France Telecom

Francedillaois Despres

Olivier Blondeau

Christophe Desseignes

Alain Charbonnier

A protocol for interconnection between fixed radio stations of a cellular telephony network for the transmission of management messages to manage the cellular radiotelephony network in asynchronous mode transmission or DQDB, in which geographical coordinates are assigned to each fixed radio station of the network, and a virtual-ring interconnection for any set of two neighboring stations is formed. The management messages between neighboring stations, identified on the basis of their geographical coordinates, on the virtual ring, using a self-adaptive intercommunication process are transmitted.

Protocol for self-adaptive intercommunication between fixed radio

Communication process in a telecommunications network

A method for local routing of calls coming from the switched telephone network in a cellular mobile network includes, following a procedure of locating/authenticating the mobile subscriber transmitter/receiver with a fixed radio locating FRLT terminal, forwarding to the FRLT personal communications service subscription data, such as a radio receiver/transmitter (RTR) confidential code and identification number, in attributing a direct inward dialling number (DID number), to the transmitter/receiver and, within the FRLT, forwarding the DID number and the RTR confidential code to a service access authentication center (SAAC). Upon receiving an incoming call from a subscriber telephone handset (STH), an interrogation message with the RTR telephone number is forwarded to the SAAC, and from the SAAC to the FRLT. Upon reception of the interrogation message, a call message containing at least the DID number is forwarded from the SAAC to the FRLT. A transmitter/receiver call procedure is thus initiated from the FRLT, and, upon the transmitter/receiver response, the communication between the STH and the transmitter/receiver is thus established.

Protocol for local routing of calls coming from the switched telephone

The present invention relates to a communication process in a radio communication system with mobile terminals, in conjunction with at least one fixed base station, using the radio interface standard CAI-CT2, in which during the establishment of a communication between a base station (10) and a mobile terminal (15), the base station supplies the mobile terminal (15) with a radio link reference, which is a function of the identity of said mobile terminal (15). This link reference enables another base station in the network to distinction a handover request from a private communication establishment request.

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Bievres, France

Francedillaois Despres