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virtualized Home Subscriber Server

vHSS

vHSS manages subscriber information such as subscriber numbers and authentication information on a database, and realizes an LTE service by connecting to the MME that controls call processing.

Virtualization technology enables operation on a general-purpose IA server, which saves power and space, and lowers TOC.

List of Functions

vHSS supports the S6a interface specified in 3GPP. The main functions are described below.

  Function Overview
1 Subscriber data management
- Stores subscriber information received from the MME in a database.
- Provides subscriber information when requested by the MME.
- Provides management functions (register, edit, delete, browse) for subscriber data through a maintenance interface.
2 Subscriber authentication - Generates authentication information and responds to authentication requests received from the terminal via the MME.
3 Location information management - When a terminal is moved, receives a request to update location information from the MME and registers, edits or deletes the database of the relevant terminal.
4 Synchronization between Mated-Pair - Enables synchronization of subscriber data between bases and strengthens redundancy by positioning (Mated-Pair configuration) vHSS at two bases.
5 Operation and maintenance - Configures settings and displays system data and office data.
- Manages information such as system processes, logs, failures, alarms, maintenance history, and statistical information.

Regional Redundant Function

Even if a failure occurs in a particular region, the remote synchronization function based on remote vHSS enables operation to continue without interrupting the service.

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