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A device positioning method and system

A positioning method and equipment technology, applied in the field of communication, can solve problems such as low query efficiency and errors, and achieve the effects of avoiding query errors, improving query efficiency, and ensuring correct association

Inactive Publication Date: 2019-08-30
ZTE CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If you query blindly, it may lead to errors or lead to low query efficiency

Method used

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  • A device positioning method and system
  • A device positioning method and system
  • A device positioning method and system

Examples

Experimental program
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Embodiment 1

[0064] The application scenario of this embodiment is: in the EPS system, when the service is initiated, the NAT server allocates the corresponding port number for external communication for the service, and the PCRF queries the private IP address and port number and the public IP address and port number to the NAT server Correspondence. Wherein, the public IP address and port number of the service are dynamically specified by the NAT server when the service is initiated.

[0065] In this embodiment, the PCEF resides in the P-GW, and the ID of the NAT server is configured on the P-GW / PCEF, or the P-GW / PCEF acquires the ID of the NAT server in other ways, wherein the ID is generally IP address or FQDN, when P-GW / PCEF initiates a Gx session / IP-CAN session modification request to PCRF, P-GW / PCEF carries the ID of the NAT server, the private IP address and port number of the service; PCRF according to The ID of the NAT server reported by the P-GW / PCEF finds the corresponding NAT ...

Embodiment 2

[0086] The application scenario of this embodiment is: in the EPS system, when the Gx session / IP-CAN session is established, the PCRF goes to the NAT server to query the address information after NAT. Wherein, the fixed corresponding relationship between the private IP address of the service and the set of public IP addresses and port numbers is configured in the NAT.

[0087] In this embodiment, the PCEF resides in the P-GW, and the ID of the NAT server is configured on the P-GW / PCEF, or the P-GW / PCEF acquires the ID of the NAT server in other ways, wherein the ID is generally IP address or FQDN, when P-GW / PCEF initiates a Gx session / IP-CAN session establishment request to PCRF, P-GW / PCEF carries the ID of the NAT server and the private IP address of the service; PCRF according to the P-GW / PCEF Find the corresponding NAT server with the ID of the reported NAT server, and query the public IP address and port number corresponding to the private IP address. The device positioni...

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Abstract

The present invention discloses a method for locating a device, comprising: a policy and charging enforcement entity (PCEF) sends the identity (ID) of a network address translation (NAT) device to a policy and charging rule function (PCRF); the PCRF according to The received ID of the NAT device is used to query the corresponding NAT device for address translation relationship information. The present invention also discloses a PCRF and equipment positioning system. By adopting the method, PCRF and system of the present invention, NAT equipment can be accurately located when querying address information after NAT, thereby effectively avoiding query errors and improving query efficiency .

Description

technical field [0001] The present invention relates to the communication field, in particular to a device positioning method and system. Background technique [0002] The Evolved Packet System (EPS, Evolved Packet System) of the 3rd Generation Partnership Project (3GPP, 3rd Generation Partnership Project) is composed of the Evolved Universal Terrestrial Radio Access Network (E-UTRAN, Evolved Universal Terrestrial Radio Access Network), Mobility Management Entity (MME, Mobility Management Entity), Serving Gateway (S-GW, Serving Gateway), Packet Data Network Gateway (P-GW or PDN GW, Packet Data Network Gateway), Home Subscriber Server (HSS, Home Subscriber Server), Composed of Policy and Charging Rules Function (PCRF, Policy and Charging Rules Function) entities and other supporting nodes. [0003] figure 1 It is a schematic diagram of the architecture of the EPS system of the 3GPP network. like figure 1 As shown, in the EPS system, the E-UTRAN is connected to the MME thr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H04W8/26H04L29/12
CPCH04W8/26H04L61/2503
Inventor 毕以峰周晓云刘小华郑兴明吴近峰
Owner ZTE CORP
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