Abstract: A cellular communication system is provided comprising a terminal, a base station (for example UMTS) and a communication equipment designed to transmit data to a terminal and which is not provided with an uplink channel (for example using an OFDM technique). By transmitting via the TCP channel data other than those for controlling the power of the receiver base station, the terminal can control the power of the OFDM system transmitting high speed data to the terminal, the OFDM system being coupled to the UMTS network with which the terminal communicates.

Abstract: A radio communication device includes at least one radio communication module including baseband and/or radio frequency signal processing. The module of the device carries an internal SIM card, permanently welded thereto.

Abstract: The invention concerns a method for processing a signal using an approximate MAP (maximum a posteriori) algorithm for determining a likelihood ratio ?kX of a set of states X of a lattice at a time k, with each of said states being associated at least one intermediate variable belonging to a group comprising a so-called forward variable and a so-called backward variable, propagated by said MAP algorithm and recursively calculated respectively in a direct orientation and in an indirect orientation at said time k relative to said lattice. The invention is characterized in that said process comprises a step which consists in reducing the number of selected states by said MAP algorithm so as to calculate said likelihood ratio, and, for at least some unselected states, in assigning to said forward variable and/or said backward variable at least one specific value, to calculate an approximate likelihood ratio.

Abstract: The disclosure relates to a method of synchronising a device for receiving scrambled data, using at least one periodic scrambling sequence which is divided into K time intervals, each interval comprising N bit periods known as symbols. In particular, one such method includes calculating a synchronisation value of at least one polynomial that generates the aforementioned scrambling sequence within a pre-determined synchronisation time interval and synchronisation bit period. During the calculation step, the sequence is progressed through at increments of at least one time interval and at least one bit period, using a matrix calculation of the synchronisation value.

Abstract: It is proposed an in-system programming process, by programming equipment of at least one non-volatile storage memory of a communication device. The process includes the following steps: transmission, by the programming equipment to the communication device, of at least one extension file; transmission, by at least one of the extension files, called an enlightening extension file, of at least one first item of configuration information for the communication device; selection, by the programming equipment depending on the first item(s) of configuration information for the communication device of at least one data file associated to an internal application of the communication device; and transmission, by the programming equipment to the storage memory, of the selected data file(s).

Abstract: In a cellular communication network, first and second base stations have first and second cells that at least partially overlap in a common geographic zone. In a first synchronization step, a terminal is synchronized by receiving a synchronizing signal transmitted by the first base station. In a second synchronization step, the terminal is synchronized by receiving a predetermined signal dedicated to multiple path processing that is transmitted by the second base station.

Abstract: The invention concerns a radiocommunication module, of the type hosting and executing a main software providing in particular radiocommunication functions. The main software comprises means for executing drive controls, sent to the main software and belonging to a predetermined set of drive controls. The invention is characterised in that the radiocommunication module further hosts and executes at least a client software, called onboard client software. The onboard client software and the main software comprise means enabling the onboard client software acts at least as one of the following: a driver client software, sending drive controls to the main software, and receiving from the main software responses, resulting from the execution of some of the drive controls; a supervising client software, managing the execution if the drive controls sent by a driver client software, called external client software, hosted and executed by a third party equipment co-operating with the radiocommunication module.

Abstract: The disclosure relates to a cellular radiotelephone signal of the type comprising, a principal bidirectional symmetrical channel, comprising a principal uplink path and a principal downlink path, particularly to guarantee transmission of data at low or medium rate and of the signalling information and commands, at least one auxiliary channel working only in the downlink sense, particularly to guarantee the data transmission at high rates, using a multi-carrier technique which gives a distribution of data over time and frequency, with a sub-frame structure. The beginning of at least one sub-frame in the supplemental channel is offset by a time interval of fixed duration which is not zero (?t) with relation to a determined time (t0), fixed in the principal channel, such as to permit a synchronization at the sub-frame level of the supplementary channel in a terminal, by instantaneous detection of said determined time (t0) and addition of said time interval (?t).

Abstract: The invention relates to a system for remotely monitoring equipment which makes it possible to interconnect at least one server and at least one remote equipment according to a predetermined protocol. The inventive system is associated with at least one remote equipment of radiocommunications means emitting and receiving AT instructions emitted by and/or destined for an external application carried out by said remote equipment. Said means is provided with a set of specific instructions making it possible to manage the data exchange between said remote equipment and at least one server performing said protocol, wherein at least one of said instructions enables said radiocommunications means to produce, modify and/or to send format XML pages.

Abstract: The disclosure relates to a method for receiving a modulated signal according to a main constellation, known as a mail signal, and at least one signal which is modulated according to a second constellation, known as a second signal. The second constellation is included in the main constellation. The method comprises a demodulation stage for the main signal, which delivers reliability information, known as main reliability information, relating to the receipt of an element for each of the elements of the main constellation. Said method further comprises a determination stage for at least one element of the second constellation, at least one item of reliability information, known as second reliability information, relating to the reception of the element, based on main reliability information, in order to modulate the second signal.

