Orange

France Telecom

Fabrice Guillemin

Veronica Karina Quintuna Rodriguez

Alexandre Ferrieux

Michel Servel

Pierre Boyer

Isabelle Hamchaoui

Olivier Dugeon

William David Diego Maza

Christophe Mangin

Philippe Cadro

A method and a device for matching a quantization table of data representative of a radio signal received by a radio antenna of a mobile network. The method includes: obtaining an item of information representative of a channel decoding error rate of a decoded quantized demodulated signal from a demodulation of the radio signal received by the antenna, the demodulated radio signal having been quantized by the quantization table, and the quantized demodulated radio signal having undergone a channel decoding; matching the quantization table when the channel decoding error rate is higher than a determined threshold; and transmitting an item of information representative of the matching of the quantization table to a channel decoding device or to a demodulation device.

Method and device for quantizing data representative of a radio signal received by a radio antenna of a mobile network

A method for quantizing data representative of a radio signal received by a radio antenna of a mobile network. The method includes: demodulating the radio signal received by the antenna, providing a demodulated signal; scalar quantizing each value of the demodulated signal using a quantization table selected according to a channel coding level used to transmit the radio signal, providing a quantized demodulated signal; and transmitting the quantized demodulated signal to a channel decoding module.

A method is proposed for processing of data packets received by an upstream node and intended for transmission to a terminal by a downstream node. The upstream node includes a queue of non-priority data packets intended for the terminal. The method includes: obtaining a first piece of information representing a filling state of the above-mentioned queue over a predetermined period of observation; when the first piece of information obtained has a value indicating a filling level of the queue that is lower than or equal to a first predetermined non-zero low threshold, reducing a rate of departure from the queue; when the first piece of obtained information has a value indicating a filling level of the queue that is higher than a first predetermined high threshold higher than or equal to the first low threshold, increasing the rate of departure from the queue.

Methods for the processing of data packets, corresponding device, computer program product, storage medium and network node

Data flows generated in accordance with a connected mode protocol and formatted in packets in accordance with a non-connected mode protocol are transmitted via an ATM network. A set of virtual circuits of the ATM network is assigned in advance to each pair of access points of the ATM network, without allocating transmission rate resources to them. When an access point receives a request, formulated in accordance with the connected mode protocol, to establish a connection between a source address and a destination address accessible via another access point of the ATM network, an available virtual circuit is selected from the set assigned to this pair of access points and a resource management cell containing a request to activate the virtual circuit is transmitted on the selected virtual circuit. When this cell is received by a node of the ATM network located on the selected virtual circuit, a transmission rate resource is allocated, if it is available, to the selected virtual circuit.

Method of transmitting data flows over an ATM network and device for implementing the method

There is assigned to each virtual circuit a period (pm) corresponding to the theoretical minimum period between two consecutive cells of the virtual circuit and a maximum time limit (dm). The imaginary time of emission on the output multiplex of the last cell belonging to each virtual circuit is stored, and, upon the arrival of a new cell of a virtual circuit, a threshold time calculated by adding its actual time of arrival and the maximum time limit is compared with the imaginary time of emission expected of the new call in the course of being processed, the time being calculated by adding the imaginary time of emission of the last cell emitted and the minimum period (pm). If the result of this comparison shows that the threshold time is earlier than the imaginary time of emission expected (tde+pm), the incoming cell is not re-emitted, whilst, if it shows that the threshold time is later than the imaginary time of emission expected (tde+pm), it is emitted on the output multiplex, the imaginary time of emission of the incoming cell then being calculated, then stored in relation to the virtual circuit to which the incoming cell belongs.

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Pleumeur-Bodou, France

Fabrice Guillemin