IP of the user's contract, APN (Access Point Name, access point name) and so on. HLR uses MSIP as the key value to create an index, which is convenient for the network side activation process to obtain the user's IMSI according to the MS IP. For example, if the user's IMSI is 460007114907474, and the subscribed static IP is 202.1.1.5, an index table with 202.1.1.5 as the key value to query 460007114907474 is established in the HLR. When a T-PDU arrives at the GGSN, the GGSN judges whether the PDP context corresponding to the PDU exists, if not, then judges whether the MS IP belongs to the user static address network segment (the user static address segment supported by an office is determined during network planning) Already assigned, need to be configured in GGSN, the user's downlink data is also routed to the home GGSN according to this), if so, then proceed to the network side PDP activation of the next step, a process in Fig. 1. For example, when GGSN receives a data packet with a destination address of 202.1.1.5 and cannot find the corresponding PDP context, it needs to first determine whether this address falls within the static address range supported by GGSN, and if so, proceed to the subsequent network side activation process. Otherwise, the packet is discarded directly.

2) GGSN sends Get Ms Information Request signaling to HLR, and the IP information of the user is carried in the message body, that is, 202.1.1.5, and requests HLR to judge whether the MS IP is valid and returns user IMSI and other information. After HLR receives the signaling, it MS IP (202.1.1.5) inquires whether there is a corresponding subscriber, if yes, returns the reason value as Accept, and carries its corresponding IMSI (460007114907474) in the corresponding message body cell, if not, returns the reason value as Failure . The Response of the HLR is Get Ms Information Ack, and the process is shown in Figure 1 b process. GGSN can choose to cache the user information and delete it after a certain period of time. It is similar to the Catche table (quick index table) of ARP (Address Resolution Protocol) to reduce the interaction between GGSN and HLR and improve the processing efficiency of the system.

3) The GGSN decides whether to continue the PDP activation process on the network side according to the result returned by the HLR, as shown in process c in Figure 1 . Subsequent procedures are the same as those described in 3GPP 29060 and will not be repeated here.

4) The GGSN does not need to store the static user data existing in the HLR.

The above-mentioned increased signaling between GGSN and HLR can also be sent by expanding Send Routing Information for GPRS Request and Send Routing Information for GPRS Response signaling cells way to achieve.

The above-mentioned embodiment is only an illustrative description of the method of the present invention, and the idea proposed by the method of the present invention is not limited to a specific signaling form. Various modifications can be made by those skilled in the art without departing from the spirit and scope of the invention. But all equivalent changes and modifications are within the scope defined by the claims of the present invention.

Claims (5)

1. A network side activation method for reducing user redundant data in a mobile communication network, characterized in that, comprising the following steps: (1) When the GPRS gateway support node GGSN triggers the activation of the packet data protocol on the network side and needs to search for the IMSI user information corresponding to the mobile subscriber address, the GGSN passes the Gc port between the GGSN and the home location register HLR, or through the GGSN and the home location register HLR. The interface between the mobile application protocol GPRS support node MAP and GSN sends a signaling to the HLR to obtain a mobile user information request, and the signaling carries the mobile user address; (2) HLR queries corresponding subscriber information according to mobile subscriber address, and query result obtains mobile subscriber information response and returns to GGSN through signaling; (3) GGSN continues the corresponding network-side packet data protocol activation process according to the returned result, and if the IMSI information corresponding to the mobile subscriber address is found, then continue to send the general packet radio service routing information request and packet data unit notification request signaling process. 2. the method for reducing the network side activation of user redundant data according to claim 1 is characterized in that: the signaling that increases between GGSN and HLR can send GPRS route information request, send GPRS by expanding Routing information is implemented in the form of signaling cells. 3. The network-side activation method for reducing user redundant data according to claim 1, characterized in that: if the IMSI corresponding to the mobile user address cannot be found in the step (3), then the user's IMSI is discarded At this time, the GGSN needs to implement a corresponding protection strategy to avoid excessive interaction of signaling between the GGSN and the HLR. 4. The method for reducing the network side activation of user redundant data according to claim 1, characterized in that: the IMSI of the user inquired in the step (1) is set up in the HLR by querying the mobile user address as the key An indexed table implementation of values. 5. The method for activating the network side of reducing user redundant data according to claim 1, wherein it is characterized in that: first judge whether the packet data protocol context corresponding to the transmission packet data unit exists, if not, then judge the mobile user Whether the address belongs to the network segment of the user's static address, and if so, activate it on the network side.