Orange S.A.

About: Orange S.A. is a company organization based out in Paris, France. It is known for research contribution in the topics: Terminal (electronics) & Signal. The organization has 6735 authors who have published 9190 publications receiving 156440 citations. The organization is also known as: Orange SA & France Télécom.

Cell testing in cellular telecommunication network

Abstract: To test a cell in a cellular telecommunication network, a test mobile station is placed in the network near the cell and a server is connected to fixed communication devices of the network via a switched telephone network. The cell is confirmed to be operating correctly if a first call requested by the server to the test mobile station is set up and then cleared down by the test mobile station after first parameters transmitted by the server are received in the test mobile station, and thereafter if a second call requested by the test mobile station to the server via the cell under test is set up and then cleared down by the test mobile station after second parameters emitted by the test mobile station are received in the server. If this is not the case, the server reports incidents during the first or second call.

Method for binary coding of quantization indices of a signal envelope, method for decoding a signal envelope and corresponding coding and decoding modules

Abstract: The invention concerns a module (402) for binary coding of a signal envelope, comprising a coding module (502) of a first variable length mode. According to the invention, the coding module of a first mode incorporates an envelope saturation detector and said coding module (402) also comprises a second coding module (503) of a second mode, arranged parallel to the coding module (502) of the first mode, and a mode selector (504) capable of maintaining one of the two coding modes, based on a code length criterion and on the result derived from the envelope saturation detector. The invention is applicable to coding by audiofrequency signal transform.

System and method for managing long lived connections from a plurality of applications running on a wireless device

Abstract: A proxy server for deploying data content to a plurality of client applications running on a single electronic device, each application being operable to receive on a request basis the data content from a corresponding data service. The proxy server processing a first connection between the electronic device and a first data service for deploying first data content from said first data service to a first client application requesting the first data content via the proxy server, processing a second connection between the electronic device and a second data service for deploying second data content from the second data service to a second client application requesting the second data content via the proxy server.

Full polarization insensitivity of a 20 Gb/s strained-MQW electroabsorption modulator

Abstract: We report on a MQW electroabsorption modulator with tensile-strained wells. The device transmission is shown to be fully polarization insensitive, i.e. both in amplitude and phase. The modulation efficiency is over 20 GHz/V (bandwidth higher than 20 GHz and 1 V drive voltage) which is the highest figure of merit reported for any kind of polarization insensitive modulator. Full polarization independence is further demonstrated by 2.5 Gb/s transmission at 1.55 /spl mu/m over 475 km of standard fiber without penalty at 10/sup -9/ BER whatever the polarization. >

Method, device a program for detecting an unauthorised connection to access points

Abstract: The invention relates to a method for detecting the unauthorised connection to a wireless network. A passive radio listening (101) males it possible to retrieve exchanged frames. Specific frames identifying the access points are stored (104). When two frames coming from the same access point are recorded, types of time information are compared (105). When the difference between types of time information does not correspond to a desired value, the unauthorised connection is detected.