Abstract: A method and apparatus are provided for the transmission of radio data between at least two transmitters and one receiver, said method employing at least one multi-carrier data transmission signal. The aforementioned multi-carrier signal is formed by a temporal succession of symbols comprising: (i) informative data elements, and (ii) reference elements known as pilots which are distributed within the informative data elements according to a pre-determined pattern. Moreover, the value of said pilots at transmission is known to the receiver. At least two transmitters use different pilot patterns such that, at a give instant and a give frequency, only one pilot can be received (possibly with other informative data elements) by the receiver from other transmitters.

Abstract: The disclosure relates to a dual-mode terminal for accessing to at least first radiocommunications network in a first operating mode and to at least one local communication network in a second operating mode. The dual-mode terminal includes means for detecting the presence of said terminal, at least according to location information related thereto, in a geographic service area associated with said second network, known as a positive presence, and means for connecting, in the case of said positive presence, to the second network in such a way that the terminal operates in priority in said second mode.

Abstract: A method is provided for extracting a sequence of pilot symbols enabling to estimate the transfer function of a transmission channel. At least a radiocommunication device communicates through the channel with a remote station, the latter regularly delivering to the radiocommunication device a reference pattern. The structure of the reference pattern is variable, depending on at least one characteristic of the transmission channel.

Abstract: The invention relates to a method for designing a digital reception filter for a main signal. According to the invention, such a method includes the steps of: modelling at least one channel for transmission of at least one signal interfering with said main signal, so as to obtain an interfering channel model; whitening of said at least one interfering signal, by means of a whitening filter taking into account said interfering channel model and a noise on said model, referred to as a model noise; calculating coefficients of said digital receiving filter on the basis of least one coefficient of said whitening filter.

Abstract: The invention concerns audio signal processing, comprising: a first processing of an audio source signal, using at least a mathematical transform applied on first sequences of samples obtained by applying first segmentation windows on the audio source signal; and a second audio processing applied on second sequences of samples obtained by applying second segmentation windows on the signal delivered by the first step; the two successive first windows and/or the two successive second windows overlapping, the overlaps being such that the segmentations are synchronous.

Abstract: The disclosure relates to a radiocommunications device capable of operating on at least two emission frequency bands and at least two reception frequency bands, comprising first means for carrying out communications according to a first predetermined standard. The device also comprises second means for carrying out communications according to a second predetermined standard while using, at least in part, at least one of these frequency bands.

Abstract: The disclosure relates to a system for remote controlling equipment, which allows at least one server and at least one remote piece of equipment to be interconnected according to the MQIsdp protocol. Said system associates at least one of said remote pieces of equipment with radiocommunication means that emit and receive AT-type commands issued by and/or addressed to an external application which is used by said distance piece of equipment. Said radiocommunication means are provided with a set of specific AT commands for exchanging data with at least one server that uses the MQIsdp protocol such that said server/s and said remote piece/s of equipment can be interconnected via said radiocommunication means without the distant pieces of equipment having to know the MQIsdp protocol.

Abstract: A method and apparatus are provided for enabling at least one client terminal, which is connected to a first communication network, to access the data and/or services of a mobile server terminal, which is connected to a second communication network. The first and second networks can coexist on or form a single network. One such method includes at least the following steps: a communication session is initialized by the client terminal with the mobile server terminal; and the communication session is established by opening a direct communication tunnel between the client terminal and the server terminal. In this way, the client terminal can consult the information made available by the server terminal and/or the client terminal can use and/or interact with all or part of the services of the server terminal.

Abstract: The disclosure relates to a radio frequency (RF) and/or microwave power amplification device which is intended, for example, for a radio communication terminal, comprising means for shielding the device and means for controlling the power delivered as output from said device, said power-control means comprising a power servo loop having power-amplification means, reference means, detection means and comparison means. The aforementioned control means also comprise at least one sensor to detect the energy radiated inside the device.

Abstract: The invention concerns a method for estimating the transfer function of a multicarrier signal transmission channel consisting of a temporal succession of symbols of a set of data elements, each of the data elements modulating a carrier frequency of the signal, the data elements comprising pilots and so-called informative data elements. The invention is characterized in that said method comprises: a step which consists in determining a set of two-dimensional discrete prolate spheroidal sequences (DPSS); a step which consists in writing the transfer function in the form of a combination of at least some of the two-dimensional discrete prolate spheroidal sequences (DPSS); a step which consists in time-based and frequency-based two-dimensional interpolation of at least some of the coefficients of the combination, so as to obtain an estimation of the transfer function at any point of a time-frequency network.