Distributed home subscriber server (HSS) data storage method and distributed HSS data extraction method

Abstract

The invention discloses a distributed home subscriber server (HSS) data storage method. The method includes that an HSS server receives a data write-in request from a call session control function (CSCF) server in a home region, extracts an IP multimedia subsystem public user identity (IMPU) from the data write-in request and performs Hash calculation to the IMPU to obtain a corresponding key value, the HSS server finds an immediate successor HSS server corresponding to the key value in a local distributed hash table (DHT) ring and sends the data write-in request to the immediate successor HSS server, the immediate successor HSS server finishes the write-in of data, sends a response message to the HSS server and informs the HSS server of the finish of the write-in of the data, and the immediate successor HSS server simultaneously triggers a data write-in request to all remaining immediate successor HSS nodes according to copy numbers configured in configuration files, receives a message of the finish of the write-in of data copies from the immediate successor nodes and judges whether the write-in request comes from the outside of the home region according to the IMPU in the data write-in request. According to the distributed HSS storage method, the reliability of data storage can be guaranteed.

Description

technical field [0001] The invention belongs to the technical field of telecommunications, and more specifically relates to a distributed HSS data storage method and a distributed HSS data extraction method. Background technique [0002] IP multimedia subsystem (IMS for short) is a brand-new multimedia service form, which can meet the needs of current terminal customers for newer and more diversified multimedia services, and is the basis for the convergence and evolution of fixed and mobile networks. . Home subscriber server (HSS for short), as one of the most important network elements in IMS, is responsible for storing user data and providing authentication, routing, and authentication for the core call session control function (CSCF for short). support. The currently deployed IMS networks are operated independently by provinces or regions, and each operation domain has its own centralized HSS data center that is independent of each other. Each operation domain uses a h...

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Problems solved by technology

[0004] Aiming at the defects of the prior art, the purpose of the present invention is to provide a distributed HSS data storage method, which aims to solve the above-mentioned prob

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