METHOD FOR UPDATING A TABLE OF CORRESPONDENCE BETWEEN A LOGICAL ADDRESS AND AN IDENTIFICATION NUMBER

摘要

This invention relates to a Method for updating a table of correspondence between a logical address associated to a user unit in a communication network and a unique identification number associated to a user unit of a group of user units managed by a management centre, a method in which messages are exchanged between said management centre and at least one specific user unit of said group by means of said communication network, these messages being forwarded to the specific user unit using the logical address of said user unit in said network, wherein it includes the steps of searching in said table of correspondence for the logical address of the user unit in said communication network corresponding to the unique identification number of the specific user unit; of sending of messages to the user unit having the concerned unique identification number, to the logical address corresponding to said communication network; in the case of incorrect reception of the messages, sending of a request containing an identifier of said specific user unit (STB*), this request being sent to all or part of the user units (STB) forming said group; detection of a return message of a user unit (STB*) whose unique identification number (UA*) corresponds to said identifier contained in the request; determination of the logical address (AD*) in said network, used by the user unit (STB*) having transmitted the return message; verification of the logical address (AD) by establishing a communication between the management centre and the user unit (STB*) and authentication of the specific user unit by the management centre; storage in the table of correspondence (TC) of the management centre of said logical address (AD*) of the user unit in said network, in connection with said unique identification number (UA*) of the user unit (STB*) having transmitted the return messages.

主权项

1. A method for updating a table of correspondence between a logical address associated to a user unit in a communication network and a unique identification number associated to a user unit of a group of user units managed by a management centre, a method in which messages are exchanged between said management centre and at least one specific user unit of said group by means of said communication network, these messages being forwarded to the specific user unit using the logical address of said user unit in said network, wherein it comprises the following steps:
search in said table of correspondence for the logical address of the user unit in said communication network corresponding to the unique identification number of the specific user unit; sending of messages to the user unit having the concerned unique identification number, to the logical address corresponding to said communication network; in the case of incorrect reception of the messages, sending of a request containing an identifier of said specific user unit, this request being sent to all or a part of the user units forming said group; detection of a return message of a user unit whose unique identification number corresponds to said identifier contained in the request; determination of the logical address in said network, used by the user unit having transmitted the return message; verification of the logical address by establishing a communication between the management centre and the user unit and authentication of the specific user unit by the management centre, storage in the table of correspondence of the management centre of said logical address of the user unit in said network, in connection with said unique identification number of the user unit having transmitted the return messages.