International mobile equipment identification inspection method and system for power wireless private network

Abstract

The embodiment of the invention provides an international mobile equipment identification inspection method and system for a power wireless private network. The method comprises the following steps: registering an international mobile subscriber identity (IMSI) and an international mobile equipment identity (IMEI) of user equipment (UE) into a database accessible to a home subscriber server (HSS) in an associated manner, and setting an IMEI use state of the IMEI in the database; enabling the UE to send an attachment request message carrying the IMSI to the MME; enabling the MME to initiate an authentication information request carrying an IMSI to the HSS, wherein the authentication information request carries a flag bit used for indicating whether the HSS queries an IMEI matched with the IMSI or not, wherein when the flag bit indicates that the IMEI matched with the IMSI is inquired, the HSS accesses a database to inquire the IMEI matched with the IMSI and the IMEI use state of the IMEI and returns an authentication information response message to the MME, and the authentication information response message carries the IMEI matched with the IMSI and the IMEI use state of the IMEI. And the acquisition and inspection process of the ME identifier is simplified.

Description

technical field [0001] The invention belongs to the technical field of electric power wireless private network communication systems, and in particular relates to a method and system for checking an international mobile device identification of electric power wireless private network. Background technique [0002] With the development of smart grid construction, the demand for reliability and security of electric power business continues to increase, and the construction of electric power wireless private network has received more and more attention. Smart grid power distribution business terminals are widely spread and scattered. Although the optical fiber communication method has the advantage of strong business transmission capabilities, deployment and construction are difficult and costly, and cannot meet the full coverage of massive power distribution terminals. With the rapid development of wireless broadband communication technology, as a supplementary means of power ...

AI Technical Summary

Problems solved by technology

If the terminal user can successfully pass the ME identification verification, the complicated signaling interaction will undoubtedly increase the terminal attachment delay. The identity authentication process is the wireless interface interactive signaling, which occupies air interface resources and increases the burden on the air interface.

If the terminal user cannot successfully pass the ME identification verification, according to the 3GPP protocol process, the core network side needs to obtain the equipment identification register (EIR) or the ME identification verification result returned by the HSS before judging the abnormality and rejecting the terminal's attachment request. During the attachment process, it is found that the ME identification is abnormal in time, which undoubtedly leads to the meaningless occupation of core network signaling resources.

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