Abstract:
Method of managing the operation of a wireless communication device including several different communication modules respectively adapted to operate according to several given communication protocols including an UWB protocol based on an OFDM modulation scheme, said method comprising controlling (10) said UWB module for scanning (11) a chosen frequency band, and managing (12) a communication to be performed by said device on the basis of the scanning result.
Abstract:
The electrical consumption of a cellular mobile telephone is reduced by using fractional-division phase-locked loops receiving a frequency reference from a fairly inaccurate quartz oscillator. Electrical consumption is also reduced by switching the output of the oscillator onto the input of the processing stage when the transmission/reception stage is inactive. The fractional-division phase-locked loops can then be deactivated.
Abstract:
The method comprises a main interference reduction mode (MIRM) for reducing interferences generated by a wide band device towards a narrow band device; Said method is performed within said wide band device and includes the steps of detecting (40) an emission from and/or a reception performed by said narrow band device, determining (41) from said detection step a group of at least one sub-carrier having frequencies interfering with the narrow band device determining (42) the bits which correspond to the information carried by said interfering sub-carriers of said group and processing (43) said determined bits such that they are mapped into a reference symbol having an amplitude equal or close to zero.
Abstract:
The electronic device comprises a source memory means partitioned in N elementary source memories for storing a sequence of input data, processing means (MAP1) clocked by a clock signal and having N outputs for producing per cycle of the clock signal N data respectively associated to N input data respectively stored in the N elementary source memories at relative source addresses, N single port target memories (TMi), N interleaving tables (ILTi) containing for each relative source address the number of one target memory and the corresponding relative target address therein, N cells (CLi) connected in a ring structure, each cell being further connected between one output of the processing means, one interleaving table, and the port of one target memory, each cell being adapted to receive data from said output of the processing means and from its two neighbouring cells or to write at least some of these received data sequentially in the associated target memory, in accordance with the contents of said interleaving tables.
Abstract:
According to a particular application, the wireless apparatus comprises a millimeter-wave communication interface (MMWINT) configured to exchange information within a millimeter-wave communication network, an UWB communication interface (MCINT) and control means (CTRLM) configured to activate said UWB interface for communicating location indication to said communication network according to an UWB communication standard, said location indication being intended for locating the wireless apparatus within said network.
Abstract:
Method for detecting the eventual presence of an interferer adapted to interfere with a wireless device, said wireless device being provided with at least one receiving chain including an analog to digital conversion (ADC) stage, said method comprising receiving (30) on said receiving chain an incident signal, delivering (31) to said ADC stage an analog signal from said incident signal, elaborating (33) a binary information from a binary signal (BS) delivered by said ADC stage and representative of the level of said analog signal, analyzing (34) a temporal evolution of said binary information (BINF) and detecting (35) the eventual presence of said interferer from said analysis.
Abstract:
Method of managing the operation of a first apparatus belonging to a first communication system and adapted to exchange within said first communication system a multi-carriers modulated signal on several sub-carriers, comprising detecting (10) at said first apparatus (APP1) the eventual presence of an interfering signal emitted from a victim apparatus (APP2) on at least one sub-carrier, determining (11) at said first apparatus the path loss between both apparatuses, determining (12) from said path loss and from an allowed interference level at said victim apparatus a maximum allowed transmit power on said at least one sub-carrier of a multi-carriers modulated signal to be transmitted from said first apparatus, adjusting (13) within said first apparatus the processing of said multi-carriers modulated signal to be transmitted in accordance with said maximum allowed transmit power.
Abstract:
A device (WAP1) belonging to a wireless communication system and adapted to exchange information with another device of said system within a main band of frequencies, comprises: N different antennas (ANT1, ANT2) having respectively different antenna characteristics, N being greater than one, controllable selecting means (SWM) adapted to select one antenna, detection means (DTM) adapted to detect through said selected antenna the eventual presence of at least one interferer operating within the main band of frequencies, and control means (CTLM) adapted upon presence of a detected interferer to control said selecting means for selecting another antenna.
Abstract:
For controlling the decoding latency, larger blocks are non equally segmented into smaller ones. The decoding process can start directly after reception of the first small block. And the latency is defined by the latency of the last small block decoding. Changing the number of iterations during the turbo-code decoding permits also to control the decoding latency.